234 lines
6.6 KiB
C++
234 lines
6.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
|
|
/*
|
|
* This file is part of the LibreOffice project.
|
|
*
|
|
* 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 "config.h"
|
|
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <iomanip>
|
|
|
|
#include <Poco/DateTime.h>
|
|
#include <Poco/DateTimeFormat.h>
|
|
#include <Poco/DateTimeFormatter.h>
|
|
|
|
#include "SigUtil.hpp"
|
|
#include "Socket.hpp"
|
|
#include "ServerSocket.hpp"
|
|
#include "WebSocketHandler.hpp"
|
|
|
|
int SocketPoll::DefaultPollTimeoutMs = 5000;
|
|
|
|
// help with initialization order
|
|
namespace {
|
|
std::vector<int> &getWakeupsArray()
|
|
{
|
|
static std::vector<int> pollWakeups;
|
|
return pollWakeups;
|
|
}
|
|
std::mutex &getPollWakeupsMutex()
|
|
{
|
|
static std::mutex pollWakeupsMutex;
|
|
return pollWakeupsMutex;
|
|
}
|
|
}
|
|
|
|
SocketPoll::SocketPoll(const std::string& threadName)
|
|
: _name(threadName),
|
|
_stop(false),
|
|
_threadStarted(false),
|
|
_threadFinished(false)
|
|
{
|
|
// Create the wakeup fd.
|
|
if (::pipe2(_wakeup, O_CLOEXEC | O_NONBLOCK) == -1)
|
|
{
|
|
throw std::runtime_error("Failed to allocate pipe for SocketPoll waking.");
|
|
}
|
|
|
|
{
|
|
std::lock_guard<std::mutex> lock(getPollWakeupsMutex());
|
|
getWakeupsArray().push_back(_wakeup[1]);
|
|
}
|
|
|
|
_owner = std::this_thread::get_id();
|
|
}
|
|
|
|
SocketPoll::~SocketPoll()
|
|
{
|
|
stop();
|
|
if (_threadStarted && _thread.joinable())
|
|
{
|
|
if (_thread.get_id() == std::this_thread::get_id())
|
|
LOG_ERR("DEADLOCK PREVENTED: joining own thread!");
|
|
else
|
|
_thread.join();
|
|
}
|
|
|
|
{
|
|
std::lock_guard<std::mutex> lock(getPollWakeupsMutex());
|
|
auto it = std::find(getWakeupsArray().begin(),
|
|
getWakeupsArray().end(),
|
|
_wakeup[1]);
|
|
|
|
if (it != getWakeupsArray().end())
|
|
getWakeupsArray().erase(it);
|
|
}
|
|
|
|
::close(_wakeup[0]);
|
|
::close(_wakeup[1]);
|
|
_wakeup[0] = -1;
|
|
_wakeup[1] = -1;
|
|
}
|
|
|
|
void SocketPoll::startThread()
|
|
{
|
|
if (!_threadStarted)
|
|
{
|
|
_threadStarted = true;
|
|
try
|
|
{
|
|
_thread = std::thread(&SocketPoll::pollingThreadEntry, this);
|
|
_owner = _thread.get_id();
|
|
}
|
|
catch (const std::exception& exc)
|
|
{
|
|
LOG_ERR("Failed to start poll thread: " << exc.what());
|
|
_threadStarted = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SocketPoll::wakeupWorld()
|
|
{
|
|
for (const auto& fd : getWakeupsArray())
|
|
wakeup(fd);
|
|
}
|
|
|
|
void ServerSocket::dumpState(std::ostream& os)
|
|
{
|
|
os << "\t" << getFD() << "\t<accept>\n";
|
|
}
|
|
|
|
namespace {
|
|
|
|
void dump_hex (const char *legend, const char *prefix, std::vector<char> buffer)
|
|
{
|
|
unsigned int i, j;
|
|
fprintf (stderr, "%s", legend);
|
|
for (j = 0; j < buffer.size() + 15; j += 16)
|
|
{
|
|
fprintf (stderr, "%s0x%.4x ", prefix, j);
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
if ((j + i) < buffer.size())
|
|
fprintf (stderr, "%.2x ", (unsigned char)buffer[j+i]);
|
|
else
|
|
fprintf (stderr, " ");
|
|
if (i == 8)
|
|
fprintf (stderr, " ");
|
|
}
|
|
fprintf (stderr, " | ");
