diff --git a/src/netbase.cpp b/src/netbase.cpp index 22f49d2c2..b61eded65 100644 --- a/src/netbase.cpp +++ b/src/netbase.cpp @@ -1,999 +1,999 @@ // Copyright (c) 2009-2010 Satoshi Nakamoto // Copyright (c) 2009-2016 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include #include #include #include #include #include #ifndef WIN32 #include #endif #ifdef USE_POLL #include #endif #if !defined(MSG_NOSIGNAL) #define MSG_NOSIGNAL 0 #endif // Settings static RecursiveMutex cs_proxyInfos; static proxyType proxyInfo[NET_MAX] GUARDED_BY(cs_proxyInfos); static proxyType nameProxy GUARDED_BY(cs_proxyInfos); int nConnectTimeout = DEFAULT_CONNECT_TIMEOUT; bool fNameLookup = DEFAULT_NAME_LOOKUP; // Need ample time for negotiation for very slow proxies such as Tor // (milliseconds) static const int SOCKS5_RECV_TIMEOUT = 20 * 1000; static std::atomic interruptSocks5Recv(false); enum Network ParseNetwork(const std::string &net_in) { std::string net = ToLower(net_in); if (net == "ipv4") { return NET_IPV4; } if (net == "ipv6") { return NET_IPV6; } if (net == "onion") { return NET_ONION; } if (net == "tor") { LogPrintf("Warning: net name 'tor' is deprecated and will be removed " "in the future. You should use 'onion' instead.\n"); return NET_ONION; } return NET_UNROUTABLE; } std::string GetNetworkName(enum Network net) { switch (net) { case NET_IPV4: return "ipv4"; case NET_IPV6: return "ipv6"; case NET_ONION: return "onion"; default: return ""; } } static bool LookupIntern(const char *pszName, std::vector &vIP, unsigned int nMaxSolutions, bool fAllowLookup) { vIP.clear(); { CNetAddr addr; // From our perspective, onion addresses are not hostnames but rather // direct encodings of CNetAddr much like IPv4 dotted-decimal notation // or IPv6 colon-separated hextet notation. Since we can't use // getaddrinfo to decode them and it wouldn't make sense to resolve // them, we return a network address representing it instead. See // CNetAddr::SetSpecial(const std::string&) for more details. if (addr.SetSpecial(std::string(pszName))) { vIP.push_back(addr); return true; } } struct addrinfo aiHint; memset(&aiHint, 0, sizeof(struct addrinfo)); // We want a TCP port, which is a streaming socket type aiHint.ai_socktype = SOCK_STREAM; aiHint.ai_protocol = IPPROTO_TCP; // We don't care which address family (IPv4 or IPv6) is returned aiHint.ai_family = AF_UNSPEC; // If we allow lookups of hostnames, use the AI_ADDRCONFIG flag to only // return addresses whose family we have an address configured for. // // If we don't allow lookups, then use the AI_NUMERICHOST flag for // getaddrinfo to only decode numerical network addresses and suppress // hostname lookups. aiHint.ai_flags = fAllowLookup ? AI_ADDRCONFIG : AI_NUMERICHOST; struct addrinfo *aiRes = nullptr; int nErr = getaddrinfo(pszName, nullptr, &aiHint, &aiRes); if (nErr) { return false; } // Traverse the linked list starting with aiTrav, add all non-internal // IPv4,v6 addresses to vIP while respecting nMaxSolutions. struct addrinfo *aiTrav = aiRes; while (aiTrav != nullptr && (nMaxSolutions == 0 || vIP.size() < nMaxSolutions)) { CNetAddr resolved; if (aiTrav->ai_family == AF_INET) { assert(aiTrav->ai_addrlen >= sizeof(sockaddr_in)); resolved = CNetAddr(reinterpret_cast(aiTrav->ai_addr) ->sin_addr); } if (aiTrav->ai_family == AF_INET6) { assert(aiTrav->ai_addrlen >= sizeof(sockaddr_in6)); struct sockaddr_in6 *s6 = reinterpret_cast(aiTrav->ai_addr); resolved = CNetAddr(s6->sin6_addr, s6->sin6_scope_id); } // Never allow resolving to an internal address. Consider any such // result invalid. if (!resolved.IsInternal()) { vIP.push_back(resolved); } aiTrav = aiTrav->ai_next; } freeaddrinfo(aiRes); return (vIP.size() > 0); } /** * Resolve a host string to its corresponding network addresses. * * @param pszName The string representing a host. Could be a name or a numerical * IP address (IPv6 addresses in their bracketed form are * allowed). * @param[out] vIP The resulting network addresses to which the specified host * string resolved. * * @returns Whether or not the specified host string successfully resolved to * any resulting network addresses. * * @see Lookup(const char *, std::vector&, int, bool, unsigned int) * for additional parameter descriptions. */ bool LookupHost(const char *pszName, std::vector &vIP, unsigned int nMaxSolutions, bool fAllowLookup) { std::string strHost(pszName); if (strHost.empty()) { return false; } if (strHost.front() == '[' && strHost.back() == ']') { strHost = strHost.substr(1, strHost.size() - 2); } return LookupIntern(strHost.c_str(), vIP, nMaxSolutions, fAllowLookup); } /** * Resolve a host string to its first corresponding network address. * * @see LookupHost(const char *, std::vector&, unsigned int, bool) for * additional parameter descriptions. */ bool LookupHost(const char *pszName, CNetAddr &addr, bool fAllowLookup) { std::vector vIP; LookupHost(pszName, vIP, 1, fAllowLookup); if (vIP.empty()) { return false; } addr = vIP.front(); return true; } /** * Resolve a service string to its corresponding service. * * @param pszName The string representing a service. Could be a name or a * numerical IP address (IPv6 addresses should be in their * disambiguated bracketed form), optionally followed by a port * number. (e.g. example.com:8333 or * [2001:db8:85a3:8d3:1319:8a2e:370:7348]:420) * @param[out] vAddr The resulting services to which the specified service * string resolved. * @param portDefault The default port for resulting services if not specified * by the service string. * @param fAllowLookup Whether or not hostname lookups are permitted. If