/
BufferedSocket.cpp
1181 lines (1098 loc) · 31.2 KB
/
BufferedSocket.cpp
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/*
* Copyright (C) 2001-2013 Jacek Sieka, arnetheduck on gmail point com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "stdinc.h"
#include "CompatibilityManager.h"
#include "BufferedSocket.h"
#include "TimerManager.h"
#include "SettingsManager.h"
#include "Streams.h"
#include "CryptoManager.h"
#include "ZUtils.h"
#include "ThrottleManager.h"
#include "LogManager.h"
#include "ResourceManager.h"
#include "IpGuard.h"
#include "ClientManager.h"
#include "Util.h"
#include "ShareManager.h"
#include "DebugManager.h"
#include "../FlyFeatures/flyServer.h"
// Polling is used for tasks...should be fixed...
static const uint64_t POLL_TIMEOUT = 250;
#ifdef FLYLINKDC_USE_SOCKET_COUNTER
volatile long BufferedSocket::g_sockets = 0;
#endif
BufferedSocket::BufferedSocket(char aSeparator) :
m_separator(aSeparator),
m_mode(MODE_LINE),
m_dataBytes(0),
m_rollback(0),
m_state(STARTING),
m_count_search_ddos(0),
// [-] brain-ripper
// should be rewritten using ThrottleManager
//sleep(0), // !SMT!-S
m_is_disconnecting(false),
m_threadId(ThreadID(-1)),
m_myInfoCount(0),
m_is_all_my_info_loaded(false),
m_is_hide_share(false)
{
start(64, "BufferedSocket");
#ifdef FLYLINKDC_USE_SOCKET_COUNTER
Thread::safeInc(g_sockets); // [!] IRainman opt.
#endif
}
BufferedSocket::~BufferedSocket()
{
#ifdef FLYLINKDC_USE_SOCKET_COUNTER
Thread::safeDec(g_sockets); // [!] IRainman opt.
#endif
}
void BufferedSocket::setMode(Modes aMode, size_t aRollback)
{
if (m_mode == aMode)
{
dcdebug("WARNING: Re-entering mode %d\n", m_mode);
return;
}
if (m_mode == MODE_ZPIPE && m_ZfilterIn)
{
// delete the filter when going out of zpipe mode.
m_ZfilterIn.reset();
}
switch (aMode)
{
case MODE_LINE:
m_rollback = aRollback;
//dcassert(!ClientManager::isShutdown());
#ifdef _DEBUG
//LogManager::message("BufferedSocket:: = MODE_LINE [2] - m_rollback = aRollback");
#endif;
break;
case MODE_ZPIPE:
m_ZfilterIn = std::unique_ptr<UnZFilter>(new UnZFilter); // [IntelC++ 2012 beta2] warning #734: "std::unique_ptr<_Ty, _Dx>::unique_ptr(const std::unique_ptr<_Ty, _Dx>::_Myt &) [with _Ty=UnZFilter, _Dx=std::default_delete<UnZFilter>]" (declared at line 2347 of "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\memory"), required for copy that was eliminated, is inaccessible
break;
case MODE_DATA:
break;
}
m_mode = aMode;
}
void BufferedSocket::setSocket(std::unique_ptr<Socket>& s) // [!] IRainman fix: add link
{
if (sock.get())
{
LogManager::message("BufferedSocket::setSocket - dcassert(!sock.get())");
}
dcassert(!sock.get());
sock = move(s);
}
#ifndef FLYLINKDC_HE
void BufferedSocket::resizeInBuf()
{
bool l_is_bad_alloc;
#if 0 // fix http://code.google.com/p/flylinkdc/issues/detail?id=1333
int l_size = sock->getSocketOptInt(SO_RCVBUF);
#else
int l_size = MAX_SOCKET_BUFFER_SIZE;
#endif
do
{
try
{
dcassert(l_size);
l_is_bad_alloc = false;
m_inbuf.resize(l_size);
}
catch (std::bad_alloc&)
{
