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gecko/netwerk/protocol/wyciwyg/WyciwygChannelChild.cpp

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/* ***** 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 mozilla.org code.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Michal Novotny <michal.novotny@gmail.com>
*
* 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 "nsWyciwyg.h"
#include "mozilla/net/NeckoChild.h"
#include "WyciwygChannelChild.h"
#include "nsIParser.h"
#include "nsStringStream.h"
#include "nsMimeTypes.h"
#include "nsNetUtil.h"
#include "nsISerializable.h"
#include "nsSerializationHelper.h"
namespace mozilla {
namespace net {
NS_IMPL_ISUPPORTS3(WyciwygChannelChild,
nsIRequest,
nsIChannel,
nsIWyciwygChannel);
WyciwygChannelChild::WyciwygChannelChild()
: mStatus(NS_OK)
, mIsPending(PR_FALSE)
, mCanceled(false)
, mLoadFlags(LOAD_NORMAL)
, mContentLength(-1)
, mCharsetSource(kCharsetUninitialized)
, mState(WCC_NEW)
, mIPCOpen(false)
, mEventQ(this)
{
LOG(("Creating WyciwygChannelChild @%x\n", this));
}
WyciwygChannelChild::~WyciwygChannelChild()
{
LOG(("Destroying WyciwygChannelChild @%x\n", this));
}
void
WyciwygChannelChild::AddIPDLReference()
{
NS_ABORT_IF_FALSE(!mIPCOpen, "Attempt to retain more than one IPDL reference");
mIPCOpen = true;
AddRef();
}
void
WyciwygChannelChild::ReleaseIPDLReference()
{
NS_ABORT_IF_FALSE(mIPCOpen, "Attempt to release nonexistent IPDL reference");
mIPCOpen = false;
Release();
}
nsresult
WyciwygChannelChild::Init(nsIURI* uri)
{
NS_ENSURE_ARG_POINTER(uri);
mState = WCC_INIT;
mURI = uri;
mOriginalURI = uri;
SendInit(IPC::URI(mURI));
return NS_OK;
}
//-----------------------------------------------------------------------------
// WyciwygChannelChild::PWyciwygChannelChild
//-----------------------------------------------------------------------------
class WyciwygStartRequestEvent : public ChannelEvent
{
public:
WyciwygStartRequestEvent(WyciwygChannelChild* child,
const nsresult& statusCode,
const PRInt32& contentLength,
const PRInt32& source,
const nsCString& charset,
const nsCString& securityInfo)
: mChild(child), mStatusCode(statusCode), mContentLength(contentLength),
mSource(source), mCharset(charset), mSecurityInfo(securityInfo) {}
void Run() { mChild->OnStartRequest(mStatusCode, mContentLength, mSource,
mCharset, mSecurityInfo); }
private:
WyciwygChannelChild* mChild;
nsresult mStatusCode;
PRInt32 mContentLength;
PRInt32 mSource;
nsCString mCharset;
nsCString mSecurityInfo;
};
bool
WyciwygChannelChild::RecvOnStartRequest(const nsresult& statusCode,
const PRInt32& contentLength,
const PRInt32& source,
const nsCString& charset,
const nsCString& securityInfo)
{
if (mEventQ.ShouldEnqueue()) {
mEventQ.Enqueue(new WyciwygStartRequestEvent(this, statusCode,
contentLength, source,
charset, securityInfo));
} else {
OnStartRequest(statusCode, contentLength, source, charset, securityInfo);
}
return true;
}
void
WyciwygChannelChild::OnStartRequest(const nsresult& statusCode,
const PRInt32& contentLength,
const PRInt32& source,
const nsCString& charset,
const nsCString& securityInfo)
{
LOG(("WyciwygChannelChild::RecvOnStartRequest [this=%x]\n", this));
mState = WCC_ONSTART;
mStatus = statusCode;
mContentLength = contentLength;
mCharsetSource = source;
mCharset = charset;
if (!securityInfo.IsEmpty()) {
NS_DeserializeObject(securityInfo, getter_AddRefs(mSecurityInfo));
}
AutoEventEnqueuer ensureSerialDispatch(mEventQ);
nsresult rv = mListener->OnStartRequest(this, mListenerContext);
if (NS_FAILED(rv))
Cancel(rv);
}
class WyciwygDataAvailableEvent : public ChannelEvent
{
public:
WyciwygDataAvailableEvent(WyciwygChannelChild* child,
const nsCString& data,
const PRUint32& offset)
: mChild(child), mData(data), mOffset(offset) {}
void Run() { mChild->OnDataAvailable(mData, mOffset); }
private:
WyciwygChannelChild* mChild;
nsCString mData;
PRUint32 mOffset;
};
bool
WyciwygChannelChild::RecvOnDataAvailable(const nsCString& data,
const PRUint32& offset)
{
if (mEventQ.ShouldEnqueue()) {
mEventQ.Enqueue(new WyciwygDataAvailableEvent(this, data, offset));
} else {
OnDataAvailable(data, offset);
}
return true;
}
void
WyciwygChannelChild::OnDataAvailable(const nsCString& data,
const PRUint32& offset)
{
LOG(("WyciwygChannelChild::RecvOnDataAvailable [this=%x]\n", this));
if (mCanceled)
return;
mState = WCC_ONDATA;
// NOTE: the OnDataAvailable contract requires the client to read all the data
// in the inputstream. This code relies on that ('data' will go away after
// this function). Apparently the previous, non-e10s behavior was to actually
// support only reading part of the data, allowing later calls to read the
// rest.