yes, * external queries may be performed. * @param nMaxSolutions The maximum number of results we want, specifying 0 * means "as many solutions as we get." * * @returns Whether or not the service string successfully resolved to any * resulting services. */ bool Lookup(const char *pszName, std::vector &vAddr, int portDefault, bool fAllowLookup, unsigned int nMaxSolutions) { if (pszName[0] == 0) { return false; } int port = portDefault; std::string hostname; SplitHostPort(std::string(pszName), port, hostname); std::vector vIP; bool fRet = LookupIntern(hostname.c_str(), vIP, nMaxSolutions, fAllowLookup); if (!fRet) { return false; } vAddr.resize(vIP.size()); for (unsigned int i = 0; i < vIP.size(); i++) { vAddr[i] = CService(vIP[i], port); } return true; } /** * Resolve a service string to its first corresponding service. * * @see Lookup(const char *, std::vector&, int, bool, unsigned int) * for additional parameter descriptions. */ bool Lookup(const char *pszName, CService &addr, int portDefault, bool fAllowLookup) { std::vector vService; bool fRet = Lookup(pszName, vService, portDefault, fAllowLookup, 1); if (!fRet) { return false; } addr = vService[0]; return true; } /** * Resolve a service string with a numeric IP to its first corresponding * service. * * @returns The resulting CService if the resolution was successful, [::]:0 * otherwise. * * @see Lookup(const char *, CService&, int, bool) for additional parameter * descriptions. */ CService LookupNumeric(const char *pszName, int portDefault) { CService addr; // "1.2:345" will fail to resolve the ip, but will still set the port. // If the ip fails to resolve, re-init the result. if (!Lookup(pszName, addr, portDefault, false)) { addr = CService(); } return addr; } struct timeval MillisToTimeval(int64_t nTimeout) { struct timeval timeout; timeout.tv_sec = nTimeout / 1000; timeout.tv_usec = (nTimeout % 1000) * 1000; return timeout; } /** SOCKS version */ enum SOCKSVersion : uint8_t { SOCKS4 = 0x04, SOCKS5 = 0x05 }; /** Values defined for METHOD in RFC1928 */ enum SOCKS5Method : uint8_t { NOAUTH = 0x00, //!< No authentication required GSSAPI = 0x01, //!< GSSAPI USER_PASS = 0x02, //!< Username/password NO_ACCEPTABLE = 0xff, //!< No acceptable methods }; /** Values defined for CMD in RFC1928 */ enum SOCKS5Command : uint8_t { CONNECT = 0x01, BIND = 0x02, UDP_ASSOCIATE = 0x03 }; /** Values defined for REP in RFC1928 */ enum SOCKS5Reply : uint8_t { SUCCEEDED = 0x00, //!< Succeeded GENFAILURE = 0x01, //!< General failure NOTALLOWED = 0x02, //!< Connection not allowed by ruleset NETUNREACHABLE = 0x03, //!< Network unreachable HOSTUNREACHABLE = 0x04, //!< Network unreachable CONNREFUSED = 0x05, //!< Connection refused TTLEXPIRED = 0x06, //!< TTL expired CMDUNSUPPORTED = 0x07, //!< Command not supported ATYPEUNSUPPORTED = 0x08, //!< Address type not supported }; /** Values defined for ATYPE in RFC1928 */ enum SOCKS5Atyp : uint8_t { IPV4 = 0x01, DOMAINNAME = 0x03, IPV6 = 0x04, }; /** Status codes that can be returned by InterruptibleRecv */ enum class IntrRecvError { OK, Timeout, Disconnected, NetworkError, Interrupted }; /** * Try to read a specified number of bytes from a socket. Please read the "see * also" section for more detail. * * @param data The buffer where the read bytes should be stored. * @param len The number of bytes to read into the specified buffer. * @param timeout The total timeout in milliseconds for this read. * @param hSocket The socket (has to be in non-blocking mode) from which to read * bytes. * * @returns An IntrRecvError indicating the resulting status of this read. * IntrRecvError::OK only if all of the specified number of bytes were * read. * * @see This function can be interrupted by calling InterruptSocks5(bool). * Sockets can be made non-blocking with SetSocketNonBlocking(const * SOCKET&, bool). */ static IntrRecvError InterruptibleRecv(uint8_t *data, size_t len, int timeout, const SOCKET &hSocket) { int64_t curTime = GetTimeMillis(); int64_t endTime = curTime + timeout; // Maximum time to wait for I/O readiness. It will take up until this time // (in millis) to break off in case of an interruption. const int64_t maxWait = 1000; while (len > 0 && curTime < endTime) { // Optimistically try the recv first ssize_t ret = recv(hSocket, (char *)data, len, 0); if (ret > 0) { len -= ret; data += ret; } else if (ret == 0) { // Unexpected disconnection return IntrRecvError::Disconnected; } else { // Other error or blocking int nErr = WSAGetLastError(); if (nErr == WSAEINPROGRESS || nErr == WSAEWOULDBLOCK || nErr == WSAEINVAL) { if (!IsSelectableSocket(hSocket)) { return IntrRecvError::NetworkError; } // Only wait at most maxWait milliseconds at a time, unless // we're approaching the end of the specified total timeout int timeout_ms = std::min(endTime - curTime, maxWait); #ifdef USE_POLL struct pollfd pollfd = {}; pollfd.fd = hSocket; pollfd.events = POLLIN; int nRet = poll(&pollfd, 1, timeout_ms); #else struct timeval tval = MillisToTimeval(timeout_ms); fd_set fdset; FD_ZERO(&fdset); FD_SET(hSocket, &fdset); int nRet = select(hSocket + 1, &fdset, nullptr, nullptr, &tval); #endif if (nRet == SOCKET_ERROR) { return IntrRecvError::NetworkError; } } else { return IntrRecvError::NetworkError; } } if (interruptSocks5Recv) { return IntrRecvError::Interrupted; } curTime = GetTimeMillis(); } return len == 0 ? IntrRecvError::OK : IntrRecvError::Timeout; } /** Credentials for proxy authentication */ struct ProxyCredentials { std::string username; std::string password; }; /** Convert SOCKS5 reply to an error message */ static std::string