mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
597 lines
16 KiB
C++
597 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set sw=2 ts=8 et tw=80 : */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/net/FTPChannelParent.h"
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#include "nsFTPChannel.h"
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#include "nsNetUtil.h"
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#include "nsFtpProtocolHandler.h"
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#include "mozilla/ipc/InputStreamUtils.h"
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#include "mozilla/ipc/URIUtils.h"
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#include "mozilla/unused.h"
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#include "SerializedLoadContext.h"
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using namespace mozilla::ipc;
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#undef LOG
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#define LOG(args) PR_LOG(gFTPLog, PR_LOG_DEBUG, args)
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namespace mozilla {
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namespace net {
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FTPChannelParent::FTPChannelParent(nsILoadContext* aLoadContext, PBOverrideStatus aOverrideStatus)
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: mIPCClosed(false)
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, mLoadContext(aLoadContext)
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, mPBOverride(aOverrideStatus)
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, mStatus(NS_OK)
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, mDivertingFromChild(false)
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, mDivertedOnStartRequest(false)
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, mSuspendedForDiversion(false)
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{
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nsIProtocolHandler* handler;
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CallGetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "ftp", &handler);
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NS_ASSERTION(handler, "no ftp handler");
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}
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FTPChannelParent::~FTPChannelParent()
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{
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gFtpHandler->Release();
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}
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void
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FTPChannelParent::ActorDestroy(ActorDestroyReason why)
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{
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// We may still have refcount>0 if the channel hasn't called OnStopRequest
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// yet, but we must not send any more msgs to child.
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mIPCClosed = true;
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}
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//-----------------------------------------------------------------------------
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// FTPChannelParent::nsISupports
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//-----------------------------------------------------------------------------
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NS_IMPL_ISUPPORTS4(FTPChannelParent,
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nsIStreamListener,
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nsIParentChannel,
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nsIInterfaceRequestor,
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nsIRequestObserver)
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//-----------------------------------------------------------------------------
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// FTPChannelParent::PFTPChannelParent
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// FTPChannelParent methods
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//-----------------------------------------------------------------------------
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bool
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FTPChannelParent::Init(const FTPChannelCreationArgs& aArgs)
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{
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switch (aArgs.type()) {
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case FTPChannelCreationArgs::TFTPChannelOpenArgs:
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{
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const FTPChannelOpenArgs& a = aArgs.get_FTPChannelOpenArgs();
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return DoAsyncOpen(a.uri(), a.startPos(), a.entityID(), a.uploadStream());
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}
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case FTPChannelCreationArgs::TFTPChannelConnectArgs:
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{
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const FTPChannelConnectArgs& cArgs = aArgs.get_FTPChannelConnectArgs();
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return ConnectChannel(cArgs.channelId());
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}
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default:
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NS_NOTREACHED("unknown open type");
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return false;
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}
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}
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bool
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FTPChannelParent::DoAsyncOpen(const URIParams& aURI,
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const uint64_t& aStartPos,
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const nsCString& aEntityID,
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const OptionalInputStreamParams& aUploadStream)
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{
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nsCOMPtr<nsIURI> uri = DeserializeURI(aURI);
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if (!uri)
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return false;
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#ifdef DEBUG
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nsCString uriSpec;
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uri->GetSpec(uriSpec);
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LOG(("FTPChannelParent DoAsyncOpen [this=%p uri=%s]\n",
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this, uriSpec.get()));
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#endif
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nsresult rv;
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nsCOMPtr<nsIIOService> ios(do_GetIOService(&rv));
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if (NS_FAILED(rv))
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return SendFailedAsyncOpen(rv);
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nsCOMPtr<nsIChannel> chan;
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rv = NS_NewChannel(getter_AddRefs(chan), uri, ios);
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if (NS_FAILED(rv))
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return SendFailedAsyncOpen(rv);
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mChannel = static_cast<nsFtpChannel*>(chan.get());
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if (mPBOverride != kPBOverride_Unset) {