l_size /= 2; // Çàêàçûâàåì â 2 ðàçà ìåíüøå
l_is_bad_alloc = l_size > 1024;
}
}
while (l_is_bad_alloc == true);
}
#endif // FLYLINKDC_HE
uint16_t BufferedSocket::accept(const Socket& srv, bool secure, bool allowUntrusted)
{
dcdebug("BufferedSocket::accept() %p\n", (void*)this);
std::unique_ptr<Socket> s(secure ? CryptoManager::getInstance()->getServerSocket(allowUntrusted) : new Socket);
auto ret = s->accept(srv);
setSocket(s);
setOptions();
addTask(ACCEPTED, nullptr);
return ret;
}
void BufferedSocket::connect(const string& aAddress, uint16_t aPort, bool secure, bool allowUntrusted, bool proxy)
{
connect(aAddress, aPort, 0, NAT_NONE, secure, allowUntrusted, proxy);
}
void BufferedSocket::connect(const string& aAddress, uint16_t aPort, uint16_t localPort, NatRoles natRole, bool secure, bool allowUntrusted, bool proxy)
{
dcdebug("BufferedSocket::connect() %p\n", (void*)this);
std::unique_ptr<Socket> s(secure ? (natRole == NAT_SERVER ? CryptoManager::getInstance()->getServerSocket(allowUntrusted) : CryptoManager::getInstance()->getClientSocket(allowUntrusted)) : new Socket);
s->create();
setSocket(s);
sock->bind(localPort, SETTING(BIND_ADDRESS));
initMyINFOLoader();
addTask(CONNECT, new ConnectInfo(aAddress, aPort, localPort, natRole, proxy && (SETTING(OUTGOING_CONNECTIONS) == SettingsManager::OUTGOING_SOCKS5)));
}
static const uint16_t LONG_TIMEOUT = 30000;
static const uint16_t SHORT_TIMEOUT = 1000;
void BufferedSocket::threadConnect(const string& aAddr, uint16_t aPort, uint16_t localPort, NatRoles natRole, bool proxy)
{
m_count_search_ddos = 0;
dcassert(m_state == STARTING);
dcdebug("threadConnect %s:%d/%d\n", aAddr.c_str(), (int)localPort, (int)aPort);
fire(BufferedSocketListener::Connecting());
const uint64_t endTime = GET_TICK() + LONG_TIMEOUT;
m_state = RUNNING;
do // while (GET_TICK() < endTime) // [~] IRainman opt
{
if (socketIsDisconecting()) // [+] IRainman fix.
break;
dcdebug("threadConnect attempt to addr \"%s\"\n", aAddr.c_str());
try
{
if (proxy)
{
sock->socksConnect(aAddr, aPort, LONG_TIMEOUT);
}
else
{
sock->connect(aAddr, aPort); // https://www.box.net/shared/l08o2vdekthrrp319m8n + http://www.flylinkdc.ru/2012/10/ashampoo-firewall.html
}
setOptions();
// [+] IRainman fix
while (true)
{
#ifndef FLYLINKDC_HE
if (ClientManager::isShutdown())
{
//dcassert(0);
return;
}
#endif
if (sock->waitConnected(POLL_TIMEOUT))
{
if (!socketIsDisconecting())
{
resizeInBuf();
fire(BufferedSocketListener::Connected()); //[1] https://www.box.net/shared/52748dbc4f8a46f0a71b
}
return;
}
if (endTime <= GET_TICK())
break;
if (socketIsDisconecting())
return;
}
/* [-] IRainman fix
bool connSucceeded;
while (!(connSucceeded = sock->waitConnected(POLL_TIMEOUT)) && endTime >= GET_TICK())
{
if (disconnecting) return;
}
if (connSucceeded)
{
resizeInBuf();
fire(BufferedSocketListener::Connected());
return;
}
[~] IRainman fix end*/
}
catch (const SSLSocketException&)
{
throw;
}
catch (const SocketException&)
{
if (natRole == NAT_NONE)
throw;
sleep(SHORT_TIMEOUT);
}
}
