зеркало из https://github.com/mozilla/gecko-dev.git
548 строки
14 KiB
C++
548 строки
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Brian Ryner.
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* Portions created by Brian Ryner are Copyright (C) 2000 Brian Ryner.
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* All Rights Reserved.
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*
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* Contributor(s):
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* Brian Ryner <bryner@uiuc.edu>
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*/
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// finger implementation
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#include "nsFingerChannel.h"
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#include "nsIServiceManager.h"
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#include "nsILoadGroup.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsXPIDLString.h"
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#include "nsISocketTransportService.h"
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#include "nsIStringStream.h"
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#include "nsMimeTypes.h"
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#include "nsIStreamConverterService.h"
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#include "nsITXTToHTMLConv.h"
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static NS_DEFINE_CID(kSocketTransportServiceCID, NS_SOCKETTRANSPORTSERVICE_CID);
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static NS_DEFINE_CID(kStreamConverterServiceCID, NS_STREAMCONVERTERSERVICE_CID);
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#define BUFFER_SEG_SIZE (4*1024)
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#define BUFFER_MAX_SIZE (64*1024)
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// nsFingerChannel methods
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nsFingerChannel::nsFingerChannel()
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: mContentLength(-1),
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mActAsObserver(PR_TRUE),
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mPort(-1),
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mStatus(NS_OK)
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{
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NS_INIT_REFCNT();
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}
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nsFingerChannel::~nsFingerChannel() {
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}
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NS_IMPL_THREADSAFE_ISUPPORTS4(nsFingerChannel, nsIChannel, nsIRequest,
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nsIStreamListener, nsIStreamObserver)
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nsresult
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nsFingerChannel::Init(nsIURI* uri)
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{
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nsresult rv;
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nsXPIDLCString autoBuffer;
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NS_ASSERTION(uri, "no uri");
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mUrl = uri;
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// For security reasons, we do not allow the user to specify a
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// non-default port for finger: URL's.
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mPort = FINGER_PORT;
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rv = mUrl->GetPath(getter_Copies(autoBuffer)); // autoBuffer = user@host
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if (NS_FAILED(rv)) return rv;
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nsCString cString(autoBuffer);
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nsCString tempBuf;
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PRUint32 i;
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// Now parse out the user and host
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for (i=0; cString[i] != '\0'; i++) {
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if (cString[i] == '@') {
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cString.Left(tempBuf, i);
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mUser = tempBuf;
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cString.Right(tempBuf, cString.Length() - i - 1);
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mHost = tempBuf;
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break;
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}
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}
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// Catch the case of just the host being given
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if (cString[i] == '\0') {
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mHost = cString;
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}
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#ifdef DEBUG_bryner
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printf("Status:mUser = %s, mHost = %s\n", (const char*)mUser,
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(const char*)mHost);
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#endif
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if (!*(const char *)mHost) return NS_ERROR_NOT_INITIALIZED;
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return NS_OK;
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}
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NS_METHOD
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nsFingerChannel::Create(nsISupports* aOuter, const nsIID& aIID, void* *aResult)
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{
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nsFingerChannel* fc = new nsFingerChannel();
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if (fc == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(fc);
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nsresult rv = fc->QueryInterface(aIID, aResult);
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NS_RELEASE(fc);
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return rv;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIRequest methods:
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NS_IMETHODIMP
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nsFingerChannel::GetName(PRUnichar* *result)
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{
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NS_NOTREACHED("nsFingerChannel::GetName");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::IsPending(PRBool *result)
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{
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NS_NOTREACHED("nsFingerChannel::IsPending");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::GetStatus(nsresult *status)
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{
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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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nsFingerChannel::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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nsresult rv = NS_ERROR_FAILURE;
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mStatus = status;
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if (mTransport) {
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rv = mTransport->Cancel(status);
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}
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return rv;
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}
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NS_IMETHODIMP
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nsFingerChannel::Suspend(void)
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{
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NS_NOTREACHED("nsFingerChannel::Suspend");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::Resume(void)
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{
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NS_NOTREACHED("nsFingerChannel::Resume");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIChannel methods:
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NS_IMETHODIMP
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nsFingerChannel::GetOriginalURI(nsIURI* *aURI)
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{
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*aURI = mOriginalURI ? mOriginalURI : mUrl;