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mChannel->SetPrivate(mPBOverride == kPBOverride_Private ? true : false);
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}
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rv = mChannel->SetNotificationCallbacks(this);
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if (NS_FAILED(rv))
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return SendFailedAsyncOpen(rv);
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nsCOMPtr<nsIInputStream> upload = DeserializeInputStream(aUploadStream);
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if (upload) {
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// contentType and contentLength are ignored
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rv = mChannel->SetUploadStream(upload, EmptyCString(), 0);
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if (NS_FAILED(rv))
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return SendFailedAsyncOpen(rv);
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}
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rv = mChannel->ResumeAt(aStartPos, aEntityID);
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if (NS_FAILED(rv))
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return SendFailedAsyncOpen(rv);
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rv = mChannel->AsyncOpen(this, nullptr);
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if (NS_FAILED(rv))
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return SendFailedAsyncOpen(rv);
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return true;
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}
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bool
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FTPChannelParent::ConnectChannel(const uint32_t& channelId)
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{
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nsresult rv;
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LOG(("Looking for a registered channel [this=%p, id=%d]", this, channelId));
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nsCOMPtr<nsIChannel> channel;
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rv = NS_LinkRedirectChannels(channelId, this, getter_AddRefs(channel));
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if (NS_SUCCEEDED(rv))
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mChannel = static_cast<nsFtpChannel*>(channel.get());
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LOG((" found channel %p, rv=%08x", mChannel.get(), rv));
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return true;
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}
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bool
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FTPChannelParent::RecvCancel(const nsresult& status)
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{
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if (mChannel)
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mChannel->Cancel(status);
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return true;
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}
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bool
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FTPChannelParent::RecvSuspend()
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{
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if (mChannel)
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mChannel->Suspend();
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return true;
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}
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bool
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FTPChannelParent::RecvResume()
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{
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if (mChannel)
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mChannel->Resume();
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return true;
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}
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bool
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FTPChannelParent::RecvDivertOnDataAvailable(const nsCString& data,
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const uint64_t& offset,
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const uint32_t& count)
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{
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if (NS_WARN_IF(!mDivertingFromChild)) {
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MOZ_ASSERT(mDivertingFromChild,
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"Cannot RecvDivertOnDataAvailable if diverting is not set!");
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FailDiversion(NS_ERROR_UNEXPECTED);
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return false;
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}
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// Drop OnDataAvailables if the parent was canceled already.
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if (NS_FAILED(mStatus)) {
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return true;
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}
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nsCOMPtr<nsIInputStream> stringStream;
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nsresult rv = NS_NewByteInputStream(getter_AddRefs(stringStream), data.get(),
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count, NS_ASSIGNMENT_DEPEND);
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if (NS_FAILED(rv)) {
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if (mChannel) {
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mChannel->Cancel(rv);
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}
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mStatus = rv;
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return true;
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}
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rv = OnDataAvailable(mChannel, nullptr, stringStream, offset, count);
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stringStream->Close();
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if (NS_FAILED(rv)) {
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if (mChannel) {
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mChannel->Cancel(rv);
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}
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mStatus = rv;
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}
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return true;
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}
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bool
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FTPChannelParent::RecvDivertOnStopRequest(const nsresult& statusCode)
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{
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if (NS_WARN_IF(!mDivertingFromChild)) {
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MOZ_ASSERT(mDivertingFromChild,
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"Cannot RecvDivertOnStopRequest if diverting is not set!");
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FailDiversion(NS_ERROR_UNEXPECTED);
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return false;
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}
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// Honor the channel's status even if the underlying transaction completed.
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nsresult status = NS_FAILED(mStatus) ? mStatus : statusCode;
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// Reset fake pending status in case OnStopRequest has already been called.