while (GET_TICK() < endTime); // [~] IRainman opt
throw SocketException(STRING(CONNECTION_TIMEOUT));
}
void BufferedSocket::threadAccept()
{
dcassert(m_state == STARTING);
dcdebug("threadAccept\n");
m_state = RUNNING;
resizeInBuf();
const uint64_t startTime = GET_TICK();
while (!sock->waitAccepted(POLL_TIMEOUT))
{
if (socketIsDisconecting()) // [!] IRainman fix
return;
if ((startTime + LONG_TIMEOUT) < GET_TICK())
{
throw SocketException(STRING(CONNECTION_TIMEOUT));
}
}
}
bool BufferedSocket::all_search_parser(const string::size_type p_pos_next_separator, const string& p_line,
CFlySearchArrayTTH& p_tth_search,
CFlySearchArrayFile& p_file_search)
{
if (p_line.compare(0, 8, "$Search ", 8) == 0)
{
if (m_is_hide_share == false)
{
const string l_line_item = p_line.substr(0, p_pos_next_separator);
auto l_marker_tth = l_line_item.find("?0?9?TTH:");
// TODO íàó÷èòüñÿ îáðàáàòûâàòü ëèìèò ïî ðàçìåðó âèäà
// "x.x.x.x:yyy T?F?57671680?9?TTH:A3VSWSWKCVC4N6EP2GX47OEMGT5ZL52BOS2LAHA"
if (l_marker_tth != string::npos && l_marker_tth > 5 && l_line_item[l_marker_tth - 4] == ' ') // Ïîïðàâêà íà ïîëíóþ êîìàíäó F?T?0?9?TTH: èëè F?F?0?9?TTH: èëè T?T?0?9?TTH:
{
l_marker_tth -= 4;
const string l_tth_str = l_line_item.substr(l_marker_tth + 13, 39);
const TTHValue l_tth(l_tth_str);
if (!ShareManager::isUnknownTTH(l_tth))
{
const CFlySearchItemTTH l_item(TTHValue(l_line_item.substr(l_marker_tth + 13, 39)), l_line_item.substr(8, l_marker_tth - 8));
dcassert(l_item.m_search.find('|') == string::npos && l_item.m_search.find('$') == string::npos);
p_tth_search.push_back(l_item);
}
else
{
COMMAND_DEBUG("[TTH][FastSkip] " + l_line_item, DebugTask::HUB_IN, getIp() + ':' + Util::toString(getPort()));
#ifdef _DEBUG
// LogManager::message("BufferedSocket::all_search_parser Skip unknown TTH = " + l_tth.toBase32());
#endif
}
}
else
{
if (Util::isValidSearch(l_line_item) == false)
{
if (!m_count_search_ddos)
{
const string l_error = "BufferedSocket::all_search_parser DDoS $Search command: " + l_line_item + " Hub IP = " + getIp();
CFlyServerJSON::pushError(20, l_error);
LogManager::message(l_error);
if (!m_count_search_ddos)
{
fire(BufferedSocketListener::DDoSSearchDetect(), l_error);
}
m_count_search_ddos++;
}
COMMAND_DEBUG("[DDoS] " + l_line_item, DebugTask::HUB_IN, getIp() + ':' + Util::toString(getPort()));
return true;
}
#if 0
auto l_marker_file = l_line_item.find(' ', 8);
if (l_marker_file == string::npos || l_line_item.size() <= 12)
{
const string l_error = "BufferedSocket::all_search_parser error format $Search command: " + l_line_item + " Hub IP = " + getIp();
CFlyServerJSON::pushError(19, l_error);
LogManager::message(l_error);
return true;
}
#endif
#ifdef _DEBUG
// LogManager::message("BufferedSocket::all_search_parser Skip unknown file = " + aString);
#endif
CFlySearchItemFile l_item;
if (l_item.is_parse_nmdc_search(l_line_item.substr(8)) == true)
{
if (ShareManager::isUnknownFile(l_item.getRAWQuery()))
{
COMMAND_DEBUG("[File][FastSkip][Unknown files] " + l_line_item, DebugTask::HUB_IN, getIp() + ':' + Util::toString(getPort()));