|
|
|
|
for (i = 0; i < 16; i++)
|
|
if ((j + i) < buffer.size() && ::isprint(buffer[j+i]))
|
|
fprintf (stderr, "%c", buffer[j+i]);
|
|
else
|
|
fprintf (stderr, ".");
|
|
fprintf (stderr, "\n");
|
|
}
|
|
}
|
|
|
|
} // namespace
|
|
|
|
void WebSocketHandler::dumpState(std::ostream& os)
|
|
{
|
|
os << (_shuttingDown ? "shutd " : "alive ")
|
|
<< std::setw(5) << 1.0*_pingTimeUs/1000 << "ms ";
|
|
if (_wsPayload.size() > 0)
|
|
dump_hex("\t\tws queued payload:\n", "\t\t", _wsPayload);
|
|
}
|
|
|
|
void StreamSocket::dumpState(std::ostream& os)
|
|
{
|
|
int timeoutMaxMs = SocketPoll::DefaultPollTimeoutMs;
|
|
int events = getPollEvents(std::chrono::steady_clock::now(), timeoutMaxMs);
|
|
os << "\t" << getFD() << "\t" << events << "\t"
|
|
<< _inBuffer.size() << "\t" << _outBuffer.size() << "\t";
|
|
_socketHandler->dumpState(os);
|
|
if (_inBuffer.size() > 0)
|
|
dump_hex("\t\tinBuffer:\n", "\t\t", _inBuffer);
|
|
if (_outBuffer.size() > 0)
|
|
dump_hex("\t\toutBuffer:\n", "\t\t", _inBuffer);
|
|
}
|
|
|
|
void SocketPoll::dumpState(std::ostream& os)
|
|
{
|
|
// FIXME: NOT thread-safe! _pollSockets is modified from the polling thread!
|
|
os << " Poll [" << _pollSockets.size() << "] - wakeup r: "
|
|
<< _wakeup[0] << " w: " << _wakeup[1] << "\n";
|
|
if (_newCallbacks.size() > 0)
|
|
os << "\tcallbacks: " << _newCallbacks.size() << "\n";
|
|
os << "\tfd\tevents\trsize\twsize\n";
|
|
for (auto &i : _pollSockets)
|
|
i->dumpState(os);
|
|
}
|
|
|
|
namespace HttpHelper
|
|
{
|
|
void sendFile(const std::shared_ptr<StreamSocket>& socket, const std::string& path,
|
|
Poco::Net::HTTPResponse& response, bool noCache)
|
|
{
|
|
struct stat st;
|
|
if (stat(path.c_str(), &st) != 0)
|
|
{
|
|
LOG_WRN("#" << socket->getFD() << ": Failed to stat [" << path << "]. File will not be sent.");
|
|
throw Poco::FileNotFoundException("Failed to stat [" + path + "]. File will not be sent.");
|
|
return;
|
|
}
|
|
|
|
int bufferSize = std::min(st.st_size, (off_t)Socket::MaximumSendBufferSize);
|
|
if (st.st_size >= socket->getSendBufferSize())
|
|
{
|
|
socket->setSocketBufferSize(bufferSize);
|
|
bufferSize = socket->getSendBufferSize();
|
|
}
|
|
|
|
response.setContentLength(st.st_size);
|
|
response.set("User-Agent", HTTP_AGENT_STRING);
|
|
response.set("Date", Poco::DateTimeFormatter::format(Poco::Timestamp(), Poco::DateTimeFormat::HTTP_FORMAT));
|
|
if (!noCache)
|
|
{
|
|
// 60 * 60 * 24 * 128 (days) = 11059200
|
|
response.set("Cache-Control", "max-age=11059200");
|
|
response.set("ETag", "\"" LOOLWSD_VERSION_HASH "\"");
|
|
}
|
|
|
|
std::ostringstream oss;
|
|
response.write(oss);
|
|
const std::string header = oss.str();
|
|
LOG_TRC("#" << socket->getFD() << ": Sending file [" << path << "]: " << header);
|
|
socket->send(header);
|
|
|
|
std::ifstream file(path, std::ios::binary);
|
|
bool flush = true;
|
|
do
|
|
{
|
|
char buf[bufferSize];
|
|
file.read(buf, sizeof(buf));
|
|
const int size = file.gcount();
|
|
if (size > 0)
|
|
socket->send(buf, size, flush);
|
|
else
|
|
break;
|
|
flush = false;
|
|
}
|
|
while (file);
|
|
}
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|