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if (mChannel) {
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mChannel->ForcePending(false);
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}
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OnStopRequest(mChannel, nullptr, status);
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return true;
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}
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bool
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FTPChannelParent::RecvDivertComplete()
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{
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if (NS_WARN_IF(!mDivertingFromChild)) {
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MOZ_ASSERT(mDivertingFromChild,
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"Cannot RecvDivertComplete if diverting is not set!");
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FailDiversion(NS_ERROR_UNEXPECTED);
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return false;
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}
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nsresult rv = ResumeForDiversion();
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if (NS_WARN_IF(NS_FAILED(rv))) {
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FailDiversion(NS_ERROR_UNEXPECTED);
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return false;
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}
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return true;
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}
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//-----------------------------------------------------------------------------
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// FTPChannelParent::nsIRequestObserver
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//-----------------------------------------------------------------------------
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NS_IMETHODIMP
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FTPChannelParent::OnStartRequest(nsIRequest* aRequest, nsISupports* aContext)
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{
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LOG(("FTPChannelParent::OnStartRequest [this=%p]\n", this));
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if (mDivertingFromChild) {
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MOZ_RELEASE_ASSERT(mDivertToListener,
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"Cannot divert if listener is unset!");
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return mDivertToListener->OnStartRequest(aRequest, aContext);
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}
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nsCOMPtr<nsIChannel> chan = do_QueryInterface(aRequest);
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MOZ_ASSERT(chan);
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NS_ENSURE_TRUE(chan, NS_ERROR_UNEXPECTED);
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int64_t contentLength;
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chan->GetContentLength(&contentLength);
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nsCString contentType;
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chan->GetContentType(contentType);
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nsCString entityID;
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nsCOMPtr<nsIResumableChannel> resChan = do_QueryInterface(aRequest);
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MOZ_ASSERT(resChan); // both FTP and HTTP should implement nsIResumableChannel
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if (resChan) {
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resChan->GetEntityID(entityID);
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}
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nsCOMPtr<nsIFTPChannel> ftpChan = do_QueryInterface(aRequest);
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PRTime lastModified = 0;
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if (ftpChan) {
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ftpChan->GetLastModifiedTime(&lastModified);
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} else {
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// Temporary hack: if we were redirected to use an HTTP channel (ie FTP is
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// using an HTTP proxy), cancel, as we don't support those redirects yet.
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aRequest->Cancel(NS_ERROR_NOT_IMPLEMENTED);
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}
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URIParams uriparam;
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nsCOMPtr<nsIURI> uri;
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chan->GetURI(getter_AddRefs(uri));
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SerializeURI(uri, uriparam);
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if (mIPCClosed || !SendOnStartRequest(contentLength, contentType,
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lastModified, entityID, uriparam)) {
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return NS_ERROR_UNEXPECTED;
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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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FTPChannelParent::OnStopRequest(nsIRequest* aRequest,
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nsISupports* aContext,
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nsresult aStatusCode)
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{
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LOG(("FTPChannelParent::OnStopRequest: [this=%p status=%ul]\n",
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this, aStatusCode));
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if (mDivertingFromChild) {
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MOZ_RELEASE_ASSERT(mDivertToListener,
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"Cannot divert if listener is unset!");
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return mDivertToListener->OnStopRequest(aRequest, aContext, aStatusCode);
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}
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if (mIPCClosed || !SendOnStopRequest(aStatusCode)) {
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return NS_ERROR_UNEXPECTED;
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}
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return NS_OK;
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}
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//-----------------------------------------------------------------------------
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// FTPChannelParent::nsIStreamListener
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//-----------------------------------------------------------------------------
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NS_IMETHODIMP
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FTPChannelParent::OnDataAvailable(nsIRequest* aRequest,
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nsISupports* aContext,
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nsIInputStream* aInputStream,
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uint64_t aOffset,
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uint32_t aCount)
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{
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LOG(("FTPChannelParent::OnDataAvailable [this=%p]\n", this));
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if (mDivertingFromChild) {
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MOZ_RELEASE_ASSERT(mDivertToListener,
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"Cannot divert if listener is unset!");
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return mDivertToListener->OnDataAvailable(aRequest, aContext, aInputStream,
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aOffset, aCount);
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}
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nsCString data;
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nsresult rv = NS_ReadInputStreamToString(aInputStream, data, aCount);
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if (NS_FAILED(rv))
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return rv;
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if (mIPCClosed || !SendOnDataAvailable(data, aOffset, aCount))