#ifdef _DEBUG
// LogManager::message("BufferedSocket::all_search_parser Skip unknown File = " + l_item.m_raw_search);
#endif
}
else
{
p_file_search.push_back(l_item);
}
}
else
{
#ifdef _DEBUG
LogManager::message("BufferedSocket::all_search_parser error is_parse_nmdc_search = " + l_item.m_raw_search + " m_error_level = " + Util::toString(l_item.m_error_level));
#endif
}
}
}
return true;
}
return false;
}
void BufferedSocket::all_myinfo_parser(const string::size_type p_pos_next_separator, const string& p_line, StringList& p_all_myInfo, bool p_is_zon)
{
const bool l_is_MyINFO = m_is_all_my_info_loaded == false ? p_line.compare(0, 8, "$MyINFO ", 8) == 0 : false;
const string l_line_item = l_is_MyINFO ? p_line.substr(8, p_pos_next_separator - 8) : p_line.substr(0, p_pos_next_separator);
if (m_is_all_my_info_loaded == false)
{
if (l_is_MyINFO)
{
++m_myInfoCount;
p_all_myInfo.push_back(l_line_item);
}
else if (m_myInfoCount)
{
if (!p_all_myInfo.empty())
{
fire(BufferedSocketListener::MyInfoArray(), p_all_myInfo); // [+]PPA
}
m_is_all_my_info_loaded = true; // çàêîí÷èëñÿ ñòàðòîâûé ïîòîê $MyINFO
}
}
if (p_all_myInfo.empty())
{
if (l_line_item.compare(0, 4, "$ZOn", 4) == 0)
{
setMode(MODE_ZPIPE);
}
else
{
dcassert(m_mode == MODE_LINE || m_mode == MODE_ZPIPE);
#ifdef _DEBUG
for (auto i = l_line_item.cbegin(); i != l_line_item.cend(); ++i)
{
// dcassert(isascii(*i));
}
if (l_line_item.length() && ClientManager::isShutdown())
{
if (!(l_line_item[0] == '<' || l_line_item[0] == '$' || l_line_item[l_line_item.length() - 1] == '|'))
{
LogManager::message("OnLine: " + l_line_item);
}
}
#endif
if (!ClientManager::isShutdown())
{
fire(BufferedSocketListener::Line(), l_line_item); // TODO - îòêàçàòüñÿ îò âðåìåííîé ïåðåìåííîé l è ñêîëüçèòü ïî îêíó inbuf
}
}
}
}
/*
#ifdef FLYLINKDC_EMULATOR_4000_USERS
static bool g_is_test = false;
const int l_count_guest = 4000;
if (!g_is_test)
{
g_is_test = true;
for (int i = 0; i < l_count_guest; ++i)
{
char bbb[200];
snprintf(bbb, sizeof(bbb), "$ALL Guest%d <<Peers V:(r622),M:P,H:1/0/0,S:15,C:Êåìåðîâî>$ $%c$$3171624055$", i, 5);
l_all_myInfo.push_back(bbb);
}
}
#endif // FLYLINKDC_EMULATOR_4000_USERS
#ifdef FLYLINKDC_EMULATOR_4000_USERS
// Ãåíåðèðóåì ñëó÷àéíûå IP-àäðåñà
for (int i = 0; i < l_count_guest; ++i)
{
char bbb[200];
boost::system::error_code ec;
const auto l_start = boost::asio::ip::address_v4::from_string("200.23.17.18", ec);
const auto l_stop = boost::asio::ip::address_v4::from_string("240.200.17.18", ec);
boost::asio::ip::address_v4 l_rnd_ip(Util::rand(l_start.to_ulong(), l_stop.to_ulong()));
snprintf(bbb, sizeof(bbb), "$UserIP Guest%d %s$$", i, l_rnd_ip.to_string().c_str());
fire(BufferedSocketListener::Line(), bbb);
}
#endif
*/
void BufferedSocket::threadRead()
{
if (m_state != RUNNING)
return;
int l_left = (m_mode == MODE_DATA) ? ThrottleManager::getInstance()->read(sock.get(), &m_inbuf[0], (int)m_inbuf.size()) : sock->read(&m_inbuf[0], (int)m_inbuf.size());
if (l_left == -1)
{
// EWOULDBLOCK, no data received...