Socks5ErrorString(uint8_t err) { switch (err) { case SOCKS5Reply::GENFAILURE: return "general failure"; case SOCKS5Reply::NOTALLOWED: return "connection not allowed"; case SOCKS5Reply::NETUNREACHABLE: return "network unreachable"; case SOCKS5Reply::HOSTUNREACHABLE: return "host unreachable"; case SOCKS5Reply::CONNREFUSED: return "connection refused"; case SOCKS5Reply::TTLEXPIRED: return "TTL expired"; case SOCKS5Reply::CMDUNSUPPORTED: return "protocol error"; case SOCKS5Reply::ATYPEUNSUPPORTED: return "address type not supported"; default: return "unknown"; } } /** * Connect to a specified destination service through an already connected * SOCKS5 proxy. * * @param strDest The destination fully-qualified domain name. * @param port The destination port. * @param auth The credentials with which to authenticate with the specified * SOCKS5 proxy. * @param hSocket The SOCKS5 proxy socket. * * @returns Whether or not the operation succeeded. * * @note The specified SOCKS5 proxy socket must already be connected to the * SOCKS5 proxy. * * @see RFC1928: SOCKS Protocol * Version 5 */ static bool Socks5(const std::string &strDest, int port, const ProxyCredentials *auth, const SOCKET &hSocket) { IntrRecvError recvr; LogPrint(BCLog::NET, "SOCKS5 connecting %s\n", strDest); if (strDest.size() > 255) { return error("Hostname too long"); } // Construct the version identifier/method selection message std::vector vSocks5Init; // We want the SOCK5 protocol vSocks5Init.push_back(SOCKSVersion::SOCKS5); if (auth) { // 2 method identifiers follow... vSocks5Init.push_back(0x02); vSocks5Init.push_back(SOCKS5Method::NOAUTH); vSocks5Init.push_back(SOCKS5Method::USER_PASS); } else { // 1 method identifier follows... vSocks5Init.push_back(0x01); vSocks5Init.push_back(SOCKS5Method::NOAUTH); } ssize_t ret = send(hSocket, (const char *)vSocks5Init.data(), vSocks5Init.size(), MSG_NOSIGNAL); if (ret != (ssize_t)vSocks5Init.size()) { return error("Error sending to proxy"); } uint8_t pchRet1[2]; if ((recvr = InterruptibleRecv(pchRet1, 2, SOCKS5_RECV_TIMEOUT, hSocket)) != IntrRecvError::OK) { LogPrintf("Socks5() connect to %s:%d failed: InterruptibleRecv() " "timeout or other failure\n", strDest, port); return false; } if (pchRet1[0] != SOCKSVersion::SOCKS5) { return error("Proxy failed to initialize"); } if (pchRet1[1] == SOCKS5Method::USER_PASS && auth) { // Perform username/password authentication (as described in RFC1929) std::vector vAuth; // Current (and only) version of user/pass subnegotiation vAuth.push_back(0x01); if (auth->username.size() > 255 || auth->password.size() > 255) { return error("Proxy username or password too long"); } vAuth.push_back(auth->username.size()); vAuth.insert(vAuth.end(), auth->username.begin(), auth->username.end()); vAuth.push_back(auth->password.size()); vAuth.insert(vAuth.end(), auth->password.begin(), auth->password.end()); ret = send(hSocket, (const char *)vAuth.data(), vAuth.size(), MSG_NOSIGNAL); if (ret != (ssize_t)vAuth.size()) { return error("Error sending authentication to proxy"); } LogPrint(BCLog::PROXY, "SOCKS5 sending proxy authentication %s:%s\n", auth->username, auth->password); uint8_t pchRetA[2]; if ((recvr = InterruptibleRecv(pchRetA, 2, SOCKS5_RECV_TIMEOUT, hSocket)) != IntrRecvError::OK) { return error("Error reading proxy authentication response"); } if (pchRetA[0] != 0x01 || pchRetA[1] != 0x00) { return error("Proxy authentication unsuccessful"); } } else if (pchRet1[1] == SOCKS5Method::NOAUTH) { // Perform no authentication } else { return error("Proxy requested wrong authentication method %02x", pchRet1[1]); } std::vector vSocks5; // VER protocol version vSocks5.push_back(SOCKSVersion::SOCKS5); // CMD CONNECT vSocks5.push_back(SOCKS5Command::CONNECT); // RSV Reserved must be 0 vSocks5.push_back(0x00); // ATYP DOMAINNAME vSocks5.push_back(SOCKS5Atyp::DOMAINNAME); // Length<=255 is checked at beginning of function vSocks5.push_back(strDest.size()); vSocks5.insert(vSocks5.end(), strDest.begin(), strDest.end()); vSocks5.push_back((port >> 8) & 0xFF); vSocks5.push_back((port >> 0) & 0xFF); ret = send(hSocket, (const char *)vSocks5.data(), vSocks5.size(), MSG_NOSIGNAL); if (ret != (ssize_t)vSocks5.size()) { return error("Error sending to proxy"); } uint8_t pchRet2[4]; if ((recvr = InterruptibleRecv(pchRet2, 4, SOCKS5_RECV_TIMEOUT, hSocket)) != IntrRecvError::OK) { if (recvr == IntrRecvError::Timeout) { /** * If a timeout happens here, this effectively means we timed out * while connecting to the remote node. This is very common for Tor, * so do not print an error message. */ return false; } else { return error("Error while reading proxy response"); } } if (pchRet2[0] != SOCKSVersion::SOCKS5) { return error("Proxy failed to accept request"); } if (pchRet2[1] != SOCKS5Reply::SUCCEEDED) { // Failures to connect to a peer that are not proxy errors LogPrintf("Socks5() connect to %s:%d failed: %s\n", strDest, port, Socks5ErrorString(pchRet2[1])); return false; } // Reserved field must be 0 if (pchRet2[2] != 0x00) { return error("Error: malformed proxy response"); } uint8_t pchRet3[256]; switch (pchRet2[3]) { case SOCKS5Atyp::IPV4: recvr = InterruptibleRecv(pchRet3, 4, SOCKS5_RECV_TIMEOUT, hSocket); break; case SOCKS5Atyp::IPV6: recvr = InterruptibleRecv(pchRet3, 16, SOCKS5_RECV_TIMEOUT, hSocket); break; case SOCKS5Atyp::DOMAINNAME: { recvr = InterruptibleRecv(pchRet3, 1, SOCKS5_RECV_TIMEOUT, hSocket); if (recvr != IntrRecvError::OK) { return error("Error reading from proxy"); } int nRecv = pchRet3[0]; recvr = InterruptibleRecv(pchRet3, nRecv, SOCKS5_RECV_TIMEOUT, hSocket); break; } default: return error("Error: malformed proxy response"); } if (recvr != IntrRecvError::OK) { return error("Error reading from proxy"); } if ((recvr = InterruptibleRecv(pchRet3, 2, SOCKS5_RECV_TIMEOUT, hSocket)) != IntrRecvError::OK) { return error("Error reading from proxy"); } LogPrint(BCLog::NET, "SOCKS5 connected %s\n", strDest); return true; } /** * Try to create a socket file descriptor with specific properties in the * communications domain (address family) of the specified service. * * For details on the desired properties, see the inline comments in the source * code. */ SOCKET CreateSocket(const CService &addrConnect) { // Create a sockaddr from the specified service. struct sockaddr_storage sockaddr; socklen_t len = sizeof(sockaddr); if (!addrConnect.GetSockAddr((struct sockaddr *)&sockaddr, &len)) { LogPrintf("Cannot create socket for %s: unsupported network\n", addrConnect.ToString()); return INVALID_SOCKET; } // Create a TCP socket in the address family of the specified service. SOCKET hSocket = socket(((struct sockaddr *)&sockaddr)->sa_family, SOCK_STREAM, IPPROTO_TCP); if (hSocket == INVALID_SOCKET) { return INVALID_SOCKET; } // Ensure that waiting for I/O on this socket won't result in undefined // behavior. if (!IsSelectableSocket(hSocket)) { CloseSocket(hSocket); LogPrintf("Cannot create connection: non-selectable socket created (fd " ">= FD_SETSIZE ?)\n"); return INVALID_SOCKET; } #ifdef SO_NOSIGPIPE int set = 1; // Set the no-sigpipe option on the socket for BSD systems, other UNIXes // should use the MSG_NOSIGNAL flag for every send. setsockopt(hSocket, SOL_SOCKET, SO_NOSIGPIPE, (sockopt_arg_type)&set, sizeof(int)); #endif // Set the no-delay option (disable Nagle's algorithm) on the TCP socket. SetSocketNoDelay(hSocket); // Set the non-blocking option on the socket. if (!SetSocketNonBlocking(hSocket, true)) { CloseSocket(hSocket); LogPrintf("CreateSocket: Setting socket to non-blocking " "failed, error %s\n", NetworkErrorString(WSAGetLastError())); } return hSocket; } template static void LogConnectFailure(bool manual_connection, const char *fmt, const Args &... args) { std::string error_message = tfm::format(fmt, args...); if (manual_connection) { LogPrintf("%s\n", error_message); } else { LogPrint(BCLog::NET, "%s\n", error_message); } } /** * Try to connect to the specified service on the specified socket. * * @param addrConnect The service to which to connect. * @param hSocket The socket on which to connect. * @param nTimeout Wait this many milliseconds for the connection to be * established. * @param manual_connection Whether or not the connection was manually requested - * (e.g. thru the addnode RPC) + * (e.g. through the addnode RPC) * * @returns Whether or not a connection was successfully made. */ bool ConnectSocketDirectly(const CService &addrConnect, const SOCKET &hSocket, int nTimeout, bool manual_connection) { // Create a sockaddr from the specified service. struct sockaddr_storage sockaddr; socklen_t len = sizeof(sockaddr); if (hSocket == INVALID_SOCKET) { LogPrintf("Cannot connect to %s: invalid socket\n", addrConnect.ToString()); return false; } if (!addrConnect.GetSockAddr((struct sockaddr *)&sockaddr, &len)) { LogPrintf("Cannot connect to %s: unsupported network\n", addrConnect.ToString()); return false; } // Connect to the addrConnect service on the hSocket socket. if (connect(hSocket, (struct sockaddr *)&sockaddr, len) == SOCKET_ERROR) { int nErr = WSAGetLastError(); // WSAEINVAL is here because some legacy version of winsock uses it if (nErr == WSAEINPROGRESS || nErr == WSAEWOULDBLOCK || nErr == WSAEINVAL) { // Connection didn't actually fail, but is being established // asynchronously. Thus, use async I/O api (select/poll) // synchronously to check for successful connection with a timeout. #ifdef USE_POLL struct pollfd pollfd = {}; pollfd.fd = hSocket; pollfd.events = POLLIN | POLLOUT; int nRet = poll(&pollfd, 1, nTimeout); #else struct timeval timeout = MillisToTimeval(nTimeout); fd_set fdset; FD_ZERO(&fdset); FD_SET(hSocket, &fdset); int nRet = select(hSocket + 1, nullptr, &fdset, nullptr, &timeout); #endif // Upon successful completion, both select and poll return the total // number of file descriptors that have been selected. A value of 0 // indicates that the call timed out and no file descriptors have // been selected. if (nRet == 0) { LogPrint(BCLog::NET, "connection to %s timeout\n", addrConnect.ToString()); return false; } if (nRet == SOCKET_ERROR) { LogPrintf("select() for %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError())); return false; } // Even if the select/poll was successful, the connect might not // have been successful. The reason for this failure is hidden away // in the SO_ERROR for the socket in modern systems. We read it into // nRet here. socklen_t nRetSize = sizeof(nRet); if (getsockopt(hSocket, SOL_SOCKET, SO_ERROR, (sockopt_arg_type)&nRet, &nRetSize) == SOCKET_ERROR) { LogPrintf("getsockopt() for %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError())); return false; } if (nRet != 0) { LogConnectFailure(manual_connection, "connect() to %s failed after select(): %s", addrConnect.ToString(), NetworkErrorString(nRet)); return false; } } #ifdef WIN32 else if (WSAGetLastError() != WSAEISCONN) #else else #endif { LogConnectFailure(manual_connection, "connect() to %s failed: %s", addrConnect.ToString(), NetworkErrorString(WSAGetLastError())); return false; } } return true; } bool SetProxy(enum Network net, const proxyType &addrProxy) { assert(net >= 0 && net < NET_MAX); if (!addrProxy.IsValid()) { return