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return NS_ERROR_UNEXPECTED;
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return NS_OK;
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}
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//-----------------------------------------------------------------------------
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// FTPChannelParent::nsIParentChannel
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//-----------------------------------------------------------------------------
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NS_IMETHODIMP
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FTPChannelParent::Delete()
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{
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if (mIPCClosed || !SendDeleteSelf())
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return NS_ERROR_UNEXPECTED;
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return NS_OK;
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}
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//-----------------------------------------------------------------------------
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// FTPChannelParent::nsIInterfaceRequestor
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//-----------------------------------------------------------------------------
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NS_IMETHODIMP
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FTPChannelParent::GetInterface(const nsIID& uuid, void** result)
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{
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// Only support nsILoadContext if child channel's callbacks did too
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if (uuid.Equals(NS_GET_IID(nsILoadContext)) && mLoadContext) {
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NS_ADDREF(mLoadContext);
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*result = static_cast<nsILoadContext*>(mLoadContext);
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return NS_OK;
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}
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return QueryInterface(uuid, result);
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}
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//-----------------------------------------------------------------------------
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// FTPChannelParent::ADivertableParentChannel
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//-----------------------------------------------------------------------------
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nsresult
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FTPChannelParent::SuspendForDiversion()
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{
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MOZ_ASSERT(mChannel);
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if (NS_WARN_IF(mDivertingFromChild)) {
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MOZ_ASSERT(!mDivertingFromChild, "Already suspended for diversion!");
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return NS_ERROR_UNEXPECTED;
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}
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// Try suspending the channel. Allow it to fail, since OnStopRequest may have
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// been called and thus the channel may not be pending.
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nsresult rv = mChannel->Suspend();
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MOZ_ASSERT(NS_SUCCEEDED(rv) || rv == NS_ERROR_NOT_AVAILABLE);
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mSuspendedForDiversion = NS_SUCCEEDED(rv);
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// Once this is set, no more OnStart/OnData/OnStop callbacks should be sent
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// to the child.
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mDivertingFromChild = true;
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return NS_OK;
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}
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/* private, supporting function for ADivertableParentChannel */
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nsresult
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FTPChannelParent::ResumeForDiversion()
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{
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MOZ_ASSERT(mChannel);
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MOZ_ASSERT(mDivertToListener);
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if (NS_WARN_IF(!mDivertingFromChild)) {
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MOZ_ASSERT(mDivertingFromChild,
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"Cannot ResumeForDiversion if not diverting!");
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return NS_ERROR_UNEXPECTED;
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}
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if (mSuspendedForDiversion) {
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nsresult rv = mChannel->Resume();
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if (NS_WARN_IF(NS_FAILED(rv))) {
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FailDiversion(NS_ERROR_UNEXPECTED, true);
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return rv;
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}
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mSuspendedForDiversion = false;
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}
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// Delete() will tear down IPDL, but ref from underlying nsFTPChannel will
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// keep us alive if there's more data to be delivered to listener.
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if (NS_WARN_IF(NS_FAILED(Delete()))) {
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FailDiversion(NS_ERROR_UNEXPECTED);
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return NS_ERROR_UNEXPECTED;
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}
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return NS_OK;
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}
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void
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FTPChannelParent::DivertTo(nsIStreamListener *aListener)
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{
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MOZ_ASSERT(aListener);
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if (NS_WARN_IF(!mDivertingFromChild)) {
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MOZ_ASSERT(mDivertingFromChild,
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"Cannot DivertTo new listener if diverting is not set!");
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return;
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}
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if (NS_WARN_IF(mIPCClosed || !SendFlushedForDiversion())) {
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FailDiversion(NS_ERROR_UNEXPECTED);
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return;
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}
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mDivertToListener = aListener;
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// Call OnStartRequest and SendDivertMessages asynchronously to avoid
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// reentering client context.
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NS_DispatchToCurrentThread(
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NS_NewRunnableMethod(this, &FTPChannelParent::StartDiversion));
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return;
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}
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void
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FTPChannelParent::StartDiversion()
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{
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if (NS_WARN_IF(!mDivertingFromChild)) {
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MOZ_ASSERT(mDivertingFromChild,
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"Cannot StartDiversion if diverting is not set!");
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return;
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}
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// Fake pending status in case OnStopRequest has already been called.
