| 1 | /** \file SocketHandler.cpp |
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| 2 | ** \date 2004-02-13 |
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| 3 | ** \author grymse@alhem.net |
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| 4 | **/ |
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| 5 | /* |
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| 6 | Copyright (C) 2004-2007 Anders Hedstrom |
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| 7 | |
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| 8 | This library is made available under the terms of the GNU GPL. |
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| 9 | |
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| 10 | If you would like to use this library in a closed-source application, |
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| 11 | a separate license agreement is available. For information about |
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| 12 | the closed-source license agreement for the C++ sockets library, |
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| 13 | please visit http://www.alhem.net/Sockets/license.html and/or |
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| 14 | email license@alhem.net. |
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| 15 | |
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| 16 | This program is free software; you can redistribute it and/or |
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| 17 | modify it under the terms of the GNU General Public License |
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| 18 | as published by the Free Software Foundation; either version 2 |
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| 19 | of the License, or (at your option) any later version. |
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| 20 | |
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| 21 | This program is distributed in the hope that it will be useful, |
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| 22 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 24 | GNU General Public License for more details. |
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| 25 | |
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| 26 | You should have received a copy of the GNU General Public License |
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| 27 | along with this program; if not, write to the Free Software |
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| 28 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 29 | */ |
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| 30 | #ifdef _WIN32 |
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| 31 | #ifdef _MSC_VER |
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| 32 | #pragma warning(disable:4786) |
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| 33 | #endif |
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| 34 | #endif |
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| 35 | #include <stdlib.h> |
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| 36 | #include <errno.h> |
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| 37 | |
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| 38 | #include "SocketHandler.h" |
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| 39 | #include "UdpSocket.h" |
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| 40 | #include "ResolvSocket.h" |
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| 41 | #include "ResolvServer.h" |
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| 42 | #include "TcpSocket.h" |
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| 43 | #include "Mutex.h" |
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| 44 | #include "Utility.h" |
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| 45 | #include "SocketAddress.h" |
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| 46 | |
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| 47 | #ifdef SOCKETS_NAMESPACE |
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| 48 | namespace SOCKETS_NAMESPACE { |
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| 49 | #endif |
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| 50 | |
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| 51 | |
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| 52 | //#ifdef _DEBUG |
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| 53 | //#define DEB(x) x; fflush(stderr); |
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| 54 | //#else |
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| 55 | #define DEB(x) |
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| 56 | //#endif |
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| 57 | |
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| 58 | |
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| 59 | SocketHandler::SocketHandler(StdLog *p) |
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| 60 | :m_stdlog(p) |
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| 61 | ,m_mutex(m_mutex) |
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| 62 | ,m_b_use_mutex(false) |
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| 63 | ,m_maxsock(0) |
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| 64 | ,m_preverror(-1) |
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| 65 | ,m_errcnt(0) |
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| 66 | ,m_tlast(0) |
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| 67 | #ifdef ENABLE_SOCKS4 |
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| 68 | ,m_socks4_host(0) |
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| 69 | ,m_socks4_port(0) |
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| 70 | ,m_bTryDirect(false) |
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| 71 | #endif |
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| 72 | #ifdef ENABLE_RESOLVER |
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| 73 | ,m_resolv_id(0) |
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| 74 | ,m_resolver(NULL) |
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| 75 | #endif |
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| 76 | #ifdef ENABLE_POOL |
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| 77 | ,m_b_enable_pool(false) |
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| 78 | #endif |
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| 79 | #ifdef ENABLE_TRIGGERS |
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| 80 | ,m_next_trigger_id(0) |
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| 81 | #endif |
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| 82 | #ifdef ENABLE_DETACH |
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| 83 | ,m_slave(false) |
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| 84 | #endif |
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| 85 | { |
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| 86 | FD_ZERO(&m_rfds); |
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| 87 | FD_ZERO(&m_wfds); |
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| 88 | FD_ZERO(&m_efds); |
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| 89 | } |
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| 90 | |
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| 91 | |
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| 92 | SocketHandler::SocketHandler(Mutex& mutex,StdLog *p) |
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| 93 | :m_stdlog(p) |
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| 94 | ,m_mutex(mutex) |
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| 95 | ,m_b_use_mutex(true) |
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| 96 | ,m_maxsock(0) |
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| 97 | ,m_preverror(-1) |
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| 98 | ,m_errcnt(0) |
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| 99 | ,m_tlast(0) |
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| 100 | #ifdef ENABLE_SOCKS4 |
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| 101 | ,m_socks4_host(0) |
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| 102 | ,m_socks4_port(0) |
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| 103 | ,m_bTryDirect(false) |
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| 104 | #endif |
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| 105 | #ifdef ENABLE_RESOLVER |
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| 106 | ,m_resolv_id(0) |
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| 107 | ,m_resolver(NULL) |
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| 108 | #endif |
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| 109 | #ifdef ENABLE_POOL |
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| 110 | ,m_b_enable_pool(false) |
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| 111 | #endif |
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| 112 | #ifdef ENABLE_TRIGGERS |
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| 113 | ,m_next_trigger_id(0) |
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| 114 | #endif |