false; } LOCK(cs_proxyInfos); proxyInfo[net] = addrProxy; return true; } bool GetProxy(enum Network net, proxyType &proxyInfoOut) { assert(net >= 0 && net < NET_MAX); LOCK(cs_proxyInfos); if (!proxyInfo[net].IsValid()) { return false; } proxyInfoOut = proxyInfo[net]; return true; } /** * Set the name proxy to use for all connections to nodes specified by a - * hostname. After setting this proxy, connecting to a node sepcified by a + * hostname. After setting this proxy, connecting to a node specified by a * hostname won't result in a local lookup of said hostname, rather, connect to * the node by asking the name proxy for a proxy connection to the hostname, * effectively delegating the hostname lookup to the specified proxy. * * This delegation increases privacy for those who set the name proxy as they no * longer leak their external hostname queries to their DNS servers. * * @returns Whether or not the operation succeeded. * * @note SOCKS5's support for UDP-over-SOCKS5 has been considered, but no SOCK5 * server in common use (most notably Tor) actually implements UDP * support, and a DNS resolver is beyond the scope of this project. */ bool SetNameProxy(const proxyType &addrProxy) { if (!addrProxy.IsValid()) { return false; } LOCK(cs_proxyInfos); nameProxy = addrProxy; return true; } bool GetNameProxy(proxyType &nameProxyOut) { LOCK(cs_proxyInfos); if (!nameProxy.IsValid()) { return false; } nameProxyOut = nameProxy; return true; } bool HaveNameProxy() { LOCK(cs_proxyInfos); return nameProxy.IsValid(); } bool IsProxy(const CNetAddr &addr) { LOCK(cs_proxyInfos); for (int i = 0; i < NET_MAX; i++) { if (addr == static_cast(proxyInfo[i].proxy)) { return true; } } return false; } /** * Connect to a specified destination service through a SOCKS5 proxy by first * connecting to the SOCKS5 proxy. * * @param proxy The SOCKS5 proxy. * @param strDest The destination service to which to connect. * @param port The destination port. * @param hSocket The socket on which to connect to the SOCKS5 proxy. * @param nTimeout Wait this many milliseconds for the connection to the SOCKS5 * proxy to be established. * @param outProxyConnectionFailed[out] Whether or not the connection to the * SOCKS5 proxy failed. * * @returns Whether or not the operation succeeded. */ bool ConnectThroughProxy(const proxyType &proxy, const std::string &strDest, int port, const SOCKET &hSocket, int nTimeout, bool *outProxyConnectionFailed) { // first connect to proxy server if (!ConnectSocketDirectly(proxy.proxy, hSocket, nTimeout, true)) { if (outProxyConnectionFailed) { *outProxyConnectionFailed = true; } return false; } // do socks negotiation if (proxy.randomize_credentials) { ProxyCredentials random_auth; static std::atomic_int counter(0); random_auth.username = random_auth.password = strprintf("%i", counter++); if (!Socks5(strDest, (unsigned short)port, &random_auth, hSocket)) { return false; } } else if (!Socks5(strDest, (unsigned short)port, 0, hSocket)) { return false; } return true; } /** * Parse and resolve a specified subnet string into the appropriate internal * representation. * * @param pszName A string representation of a subnet of the form `network * address [ "/", ( CIDR-style suffix | netmask ) ]`(e.g. * `2001:db8::/32`, `192.0.2.0/255.255.255.0`, or `8.8.8.8`). * @param ret The resulting internal representation of a subnet. * * @returns Whether the operation succeeded or not. */ bool LookupSubNet(const char *pszName, CSubNet &ret) { std::string strSubnet(pszName); size_t slash = strSubnet.find_last_of('/'); std::vector vIP; std::string strAddress = strSubnet.substr(0, slash); // TODO: Use LookupHost(const char *, CNetAddr&, bool) instead to just get // one CNetAddr. if (LookupHost(strAddress.c_str(), vIP, 1, false)) { CNetAddr network = vIP[0]; if (slash != strSubnet.npos) { std::string strNetmask = strSubnet.substr(slash + 1); int32_t n; if (ParseInt32(strNetmask, &n)) { // If valid number, assume CIDR variable-length subnet masking ret = CSubNet(network, n); return ret.IsValid(); } else { // If not a valid number, try full netmask syntax // Never allow lookup for netmask if (LookupHost(strNetmask.c_str(), vIP, 1, false)) { ret = CSubNet(network, vIP[0]); return ret.IsValid(); } } } else { ret = CSubNet(network); return ret.IsValid(); } } return false; } #ifdef WIN32 std::string NetworkErrorString(int err) { char buf[256]; buf[0] = 0; if (FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_MAX_WIDTH_MASK, nullptr, err, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf, sizeof(buf), nullptr)) { return strprintf("%s (%d)", buf, err); } else { return strprintf("Unknown error (%d)", err); } } #else std::string NetworkErrorString(int err) { char buf[256]; buf[0] = 0; /** * Too bad there are two incompatible implementations of the * thread-safe strerror. */ const char *s; #ifdef STRERROR_R_CHAR_P /* GNU variant can return a pointer outside the passed buffer */ s = strerror_r(err, buf, sizeof(buf)); #else s = buf; /* POSIX variant always returns message in buffer */ if (strerror_r(err, buf, sizeof(buf))) { buf[0] = 0; } #endif return strprintf("%s (%d)", s, err); } #endif bool CloseSocket(SOCKET &hSocket) { if (hSocket == INVALID_SOCKET) { return false; } #ifdef WIN32 int ret = closesocket(hSocket); #else int ret = close(hSocket); #endif if (ret) { LogPrintf("Socket close failed: %d. Error: %s\n", hSocket, NetworkErrorString(WSAGetLastError())); } hSocket = INVALID_SOCKET; return ret != SOCKET_ERROR; } bool SetSocketNonBlocking(const SOCKET &hSocket, bool fNonBlocking) { if (fNonBlocking) { #ifdef WIN32 u_long nOne = 1; if (ioctlsocket(hSocket, FIONBIO, &nOne) == SOCKET_ERROR) { #else int fFlags = fcntl(hSocket, F_GETFL, 0); if (fcntl(hSocket, F_SETFL, fFlags | O_NONBLOCK) == SOCKET_ERROR) { #endif return false; } } else { #ifdef WIN32 u_long nZero = 0; if (ioctlsocket(hSocket, FIONBIO, &nZero) == SOCKET_ERROR) { #else int fFlags = fcntl(hSocket, F_GETFL, 0); if (fcntl(hSocket, F_SETFL, fFlags & ~O_NONBLOCK) == SOCKET_ERROR) { #endif return false; } } return true; } bool SetSocketNoDelay(const SOCKET &hSocket) { int set = 1; int rc = setsockopt(hSocket, IPPROTO_TCP, TCP_NODELAY, (sockopt_arg_type)&set, sizeof(int)); return rc == 0; } void InterruptSocks5(bool interrupt) { interruptSocks5Recv = interrupt; } diff --git a/src/node/transaction.cpp b/src/node/transaction.cpp index 042c08e67..0cf95659f 100644 --- a/src/node/transaction.cpp +++ b/src/node/transaction.cpp @@ -1,96 +1,96 @@ // Copyright (c) 2010 Satoshi Nakamoto // Copyright (c) 2009-2018 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include #include #include #include #include #include #include #include #include #include #include #include TransactionError BroadcastTransaction(NodeContext &node, const Config &config, const CTransactionRef tx, std::string &err_string, const Amount max_tx_fee, bool relay, bool wait_callback) { // BroadcastTransaction can be called by either sendrawtransaction RPC or // wallet RPCs. node.connman is assigned both before chain clients and // before RPC server is accepting calls, and reset after chain clients and // RPC sever are stopped. node.connman should never be null here. assert(node.connman); assert(node.mempool); std::promise promise; TxId txid = tx->GetId(); bool callback_set = false; { // cs_main scope LOCK(cs_main); // If the transaction is already confirmed in the chain, don't do // anything and return early. CCoinsViewCache &view = ::ChainstateActive().CoinsTip(); for (size_t o = 0; o < tx->vout.size(); o++) { const Coin &existingCoin = view.AccessCoin(COutPoint(txid, o)); - // IsSpent doesnt mean the coin is spent, it means the output - // doesnt' exist. So if the output does exist, then this transaction + // IsSpent doesn't mean the coin is spent, it means the output + // doesn't exist. So if the output does exist, then this transaction // exists in the chain. if (!existingCoin.IsSpent()) { return TransactionError::ALREADY_IN_CHAIN; } } if (!node.mempool->exists(txid)) { // Transaction is not already in the mempool. Submit it. TxValidationState state; if (!AcceptToMemoryPool(config, *node.mempool, state, std::move(tx), false /* bypass_limits */, max_tx_fee)) { err_string = FormatStateMessage(state); if (state.IsInvalid()) { if (state.GetResult() == TxValidationResult::TX_MISSING_INPUTS) { return TransactionError::MISSING_INPUTS; } return TransactionError::MEMPOOL_REJECTED; } return TransactionError::MEMPOOL_ERROR; } // Transaction was accepted to the mempool. if (wait_callback) { // For transactions broadcast from outside the wallet, make sure // that the wallet has been notified of the transaction before // continuing. // // This prevents a race where a user might call // sendrawtransaction with a transaction to/from their wallet, // immediately call some wallet RPC, and get a stale result // because callbacks have not yet been processed. CallFunctionInValidationInterfaceQueue( [&promise] { promise.set_value(); }); callback_set = true; } } } // cs_main if (callback_set) { // Wait until Validation Interface clients have been notified of the // transaction entering the mempool. promise.get_future().wait(); } if (relay) { RelayTransaction(txid, *node.connman); } return TransactionError::OK; } diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp index 846064f16..8af22c919 100644 --- a/src/qt/bitcoin.cpp +++ b/src/qt/bitcoin.cpp @@ -1,776 +1,776 @@ // Copyright (c) 2011-2019 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef ENABLE_WALLET #include #include #include #endif // ENABLE_WALLET #include #include #include #include #include #include #include #include #include #if defined(QT_STATICPLUGIN) #include #if defined(QT_QPA_PLATFORM_XCB) Q_IMPORT_PLUGIN(QXcbIntegrationPlugin); #elif defined(QT_QPA_PLATFORM_WINDOWS) Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin); #elif defined(QT_QPA_PLATFORM_COCOA) Q_IMPORT_PLUGIN(QCocoaIntegrationPlugin); #endif #endif // Declare meta types used for QMetaObject::invokeMethod Q_DECLARE_METATYPE(bool *) Q_DECLARE_METATYPE(Amount) Q_DECLARE_METATYPE(uint256) // Config is non-copyable so we can only register pointers to it Q_DECLARE_METATYPE(Config *) static QString GetLangTerritory() { QSettings settings; // Get desired locale (e.g. "de_DE") // 1) System default language QString lang_territory = QLocale::system().name(); // 2) Language from QSettings QString lang_territory_qsettings = settings.value("language", "").toString(); if (!lang_territory_qsettings.isEmpty()) { lang_territory = lang_territory_qsettings; } // 3) -lang command line argument lang_territory = QString::fromStdString( gArgs.GetArg("-lang", lang_territory.toStdString())); return lang_territory; } /** Set up translations */ static void initTranslations(QTranslator &qtTranslatorBase, QTranslator &qtTranslator, QTranslator &translatorBase, QTranslator &translator) { // Remove old translators QApplication::removeTranslator(&qtTranslatorBase); QApplication::removeTranslator(&qtTranslator); QApplication::removeTranslator(&translatorBase); QApplication::removeTranslator(&translator); // Get desired locale (e.g. "de_DE") // 1) System default language QString lang_territory = GetLangTerritory(); // Convert to "de" only