diff options
Diffstat (limited to 'netwerk/protocol/ftp/nsFTPChannel.cpp')
| -rw-r--r-- | netwerk/protocol/ftp/nsFTPChannel.cpp | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/netwerk/protocol/ftp/nsFTPChannel.cpp b/netwerk/protocol/ftp/nsFTPChannel.cpp new file mode 100644 index 0000000000..2a0f049153 --- /dev/null +++ b/netwerk/protocol/ftp/nsFTPChannel.cpp @@ -0,0 +1,294 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* vim:set ts=4 sts=4 sw=4 et cin: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsFTPChannel.h" +#include "nsFtpConnectionThread.h" // defines nsFtpState + +#include "nsThreadUtils.h" +#include "mozilla/Attributes.h" + +using namespace mozilla; +using namespace mozilla::net; +extern LazyLogModule gFTPLog; + +// There are two transport connections established for an +// ftp connection. One is used for the command channel , and +// the other for the data channel. The command channel is the first +// connection made and is used to negotiate the second, data, channel. +// The data channel is driven by the command channel and is either +// initiated by the server (PORT command) or by the client (PASV command). +// Client initiation is the most common case and is attempted first. + +//----------------------------------------------------------------------------- + +NS_IMPL_ISUPPORTS_INHERITED(nsFtpChannel, + nsBaseChannel, + nsIUploadChannel, + nsIResumableChannel, + nsIFTPChannel, + nsIProxiedChannel, + nsIForcePendingChannel, + nsIChannelWithDivertableParentListener) + +//----------------------------------------------------------------------------- + +NS_IMETHODIMP +nsFtpChannel::SetUploadStream(nsIInputStream *stream, + const nsACString &contentType, + int64_t contentLength) +{ + NS_ENSURE_TRUE(!Pending(), NS_ERROR_IN_PROGRESS); + + mUploadStream = stream; + + // NOTE: contentLength is intentionally ignored here. + + return NS_OK; +} + +NS_IMETHODIMP +nsFtpChannel::GetUploadStream(nsIInputStream **stream) +{ + NS_ENSURE_ARG_POINTER(stream); + *stream = mUploadStream; + NS_IF_ADDREF(*stream); + return NS_OK; +} + +//----------------------------------------------------------------------------- + +NS_IMETHODIMP +nsFtpChannel::ResumeAt(uint64_t aStartPos, const nsACString& aEntityID) +{ + NS_ENSURE_TRUE(!Pending(), NS_ERROR_IN_PROGRESS); + mEntityID = aEntityID; + mStartPos = aStartPos; + mResumeRequested = (mStartPos || !mEntityID.IsEmpty()); + return NS_OK; +} + +NS_IMETHODIMP +nsFtpChannel::GetEntityID(nsACString& entityID) +{ + if (mEntityID.IsEmpty()) + return NS_ERROR_NOT_RESUMABLE; + + entityID = mEntityID; + return NS_OK; +} + +//----------------------------------------------------------------------------- +NS_IMETHODIMP +nsFtpChannel::GetProxyInfo(nsIProxyInfo** aProxyInfo) +{ + *aProxyInfo = ProxyInfo(); + NS_IF_ADDREF(*aProxyInfo); + return NS_OK; +} + +//----------------------------------------------------------------------------- + +nsresult +nsFtpChannel::OpenContentStream(bool async, nsIInputStream **result, + nsIChannel** channel) +{ + if (!async) + return NS_ERROR_NOT_IMPLEMENTED; + + nsFtpState *state = new nsFtpState(); + if (!state) + return NS_ERROR_OUT_OF_MEMORY; + NS_ADDREF(state); + + nsresult rv = state->Init(this); + if (NS_FAILED(rv)) { + NS_RELEASE(state); + return rv; + } + + *result = state; + return NS_OK; +} + +bool +nsFtpChannel::GetStatusArg(nsresult status, nsString &statusArg) +{ + nsAutoCString host; + URI()->GetHost(host); + CopyUTF8toUTF16(host, statusArg); + return true; +} + +void +nsFtpChannel::OnCallbacksChanged() +{ + mFTPEventSink = nullptr; +} + +//----------------------------------------------------------------------------- + +namespace { + +class FTPEventSinkProxy final : public nsIFTPEventSink +{ + ~FTPEventSinkProxy() {} + +public: + explicit FTPEventSinkProxy(nsIFTPEventSink* aTarget) + : mTarget(aTarget) + , mTargetThread(do_GetCurrentThread()) + { } + + NS_DECL_THREADSAFE_ISUPPORTS + NS_DECL_NSIFTPEVENTSINK + + class OnFTPControlLogRunnable : public Runnable + { + public: + OnFTPControlLogRunnable(nsIFTPEventSink* aTarget, + bool aServer, + const char* aMessage) + : mTarget(aTarget) + , mServer(aServer) + , mMessage(aMessage) + { } + + NS_DECL_NSIRUNNABLE + + private: + nsCOMPtr<nsIFTPEventSink> mTarget; + bool mServer; + nsCString mMessage; + }; + +private: + nsCOMPtr<nsIFTPEventSink> mTarget; + nsCOMPtr<nsIThread> mTargetThread; +}; + +NS_IMPL_ISUPPORTS(FTPEventSinkProxy, nsIFTPEventSink) + +NS_IMETHODIMP +FTPEventSinkProxy::OnFTPControlLog(bool aServer, const char* aMsg) +{ + RefPtr<OnFTPControlLogRunnable> r = + new OnFTPControlLogRunnable(mTarget, aServer, aMsg); + return mTargetThread->Dispatch(r, NS_DISPATCH_NORMAL); +} + +NS_IMETHODIMP +FTPEventSinkProxy::OnFTPControlLogRunnable::Run() +{ + mTarget->OnFTPControlLog(mServer, mMessage.get()); + return NS_OK; +} + +} // namespace + +void +nsFtpChannel::GetFTPEventSink(nsCOMPtr<nsIFTPEventSink> &aResult) +{ + if (!mFTPEventSink) { + nsCOMPtr<nsIFTPEventSink> ftpSink; + GetCallback(ftpSink); + if (ftpSink) { + mFTPEventSink = new FTPEventSinkProxy(ftpSink); + } + } + aResult = mFTPEventSink; +} + +NS_IMETHODIMP +nsFtpChannel::ForcePending(bool aForcePending) +{ + // Set true here so IsPending will return true. + // Required for callback diversion from child back to parent. In such cases + // OnStopRequest can be called in the parent before callbacks are diverted + // back from the child to the listener in the parent. + mForcePending = aForcePending; + + return NS_OK; +} + +NS_IMETHODIMP +nsFtpChannel::IsPending(bool *result) +{ + *result = Pending(); + return NS_OK; +} + +bool +nsFtpChannel::Pending() const +{ + return nsBaseChannel::Pending() || mForcePending; +} + +NS_IMETHODIMP +nsFtpChannel::Suspend() +{ + LOG(("nsFtpChannel::Suspend [this=%p]\n", this)); + + nsresult rv = nsBaseChannel::Suspend(); + + nsresult rvParentChannel = NS_OK; + if (mParentChannel) { + rvParentChannel = mParentChannel->SuspendMessageDiversion(); + } + + return NS_FAILED(rv) ? rv : rvParentChannel; +} + +NS_IMETHODIMP +nsFtpChannel::Resume() +{ + LOG(("nsFtpChannel::Resume [this=%p]\n", this)); + + nsresult rv = nsBaseChannel::Resume(); + + nsresult rvParentChannel = NS_OK; + if (mParentChannel) { + rvParentChannel = mParentChannel->ResumeMessageDiversion(); + } + + return NS_FAILED(rv) ? rv : rvParentChannel; +} + +//----------------------------------------------------------------------------- +// AChannelHasDivertableParentChannelAsListener internal functions +//----------------------------------------------------------------------------- + +NS_IMETHODIMP +nsFtpChannel::MessageDiversionStarted(ADivertableParentChannel *aParentChannel) +{ + MOZ_ASSERT(!mParentChannel); + mParentChannel = aParentChannel; + return NS_OK; +} + +NS_IMETHODIMP +nsFtpChannel::MessageDiversionStop() +{ + LOG(("nsFtpChannel::MessageDiversionStop [this=%p]", this)); + MOZ_ASSERT(mParentChannel); + mParentChannel = nullptr; + return NS_OK; +} + +NS_IMETHODIMP +nsFtpChannel::SuspendInternal() +{ + LOG(("nsFtpChannel::SuspendInternal [this=%p]\n", this)); + + return nsBaseChannel::Suspend(); +} + +NS_IMETHODIMP +nsFtpChannel::ResumeInternal() +{ + LOG(("nsFtpChannel::ResumeInternal [this=%p]\n", this)); + + return nsBaseChannel::Resume(); +} |