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| 115 | #ifdef ENABLE_DETACH |
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| 116 | ,m_slave(false) |
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| 117 | #endif |
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| 118 | { |
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| 119 | m_mutex.Lock(); |
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| 120 | FD_ZERO(&m_rfds); |
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| 121 | FD_ZERO(&m_wfds); |
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| 122 | FD_ZERO(&m_efds); |
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| 123 | } |
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| 124 | |
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| 125 | |
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| 126 | SocketHandler::~SocketHandler() |
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| 127 | { |
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| 128 | #ifdef ENABLE_RESOLVER |
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| 129 | if (m_resolver) |
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| 130 | { |
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| 131 | m_resolver -> Quit(); |
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| 132 | } |
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| 133 | #endif |
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| 134 | { |
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| 135 | while (m_sockets.size()) |
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| 136 | { |
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| 137 | DEB( fprintf(stderr, "Emptying sockets list in SocketHandler destructor, %d instances\n", (int)m_sockets.size());) |
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| 138 | socket_m::iterator it = m_sockets.begin(); |
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| 139 | Socket *p = it -> second; |
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| 140 | if (p) |
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| 141 | { |
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| 142 | DEB( fprintf(stderr, " fd %d\n", p -> GetSocket());) |
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| 143 | p -> Close(); |
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| 144 | DEB( fprintf(stderr, " fd closed %d\n", p -> GetSocket());) |
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| 145 | // p -> OnDelete(); // hey, I turn this back on. what's the worst that could happen??!! |
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| 146 | // MinionSocket breaks, calling MinderHandler methods in OnDelete - |
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| 147 | // MinderHandler is already gone when that happens... |
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| 148 | |
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| 149 | // only delete socket when controlled |
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| 150 | // ie master sockethandler can delete non-detached sockets |
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| 151 | // and a slave sockethandler can only delete a detach socket |
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| 152 | if (p -> DeleteByHandler() |
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| 153 | #ifdef ENABLE_DETACH |
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| 154 | && !(m_slave ^ p -> IsDetached()) |
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| 155 | #endif |
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| 156 | ) |
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| 157 | { |
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| 158 | p -> SetErasedByHandler(); |
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| 159 | delete p; |
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| 160 | } |
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| 161 | m_sockets.erase(it); |
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| 162 | } |
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| 163 | else |
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| 164 | { |
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| 165 | m_sockets.erase(it); |
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| 166 | } |
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| 167 | DEB( fprintf(stderr, "next\n");) |
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| 168 | } |
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| 169 | DEB( fprintf(stderr, "/Emptying sockets list in SocketHandler destructor, %d instances\n", (int)m_sockets.size());) |
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| 170 | } |
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| 171 | #ifdef ENABLE_RESOLVER |
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| 172 | if (m_resolver) |
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| 173 | { |
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| 174 | delete m_resolver; |
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| 175 | } |
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| 176 | #endif |
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| 177 | if (m_b_use_mutex) |
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| 178 | { |
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| 179 | m_mutex.Unlock(); |
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| 180 | } |
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| 181 | } |
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| 182 | |
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| 183 | |
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| 184 | Mutex& SocketHandler::GetMutex() const |
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| 185 | { |
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| 186 | return m_mutex; |
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| 187 | } |
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| 188 | |
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| 189 | |
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| 190 | #ifdef ENABLE_DETACH |
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| 191 | void SocketHandler::SetSlave(bool x) |
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| 192 | { |
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| 193 | m_slave = x; |
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| 194 | } |
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| 195 | |
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| 196 | |
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| 197 | bool SocketHandler::IsSlave() |
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| 198 | { |
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| 199 | return m_slave; |
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| 200 | } |
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| 201 | #endif |
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| 202 | |
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| 203 | |
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| 204 | void SocketHandler::RegStdLog(StdLog *log) |
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| 205 | { |
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| 206 | m_stdlog = log; |
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| 207 | } |
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| 208 | |
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| 209 | |
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| 210 | void SocketHandler::LogError(Socket *p,const std::string& user_text,int err,const std::string& sys_err,loglevel_t t) |
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| 211 | { |
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| 212 | if (m_stdlog) |
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| 213 | { |
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| 214 | m_stdlog -> error(this, p, user_text, err, sys_err, t); |
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| 215 | } |
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| 216 | } |
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| 217 | |
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| 218 | |
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| 219 | void SocketHandler::Add(Socket *p) |
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| 220 | { |
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| 221 | if (p -> GetSocket() == INVALID_SOCKET) |
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| 222 | { |
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| 223 | LogError(p, "Add", -1, "Invalid socket", LOG_LEVEL_WARNING); |
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| 224 | if (p -> CloseAndDelete()) |
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| 225 | { |
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| 226 | m_delete.push_back(p); |
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| 227 | } |
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| 228 | return; |
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| 229 | } |