return;
}
else if (l_left == 0)
{
// This socket has been closed...
throw SocketException(STRING(CONNECTION_CLOSED));
}
string::size_type l_pos = 0;
// always uncompressed data
string l;
int l_bufpos = 0;
int l_total = l_left;
#ifdef _DEBUG
if (m_mode == MODE_LINE)
{
// LogManager::message("BufferedSocket::threadRead[MODE_LINE] = " + string((char*) & inbuf[0], l_left));
}
#endif
while (l_left > 0)
{
switch (m_mode)
{
case MODE_ZPIPE:
{
const int BUF_SIZE = 1024;
// Special to autodetect nmdc connections...
string::size_type l_zpos = 0; // warning C6246: Local declaration of 'pos' hides declaration of the same name in outer scope.
std::unique_ptr<char[]> buffer(new char[BUF_SIZE]);
l = line;
// decompress all input data and store in l.
while (l_left)
{
size_t l_in = BUF_SIZE;
size_t l_used = l_left;
bool ret = (*m_ZfilterIn)(&m_inbuf[0] + l_total - l_left, l_used, &buffer[0], l_in);
l_left -= l_used;
l.append(&buffer[0], l_in);
// if the stream ends before the data runs out, keep remainder of data in inbuf
if (!ret)
{
l_bufpos = l_total - l_left;
setMode(MODE_LINE, m_rollback);
break;
}
}
// process all lines
#define USE_FLYLINKDC_MYINFO_ARRAY
#ifdef USE_FLYLINKDC_MYINFO_ARRAY
#ifdef _DEBUG
// LogManager::message("BufferedSocket::threadRead[MODE_ZPIPE] = " + l);
#endif
//
if (!ClientManager::isShutdown())
{
StringList l_all_myInfo;
CFlySearchArrayTTH l_tth_search;
CFlySearchArrayFile l_file_search;
while ((l_zpos = l.find(m_separator)) != string::npos)
{
if (l_zpos > 0) // check empty (only pipe) command and don't waste cpu with it ;o)
{
if (all_search_parser(l_zpos, l, l_tth_search, l_file_search) == false)
{
all_myinfo_parser(l_zpos, l, l_all_myInfo, true);
}
}
l.erase(0, l_zpos + 1 /* separator char */); //[3] https://www.box.net/shared/74efa5b96079301f7194
}
// store remainder
if (!l_all_myInfo.empty())
{
fire(BufferedSocketListener::MyInfoArray(), l_all_myInfo);
}
if (!l_tth_search.empty())
{
fire(BufferedSocketListener::SearchArrayTTH(), l_tth_search);
}
if (!l_file_search.empty())
{
fire(BufferedSocketListener::SearchArrayFile(), l_file_search);
}
#else
// process all lines
while ((pos = l.find(m_separator)) != string::npos)
{
if (pos > 0) // check empty (only pipe) command and don't waste cpu with it ;o)
fire(BufferedSocketListener::Line(), l.substr(0, pos));
l.erase(0, pos + 1 /* separator char */); // TODO íå ýôôåêòèâíî
}
#endif
}
#ifdef _DEBUG
else
{
const string l_log = "Skip MODE_LINE [after ZLIB] - FlylinkDC++ Destoy... l = " + l;
LogManager::message(l_log);
}
#endif
// store remainder
line = l;
break;
}
case MODE_LINE:
{
// Special to autodetect nmdc connections...
if (m_separator == 0)
{
if (m_inbuf[0] == '$')
{
m_separator = '|';
}
else
{
m_separator = '\n';
}
}
//======================================================================
// TODO - âñòàâèòü áûñòðóþ îáðàáîòêó ïîèñêà ïî TTH áåç âûçîâà ëèñòåíåðîâ
// Åñëè ïàñèâ - îòâå÷àåì â áóôåð ñðàçó
// Åñëè àêòèâ - êèäàåì îòñûëêó UDP (òîæå ÷åðåç î÷åðåäü?)
