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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=4 sts=2 sw=2 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,
nsISupportsWeakReference)
//-----------------------------------------------------------------------------
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** aStream) {
NS_ENSURE_ARG_POINTER(aStream);
nsCOMPtr<nsIInputStream> stream = mUploadStream;
stream.forget(aStream);
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) {
nsCOMPtr<nsIProxyInfo> info = ProxyInfo();
info.forget(aProxyInfo);
return NS_OK;
}
NS_IMETHODIMP nsFtpChannel::GetHttpProxyConnectResponseCode(
int32_t* aResponseCode) {
return NS_ERROR_NOT_IMPLEMENTED;
}
//-----------------------------------------------------------------------------
nsresult nsFtpChannel::OpenContentStream(bool async, nsIInputStream** result,
nsIChannel** channel) {
if (!async) return NS_ERROR_NOT_IMPLEMENTED;
RefPtr<nsFtpState> state = new nsFtpState();
nsresult rv = state->Init(this);
if (NS_FAILED(rv)) {
return rv;
}
state.forget(result);
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() = default;
public:
explicit FTPEventSinkProxy(nsIFTPEventSink* aTarget)
: mTarget(aTarget), mEventTarget(GetCurrentEventTarget()) {}
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIFTPEVENTSINK
class OnFTPControlLogRunnable : public Runnable {
public:
OnFTPControlLogRunnable(nsIFTPEventSink* aTarget, bool aServer,
const char* aMessage)
: mozilla::Runnable("FTPEventSinkProxy::OnFTPControlLogRunnable"),
mTarget(aTarget),
mServer(aServer),
mMessage(aMessage) {}
NS_DECL_NSIRUNNABLE
private:
nsCOMPtr<nsIFTPEventSink> mTarget;
bool mServer;
nsCString mMessage;
};
private:
nsCOMPtr<nsIFTPEventSink> mTarget;
nsCOMPtr<nsIEventTarget> mEventTarget;
};
NS_IMPL_ISUPPORTS(FTPEventSinkProxy, nsIFTPEventSink)
NS_IMETHODIMP
FTPEventSinkProxy::OnFTPControlLog(bool aServer, const char* aMsg) {
RefPtr<OnFTPControlLogRunnable> r =
new OnFTPControlLogRunnable(mTarget, aServer, aMsg);
return mEventTarget->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));
NS_ENSURE_TRUE(Pending(), NS_ERROR_NOT_AVAILABLE);
++mSuspendCount;
return nsBaseChannel::Suspend();
}
NS_IMETHODIMP
nsFtpChannel::Resume() {
LOG(("nsFtpChannel::Resume [this=%p]\n", this));
NS_ENSURE_TRUE(mSuspendCount > 0, NS_ERROR_UNEXPECTED);
--mSuspendCount;
return nsBaseChannel::Resume();
}
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