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| 230 | if (m_add.find(p -> GetSocket()) != m_add.end()) |
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| 231 | { |
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| 232 | LogError(p, "Add", (int)p -> GetSocket(), "Attempt to add socket already in add queue", LOG_LEVEL_FATAL); |
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| 233 | m_delete.push_back(p); |
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| 234 | return; |
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| 235 | } |
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| 236 | m_add[p -> GetSocket()] = p; |
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| 237 | } |
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| 238 | |
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| 239 | |
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| 240 | void SocketHandler::Get(SOCKET s,bool& r,bool& w,bool& e) |
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| 241 | { |
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| 242 | if (s >= 0) |
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| 243 | { |
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| 244 | r = FD_ISSET(s, &m_rfds) ? true : false; |
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| 245 | w = FD_ISSET(s, &m_wfds) ? true : false; |
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| 246 | e = FD_ISSET(s, &m_efds) ? true : false; |
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| 247 | } |
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| 248 | } |
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| 249 | |
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| 250 | |
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| 251 | void SocketHandler::Set(SOCKET s,bool bRead,bool bWrite,bool bException) |
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| 252 | { |
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| 253 | DEB( fprintf(stderr, "Set(%d, %s, %s, %s)\n", s, bRead ? "true" : "false", bWrite ? "true" : "false", bException ? "true" : "false");) |
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| 254 | if (s >= 0) |
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| 255 | { |
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| 256 | if (bRead) |
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| 257 | { |
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| 258 | if (!FD_ISSET(s, &m_rfds)) |
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| 259 | { |
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| 260 | FD_SET(s, &m_rfds); |
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| 261 | } |
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| 262 | } |
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| 263 | else |
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| 264 | { |
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| 265 | FD_CLR(s, &m_rfds); |
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| 266 | } |
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| 267 | if (bWrite) |
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| 268 | { |
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| 269 | if (!FD_ISSET(s, &m_wfds)) |
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| 270 | { |
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| 271 | FD_SET(s, &m_wfds); |
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| 272 | } |
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| 273 | } |
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| 274 | else |
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| 275 | { |
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| 276 | FD_CLR(s, &m_wfds); |
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| 277 | } |
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| 278 | if (bException) |
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| 279 | { |
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| 280 | if (!FD_ISSET(s, &m_efds)) |
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| 281 | { |
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| 282 | FD_SET(s, &m_efds); |
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| 283 | } |
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| 284 | } |
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| 285 | else |
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| 286 | { |
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| 287 | FD_CLR(s, &m_efds); |
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| 288 | } |
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| 289 | } |
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| 290 | } |
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| 291 | |
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| 292 | |
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| 293 | int SocketHandler::Select(long sec,long usec) |
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| 294 | { |
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| 295 | struct timeval tv; |
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| 296 | tv.tv_sec = sec; |
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| 297 | tv.tv_usec = usec; |
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| 298 | return Select(&tv); |
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| 299 | } |
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| 300 | |
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| 301 | |
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| 302 | int SocketHandler::Select() |
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| 303 | { |
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| 304 | if (!m_fds_callonconnect.empty() || |
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| 305 | #ifdef ENABLE_DETACH |
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| 306 | (!m_slave && !m_fds_detach.empty()) || |
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| 307 | #endif |
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| 308 | !m_fds_timeout.empty() || |
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| 309 | !m_fds_retry.empty() || |
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| 310 | !m_fds_close.empty() || |
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| 311 | !m_fds_erase.empty()) |
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| 312 | { |
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| 313 | return Select(0, 200000); |
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| 314 | } |
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| 315 | return Select(NULL); |
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| 316 | } |
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| 317 | |
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| 318 | |
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| 319 | int SocketHandler::Select(struct timeval *tsel) |
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| 320 | { |
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| 321 | size_t ignore = 0; |
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| 322 | while (m_add.size() > ignore) |
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| 323 | { |
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| 324 | if (m_sockets.size() >= FD_SETSIZE) |
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| 325 | { |
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| 326 | LogError(NULL, "Select", (int)m_sockets.size(), "FD_SETSIZE reached", LOG_LEVEL_WARNING); |
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| 327 | break; |
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| 328 | } |
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| 329 | socket_m::iterator it = m_add.begin(); |
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| 330 | SOCKET s = it -> first; |
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| 331 | Socket *p = it -> second; |
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| 332 | DEB( fprintf(stderr, "Trying to add fd %d, m_add.size() %d, ignore %d\n", (int)s, (int)m_add.size(), (int)ignore);) |
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| 333 | // |
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| 334 | if (m_sockets.find(p -> GetSocket()) != m_sockets.end()) |
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| 335 | { |
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| 336 | LogError(p, "Add", (int)p -> GetSocket(), "Attempt to add socket already in controlled queue", LOG_LEVEL_FATAL); |
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| 337 | // %! it's a dup, don't add to delete queue, just ignore it |
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| 338 | m_delete.push_back(p); |
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| 339 | m_add.erase(it); |
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| 340 | // ignore++; |
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| 341 | continue; |
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| 342 | } |
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| 343 | if (!p -> CloseAndDelete()) |