by truncating "_DE" QString lang = lang_territory; lang.truncate(lang_territory.lastIndexOf('_')); // Load language files for configured locale: // - First load the translator for the base language, without territory // - Then load the more specific locale translator // Load e.g. qt_de.qm if (qtTranslatorBase.load( "qt_" + lang, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) { QApplication::installTranslator(&qtTranslatorBase); } // Load e.g. qt_de_DE.qm if (qtTranslator.load( "qt_" + lang_territory, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) { QApplication::installTranslator(&qtTranslator); } // Load e.g. bitcoin_de.qm (shortcut "de" needs to be defined in // bitcoin.qrc) if (translatorBase.load(lang, ":/translations/")) { QApplication::installTranslator(&translatorBase); } // Load e.g. bitcoin_de_DE.qm (shortcut "de_DE" needs to be defined in // bitcoin.qrc) if (translator.load(lang_territory, ":/translations/")) { QApplication::installTranslator(&translator); } } /* qDebug() message handler --> debug.log */ void DebugMessageHandler(QtMsgType type, const QMessageLogContext &context, const QString &msg) { Q_UNUSED(context); if (type == QtDebugMsg) { LogPrint(BCLog::QT, "GUI: %s\n", msg.toStdString()); } else { LogPrintf("GUI: %s\n", msg.toStdString()); } } BitcoinABC::BitcoinABC(interfaces::Node &node) : QObject(), m_node(node) {} void BitcoinABC::handleRunawayException(const std::exception *e) { PrintExceptionContinue(e, "Runaway exception"); Q_EMIT runawayException(QString::fromStdString(m_node.getWarnings("gui"))); } void BitcoinABC::initialize(Config *config, RPCServer *rpcServer, HTTPRPCRequestProcessor *httpRPCRequestProcessor) { try { qDebug() << __func__ << ": Running initialization in thread"; util::ThreadRename("qt-init"); bool rv = m_node.appInitMain(*config, *rpcServer, *httpRPCRequestProcessor); Q_EMIT initializeResult(rv); } catch (const std::exception &e) { handleRunawayException(&e); } catch (...) { handleRunawayException(nullptr); } } void BitcoinABC::shutdown() { try { qDebug() << __func__ << ": Running Shutdown in thread"; m_node.appShutdown(); qDebug() << __func__ << ": Shutdown finished"; Q_EMIT shutdownResult(); } catch (const std::exception &e) { handleRunawayException(&e); } catch (...) { handleRunawayException(nullptr); } } static int qt_argc = 1; static const char *qt_argv = "bitcoin-qt"; BitcoinApplication::BitcoinApplication(interfaces::Node &node) : QApplication(qt_argc, const_cast(&qt_argv)), coreThread(nullptr), m_node(node), optionsModel(nullptr), clientModel(nullptr), window(nullptr), pollShutdownTimer(nullptr), returnValue(0), platformStyle(nullptr) { setQuitOnLastWindowClosed(false); } void BitcoinApplication::setupPlatformStyle() { // UI per-platform customization // This must be done inside the BitcoinApplication constructor, or after it, // because PlatformStyle::instantiate requires a QApplication. std::string platformName; platformName = gArgs.GetArg("-uiplatform", BitcoinGUI::DEFAULT_UIPLATFORM); platformStyle = PlatformStyle::instantiate(QString::fromStdString(platformName)); // Fall back to "other" if specified name not found. if (!platformStyle) { platformStyle = PlatformStyle::instantiate("other"); } assert(platformStyle); } BitcoinApplication::~BitcoinApplication() { if (coreThread) { qDebug() << __func__ << ": Stopping thread"; coreThread->quit(); coreThread->wait(); qDebug() << __func__ << ": Stopped thread"; } delete window; window = nullptr; delete optionsModel; optionsModel = nullptr; delete platformStyle; platformStyle = nullptr; } #ifdef ENABLE_WALLET void BitcoinApplication::createPaymentServer() { paymentServer = new PaymentServer(this); } #endif void BitcoinApplication::createOptionsModel(bool resetSettings) { optionsModel = new OptionsModel(m_node, nullptr, resetSettings); } void BitcoinApplication::createWindow(const Config *config, const NetworkStyle *networkStyle) { window = new BitcoinGUI(m_node, config, platformStyle, networkStyle, nullptr); pollShutdownTimer = new QTimer(window); connect(pollShutdownTimer, &QTimer::timeout, window, &BitcoinGUI::detectShutdown); } void BitcoinApplication::createSplashScreen(const NetworkStyle *networkStyle) { SplashScreen *splash = new SplashScreen(m_node, networkStyle); // We don't hold a direct pointer to the splash screen after creation, but // the splash screen will take care of deleting itself when finish() // happens. splash->show(); connect(this, &BitcoinApplication::splashFinished, splash, &SplashScreen::finish); connect(this, &BitcoinApplication::requestedShutdown, splash, &QWidget::close); } bool BitcoinApplication::baseInitialize(Config &config) { return m_node.baseInitialize(config); } void BitcoinApplication::startThread() { if (coreThread) { return; } coreThread = new QThread(this); BitcoinABC *executor = new BitcoinABC(m_node); executor->moveToThread(coreThread); /* communication to and from thread */ connect(executor, &BitcoinABC::initializeResult, this, &BitcoinApplication::initializeResult); connect(executor, &BitcoinABC::shutdownResult, this, &BitcoinApplication::shutdownResult); connect(executor, &BitcoinABC::runawayException, this, &BitcoinApplication::handleRunawayException); // Note on how Qt works: it tries to directly invoke methods if the signal // is emitted on the same thread that the target object 'lives' on. // But if the target object 'lives' on another thread (executor here does) // the SLOT will be invoked asynchronously at a later time in the thread // of the target object. So.. we pass a pointer around. If you pass // a reference around (even if