nsCOMPtr<nsIInputStream> stringStream;
nsresult rv = NS_NewByteInputStream(getter_AddRefs(stringStream),
data.get(),
data.Length(),
NS_ASSIGNMENT_DEPEND);
if (NS_FAILED(rv)) {
Cancel(rv);
return;
}
AutoEventEnqueuer ensureSerialDispatch(mEventQ);
rv = mListener->OnDataAvailable(this, mListenerContext,
stringStream, offset, data.Length());
if (NS_FAILED(rv))
Cancel(rv);
if (mProgressSink && NS_SUCCEEDED(rv) && !(mLoadFlags & LOAD_BACKGROUND))
mProgressSink->OnProgress(this, nsnull, PRUint64(offset + data.Length()),
PRUint64(mContentLength));
}
class WyciwygStopRequestEvent : public ChannelEvent
{
public:
WyciwygStopRequestEvent(WyciwygChannelChild* child,
const nsresult& statusCode)
: mChild(child), mStatusCode(statusCode) {}
void Run() { mChild->OnStopRequest(mStatusCode); }
private:
WyciwygChannelChild* mChild;
nsresult mStatusCode;
};
bool
WyciwygChannelChild::RecvOnStopRequest(const nsresult& statusCode)
{
if (mEventQ.ShouldEnqueue()) {
mEventQ.Enqueue(new WyciwygStopRequestEvent(this, statusCode));
} else {
OnStopRequest(statusCode);
}
return true;
}
void
WyciwygChannelChild::OnStopRequest(const nsresult& statusCode)
{
LOG(("WyciwygChannelChild::RecvOnStopRequest [this=%x status=%u]\n",
this, statusCode));
{ // We need to ensure that all IPDL message dispatching occurs
// before we delete the protocol below
AutoEventEnqueuer ensureSerialDispatch(mEventQ);
mState = WCC_ONSTOP;
mIsPending = PR_FALSE;
if (!mCanceled)
mStatus = statusCode;
mListener->OnStopRequest(this, mListenerContext, statusCode);
mListener = 0;
mListenerContext = 0;
if (mLoadGroup)
mLoadGroup->RemoveRequest(this, nsnull, mStatus);
mCallbacks = 0;
mProgressSink = 0;
}
if (mIPCOpen)
PWyciwygChannelChild::Send__delete__(this);
}
class WyciwygCancelEvent : public ChannelEvent
{
public:
WyciwygCancelEvent(WyciwygChannelChild* child, const nsresult& status)
: mChild(child)
, mStatus(status) {}
void Run() { mChild->CancelEarly(mStatus); }
private:
WyciwygChannelChild* mChild;
nsresult mStatus;
};
bool
WyciwygChannelChild::RecvCancelEarly(const nsresult& statusCode)
{
if (mEventQ.ShouldEnqueue()) {
mEventQ.Enqueue(new WyciwygCancelEvent(this, statusCode));
} else {
CancelEarly(statusCode);
}
return true;
}
void WyciwygChannelChild::CancelEarly(const nsresult& statusCode)
{
LOG(("WyciwygChannelChild::CancelEarly [this=%x]\n", this));
if (mCanceled)
return;
mCanceled = true;
mStatus = statusCode;
mIsPending = false;
if (mLoadGroup)
mLoadGroup->RemoveRequest(this, nsnull, mStatus);
if (mListener) {
mListener->OnStartRequest(this, mListenerContext);
mListener->OnStopRequest(this, mListenerContext, mStatus);
}
mListener = nsnull;
mListenerContext = nsnull;
if (mIPCOpen)
PWyciwygChannelChild::Send__delete__(this);
}
//-----------------------------------------------------------------------------
// nsIRequest
//-----------------------------------------------------------------------------
/* readonly attribute AUTF8String name; */
NS_IMETHODIMP
WyciwygChannelChild::GetName(nsACString & aName)
{
return mURI->GetSpec(aName);
}
/* boolean isPending (); */
NS_IMETHODIMP
WyciwygChannelChild::IsPending(PRBool *aIsPending)
{
*aIsPending = mIsPending;
return NS_OK;
}
/* readonly attribute nsresult status; */
NS_IMETHODIMP
WyciwygChannelChild::GetStatus(nsresult *aStatus)
{
*aStatus = mStatus;
return NS_OK;
}
/* void cancel (in nsresult aStatus); */
NS_IMETHODIMP
WyciwygChannelChild::Cancel(nsresult aStatus)
{
if (mCanceled)
return NS_OK;
mCanceled = true;
mStatus = aStatus;
if (mIPCOpen)
SendCancel(aStatus);
return NS_OK;
}
/* void suspend (); */
NS_IMETHODIMP
WyciwygChannelChild::Suspend()
{
return NS_ERROR_NOT_IMPLEMENTED;
}
/* void resume (); */
NS_IMETHODIMP
WyciwygChannelChild::Resume()
{
return NS_ERROR_NOT_IMPLEMENTED;
}
/* attribute nsILoadGroup loadGroup; */