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| 344 | { |
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| 345 | StreamSocket *scp = dynamic_cast<StreamSocket *>(p); |
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| 346 | if (scp && scp -> Connecting()) // 'Open' called before adding socket |
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| 347 | { |
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| 348 | Set(s,false,true); |
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| 349 | } |
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| 350 | else |
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| 351 | { |
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| 352 | TcpSocket *tcp = dynamic_cast<TcpSocket *>(p); |
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| 353 | bool bWrite = tcp ? tcp -> GetOutputLength() != 0 : false; |
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| 354 | if (p -> IsDisableRead()) |
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| 355 | { |
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| 356 | Set(s, false, bWrite); |
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| 357 | } |
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| 358 | else |
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| 359 | { |
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| 360 | Set(s, true, bWrite); |
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| 361 | } |
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| 362 | } |
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| 363 | m_maxsock = (s > m_maxsock) ? s : m_maxsock; |
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| 364 | } |
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| 365 | else |
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| 366 | { |
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| 367 | LogError(p, "Add", (int)p -> GetSocket(), "Trying to add socket with SetCloseAndDelete() true", LOG_LEVEL_WARNING); |
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| 368 | } |
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| 369 | // only add to m_fds (process fd_set events) if |
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| 370 | // slave handler and detached/detaching socket |
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| 371 | // master handler and non-detached socket |
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| 372 | #ifdef ENABLE_DETACH |
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| 373 | if (!(m_slave ^ p -> IsDetach())) |
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| 374 | #endif |
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| 375 | { |
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| 376 | m_fds.push_back(s); |
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| 377 | } |
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| 378 | m_sockets[s] = p; |
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| 379 | // |
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| 380 | m_add.erase(it); |
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| 381 | } |
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| 382 | #ifdef MACOSX |
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| 383 | fd_set rfds; |
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| 384 | fd_set wfds; |
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| 385 | fd_set efds; |
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| 386 | FD_COPY(&m_rfds, &rfds); |
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| 387 | FD_COPY(&m_wfds, &wfds); |
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| 388 | FD_COPY(&m_efds, &efds); |
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| 389 | #else |
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| 390 | fd_set rfds = m_rfds; |
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| 391 | fd_set wfds = m_wfds; |
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| 392 | fd_set efds = m_efds; |
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| 393 | #endif |
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| 394 | int n; |
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| 395 | if (m_b_use_mutex) |
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| 396 | { |
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| 397 | m_mutex.Unlock(); |
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| 398 | n = select( (int)(m_maxsock + 1),&rfds,&wfds,&efds,tsel); |
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| 399 | m_mutex.Lock(); |
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| 400 | } |
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| 401 | else |
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| 402 | { |
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| 403 | n = select( (int)(m_maxsock + 1),&rfds,&wfds,&efds,tsel); |
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| 404 | } |
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| 405 | if (n == -1) |
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| 406 | { |
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| 407 | /* |
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| 408 | EBADF An invalid file descriptor was given in one of the sets. |
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| 409 | EINTR A non blocked signal was caught. |
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| 410 | EINVAL n is negative. Or struct timeval contains bad time values (<0). |
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| 411 | ENOMEM select was unable to allocate memory for internal tables. |
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| 412 | */ |
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| 413 | if (Errno != m_preverror || m_errcnt++ % 10000 == 0) |
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| 414 | { |
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| 415 | LogError(NULL, "select", Errno, StrError(Errno)); |
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| 416 | DEB( fprintf(stderr, "m_maxsock: %d\n", m_maxsock); |
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| 417 | fprintf(stderr, "%s\n", Errno == EINVAL ? "EINVAL" : |
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| 418 | Errno == EINTR ? "EINTR" : |
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| 419 | Errno == EBADF ? "EBADF" : |
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| 420 | Errno == ENOMEM ? "ENOMEM" : "<another>"); |
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| 421 | // test bad fd |
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| 422 | for (SOCKET i = 0; i <= m_maxsock; i++) |
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| 423 | { |
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| 424 | bool t = false; |
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| 425 | FD_ZERO(&rfds); |
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| 426 | FD_ZERO(&wfds); |
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| 427 | FD_ZERO(&efds); |
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| 428 | if (FD_ISSET(i, &m_rfds)) |
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| 429 | { |
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| 430 | FD_SET(i, &rfds); |
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| 431 | t = true; |
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| 432 | } |
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| 433 | if (FD_ISSET(i, &m_wfds)) |
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| 434 | { |
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| 435 | FD_SET(i, &wfds); |
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| 436 | t = true; |
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| 437 | } |
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| 438 | if (FD_ISSET(i, &m_efds)) |
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| 439 | { |
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| 440 | FD_SET(i, &efds); |
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| 441 | t = true; |
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| 442 | } |
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| 443 | if (t && m_sockets.find(i) == m_sockets.end()) |
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| 444 | { |
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| 445 | fprintf(stderr, "Bad fd in fd_set: %d\n", i); |
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| 446 | } |
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| 447 | } |
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| 448 | ) // DEB |
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| 449 | m_preverror = Errno; |
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| 450 | } |
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| 451 | /// \todo rebuild fd_set's from active sockets list (m_sockets) here |
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| 452 | } |
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| 453 | else |
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| 454 | if (!n) |
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| 455 | { |