//======================================================================
l = line + string((char*)& m_inbuf[l_bufpos], l_left);
//dcassert(isalnum(l[0]) || isalpha(l[0]) || isascii(l[0]));
#if 0
int l_count_separator = 0;
#endif
#ifdef _DEBUG
//LogManager::message("MODE_LINE . line = " + line);
//LogManager::message("MODE_LINE = " + l);
#endif
if (!ClientManager::isShutdown())
{
StringList l_all_myInfo;
CFlySearchArrayTTH l_tth_search;
CFlySearchArrayFile l_file_search;
while ((l_pos = l.find(m_separator)) != string::npos)
{
#if 0
if (l_count_separator++ && l.length() > 0 && BOOLSETTING(LOG_PROTOCOL))
{
StringMap params;
const string l_log = "MODE_LINE l_count_separator = " + Util::toString(l_count_separator) + " l_left = " + Util::toString(l_left) + " l.length()=" + Util::toString(l.length()) + " l = " + l;
LogManager::message(l_log);
}
#endif
if (l_pos > 0) // check empty (only pipe) command and don't waste cpu with it ;o)
{
if (all_search_parser(l_pos, l, l_tth_search, l_file_search) == false)
{
all_myinfo_parser(l_pos, l, l_all_myInfo, false);
}
}
l.erase(0, l_pos + 1 /* separator char */);
// TODO - erase íå ýôôåêòèâíî.
if (l.length() < (size_t)l_left)
{
l_left = l.length();
}
//dcassert(mode == MODE_LINE);
if (m_mode != MODE_LINE)
{
// dcassert(mode == MODE_LINE);
// TOOD ? m_myInfoStop = true;
// we changed mode; remainder of l is invalid.
l.clear();
l_bufpos = l_total - l_left;
break;
}
}
//
if (!l_all_myInfo.empty())
{
fire(BufferedSocketListener::MyInfoArray(), l_all_myInfo); // [+]PPA
}
if (!l_tth_search.empty())
{
fire(BufferedSocketListener::SearchArrayTTH(), l_tth_search);
}
if (!l_file_search.empty())
{
fire(BufferedSocketListener::SearchArrayFile(), l_file_search);
}
}
else
{
#ifdef _DEBUG
const string l_log = "Skip MODE_LINE [normal] - FlylinkDC++ Destoy... l = " + l;
LogManager::message(l_log);
#endif
l.clear();
l_bufpos = l_total - l_left;
l_left = 0;
l_pos = string::npos;
}
if (l_pos == string::npos)
{
l_left = 0;
}
line = l;
break;
}
case MODE_DATA:
while (l_left > 0)
{
if (m_dataBytes == -1)
{
fire(BufferedSocketListener::Data(), &m_inbuf[l_bufpos], l_left);
l_bufpos += (l_left - m_rollback);
l_left = m_rollback;
m_rollback = 0;
}
else
{
const int high = (int)min(m_dataBytes, (int64_t)l_left);
//dcassert(high != 0);
if (high != 0) // [+] IRainman fix.