NS_IMETHODIMP
WyciwygChannelChild::GetLoadGroup(nsILoadGroup * *aLoadGroup)
{
*aLoadGroup = mLoadGroup;
NS_IF_ADDREF(*aLoadGroup);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetLoadGroup(nsILoadGroup * aLoadGroup)
{
mLoadGroup = aLoadGroup;
NS_QueryNotificationCallbacks(mCallbacks,
mLoadGroup,
NS_GET_IID(nsIProgressEventSink),
getter_AddRefs(mProgressSink));
return NS_OK;
}
/* attribute nsLoadFlags loadFlags; */
NS_IMETHODIMP
WyciwygChannelChild::GetLoadFlags(nsLoadFlags *aLoadFlags)
{
*aLoadFlags = mLoadFlags;
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetLoadFlags(nsLoadFlags aLoadFlags)
{
mLoadFlags = aLoadFlags;
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsIChannel
//-----------------------------------------------------------------------------
/* attribute nsIURI originalURI; */
NS_IMETHODIMP
WyciwygChannelChild::GetOriginalURI(nsIURI * *aOriginalURI)
{
*aOriginalURI = mOriginalURI;
NS_ADDREF(*aOriginalURI);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetOriginalURI(nsIURI * aOriginalURI)
{
NS_ENSURE_TRUE(mState == WCC_INIT, NS_ERROR_UNEXPECTED);
NS_ENSURE_ARG_POINTER(aOriginalURI);
mOriginalURI = aOriginalURI;
return NS_OK;
}
/* readonly attribute nsIURI URI; */
NS_IMETHODIMP
WyciwygChannelChild::GetURI(nsIURI * *aURI)
{
*aURI = mURI;
NS_IF_ADDREF(*aURI);
return NS_OK;
}
/* attribute nsISupports owner; */
NS_IMETHODIMP
WyciwygChannelChild::GetOwner(nsISupports * *aOwner)
{
NS_PRECONDITION(mOwner, "Must have a principal!");
NS_ENSURE_STATE(mOwner);
NS_ADDREF(*aOwner = mOwner);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetOwner(nsISupports * aOwner)
{
mOwner = aOwner;
return NS_OK;
}
/* attribute nsIInterfaceRequestor notificationCallbacks; */
NS_IMETHODIMP
WyciwygChannelChild::GetNotificationCallbacks(nsIInterfaceRequestor * *aCallbacks)
{
*aCallbacks = mCallbacks;
NS_IF_ADDREF(*aCallbacks);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetNotificationCallbacks(nsIInterfaceRequestor * aCallbacks)
{
mCallbacks = aCallbacks;
NS_QueryNotificationCallbacks(mCallbacks,
mLoadGroup,
NS_GET_IID(nsIProgressEventSink),
getter_AddRefs(mProgressSink));
return NS_OK;
}
/* readonly attribute nsISupports securityInfo; */
NS_IMETHODIMP
WyciwygChannelChild::GetSecurityInfo(nsISupports * *aSecurityInfo)
{
NS_IF_ADDREF(*aSecurityInfo = mSecurityInfo);
return NS_OK;
}
/* attribute ACString contentType; */
NS_IMETHODIMP
WyciwygChannelChild::GetContentType(nsACString & aContentType)
{
aContentType.AssignLiteral(WYCIWYG_TYPE);
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetContentType(const nsACString & aContentType)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
/* attribute ACString contentCharset; */
NS_IMETHODIMP
WyciwygChannelChild::GetContentCharset(nsACString & aContentCharset)
{
aContentCharset.Assign("UTF-16");
return NS_OK;
}
NS_IMETHODIMP
WyciwygChannelChild::SetContentCharset(const nsACString & aContentCharset)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
/* attribute long contentLength; */
NS_IMETHODIMP
WyciwygChannelChild::GetContentLength(PRInt32 *aContentLength)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
WyciwygChannelChild::SetContentLength(PRInt32 aContentLength)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
/* nsIInputStream open (); */
NS_IMETHODIMP
WyciwygChannelChild::Open(nsIInputStream **_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
/* void asyncOpen (in nsIStreamListener aListener, in nsISupports aContext); */
NS_IMETHODIMP
WyciwygChannelChild::AsyncOpen(nsIStreamListener *aListener, nsISupports *aContext)
{
LOG(("WyciwygChannelChild::AsyncOpen [this=%x]\n", this));
// The only places creating wyciwyg: channels should be
// HTMLDocument::OpenCommon and session history. Both should be setting an
// owner.