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| 456 | m_preverror = -1; |
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| 457 | } |
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| 458 | else |
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| 459 | if (n > 0) |
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| 460 | { |
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| 461 | for (socket_v::iterator it2 = m_fds.begin(); it2 != m_fds.end() && n; it2++) |
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| 462 | { |
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| 463 | SOCKET i = *it2; |
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| 464 | if (FD_ISSET(i, &rfds)) |
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| 465 | { |
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| 466 | socket_m::iterator itmp = m_sockets.find(i); |
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| 467 | if (itmp != m_sockets.end()) // found |
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| 468 | { |
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| 469 | Socket *p = itmp -> second; |
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| 470 | // new SSL negotiate method |
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| 471 | #ifdef HAVE_OPENSSL |
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| 472 | if (p -> IsSSLNegotiate()) |
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| 473 | { |
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| 474 | p -> SSLNegotiate(); |
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| 475 | } |
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| 476 | else |
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| 477 | #endif |
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| 478 | { |
|---|
| 479 | p -> OnRead(); |
|---|
| 480 | } |
|---|
| 481 | } |
|---|
| 482 | else |
|---|
| 483 | { |
|---|
| 484 | LogError(NULL, "GetSocket/handler/1", (int)i, "Did not find expected socket using file descriptor", LOG_LEVEL_WARNING); |
|---|
| 485 | } |
|---|
| 486 | n--; |
|---|
| 487 | } |
|---|
| 488 | if (FD_ISSET(i, &wfds)) |
|---|
| 489 | { |
|---|
| 490 | socket_m::iterator itmp = m_sockets.find(i); |
|---|
| 491 | if (itmp != m_sockets.end()) // found |
|---|
| 492 | { |
|---|
| 493 | Socket *p = itmp -> second; |
|---|
| 494 | // new SSL negotiate method |
|---|
| 495 | #ifdef HAVE_OPENSSL |
|---|
| 496 | if (p -> IsSSLNegotiate()) |
|---|
| 497 | { |
|---|
| 498 | p -> SSLNegotiate(); |
|---|
| 499 | } |
|---|
| 500 | else |
|---|
| 501 | #endif |
|---|
| 502 | { |
|---|
| 503 | p -> OnWrite(); |
|---|
| 504 | } |
|---|
| 505 | } |
|---|
| 506 | else |
|---|
| 507 | { |
|---|
| 508 | LogError(NULL, "GetSocket/handler/2", (int)i, "Did not find expected socket using file descriptor", LOG_LEVEL_WARNING); |
|---|
| 509 | } |
|---|
| 510 | n--; |
|---|
| 511 | } |
|---|
| 512 | if (FD_ISSET(i, &efds)) |
|---|
| 513 | { |
|---|
| 514 | socket_m::iterator itmp = m_sockets.find(i); |
|---|
| 515 | if (itmp != m_sockets.end()) // found |
|---|
| 516 | { |
|---|
| 517 | Socket *p = itmp -> second; |
|---|
| 518 | p -> OnException(); |
|---|
| 519 | } |
|---|
| 520 | else |
|---|
| 521 | { |
|---|
| 522 | LogError(NULL, "GetSocket/handler/3", (int)i, "Did not find expected socket using file descriptor", LOG_LEVEL_WARNING); |
|---|
| 523 | } |
|---|
| 524 | n--; |
|---|
| 525 | } |
|---|
| 526 | } // m_fds loop |
|---|
| 527 | m_preverror = -1; |
|---|
| 528 | } // if (n > 0) |
|---|
| 529 | |
|---|
| 530 | // check CallOnConnect - EVENT |
|---|
| 531 | if (!m_fds_callonconnect.empty()) |
|---|
| 532 | { |
|---|
| 533 | socket_v tmp = m_fds_callonconnect; |
|---|
| 534 | for (socket_v::iterator it = tmp.begin(); it != tmp.end(); it++) |
|---|
| 535 | { |
|---|
| 536 | Socket *p = NULL; |
|---|
| 537 | { |
|---|
| 538 | socket_m::iterator itmp = m_sockets.find(*it); |
|---|
| 539 | if (itmp != m_sockets.end()) // found |
|---|
| 540 | { |
|---|
| 541 | p = itmp -> second; |
|---|
| 542 | } |
|---|
| 543 | else |
|---|
| 544 | { |
|---|
| 545 | LogError(NULL, "GetSocket/handler/4", (int)*it, "Did not find expected socket using file descriptor", LOG_LEVEL_WARNING); |
|---|
| 546 | } |
|---|
| 547 | } |
|---|
| 548 | if (p) |
|---|
| 549 | { |
|---|
| 550 | // if (p -> CallOnConnect() && p -> Ready() ) |
|---|
| 551 | { |
|---|
| 552 | p -> SetConnected(); // moved here from inside if (tcp) check below |
|---|
| 553 | #ifdef HAVE_OPENSSL |
|---|
| 554 | if (p -> IsSSL()) // SSL Enabled socket |
|---|
| 555 | p -> OnSSLConnect(); |
|---|
| 556 | else |
|---|
| 557 | #endif |
|---|
| 558 | #ifdef ENABLE_SOCKS4 |
|---|
| 559 | if (p -> Socks4()) |
|---|
| 560 | p -> OnSocks4Connect(); |
|---|
| 561 | else |
|---|
| 562 | #endif |
|---|
| 563 | { |
|---|
| 564 | TcpSocket *tcp = dynamic_cast<TcpSocket *>(p); |
|---|
| 565 | if (tcp) |
|---|
| 566 | { |
|---|
| 567 | if (tcp -> GetOutputLength()) |
|---|
| 568 | { |
|---|
| 569 | p -> OnWrite(); |
|---|
| 570 | } |
|---|
| 571 | } |
|---|
| 572 | #ifdef ENABLE_RECONNECT |
|---|
| 573 | if (tcp && tcp -> IsReconnect()) |
|---|
| 574 | p -> OnReconnect(); |
|---|
| 575 | else |
|---|
| 576 | #endif |
|---|
| 577 | { |
|---|
| 578 | // LogError(p, "Calling OnConnect", 0, "Because CallOnConnect", LOG_LEVEL_INFO); |
|---|
| 579 | p -> OnConnect(); |
|---|
| 580 | } |
|---|
| 581 | } |
|---|
| 582 | // p -> SetCallOnConnect( false ); |
|---|
| 583 | AddList(p -> GetSocket(), LIST_CALLONCONNECT, false); |
|---|
| 584 | } |
|---|
| 585 | } |
|---|
| 586 | } |
|---|
| 587 | } |
|---|
| 588 | #ifdef ENABLE_DETACH |
|---|
| 589 | // check detach of socket if master handler - EVENT |
|---|
| 590 | if (!m_slave && !m_fds_detach.empty()) |
|---|
| 591 | { |
|---|
| 592 | // %! why not using tmp list here??!? |
|---|
| 593 | for (socket_v::iterator it = m_fds_detach.begin(); it != m_fds_detach.end(); it++) |
|---|
| 594 | { |
|---|
| 595 | Socket *p = NULL; |
|---|
| 596 | { |
|---|
| 597 | socket_m::iterator itmp = m_sockets.find(*it); |
|---|
| 598 | if (itmp != m_sockets.end()) // found |
|---|
| 599 | { |
|---|
| 600 | p = itmp -> second; |
|---|
| 601 | } |
|---|
| 602 | else |
|---|
| 603 | { |
|---|
| 604 | LogError(NULL, "GetSocket/handler/5", (int)*it, "Did not find expected socket using file descriptor", LOG_LEVEL_WARNING); |
|---|
| 605 | } |
|---|
| 606 | } |
|---|
| 607 | if (p) |
|---|
| 608 | { |
|---|
| 609 | // if (p -> IsDetach()) |
|---|
| 610 | { |
|---|
| 611 | Set(p -> GetSocket(), false, false, false); |
|---|
| 612 | // After DetachSocket(), all calls to Handler() will return a reference |
|---|
| 613 | // to the new slave SocketHandler running in the new thread. |
|---|
| 614 | p -> DetachSocket(); |
|---|
| 615 | // Adding the file descriptor to m_fds_erase will now also remove the |
|---|
| 616 | // socket from the detach queue - tnx knightmad |
|---|
| 617 | m_fds_erase.push_back(p -> GetSocket()); |
|---|
| 618 | } |
|---|
| 619 | } |
|---|
| 620 | } |
|---|
| 621 | } |
|---|
| 622 | #endif |
|---|
| 623 | // check Connecting - connection timeout - conditional event |
|---|
| 624 | if (m_fds_timeout.size()) |
|---|
| 625 | { |
|---|
| 626 | time_t tnow = time(NULL); |
|---|
| 627 | if (tnow != m_tlast) |
|---|
| 628 | { |
|---|
| 629 | socket_v tmp = m_fds_timeout; |
|---|
| 630 | DEB( fprintf(stderr, "Checking %d socket(s) for timeout\n", tmp.size());) |
|---|
| 631 | for (socket_v::iterator it = tmp.begin(); it != tmp.end(); it++) |
|---|
| 632 | { |
|---|
| 633 | Socket *p = NULL; |
|---|
| 634 | { |
|---|
| 635 | socket_m::iterator itmp = m_sockets.find(*it); |
|---|
| 636 | if (itmp != m_sockets.end()) // found |
|---|
| 637 | { |
|---|
| 638 | p = itmp -> second; |
|---|
| 639 | } |
|---|
| 640 | else |
|---|
| 641 | { |
|---|
| 642 | itmp = m_add.find(*it); |
|---|
| 643 | if (itmp != m_add.end()) |
|---|
| 644 | { |
|---|
| 645 | p = itmp -> second; |
|---|
| 646 | } |
|---|
| 647 | else |
|---|
| 648 | { |
|---|
| 649 | LogError(NULL, "GetSocket/handler/6", (int)*it, "Did not find expected socket using file descriptor", LOG_LEVEL_WARNING); |
|---|
| 650 | } |
|---|
| 651 | } |
|---|
| 652 | } |
|---|
| 653 | if (p) |
|---|
| 654 | { |
|---|
| 655 | if (p -> Timeout(tnow)) |
|---|
| 656 | { |
|---|
| 657 | StreamSocket *scp = dynamic_cast<StreamSocket *>(p); |
|---|
| 658 | if (scp && scp -> Connecting()) |
|---|
| 659 | p -> OnConnectTimeout(); |
|---|
| 660 | else |
|---|
| 661 | p -> OnTimeout(); |
|---|
| 662 | p -> SetTimeout(0); |
|---|
| 663 | } |
|---|
| 664 | } |
|---|
| 665 | } |
|---|
| 666 | m_tlast = tnow; |
|---|
| 667 | } // tnow != tlast |
|---|
| 668 | } |
|---|
| 669 | // check retry client connect - EVENT |
|---|
| 670 | if (!m_fds_retry.empty()) |
|---|
| 671 | { |
|---|
| 672 | socket_v tmp = m_fds_retry; |
|---|
| 673 | for (socket_v::iterator it = tmp.begin(); it != tmp.end(); it++) |
|---|
| 674 | { |
|---|
| 675 | Socket *p = NULL; |
|---|
| 676 | { |
|---|
| 677 | socket_m::iterator itmp = m_sockets.find(*it); |
|---|
| 678 | if (itmp != m_sockets.end()) // found |
|---|
| 679 | { |
|---|
| 680 | p = itmp -> second; |
|---|
| 681 | } |
|---|
| 682 | else |
|---|
| 683 | { |
|---|
