gecko/uriloader/exthandler/ExternalHelperAppParent.cpp
2011-10-17 10:59:28 -04:00

392 lines
9.6 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/****** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is IPC External Helper App module.
*
* The Initial Developer of the Original Code is
* Brian Crowder <crowderbt@gmail.com>.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "ExternalHelperAppParent.h"
#include "nsIContent.h"
#include "nsIDocument.h"
#include "nsCExternalHandlerService.h"
#include "nsIExternalHelperAppService.h"
#include "mozilla/dom/ContentParent.h"
#include "nsIBrowserDOMWindow.h"
#include "nsStringStream.h"
#include "mozilla/unused.h"
#include "mozilla/Util.h" // for DebugOnly
namespace mozilla {
namespace dom {
NS_IMPL_ISUPPORTS_INHERITED4(ExternalHelperAppParent,
nsHashPropertyBag,
nsIRequest,
nsIChannel,
nsIMultiPartChannel,
nsIResumableChannel)
ExternalHelperAppParent::ExternalHelperAppParent(
const IPC::URI& uri,
const PRInt64& aContentLength)
: mURI(uri)
, mPending(false)
, mLoadFlags(0)
, mStatus(NS_OK)
, mContentLength(aContentLength)
{
}
void
ExternalHelperAppParent::Init(ContentParent *parent,
const nsCString& aMimeContentType,
const nsCString& aContentDispositionHeader,
const bool& aForceSave,
const IPC::URI& aReferrer)
{
nsHashPropertyBag::Init();
nsCOMPtr<nsIExternalHelperAppService> helperAppService =
do_GetService(NS_EXTERNALHELPERAPPSERVICE_CONTRACTID);
NS_ASSERTION(helperAppService, "No Helper App Service!");
SetPropertyAsInt64(NS_CHANNEL_PROP_CONTENT_LENGTH, mContentLength);
if (aReferrer)
SetPropertyAsInterface(NS_LITERAL_STRING("docshell.internalReferrer"), aReferrer);
mContentDispositionHeader = aContentDispositionHeader;
NS_GetFilenameFromDisposition(mContentDispositionFilename, mContentDispositionHeader, mURI);
mContentDisposition = NS_GetContentDispositionFromHeader(mContentDispositionHeader, this);
helperAppService->DoContent(aMimeContentType, this, nsnull,
aForceSave, getter_AddRefs(mListener));
}
bool
ExternalHelperAppParent::RecvOnStartRequest(const nsCString& entityID)
{
mEntityID = entityID;
mPending = true;
mStatus = mListener->OnStartRequest(this, nsnull);
return true;
}
bool
ExternalHelperAppParent::RecvOnDataAvailable(const nsCString& data,
const PRUint32& offset,
const PRUint32& count)
{
if (NS_FAILED(mStatus))
return true;
NS_ASSERTION(mPending, "must be pending!");
nsCOMPtr<nsIInputStream> stringStream;
DebugOnly<nsresult> rv = NS_NewByteInputStream(getter_AddRefs(stringStream), data.get(), count, NS_ASSIGNMENT_DEPEND);
NS_ASSERTION(NS_SUCCEEDED(rv), "failed to create dependent string!");
mStatus = mListener->OnDataAvailable(this, nsnull, stringStream, offset, count);
return true;
}
bool
ExternalHelperAppParent::RecvOnStopRequest(const nsresult& code)
{
mPending = false;
mListener->OnStopRequest(this, nsnull,
(NS_SUCCEEDED(code) && NS_FAILED(mStatus)) ? mStatus : code);
unused << Send__delete__(this);
return true;
}
ExternalHelperAppParent::~ExternalHelperAppParent()
{
}
//
// nsIRequest implementation...
//
NS_IMETHODIMP
ExternalHelperAppParent::GetName(nsACString& aResult)
{
mURI->GetAsciiSpec(aResult);
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::IsPending(bool *aResult)
{
*aResult = mPending;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetStatus(nsresult *aResult)
{
*aResult = mStatus;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::Cancel(nsresult aStatus)
{
mStatus = aStatus;
unused << SendCancel(aStatus);
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::Suspend()
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::Resume()
{
return NS_ERROR_NOT_IMPLEMENTED;
}
//
// nsIChannel implementation
//
NS_IMETHODIMP
ExternalHelperAppParent::GetOriginalURI(nsIURI * *aURI)
{
NS_IF_ADDREF(*aURI = mURI);
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::SetOriginalURI(nsIURI *aURI)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetURI(nsIURI **aURI)
{
NS_IF_ADDREF(*aURI = mURI);
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::Open(nsIInputStream **aResult)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::AsyncOpen(nsIStreamListener *aListener,
nsISupports *aContext)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetLoadFlags(nsLoadFlags *aLoadFlags)
{
*aLoadFlags = mLoadFlags;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::SetLoadFlags(nsLoadFlags aLoadFlags)
{
mLoadFlags = aLoadFlags;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetLoadGroup(nsILoadGroup* *aLoadGroup)
{
*aLoadGroup = nsnull;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::SetLoadGroup(nsILoadGroup* aLoadGroup)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetOwner(nsISupports* *aOwner)
{
*aOwner = nsnull;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::SetOwner(nsISupports* aOwner)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetNotificationCallbacks(nsIInterfaceRequestor* *aCallbacks)
{
*aCallbacks = nsnull;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::SetNotificationCallbacks(nsIInterfaceRequestor* aCallbacks)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetSecurityInfo(nsISupports * *aSecurityInfo)
{
*aSecurityInfo = nsnull;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetContentType(nsACString& aContentType)
{
aContentType.Truncate();
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::SetContentType(const nsACString& aContentType)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetContentCharset(nsACString& aContentCharset)
{
aContentCharset.Truncate();
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::SetContentCharset(const nsACString& aContentCharset)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetContentDisposition(PRUint32 *aContentDisposition)
{
if (mContentDispositionHeader.IsEmpty())
return NS_ERROR_NOT_AVAILABLE;
*aContentDisposition = mContentDisposition;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetContentDispositionFilename(nsAString& aContentDispositionFilename)
{
if (mContentDispositionFilename.IsEmpty())
return NS_ERROR_NOT_AVAILABLE;
aContentDispositionFilename = mContentDispositionFilename;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetContentDispositionHeader(nsACString& aContentDispositionHeader)
{
if (mContentDispositionHeader.IsEmpty())
return NS_ERROR_NOT_AVAILABLE;
aContentDispositionHeader = mContentDispositionHeader;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetContentLength(PRInt32 *aContentLength)
{
if (mContentLength > PR_INT32_MAX || mContentLength < 0)
*aContentLength = -1;
else
*aContentLength = (PRInt32)mContentLength;
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppParent::SetContentLength(PRInt32 aContentLength)
{
mContentLength = aContentLength;
return NS_OK;
}
//
// nsIResumableChannel implementation
//
NS_IMETHODIMP
ExternalHelperAppParent::ResumeAt(PRUint64 startPos, const nsACString& entityID)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetEntityID(nsACString& aEntityID)
{
aEntityID = mEntityID;
return NS_OK;
}
//
// nsIMultiPartChannel implementation
//
NS_IMETHODIMP
ExternalHelperAppParent::GetBaseChannel(nsIChannel* *aChannel)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetPartID(PRUint32* aPartID)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ExternalHelperAppParent::GetIsLastPart(bool* aIsLastPart)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
} // namespace dom
} // namespace mozilla