NS_PRECONDITION(mOwner, "Must have a principal");
NS_ENSURE_STATE(mOwner);
NS_ENSURE_ARG_POINTER(aListener);
NS_ENSURE_TRUE(!mIsPending, NS_ERROR_IN_PROGRESS);
mListener = aListener;
mListenerContext = aContext;
mIsPending = PR_TRUE;
if (mLoadGroup)
mLoadGroup->AddRequest(this, nsnull);
SendAsyncOpen(IPC::URI(mOriginalURI), mLoadFlags);
mState = WCC_OPENED;
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsIWyciwygChannel
//-----------------------------------------------------------------------------
/* void writeToCacheEntry (in AString aData); */
NS_IMETHODIMP
WyciwygChannelChild::WriteToCacheEntry(const nsAString & aData)
{
NS_ENSURE_TRUE((mState == WCC_INIT) ||
(mState == WCC_ONWRITE), NS_ERROR_UNEXPECTED);
SendWriteToCacheEntry(PromiseFlatString(aData));
mState = WCC_ONWRITE;
return NS_OK;
}
/* void closeCacheEntry (in nsresult reason); */
NS_IMETHODIMP
WyciwygChannelChild::CloseCacheEntry(nsresult reason)
{
NS_ENSURE_TRUE(mState == WCC_ONWRITE, NS_ERROR_UNEXPECTED);
SendCloseCacheEntry(reason);
mState = WCC_ONCLOSED;
if (mIPCOpen)
PWyciwygChannelChild::Send__delete__(this);
return NS_OK;
}
/* void setSecurityInfo (in nsISupports aSecurityInfo); */
NS_IMETHODIMP
WyciwygChannelChild::SetSecurityInfo(nsISupports *aSecurityInfo)
{
mSecurityInfo = aSecurityInfo;
if (mSecurityInfo) {
nsCOMPtr<nsISerializable> serializable = do_QueryInterface(mSecurityInfo);
if (serializable) {
nsCString secInfoStr;
NS_SerializeToString(serializable, secInfoStr);
SendSetSecurityInfo(secInfoStr);
}
else {
NS_WARNING("Can't serialize security info");
}
}
return NS_OK;
}
/* void setCharsetAndSource (in long aSource, in ACString aCharset); */
NS_IMETHODIMP
WyciwygChannelChild::SetCharsetAndSource(PRInt32 aSource, const nsACString & aCharset)
{
// mState == WCC_ONSTART when reading from the channel
// mState == WCC_INIT when writing to the cache
NS_ENSURE_TRUE((mState == WCC_ONSTART) ||
(mState == WCC_INIT), NS_ERROR_UNEXPECTED);
mCharsetSource = aSource;
mCharset = aCharset;
// TODO ensure that nsWyciwygChannel in the parent has still the cache entry
SendSetCharsetAndSource(mCharsetSource, mCharset);
return NS_OK;
}
/* ACString getCharsetAndSource (out long aSource); */
NS_IMETHODIMP
WyciwygChannelChild::GetCharsetAndSource(PRInt32 *aSource NS_OUTPARAM, nsACString & _retval)
{
NS_ENSURE_TRUE((mState == WCC_ONSTART) ||
(mState == WCC_ONDATA) ||
(mState == WCC_ONSTOP), NS_ERROR_NOT_AVAILABLE);
if (mCharsetSource == kCharsetUninitialized)
return NS_ERROR_NOT_AVAILABLE;
*aSource = mCharsetSource;
_retval = mCharset;
return NS_OK;
}
//------------------------------------------------------------------------------
}} // mozilla::net
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