| 684 | LogError(NULL, "GetSocket/handler/7", (int)*it, "Did not find expected socket using file descriptor", LOG_LEVEL_WARNING); |
|---|
| 685 | } |
|---|
| 686 | } |
|---|
| 687 | if (p) |
|---|
| 688 | { |
|---|
| 689 | // if (p -> RetryClientConnect()) |
|---|
| 690 | { |
|---|
| 691 | TcpSocket *tcp = dynamic_cast<TcpSocket *>(p); |
|---|
| 692 | SOCKET nn = *it; //(*it3).first; |
|---|
| 693 | tcp -> SetRetryClientConnect(false); |
|---|
| 694 | DEB( fprintf(stderr, "Close() before retry client connect\n");) |
|---|
| 695 | p -> Close(); // removes from m_fds_retry |
|---|
| 696 | std::auto_ptr<SocketAddress> ad = p -> GetClientRemoteAddress(); |
|---|
| 697 | if (ad.get()) |
|---|
| 698 | { |
|---|
| 699 | tcp -> Open(*ad); |
|---|
| 700 | } |
|---|
| 701 | else |
|---|
| 702 | { |
|---|
| 703 | LogError(p, "RetryClientConnect", 0, "no address", LOG_LEVEL_ERROR); |
|---|
| 704 | } |
|---|
| 705 | Add(p); |
|---|
| 706 | m_fds_erase.push_back(nn); |
|---|
| 707 | } |
|---|
| 708 | } |
|---|
| 709 | } |
|---|
| 710 | } |
|---|
| 711 | // check close and delete - conditional event |
|---|
| 712 | if (!m_fds_close.empty()) |
|---|
| 713 | { |
|---|
| 714 | socket_v tmp = m_fds_close; |
|---|
| 715 | DEB( fprintf(stderr, "m_fds_close.size() == %d\n", (int)m_fds_close.size());) |
|---|
| 716 | for (socket_v::iterator it = tmp.begin(); it != tmp.end(); it++) |
|---|
| 717 | { |
|---|
| 718 | Socket *p = NULL; |
|---|
| 719 | { |
|---|
| 720 | socket_m::iterator itmp = m_sockets.find(*it); |
|---|
| 721 | if (itmp != m_sockets.end()) // found |
|---|
| 722 | { |
|---|
| 723 | p = itmp -> second; |
|---|
| 724 | } |
|---|
| 725 | else |
|---|
| 726 | { |
|---|
| 727 | itmp = m_add.find(*it); |
|---|
| 728 | if (itmp != m_add.end()) |
|---|
| 729 | { |
|---|
| 730 | p = itmp -> second; |
|---|
| 731 | } |
|---|
| 732 | else |
|---|
| 733 | { |
|---|
| 734 | LogError(NULL, "GetSocket/handler/8", (int)*it, "Did not find expected socket using file descriptor", LOG_LEVEL_WARNING); |
|---|
| 735 | } |
|---|
| 736 | } |
|---|
| 737 | } |
|---|
| 738 | if (p) |
|---|
| 739 | { |
|---|
| 740 | // if (p -> CloseAndDelete() ) |
|---|
| 741 | { |
|---|
| 742 | TcpSocket *tcp = dynamic_cast<TcpSocket *>(p); |
|---|
| 743 | // new graceful tcp - flush and close timeout 5s |
|---|
| 744 | if (tcp && p -> IsConnected() && tcp -> GetFlushBeforeClose() && |
|---|
| 745 | #ifdef HAVE_OPENSSL |
|---|
| 746 | !tcp -> IsSSL() && |
|---|
| 747 | #endif |
|---|
| 748 | p -> TimeSinceClose() < 5) |
|---|
| 749 | { |
|---|
| 750 | DEB( fprintf(stderr, " close(1)\n");) |
|---|
| 751 | if (tcp -> GetOutputLength()) |
|---|
| 752 | { |
|---|
| 753 | LogError(p, "Closing", (int)tcp -> GetOutputLength(), "Sending all data before closing", LOG_LEVEL_INFO); |
|---|
| 754 | } |
|---|
| 755 | else // shutdown write when output buffer is empty |
|---|
| 756 | if (!(tcp -> GetShutdown() & SHUT_WR)) |
|---|
| 757 | { |
|---|
| 758 | SOCKET nn = *it; |
|---|
| 759 | if (nn != INVALID_SOCKET && shutdown(nn, SHUT_WR) == -1) |
|---|
| 760 | { |
|---|
| 761 | LogError(p, "graceful shutdown", Errno, StrError(Errno), LOG_LEVEL_ERROR); |
|---|
| 762 | } |
|---|
| 763 | tcp -> SetShutdown(SHUT_WR); |
|---|
| 764 | } |
|---|
| 765 | } |
|---|
| 766 | else |
|---|
| 767 | #ifdef ENABLE_RECONNECT |
|---|
| 768 | if (tcp && p -> IsConnected() && tcp -> Reconnect()) |
|---|
| 769 | { |
|---|
| 770 | SOCKET nn = *it; //(*it3).first; |
|---|
| 771 | DEB( fprintf(stderr, " close(2) fd %d\n", nn);) |
|---|
| 772 | p -> SetCloseAndDelete(false); |
|---|
| 773 | tcp -> SetIsReconnect(); |
|---|
| 774 | p -> SetConnected(false); |
|---|
| 775 | DEB( fprintf(stderr, "Close() before reconnect\n");) |
|---|
| 776 | p -> Close(); // dispose of old file descriptor (Open creates a new) |
|---|
| 777 | p -> OnDisconnect(); |
|---|
| 778 | std::auto_ptr<SocketAddress> ad = p -> GetClientRemoteAddress(); |
|---|
| 779 | if (ad.get()) |
|---|
| 780 | { |
|---|
| 781 | tcp -> Open(*ad); |
|---|
| 782 | } |
|---|
| 783 | else |
|---|
| 784 | { |
|---|
| 785 | LogError(p, "Reconnect", 0, "no address", LOG_LEVEL_ERROR); |
|---|
| 786 | } |
|---|
| 787 | tcp -> ResetConnectionRetries(); |
|---|
| 788 | Add(p); |
|---|
| 789 | m_fds_erase.push_back(nn); |
|---|
| 790 | } |
|---|
| 791 | else |
|---|
| 792 | #endif |
|---|
| 793 | { |
|---|
| 794 | SOCKET nn = *it; //(*it3).first; |
|---|
| 795 | DEB( fprintf(stderr, " close(3) fd %d GetSocket() %d\n", nn, p -> GetSocket());) |
|---|
| 796 | if (tcp && p -> IsConnected() && tcp -> GetOutputLength()) |
|---|
| 797 | { |
|---|
| 798 | LogError(p, "Closing", (int)tcp -> GetOutputLength(), "Closing socket while data still left to send", LOG_LEVEL_WARNING); |
|---|
| 799 | } |
|---|
| 800 | #ifdef ENABLE_POOL |
|---|
| 801 | if (p -> Retain() && !p -> Lost()) |
|---|
| 802 | { |
|---|
| 803 | PoolSocket *p2 = new PoolSocket(*this, p); |
|---|
| 804 | p2 -> SetDeleteByHandler(); |
|---|
| 805 | Add(p2); |
|---|
| 806 | // |
|---|
| 807 | p -> SetCloseAndDelete(false); // added - remove from m_fds_close |
|---|
| 808 | } |
|---|
| 809 | else |
|---|
| 810 | #endif // ENABLE_POOL |
|---|
| 811 | { |
|---|
| 812 | Set(p -> GetSocket(),false,false,false); |
|---|
| 813 | DEB( fprintf(stderr, "Close() before OnDelete\n");) |
|---|
| 814 | p -> Close(); |
|---|
| 815 | } |
|---|
| 816 | p -> OnDelete(); |
|---|
| 817 | if (p -> DeleteByHandler()) |
|---|
| 818 | { |
|---|
| 819 | p -> SetErasedByHandler(); |
|---|
| 820 | } |
|---|
| 821 | m_fds_erase.push_back(nn); |
|---|
| 822 | } |
|---|
| 823 | } |
|---|
| 824 | } |
|---|
| 825 | } |
|---|
| 826 | } |
|---|
| 827 | |
|---|
| 828 | // check erased sockets |
|---|
| 829 | bool check_max_fd = false; |
|---|
| 830 | while (!m_fds_erase.empty()) |
|---|
| 831 | { |
|---|
| 832 | socket_v::iterator it = m_fds_erase.begin(); |
|---|
| 833 | SOCKET nn = *it; |
|---|
| 834 | #ifdef ENABLE_DETACH |
|---|
| 835 | { |
|---|
| 836 | for (socket_v::iterator it = m_fds_detach.begin(); it != m_fds_detach.end(); it++) |
|---|
| 837 | { |
|---|
| 838 | if (*it == nn) |
|---|
| 839 | { |
|---|
| 840 | m_fds_detach.erase(it); |
|---|
| 841 | break; |
|---|
| 842 | } |
|---|
| 843 | } |
|---|
| 844 | } |
|---|
| 845 | #endif |
|---|
| 846 | { |
|---|
| 847 | for (socket_v::iterator it = m_fds.begin(); it != m_fds.end(); it++) |
|---|
| 848 | { |
|---|
| 849 | if (*it == nn) |
|---|
| 850 | { |
|---|
| 851 | m_fds.erase(it); |
|---|
| 852 | break; |
|---|
| 853 | } |
|---|
| 854 | } |
|---|
| 855 | } |
|---|
| 856 | { |
|---|
| 857 | socket_m::iterator it = m_sockets.find(nn); |
|---|
| 858 | if (it != m_sockets.end()) |
|---|
| 859 | { |
|---|
| 860 | Socket *p = it -> second; |
|---|
| 861 | /* Sometimes a SocketThread class can finish its run before the master |
|---|
| 862 | sockethandler gets here. In that case, the SocketThread has set the |
|---|
| 863 | 'ErasedByHandler' flag on the socket which will make us end up with a |
|---|
| 864 | double delete on the socket instance. |
|---|
| 865 | The fix is to make sure that the master sockethandler only can delete |
|---|
| 866 | non-detached sockets, and a slave sockethandler only can delete |
|---|
| 867 | detach sockets. */ |
|---|
| 868 | if (p -> ErasedByHandler() |
|---|
| 869 | #ifdef ENABLE_DETACH |
|---|
| 870 | && !(m_slave ^ p -> IsDetached()) |
|---|
| 871 | #endif |
|---|
| 872 | ) |
|---|
| 873 | { |
|---|
| 874 | #ifdef ENABLE_TRIGGERS |
|---|
| 875 | bool again = false; |
|---|
| 876 | do |
|---|
| 877 | { |
|---|
| 878 | again = false; |
|---|
| 879 | for (std::map<int, Socket *>::iterator it = m_trigger_src.begin(); it != m_trigger_src.end(); it++) |
|---|
| 880 | { |
|---|
| 881 | int id = it -> first; |
|---|
| 882 | Socket *src = it -> second; |
|---|
| 883 | if (src == p) |
|---|
| 884 | { |
|---|
| 885 | for (std::map<Socket *, bool>::iterator it = m_trigger_dst[id].begin(); it != m_trigger_dst[id].end(); it++) |
|---|
| 886 | { |
|---|
| 887 | Socket *dst = it -> first; |
|---|
| 888 | if (Valid(dst)) |
|---|
| 889 | { |
|---|
| 890 | dst -> OnCancelled(id); |
|---|
| 891 | } |
|---|
| 892 | } |
|---|
| 893 | m_trigger_src.erase(m_trigger_src.find(id)); |
|---|
| 894 | m_trigger_dst.erase(m_trigger_dst.find(id)); |
|---|
| 895 | again = true; |
|---|
| 896 | break; |
|---|
| 897 | } |
|---|
| 898 | } |
|---|
| 899 | } while (again); |
|---|
| 900 | #endif |
|---|
| 901 | delete p; |
|---|
| 902 | } |
|---|
| 903 | m_sockets.erase(it); |
|---|
| 904 | } |
|---|
| 905 | } |
|---|
| 906 | m_fds_erase.erase(it); |
|---|
| 907 | check_max_fd = true; |
|---|
| 908 | } |
|---|
| 909 | // calculate max file descriptor for select() call |
|---|
| 910 | if (check_max_fd) |
|---|
| 911 | { |
|---|
| 912 | m_maxsock = 0; |
|---|
| 913 | for (socket_v::iterator it = m_fds.begin(); it != m_fds.end(); it++) |
|---|
| 914 | { |
|---|
| 915 | SOCKET s = *it; |
|---|
| 916 | m_maxsock = s > m_maxsock ? s : m_maxsock; |
|---|
| 917 | } |
|---|
| 918 | } |
|---|
| 919 | // remove Add's that fizzed |
|---|
| 920 | while (!m_delete.empty()) |
|---|
| 921 | { |
|---|
| 922 | std::list<Socket *>::iterator it = m_delete.begin(); |
|---|
| 923 | Socket *p = *it; |
|---|
| 924 | p -> OnDelete(); |
|---|
| 925 | m_delete.erase(it); |
|---|
| 926 | if (p -> DeleteByHandler() |