{
fire(BufferedSocketListener::Data(), &m_inbuf[l_bufpos], high);
l_bufpos += high;
l_left -= high;
m_dataBytes -= high;
}
if (m_dataBytes == 0)
{
m_mode = MODE_LINE;
#ifdef _DEBUG
LogManager::message("BufferedSocket:: = MODE_LINE [1]");
#endif;
#ifdef FLYLINKDC_USE_CROOKED_HTTP_CONNECTION
fire(BufferedSocketListener::ModeChange());
#endif
break; // [DC++] break loop, in case setDataMode is called with less than read buffer size
}
}
}
break;
}
}
if (m_mode == MODE_LINE && line.size() > static_cast<size_t>(SETTING(MAX_COMMAND_LENGTH)))
{
throw SocketException(STRING(COMMAND_TOO_LONG));
}
}
void BufferedSocket::disconnect(bool p_graceless /*= false */)
{
if (p_graceless)
{
m_is_disconnecting = true;
}
addTask(DISCONNECT, nullptr);
}
boost::asio::ip::address_v4 BufferedSocket::getIp4() const
{
if (hasSocket())
{
boost::system::error_code ec;
const auto l_ip = boost::asio::ip::address_v4::from_string(sock->getIp(), ec); // TODO - êîíâåðòíóòü IP è â ñîêåòàõ
dcassert(!ec);
return l_ip;
}
else
{
return boost::asio::ip::address_v4();
}
}
void BufferedSocket::putBufferedSocket(BufferedSocket*& p_sock, bool p_delete /*= false*/)
{
if (p_sock)
{
p_sock->shutdown();
if (p_delete)
{
delete p_sock;
}
p_sock = nullptr;
}
}
#ifdef FLYLINKDC_USE_SOCKET_COUNTER
void BufferedSocket::waitShutdown()
{
int l_max_count = 500;
while (g_sockets > 0 && --l_max_count)
{
sleep(10); // TODO - Åñëè ñëèøêîì äîëãî æäåì. ñïðîñèòü äèàëîãîì è åñëè îòâåòÿò "äà" - çàêðûòüñÿ
// TODO - ñëó÷àé çàâèñàíèÿ ïåðåäàòü íà ôëàé-ñåðâåð.
}
}
#endif
void BufferedSocket::threadSendFile(InputStream* file)
{
if (m_state != RUNNING)
return;
if (socketIsDisconecting()) // [!] IRainman fix
return;
dcassert(file != NULL);
#if 0 // fix http://code.google.com/p/flylinkdc/issues/detail?id=1333
const size_t sockSize = (size_t)sock->getSocketOptInt(SO_SNDBUF);
const size_t bufSize = max(sockSize, (size_t)MAX_SOCKET_BUFFER_SIZE);
#else
const size_t sockSize = MAX_SOCKET_BUFFER_SIZE;
const size_t bufSize = MAX_SOCKET_BUFFER_SIZE;
#endif
// const size_t maxSegment = (size_t)sock->getSocketOptInt(TCP_MAXSEG);
ByteVector l_readBuf(bufSize); // https://www.box.net/shared/07ab0210ed0f83ab842e
ByteVector l_writeBuf(bufSize);
size_t readPos = 0;
bool readDone = false;
dcdebug("Starting threadSend\n");
while (!socketIsDisconecting()) // [!] IRainman fix
{
// [-] brain-ripper
// should be rewritten using ThrottleManager
//int UserSleep = getSleep(); // !SMT!-S
if (!readDone && l_readBuf.size() > readPos)
{
// Fill read buffer
size_t bytesRead = l_readBuf.size() - readPos;
size_t actual = file->read(&l_readBuf[readPos], bytesRead); // TODO ìîæíî óçíàòü ÷òî ñ÷èòàëè ïîñëåäíèé êóñîê â ôàéë
if (bytesRead > 0)
{
fire(BufferedSocketListener::BytesSent(), bytesRead, 0);
// Èíôó î òîì ÷òî ñ÷èòàëè ñ äèñê íå øëåì ôàåðîì
}
if (actual == 0)
{
readDone = true;
}
else
{
readPos += actual;
}
// [-] brain-ripper
// should be rewritten using ThrottleManager
/*
if (UserSleep > 0)
{
Thread::sleep(UserSleep); // !SMT!-S
bytesRead = min(bytesRead, (size_t)1024);
}
*/
}
if (readDone && readPos == 0)
{
fire(BufferedSocketListener::TransmitDone());
return;
}
l_readBuf.swap(l_writeBuf);
l_readBuf.resize(bufSize);
l_writeBuf.resize(readPos);
readPos = 0;
size_t writePos = 0;
int written = 0;
while (writePos < l_writeBuf.size())
{
if (socketIsDisconecting()) // [!] IRainman fix
return;
if (written == -1)
{
// workaround for OpenSSL (crashes when previous write failed and now retrying with different writeSize)
size_t l_writeSize = 0;
written = sock->write(&l_writeBuf[writePos], l_writeSize);
}
else
{
size_t l_writeSize = min(sockSize / 2, l_writeBuf.size() - writePos);
written = ThrottleManager::getInstance()->write(sock.get(), &l_writeBuf[writePos], l_writeSize);
}
if (written > 0)
{
writePos += written;
fire(BufferedSocketListener::BytesSent(), 0, written);
}
else if (written == -1)
{
// [-] brain-ripper
// should be rewritten using ThrottleManager
//if(!readDone && readPos < readBuf.size() && UserSleep <= 0) // !SMT!-S
if (!readDone && readPos < l_readBuf.size())
{
// Read a little since we're blocking anyway...