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NS_ADDREF(*aURI);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFingerChannel::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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nsFingerChannel::GetURI(nsIURI* *aURI)
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{
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*aURI = mUrl;
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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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nsFingerChannel::SetURI(nsIURI* aURI)
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{
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mUrl = aURI;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFingerChannel::OpenInputStream(nsIInputStream **_retval)
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{
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nsresult rv = NS_OK;
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NS_WITH_SERVICE(nsISocketTransportService, socketService, kSocketTransportServiceCID, &rv);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIChannel> channel;
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rv = socketService->CreateTransport(mHost, mPort, nsnull, -1, BUFFER_SEG_SIZE,
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BUFFER_MAX_SIZE, getter_AddRefs(channel));
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if (NS_FAILED(rv)) return rv;
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rv = channel->SetNotificationCallbacks(mCallbacks);
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if (NS_FAILED(rv)) return rv;
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return channel->OpenInputStream(_retval);
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}
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NS_IMETHODIMP
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nsFingerChannel::OpenOutputStream(nsIOutputStream **_retval)
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{
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NS_NOTREACHED("nsFingerChannel::OpenOutputStream");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::AsyncRead(nsIStreamListener *aListener, nsISupports *ctxt)
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{
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nsresult rv = NS_OK;
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NS_WITH_SERVICE(nsISocketTransportService, socketService, kSocketTransportServiceCID, &rv);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIChannel> channel;
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rv = socketService->CreateTransport(mHost, mPort, nsnull, -1, BUFFER_SEG_SIZE,
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BUFFER_MAX_SIZE, getter_AddRefs(channel));
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if (NS_FAILED(rv)) return rv;
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rv = channel->SetNotificationCallbacks(mCallbacks);
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if (NS_FAILED(rv)) return rv;
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mListener = aListener;
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mResponseContext = ctxt;
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mTransport = channel;
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return SendRequest(channel);
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}
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NS_IMETHODIMP
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nsFingerChannel::AsyncWrite(nsIInputStream *fromStream,
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nsIStreamObserver *observer,
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nsISupports *ctxt)
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{
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NS_NOTREACHED("nsFingerChannel::AsyncWrite");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::GetLoadAttributes(PRUint32 *aLoadAttributes)
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{
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*aLoadAttributes = mLoadAttributes;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFingerChannel::SetLoadAttributes(PRUint32 aLoadAttributes)
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{
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mLoadAttributes = aLoadAttributes;
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return NS_OK;
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}
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#define FINGER_TYPE TEXT_HTML
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NS_IMETHODIMP
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nsFingerChannel::GetContentType(char* *aContentType) {
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if (!aContentType) return NS_ERROR_NULL_POINTER;
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*aContentType = nsCRT::strdup(FINGER_TYPE);
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if (!*aContentType) return NS_ERROR_OUT_OF_MEMORY;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFingerChannel::SetContentType(const char *aContentType)
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{
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//It doesn't make sense to set the content-type on this type
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// of channel...
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP
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nsFingerChannel::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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nsFingerChannel::SetContentLength(PRInt32 aContentLength)
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{
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NS_NOTREACHED("nsFingerChannel::SetContentLength");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::GetTransferOffset(PRUint32 *aTransferOffset)
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{
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NS_NOTREACHED("nsFingerChannel::GetTransferOffset");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::SetTransferOffset(PRUint32 aTransferOffset)
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{
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NS_NOTREACHED("nsFingerChannel::SetTransferOffset");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::GetTransferCount(PRInt32 *aTransferCount)
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{
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NS_NOTREACHED("nsFingerChannel::GetTransferCount");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::SetTransferCount(PRInt32 aTransferCount)
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{
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NS_NOTREACHED("nsFingerChannel::SetTransferCount");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::GetBufferSegmentSize(PRUint32 *aBufferSegmentSize)
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{
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NS_NOTREACHED("nsFingerChannel::GetBufferSegmentSize");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::SetBufferSegmentSize(PRUint32 aBufferSegmentSize)
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{
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NS_NOTREACHED("nsFingerChannel::SetBufferSegmentSize");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::GetBufferMaxSize(PRUint32 *aBufferMaxSize)
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{
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NS_NOTREACHED("nsFingerChannel::GetBufferMaxSize");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::SetBufferMaxSize(PRUint32 aBufferMaxSize)
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{
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NS_NOTREACHED("nsFingerChannel::SetBufferMaxSize");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::GetLocalFile(nsIFile* *file)
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{
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*file = nsnull;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFingerChannel::GetPipeliningAllowed(PRBool *aPipeliningAllowed)
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{
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*aPipeliningAllowed = PR_FALSE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFingerChannel::SetPipeliningAllowed(PRBool aPipeliningAllowed)
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{
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NS_NOTREACHED("SetPipeliningAllowed");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsFingerChannel::GetLoadGroup(nsILoadGroup* *aLoadGroup)