|---|
| 927 | #ifdef ENABLE_DETACH |
|---|
| 928 | && !(m_slave ^ p -> IsDetached()) |
|---|
| 929 | #endif |
|---|
| 930 | ) |
|---|
| 931 | { |
|---|
| 932 | p -> SetErasedByHandler(); |
|---|
| 933 | #ifdef ENABLE_TRIGGERS |
|---|
| 934 | bool again = false; |
|---|
| 935 | do |
|---|
| 936 | { |
|---|
| 937 | again = false; |
|---|
| 938 | for (std::map<int, Socket *>::iterator it = m_trigger_src.begin(); it != m_trigger_src.end(); it++) |
|---|
| 939 | { |
|---|
| 940 | int id = it -> first; |
|---|
| 941 | Socket *src = it -> second; |
|---|
| 942 | if (src == p) |
|---|
| 943 | { |
|---|
| 944 | for (std::map<Socket *, bool>::iterator it = m_trigger_dst[id].begin(); it != m_trigger_dst[id].end(); it++) |
|---|
| 945 | { |
|---|
| 946 | Socket *dst = it -> first; |
|---|
| 947 | if (Valid(dst)) |
|---|
| 948 | { |
|---|
| 949 | dst -> OnCancelled(id); |
|---|
| 950 | } |
|---|
| 951 | } |
|---|
| 952 | m_trigger_src.erase(m_trigger_src.find(id)); |
|---|
| 953 | m_trigger_dst.erase(m_trigger_dst.find(id)); |
|---|
| 954 | again = true; |
|---|
| 955 | break; |
|---|
| 956 | } |
|---|
| 957 | } |
|---|
| 958 | } while (again); |
|---|
| 959 | #endif |
|---|
| 960 | delete p; |
|---|
| 961 | } |
|---|
| 962 | } |
|---|
| 963 | return n; |
|---|
| 964 | } |
|---|
| 965 | |
|---|
| 966 | |
|---|
| 967 | #ifdef ENABLE_RESOLVER |
|---|
| 968 | bool SocketHandler::Resolving(Socket *p0) |
|---|
| 969 | { |
|---|
| 970 | std::map<Socket *, bool>::iterator it = m_resolve_q.find(p0); |
|---|
| 971 | return it != m_resolve_q.end(); |
|---|
| 972 | } |
|---|
| 973 | #endif |
|---|
| 974 | |
|---|
| 975 | |
|---|
| 976 | bool SocketHandler::Valid(Socket *p0) |
|---|
| 977 | { |
|---|
| 978 | for (socket_m::iterator it = m_sockets.begin(); it != m_sockets.end(); it++) |
|---|
| 979 | { |
|---|
| 980 | Socket *p = it -> second; |
|---|
| 981 | if (p0 == p) |
|---|
| 982 | return true; |
|---|
| 983 | } |
|---|
| 984 | return false; |
|---|
| 985 | } |
|---|
| 986 | |
|---|
| 987 | |
|---|
| 988 | bool SocketHandler::OkToAccept(Socket *) |
|---|
| 989 | { |
|---|
| 990 | return true; |
|---|
| 991 | } |
|---|
| 992 | |
|---|
| 993 | |
|---|
| 994 | size_t SocketHandler::GetCount() |
|---|
| 995 | { |
|---|
| 996 | /* |
|---|
| 997 | printf(" m_sockets : %d\n", m_sockets.size()); |
|---|
| 998 | printf(" m_add : %d\n", m_add.size()); |
|---|
| 999 | printf(" m_delete : %d\n", m_delete.size()); |
|---|
| 1000 | */ |
|---|
| 1001 | return m_sockets.size() + m_add.size() + m_delete.size(); |
|---|
| 1002 | } |
|---|
| 1003 | |
|---|
| 1004 | |
|---|
| 1005 | #ifdef ENABLE_SOCKS4 |
|---|
| 1006 | void SocketHandler::SetSocks4Host(ipaddr_t a) |
|---|
| 1007 | { |
|---|
| 1008 | m_socks4_host = a; |
|---|
| 1009 | } |
|---|
| 1010 | |
|---|
| 1011 | |
|---|
| 1012 | void SocketHandler::SetSocks4Host(const std::string& host) |
|---|
| 1013 | { |
|---|
| 1014 | Utility::u2ip(host, m_socks4_host); |
|---|
| 1015 | } |
|---|
| 1016 | |
|---|
| 1017 | |
|---|
| 1018 | void SocketHandler::SetSocks4Port(port_t port) |
|---|
| 1019 | { |
|---|
| 1020 | m_socks4_port = port; |
|---|
| 1021 | } |
|---|
| 1022 | |
|---|
| 1023 | |
|---|
| 1024 | void SocketHandler::SetSocks4Userid(const std::string& id) |
|---|
| 1025 | { |
|---|
| 1026 | m_socks4_userid = id; |
|---|
| 1027 | } |
|---|
| 1028 | #endif |
|---|
| 1029 | |
|---|
| 1030 | |
|---|
| 1031 | #ifdef ENABLE_RESOLVER |
|---|
| 1032 | int SocketHandler::Resolve(Socket *p,const std::string& host,port_t port) |
|---|
| 1033 | { |
|---|
| 1034 | // check cache |
|---|
| 1035 | ResolvSocket *resolv = new ResolvSocket(*this, p, host, port); |
|---|
| 1036 | resolv -> SetId(++m_resolv_id); |
|---|
| 1037 | resolv -> SetDeleteByHandler(); |
|---|
| 1038 | ipaddr_t local; |
|---|
| 1039 | Utility::u2ip("127.0.0.1", local); |
|---|
| 1040 | if (!resolv -> Open(local, m_resolver_port)) |
|---|
| 1041 | { |
|---|
| 1042 | LogError(resolv, "Resolve", -1, "Can't connect to local resolve server", LOG_LEVEL_FATAL); |
|---|
| 1043 | } |
|---|
| 1044 | Add(resolv); |
|---|
| 1045 | m_resolve_q[p] = true; |
|---|
| 1046 | DEB( fprintf(stderr, " *** Resolve '%s:%d' id#%d m_resolve_q size: %d p: %p\n", host.c_str(), port, resolv -> GetId(), m_resolve_q.size(), p);) |
|---|
| 1047 | return resolv -> GetId(); |
|---|
| 1048 | } |
|---|
| 1049 | |
|---|
| 1050 | |
|---|
| 1051 | #ifdef ENABLE_IPV6 |
|---|
| 1052 | int SocketHandler::Resolve6(Socket *p,const std::string& host,port_t port) |
|---|
| 1053 | { |
|---|
| 1054 | // check cache |
|---|
| 1055 | ResolvSocket *resolv = new ResolvSocket(*this, p, host, port, true); |
|---|
| 1056 | resolv -> SetId(++m_resolv_id); |
|---|
| 1057 | resolv -> SetDeleteByHandler(); |
|---|
| 1058 | ipaddr_t local; |
|---|
| 1059 | Utility::u2ip("127.0.0.1", local); |
|---|
| 1060 | if (!resolv -> Open(local, m_resolver_port)) |
|---|
| 1061 | { |
|---|
| 1062 | LogError(resolv, "Resolve", -1, "Can't connect to local resolve server", LOG_LEVEL_FATAL); |
|---|
| 1063 | } |
|---|
| 1064 | Add(resolv); |
|---|
| 1065 | m_resolve_q[p] = true; |
|---|
| 1066 | return resolv -> GetId(); |
|---|
| 1067 | } |
|---|
| 1068 | #endif |
|---|
| 1069 | |
|---|
| 1070 | |
|---|
| 1071 | int SocketHandler::Resolve(Socket *p,ipaddr_t a) |
|---|
| 1072 | { |
|---|
| 1073 | // check cache |
|---|
| 1074 | ResolvSocket *resolv = new ResolvSocket(*this, p, a); |
|---|
| 1075 | resolv -> SetId(++m_resolv_id); |
|---|
| 1076 | resolv -> SetDeleteByHandler(); |
|---|
| 1077 | ipaddr_t local; |
|---|
| 1078 | Utility::u2ip("127.0.0.1", local); |
|---|
| 1079 | if (!resolv -> Open(local, m_resolver_port)) |
|---|
| 1080 | { |
|---|
| 1081 | LogError(resolv, "Resolve", -1, "Can't connect to local resolve server", LOG_LEVEL_FATAL); |
|---|
| 1082 | } |
|---|
| 1083 | Add(resolv); |
|---|
| 1084 | m_resolve_q[p] = true; |
|---|
| 1085 | return resolv -> GetId(); |
|---|
| 1086 | } |
|---|
| 1087 | |
|---|
| 1088 | |
|---|
| 1089 | #ifdef ENABLE_IPV6 |
|---|
| 1090 | int SocketHandler::Resolve(Socket *p,in6_addr& a) |
|---|
| 1091 | { |
|---|
| 1092 | // check cache |
|---|
| 1093 | ResolvSocket *resolv = new ResolvSocket(*this, p, a); |
|---|
| 1094 | resolv -> SetId(++m_resolv_id); |
|---|
| 1095 | resolv -> SetDeleteByHandler(); |
|---|
| 1096 | ipaddr_t local; |
|---|
| 1097 | Utility::u2ip("127.0.0.1", local); |
|---|
| 1098 | if (!resolv -> Open(local, m_resolver_port)) |
|---|
| 1099 | { |
|---|
| 1100 | LogError(resolv, "Resolve", -1, "Can't connect to local resolve server", LOG_LEVEL_FATAL); |
|---|
| 1101 | } |
|---|
| 1102 | Add(resolv); |
|---|
| 1103 | m_resolve_q[p] = true; |
|---|
| 1104 | return resolv -> GetId(); |
|---|
| 1105 | } |
|---|
| 1106 | #endif |
|---|
| 1107 | |
|---|
| 1108 | |
|---|
| 1109 | void SocketHandler::EnableResolver(port_t port) |
|---|
| 1110 | { |
|---|
| 1111 | if (!m_resolver) |
|---|
| 1112 | { |
|---|
| 1113 | m_resolver_port = port; |
|---|
| 1114 | m_resolver = new ResolvServer(port); |
|---|
| 1115 | } |
|---|
| 1116 | } |
|---|
| 1117 | |
|---|
| 1118 | |
|---|
| 1119 | bool SocketHandler::ResolverReady() |
|---|
| 1120 | { |
|---|
| 1121 | return m_resolver ? m_resolver -> Ready() : false; |
|---|
| 1122 | } |
|---|
| 1123 | #endif // ENABLE_RESOLVER |
|---|
| 1124 | |
|---|
| 1125 | |
|---|
| 1126 | #ifdef ENABLE_SOCKS4 |
|---|
| 1127 | void SocketHandler::SetSocks4TryDirect(bool x) |
|---|
| 1128 | { |
|---|
| 1129 | m_bTryDirect = x; |
|---|
| 1130 | } |
|---|
| 1131 | |
|---|
| 1132 | |
|---|
| 1133 | ipaddr_t SocketHandler::GetSocks4Host() |
|---|
| 1134 | { |
|---|
| 1135 | return m_socks4_host; |
|---|
| 1136 | } |
|---|
| 1137 | |
|---|
| 1138 | |
|---|
| 1139 | port_t SocketHandler::GetSocks4Port() |
|---|
| 1140 | { |
|---|
| 1141 | return m_socks4_port; |
|---|
| 1142 | } |
|---|
| 1143 | |
|---|
| 1144 | |
|---|
| 1145 | const std::string& SocketHandler::GetSocks4Userid() |
|---|
| 1146 | { |
|---|
| 1147 | return m_socks4_userid; |
|---|
| 1148 | } |
|---|
| 1149 | |
|---|
| 1150 | |
|---|
| 1151 | bool SocketHandler::Socks4TryDirect() |
|---|
| 1152 | { |
|---|
| 1153 | return m_bTryDirect; |
|---|
| 1154 | } |
|---|
| 1155 | #endif |
|---|
| 1156 | |
|---|
| 1157 | |
|---|
| 1158 | #ifdef ENABLE_RESOLVER |
|---|
| 1159 | bool SocketHandler::ResolverEnabled() |
|---|
| 1160 | { |
|---|
| 1161 | return m_resolver ? true : false; |
|---|
| 1162 | } |
|---|
| 1163 | |
|---|
| 1164 | |
|---|
| 1165 | port_t SocketHandler::GetResolverPort() |
|---|
| 1166 | { |
|---|
| 1167 | return m_resolver_port; |
|---|
| 1168 | } |
|---|
| 1169 | #endif // ENABLE_RESOLVER |
|---|
| 1170 | |
|---|
| 1171 | |
|---|
| 1172 | #ifdef ENABLE_POOL |
|---|
| 1173 | ISocketHandler::PoolSocket *SocketHandler::FindConnection(int type,const std::string& protocol,SocketAddress& ad) |
|---|
| 1174 | { |
|---|
| 1175 | for (socket_m::iterator it = m_sockets.begin(); it != m_sockets.end() && !m_sockets.empty(); it++) |
|---|
| 1176 | { |
|---|
| 1177 | PoolSocket *pools = dynamic_cast<PoolSocket *>(it -> second); |
|---|
| 1178 | if (pools) |
|---|
| 1179 | { |
|---|
| 1180 | if (pools -> GetSocketType() == type && |
|---|
| 1181 | pools -> GetSocketProtocol() == protocol && |
|---|
| 1182 | // %! pools -> GetClientRemoteAddress() && |
|---|