size_t bytesRead = min(l_readBuf.size() - readPos, l_readBuf.size() / 2);
size_t actual = file->read(&l_readBuf[readPos], bytesRead);
if (bytesRead > 0)
{
fire(BufferedSocketListener::BytesSent(), bytesRead, 0);
}
if (actual == 0)
{
readDone = true;
}
else
{
readPos += actual;
}
}
else
{
while (!socketIsDisconecting()) // [!] IRainman fix
{
const int w = sock->wait(POLL_TIMEOUT, Socket::WAIT_WRITE | Socket::WAIT_READ);
if (w & Socket::WAIT_READ)
{
threadRead();
}
if (w & Socket::WAIT_WRITE)
{
break;
}
}
}
}
}
}
}
void BufferedSocket::write(const char* aBuf, size_t aLen)
{
if (!hasSocket())
return;
FastLock l(cs);
if (m_writeBuf.empty())
addTaskL(SEND_DATA, nullptr);
#ifdef _DEBUG
if (aLen > 1)
{
dcassert(!(aBuf[aLen - 1] == '|' && aBuf[aLen - 2] == '|'));
}
#endif
m_writeBuf.insert(m_writeBuf.end(), aBuf, aBuf + aLen); // [1] std::bad_alloc nomem https://www.box.net/shared/nmobw6wofukhcdr7lx4h
}
void BufferedSocket::threadSendData()
{
if (m_state != RUNNING)
return;
ByteVector l_sendBuf;
{
FastLock l(cs);
if (m_writeBuf.empty())
{
dcassert(!m_writeBuf.empty());
return;
}
m_writeBuf.swap(l_sendBuf);
}
size_t left = l_sendBuf.size();
size_t done = 0;
while (left > 0)
{
if (socketIsDisconecting()) // [!] IRainman fix
{
return;
}
int w = sock->wait(POLL_TIMEOUT, Socket::WAIT_READ | Socket::WAIT_WRITE);
if (w & Socket::WAIT_READ)
{
threadRead();
}
if (w & Socket::WAIT_WRITE)
{
// TODO - find ("||")
const int n = sock->write(&l_sendBuf[done], left); // adguard - https://www.box.net/shared/9201edaa1fa1b83a8d3c
if (n > 0)
{
left -= n;
done += n;
}
}
}
}
bool BufferedSocket::checkEvents()
{
// [!] application hangs http://www.flickr.com/photos/96019675@N02/9605525265/ http://code.google.com/p/flylinkdc/issues/detail?id=1245
while (m_state == RUNNING ? taskSem.wait(0) : taskSem.wait())
{
pair<Tasks, std::unique_ptr<TaskData>> p;
{
FastLock l(cs);
if (!m_tasks.empty())
{
swap(p, m_tasks.front()); // [!] IRainman opt.
m_tasks.pop_front(); // [!] IRainman opt.
}
else
{
dcassert(!m_tasks.empty());
return false;
}
}
/* [-] IRainman fix.
if (p.first == SHUTDOWN)
{
return false;
}
else
[-] */
// [!]
if (m_state == RUNNING)
{
if (p.first == UPDATED)
{
fire(BufferedSocketListener::Updated());