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{
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*aLoadGroup = mLoadGroup;
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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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nsFingerChannel::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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nsFingerChannel::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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nsFingerChannel::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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nsFingerChannel::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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nsFingerChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
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{
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mCallbacks = aNotificationCallbacks;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsFingerChannel::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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// nsIStreamObserver methods
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NS_IMETHODIMP
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nsFingerChannel::OnStartRequest(nsIChannel *aChannel, nsISupports *aContext) {
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if (!mActAsObserver) {
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// acting as a listener
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return mListener->OnStartRequest(this, aContext);
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} else {
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// we don't want to pass our AsyncWrite's OnStart through
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// we just ignore this
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return NS_OK;
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}
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}
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NS_IMETHODIMP
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nsFingerChannel::OnStopRequest(nsIChannel* aChannel, nsISupports* aContext,
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nsresult aStatus, const PRUnichar* aStatusArg)
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{
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#ifdef DEBUG_bryner
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printf("nsFingerChannel::OnStopRequest, mActAsObserver=%d\n",
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mActAsObserver);
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printf(" aChannel = %p\n", aChannel);
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#endif
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nsresult rv = NS_OK;
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if (NS_FAILED(aStatus) || !mActAsObserver) {
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if (mLoadGroup) {
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rv = mLoadGroup->RemoveChannel(this, nsnull, aStatus, aStatusArg);
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if (NS_FAILED(rv)) return rv;
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}
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rv = mListener->OnStopRequest(this, aContext, aStatus, aStatusArg);
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mTransport = 0;
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return rv;
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} else {
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// at this point we know the request has been sent.
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// we're no longer acting as an observer.
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mActAsObserver = PR_FALSE;
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nsCOMPtr<nsIStreamListener> converterListener;
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NS_WITH_SERVICE(nsIStreamConverterService, StreamConvService,
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kStreamConverterServiceCID, &rv);
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if (NS_FAILED(rv)) return rv;
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nsAutoString fromStr; fromStr.AssignWithConversion("text/plain");
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nsAutoString toStr; toStr.AssignWithConversion("text/html");
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rv = StreamConvService->AsyncConvertData(fromStr.GetUnicode(),
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toStr.GetUnicode(), this, mResponseContext,
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getter_AddRefs(converterListener));
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsITXTToHTMLConv> converter(do_QueryInterface(converterListener));
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if (converter) {
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nsAutoString title; title.AssignWithConversion("Finger information for ");
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nsXPIDLCString userHost;
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rv = mUrl->GetPath(getter_Copies(userHost));
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title.AppendWithConversion(userHost);
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converter->SetTitle(title.GetUnicode());
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converter->PreFormatHTML(PR_TRUE);
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}
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return aChannel->AsyncRead(converterListener, mResponseContext);
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}
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}
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// nsIStreamListener method
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NS_IMETHODIMP
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nsFingerChannel::OnDataAvailable(nsIChannel* aChannel, nsISupports* aContext,
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nsIInputStream *aInputStream, PRUint32 aSourceOffset,
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PRUint32 aLength) {
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mContentLength = aLength;
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return mListener->OnDataAvailable(this, aContext, aInputStream, aSourceOffset, aLength);
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}
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nsresult
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nsFingerChannel::SendRequest(nsIChannel* aChannel) {
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// The text to send should already be in mUser
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nsresult rv = NS_OK;
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nsCOMPtr<nsISupports> result;
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nsCOMPtr<nsIInputStream> charstream;
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nsCString requestBuffer(mUser);
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if (mLoadGroup) {
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mLoadGroup->AddChannel(this, nsnull);
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}
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requestBuffer.Append(CRLF);
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mRequest = requestBuffer.ToNewCString();
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rv = NS_NewCharInputStream(getter_AddRefs(result), mRequest);
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if (NS_FAILED(rv)) return rv;
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charstream = do_QueryInterface(result, &rv);
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if (NS_FAILED(rv)) return rv;
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#ifdef DEBUG_bryner
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printf("Sending: %s\n", requestBuffer.GetBuffer());
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#endif
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rv = aChannel->SetTransferCount(requestBuffer.Length());
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if (NS_FAILED(rv)) return rv;
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rv = aChannel->AsyncWrite(charstream, this, 0);
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return rv;
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}
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