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if (mChannel) {
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mChannel->ForcePending(true);
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}
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// Call OnStartRequest for the "DivertTo" listener.
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nsresult rv = OnStartRequest(mChannel, nullptr);
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if (NS_FAILED(rv)) {
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if (mChannel) {
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mChannel->Cancel(rv);
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}
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mStatus = rv;
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return;
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}
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// After OnStartRequest has been called, tell FTPChannelChild to divert the
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// OnDataAvailables and OnStopRequest to this FTPChannelParent.
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if (NS_WARN_IF(mIPCClosed || !SendDivertMessages())) {
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FailDiversion(NS_ERROR_UNEXPECTED);
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return;
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}
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}
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class FTPFailDiversionEvent : public nsRunnable
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{
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public:
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FTPFailDiversionEvent(FTPChannelParent *aChannelParent,
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nsresult aErrorCode,
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bool aSkipResume)
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: mChannelParent(aChannelParent)
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, mErrorCode(aErrorCode)
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, mSkipResume(aSkipResume)
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{
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MOZ_RELEASE_ASSERT(aChannelParent);
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MOZ_RELEASE_ASSERT(NS_FAILED(aErrorCode));
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}
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NS_IMETHOD Run()
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{
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mChannelParent->NotifyDiversionFailed(mErrorCode, mSkipResume);
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return NS_OK;
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}
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private:
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nsRefPtr<FTPChannelParent> mChannelParent;
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nsresult mErrorCode;
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bool mSkipResume;
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};
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void
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FTPChannelParent::FailDiversion(nsresult aErrorCode,
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bool aSkipResume)
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{
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MOZ_RELEASE_ASSERT(NS_FAILED(aErrorCode));
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MOZ_RELEASE_ASSERT(mDivertingFromChild);
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MOZ_RELEASE_ASSERT(mDivertToListener);
|
|
MOZ_RELEASE_ASSERT(mChannel);
|
|
|
|
NS_DispatchToCurrentThread(
|
|
new FTPFailDiversionEvent(this, aErrorCode, aSkipResume));
|
|
}
|
|
|
|
void
|
|
FTPChannelParent::NotifyDiversionFailed(nsresult aErrorCode,
|
|
bool aSkipResume)
|
|
{
|
|
MOZ_RELEASE_ASSERT(NS_FAILED(aErrorCode));
|
|
MOZ_RELEASE_ASSERT(mDivertingFromChild);
|
|
MOZ_RELEASE_ASSERT(mDivertToListener);
|
|
MOZ_RELEASE_ASSERT(mChannel);
|
|
|
|
mChannel->Cancel(aErrorCode);
|
|
|
|
mChannel->ForcePending(false);
|
|
|
|
bool isPending = false;
|
|
nsresult rv = mChannel->IsPending(&isPending);
|
|
MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
|
|
|
|
// Resume only we suspended earlier.
|
|
if (mSuspendedForDiversion) {
|
|
mChannel->Resume();
|
|
}
|
|
// Channel has already sent OnStartRequest to the child, so ensure that we
|
|
// call it here if it hasn't already been called.
|
|
if (!mDivertedOnStartRequest) {
|
|
mChannel->ForcePending(true);
|
|
mDivertToListener->OnStartRequest(mChannel, nullptr);
|
|
mChannel->ForcePending(false);
|
|
}
|
|
// If the channel is pending, it will call OnStopRequest itself; otherwise, do
|
|
// it here.
|
|
if (!isPending) {
|
|
mDivertToListener->OnStopRequest(mChannel, nullptr, aErrorCode);
|
|
}
|
|
mDivertToListener = nullptr;
|
|
mChannel = nullptr;
|
|
|
|
if (!mIPCClosed) {
|
|
unused << SendDeleteSelf();
|
|
}
|
|
}
|
|
|
|
//---------------------
|
|
} // namespace net
|
|
} // namespace mozilla
|
|
|