| 1183 | *pools -> GetClientRemoteAddress() == ad) |
|---|
| 1184 | { |
|---|
| 1185 | m_sockets.erase(it); |
|---|
| 1186 | pools -> SetRetain(); // avoid Close in Socket destructor |
|---|
| 1187 | return pools; // Caller is responsible that this socket is deleted |
|---|
| 1188 | } |
|---|
| 1189 | } |
|---|
| 1190 | } |
|---|
| 1191 | return NULL; |
|---|
| 1192 | } |
|---|
| 1193 | |
|---|
| 1194 | |
|---|
| 1195 | void SocketHandler::EnablePool(bool x) |
|---|
| 1196 | { |
|---|
| 1197 | m_b_enable_pool = x; |
|---|
| 1198 | } |
|---|
| 1199 | |
|---|
| 1200 | |
|---|
| 1201 | bool SocketHandler::PoolEnabled() |
|---|
| 1202 | { |
|---|
| 1203 | return m_b_enable_pool; |
|---|
| 1204 | } |
|---|
| 1205 | #endif |
|---|
| 1206 | |
|---|
| 1207 | |
|---|
| 1208 | void SocketHandler::Remove(Socket *p) |
|---|
| 1209 | { |
|---|
| 1210 | #ifdef ENABLE_RESOLVER |
|---|
| 1211 | std::map<Socket *, bool>::iterator it4 = m_resolve_q.find(p); |
|---|
| 1212 | if (it4 != m_resolve_q.end()) |
|---|
| 1213 | m_resolve_q.erase(it4); |
|---|
| 1214 | #endif |
|---|
| 1215 | if (p -> ErasedByHandler()) |
|---|
| 1216 | { |
|---|
| 1217 | return; |
|---|
| 1218 | } |
|---|
| 1219 | for (socket_m::iterator it = m_sockets.begin(); it != m_sockets.end(); it++) |
|---|
| 1220 | { |
|---|
| 1221 | if (it -> second == p) |
|---|
| 1222 | { |
|---|
| 1223 | LogError(p, "Remove", -1, "Socket destructor called while still in use", LOG_LEVEL_WARNING); |
|---|
| 1224 | m_sockets.erase(it); |
|---|
| 1225 | return; |
|---|
| 1226 | } |
|---|
| 1227 | } |
|---|
| 1228 | for (socket_m::iterator it2 = m_add.begin(); it2 != m_add.end(); it2++) |
|---|
| 1229 | { |
|---|
| 1230 | if ((*it2).second == p) |
|---|
| 1231 | { |
|---|
| 1232 | LogError(p, "Remove", -2, "Socket destructor called while still in use", LOG_LEVEL_WARNING); |
|---|
| 1233 | m_add.erase(it2); |
|---|
| 1234 | return; |
|---|
| 1235 | } |
|---|
| 1236 | } |
|---|
| 1237 | for (std::list<Socket *>::iterator it3 = m_delete.begin(); it3 != m_delete.end(); it3++) |
|---|
| 1238 | { |
|---|
| 1239 | if (*it3 == p) |
|---|
| 1240 | { |
|---|
| 1241 | LogError(p, "Remove", -3, "Socket destructor called while still in use", LOG_LEVEL_WARNING); |
|---|
| 1242 | m_delete.erase(it3); |
|---|
| 1243 | return; |
|---|
| 1244 | } |
|---|
| 1245 | } |
|---|
| 1246 | } |
|---|
| 1247 | |
|---|
| 1248 | |
|---|
| 1249 | void SocketHandler::CheckSanity() |
|---|
| 1250 | { |
|---|
| 1251 | CheckList(m_fds, "active sockets"); // active sockets |
|---|
| 1252 | CheckList(m_fds_erase, "sockets to be erased"); // should always be empty anyway |
|---|
| 1253 | CheckList(m_fds_callonconnect, "checklist CallOnConnect"); |
|---|
| 1254 | #ifdef ENABLE_DETACH |
|---|
| 1255 | CheckList(m_fds_detach, "checklist Detach"); |
|---|
| 1256 | #endif |
|---|
| 1257 | CheckList(m_fds_timeout, "checklist Timeout"); |
|---|
| 1258 | CheckList(m_fds_retry, "checklist retry client connect"); |
|---|
| 1259 | CheckList(m_fds_close, "checklist close and delete"); |
|---|
| 1260 | } |
|---|
| 1261 | |
|---|
| 1262 | |
|---|
| 1263 | void SocketHandler::CheckList(socket_v& ref,const std::string& listname) |
|---|
| 1264 | { |
|---|
| 1265 | for (socket_v::iterator it = ref.begin(); it != ref.end(); it++) |
|---|
| 1266 | { |
|---|
| 1267 | SOCKET s = *it; |
|---|
| 1268 | if (m_sockets.find(s) != m_sockets.end()) |
|---|
| 1269 | continue; |
|---|
| 1270 | if (m_add.find(s) != m_add.end()) |
|---|
| 1271 | continue; |
|---|
| 1272 | bool found = false; |
|---|
| 1273 | for (std::list<Socket *>::iterator it = m_delete.begin(); it != m_delete.end(); it++) |
|---|
| 1274 | { |
|---|
| 1275 | Socket *p = *it; |
|---|
| 1276 | if (p -> GetSocket() == s) |
|---|
| 1277 | { |
|---|
| 1278 | found = true; |
|---|
| 1279 | break; |
|---|
| 1280 | } |
|---|
| 1281 | } |
|---|
| 1282 | if (!found) |
|---|
| 1283 | { |
|---|
| 1284 | fprintf(stderr, "CheckList failed for \"%s\": fd %d\n", listname.c_str(), s); |
|---|
| 1285 | } |
|---|
| 1286 | } |
|---|
| 1287 | } |
|---|
| 1288 | |
|---|
| 1289 | |
|---|
| 1290 | void SocketHandler::AddList(SOCKET s,list_t which_one,bool add) |
|---|
| 1291 | { |
|---|
| 1292 | if (s == INVALID_SOCKET) |
|---|
| 1293 | { |
|---|
| 1294 | DEB( fprintf(stderr, "AddList: invalid_socket\n");) |
|---|
| 1295 | return; |
|---|
| 1296 | } |
|---|
| 1297 | socket_v& ref = |
|---|
| 1298 | (which_one == LIST_CALLONCONNECT) ? m_fds_callonconnect : |
|---|
| 1299 | #ifdef ENABLE_DETACH |
|---|
| 1300 | (which_one == LIST_DETACH) ? m_fds_detach : |
|---|
| 1301 | #endif |
|---|
| 1302 | (which_one == LIST_TIMEOUT) ? m_fds_timeout : |
|---|
| 1303 | (which_one == LIST_RETRY) ? m_fds_retry : |
|---|
| 1304 | (which_one == LIST_CLOSE) ? m_fds_close : m_fds_close; |
|---|
| 1305 | if (add) |
|---|
| 1306 | { |
|---|
| 1307 | #ifdef ENABLE_DETACH |
|---|
| 1308 | DEB( fprintf(stderr, "AddList; %5d: %s: %s\n", s, (which_one == LIST_CALLONCONNECT) ? "CallOnConnect" : |
|---|
| 1309 | (which_one == LIST_DETACH) ? "Detach" : |
|---|
| 1310 | (which_one == LIST_TIMEOUT) ? "Timeout" : |
|---|
| 1311 | (which_one == LIST_RETRY) ? "Retry" : |
|---|
| 1312 | (which_one == LIST_CLOSE) ? "Close" : "<undef>", |
|---|
| 1313 | add ? "Add" : "Remove");) |
|---|
| 1314 | #else |
|---|
| 1315 | DEB( fprintf(stderr, "AddList; %5d: %s: %s\n", s, (which_one == LIST_CALLONCONNECT) ? "CallOnConnect" : |
|---|
| 1316 | (which_one == LIST_TIMEOUT) ? "Timeout" : |
|---|
| 1317 | (which_one == LIST_RETRY) ? "Retry" : |
|---|
| 1318 | (which_one == LIST_CLOSE) ? "Close" : "<undef>", |
|---|
| 1319 | add ? "Add" : "Remove");) |
|---|
| 1320 | #endif |
|---|
| 1321 | } |
|---|
| 1322 | if (add) |
|---|
| 1323 | { |
|---|
| 1324 | for (socket_v::iterator it = ref.begin(); it != ref.end(); it++) |
|---|
| 1325 | { |
|---|
| 1326 | if (*it == s) // already there |
|---|
| 1327 | { |
|---|
| 1328 | return; |
|---|
| 1329 | } |
|---|
| 1330 | } |
|---|
| 1331 | ref.push_back(s); |
|---|
| 1332 | return; |
|---|
| 1333 | } |
|---|
| 1334 | // remove |
|---|
| 1335 | for (socket_v::iterator it = ref.begin(); it != ref.end(); it++) |
|---|
| 1336 | { |
|---|
| 1337 | if (*it == s) |
|---|
| 1338 | { |
|---|
| 1339 | ref.erase(it); |
|---|
| 1340 | break; |
|---|
| 1341 | } |
|---|
| 1342 | } |
|---|
| 1343 | //DEB( fprintf(stderr, "/AddList\n");) |
|---|
| 1344 | } |
|---|
| 1345 | |
|---|
| 1346 | |
|---|
| 1347 | #ifdef ENABLE_TRIGGERS |
|---|
| 1348 | int SocketHandler::TriggerID(Socket *src) |
|---|
| 1349 | { |
|---|
| 1350 | int id = m_next_trigger_id++; |
|---|
| 1351 | m_trigger_src[id] = src; |
|---|
| 1352 | return id; |
|---|
| 1353 | } |
|---|
| 1354 | |
|---|
| 1355 | |
|---|
| 1356 | bool SocketHandler::Subscribe(int id, Socket *dst) |
|---|
| 1357 | { |
|---|
| 1358 | if (m_trigger_src.find(id) != m_trigger_src.end()) |
|---|
| 1359 | { |
|---|
| 1360 | std::map<Socket *, bool>::iterator it = m_trigger_dst[id].find(dst); |
|---|
| 1361 | if (it != m_trigger_dst[id].end()) |
|---|
| 1362 | { |
|---|
| 1363 | m_trigger_dst[id][dst] = true; |
|---|
| 1364 | return true; |
|---|
| 1365 | } |
|---|
| 1366 | LogError(dst, "Subscribe", id, "Already subscribed", LOG_LEVEL_INFO); |
|---|
| 1367 | return false; |
|---|
| 1368 | } |
|---|
| 1369 | LogError(dst, "Subscribe", id, "Trigger id not found", LOG_LEVEL_INFO); |
|---|
| 1370 | return false; |
|---|
| 1371 | } |
|---|
| 1372 | |
|---|
| 1373 | |
|---|
| 1374 | bool SocketHandler::Unsubscribe(int id, Socket *dst) |
|---|
| 1375 | { |
|---|
| 1376 | if (m_trigger_src.find(id) != m_trigger_src.end()) |
|---|
| 1377 | { |
|---|
| 1378 | std::map<Socket *, bool>::iterator it = m_trigger_dst[id].find(dst); |
|---|
| 1379 | if (it != m_trigger_dst[id].end()) |
|---|
| 1380 | { |
|---|
| 1381 | m_trigger_dst[id].erase(it); |
|---|
| 1382 | return true; |
|---|
| 1383 | } |
|---|
| 1384 | LogError(dst, "Unsubscribe", id, "Not subscribed", LOG_LEVEL_INFO); |
|---|
| 1385 | return false; |
|---|
| 1386 | } |
|---|
| 1387 | LogError(dst, "Unsubscribe", id, "Trigger id not found", LOG_LEVEL_INFO); |
|---|
| 1388 | return false; |
|---|
| 1389 | } |
|---|
| 1390 | |
|---|
| 1391 | |
|---|
| 1392 | void SocketHandler::Trigger(int id, Socket::TriggerData& data, bool erase) |
|---|
| 1393 | { |
|---|
| 1394 | if (m_trigger_src.find(id) != m_trigger_src.end()) |
|---|
| 1395 | { |
|---|
| 1396 | data.SetSource( m_trigger_src[id] ); |
|---|
| 1397 | for (std::map<Socket *, bool>::iterator it = m_trigger_dst[id].begin(); it != m_trigger_dst[id].end(); it++) |
|---|
| 1398 | { |
|---|
| 1399 | Socket *dst = it -> first; |
|---|
| 1400 | if (Valid(dst)) |
|---|
| 1401 | { |
|---|
| 1402 | dst -> OnTrigger(id, data); |
|---|
| 1403 | } |
|---|
| 1404 | } |
|---|
| 1405 | if (erase) |
|---|
| 1406 | { |
|---|
| 1407 | m_trigger_src.erase(m_trigger_src.find(id)); |
|---|
| 1408 | m_trigger_dst.erase(m_trigger_dst.find(id)); |
|---|
| 1409 | } |
|---|
| 1410 | } |
|---|
| 1411 | else |
|---|
| 1412 | { |
|---|
| 1413 | LogError(NULL, "Trigger", id, "Trigger id not found", LOG_LEVEL_INFO); |
|---|
| 1414 | } |
|---|
| 1415 | } |
|---|
| 1416 | #endif // ENABLE_TRIGGERS |
|---|
| 1417 | |
|---|
| 1418 | |
|---|
| 1419 | #ifdef SOCKETS_NAMESPACE |
|---|
| 1420 | } |
|---|
| 1421 | #endif |
|---|
| 1422 | |
|---|