it's non-const) you'll get Qt generating // code to copy-construct the parameter in question (Q_DECLARE_METATYPE // and qRegisterMetaType generate this code). For the Config class, // which is noncopyable, we can't do this. So.. we have to pass // pointers to Config around. Make sure Config &/Config * isn't a // temporary (eg it lives somewhere aside from the stack) or this will // crash because initialize() gets executed in another thread at some // unspecified time (after) requestedInitialize() is emitted! connect(this, &BitcoinApplication::requestedInitialize, executor, &BitcoinABC::initialize); connect(this, &BitcoinApplication::requestedShutdown, executor, &BitcoinABC::shutdown); /* make sure executor object is deleted in its own thread */ connect(coreThread, &QThread::finished, executor, &QObject::deleteLater); coreThread->start(); } void BitcoinApplication::parameterSetup() { // Default printtoconsole to false for the GUI. GUI programs should not // print to the console unnecessarily. gArgs.SoftSetBoolArg("-printtoconsole", false); m_node.initLogging(); m_node.initParameterInteraction(); } void BitcoinApplication::SetPrune(bool prune, bool force) { optionsModel->SetPrune(prune, force); } void BitcoinApplication::requestInitialize( Config &config, RPCServer &rpcServer, HTTPRPCRequestProcessor &httpRPCRequestProcessor) { qDebug() << __func__ << ": Requesting initialize"; startThread(); // IMPORTANT: config must NOT be a reference to a temporary because below // signal may be connected to a slot that will be executed as a queued // connection in another thread! Q_EMIT requestedInitialize(&config, &rpcServer, &httpRPCRequestProcessor); } void BitcoinApplication::requestShutdown(Config &config) { // Show a simple window indicating shutdown status. Do this first as some of // the steps may take some time below, for example the RPC console may still // be executing a command. shutdownWindow.reset(ShutdownWindow::showShutdownWindow(window)); qDebug() << __func__ << ": Requesting shutdown"; startThread(); window->hide(); // Must disconnect node signals otherwise current thread can deadlock since // no event loop is running. window->unsubscribeFromCoreSignals(); // Request node shutdown, which can interrupt long operations, like // rescanning a wallet. m_node.startShutdown(); // Unsetting the client model can cause the current thread to wait for node - // to complete an operation, like wait for a RPC execution to complate. + // to complete an operation, like wait for a RPC execution to complete. window->setClientModel(nullptr); pollShutdownTimer->stop(); delete clientModel; clientModel = nullptr; // Request shutdown from core thread Q_EMIT requestedShutdown(); } void BitcoinApplication::initializeResult(bool success) { qDebug() << __func__ << ": Initialization result: " << success; returnValue = success ? EXIT_SUCCESS : EXIT_FAILURE; if (!success) { // Make sure splash screen doesn't stick around during shutdown. Q_EMIT splashFinished(); // Exit first main loop invocation. quit(); return; } // Log this only after AppInitMain finishes, as then logging setup is // guaranteed complete. qWarning() << "Platform customization:" << platformStyle->getName(); clientModel = new ClientModel(m_node, optionsModel); window->setClientModel(clientModel); #ifdef ENABLE_WALLET if (WalletModel::isWalletEnabled()) { m_wallet_controller = new WalletController(m_node, platformStyle, optionsModel, this); window->setWalletController(m_wallet_controller); if (paymentServer) { paymentServer->setOptionsModel(optionsModel); #ifdef ENABLE_BIP70 PaymentServer::LoadRootCAs(); connect(m_wallet_controller, &WalletController::coinsSent, paymentServer, &PaymentServer::fetchPaymentACK); #endif } } #endif // ENABLE_WALLET // If -min option passed, start window minimized(iconified) // or minimized to tray if (!gArgs.GetBoolArg("-min", false)) { window->show(); } else if (clientModel->getOptionsModel()->getMinimizeToTray() && window->hasTrayIcon()) { // do nothing as the window is managed by the tray icon } else { window->showMinimized(); } Q_EMIT splashFinished(); Q_EMIT windowShown(window); #ifdef ENABLE_WALLET // Now that initialization/startup is done, process any command-line // bitcoincash: URIs or payment requests: if (paymentServer) { connect(paymentServer, &PaymentServer::receivedPaymentRequest, window, &BitcoinGUI::handlePaymentRequest); connect(window, &BitcoinGUI::receivedURI, paymentServer, &PaymentServer::handleURIOrFile); connect(paymentServer, &PaymentServer::message, [this](const QString &title, const QString &message, unsigned int style) { window->message(title, message, style); }); QTimer::singleShot(100, paymentServer, &PaymentServer::uiReady); } #endif pollShutdownTimer->start(200); } void BitcoinApplication::shutdownResult() { // Exit second main loop invocation after shutdown finished. quit(); } void BitcoinApplication::handleRunawayException(const QString &message) { QMessageBox::critical( nullptr, "Runaway exception", BitcoinGUI::tr("A fatal error occurred. Bitcoin can no longer continue " "safely and will quit.") + QString("\n\n") + message); ::exit(EXIT_FAILURE); } WId BitcoinApplication::getMainWinId() const { if (!window) { return 0; } return window->winId(); } static void SetupUIArgs() { #if defined(ENABLE_WALLET) && defined(ENABLE_BIP70) gArgs.AddArg("-allowselfsignedrootcertificates", strprintf("Allow self signed root certificates (default: %d)", DEFAULT_SELFSIGNED_ROOTCERTS), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::GUI); #endif gArgs.AddArg("-choosedatadir", strprintf("Choose data directory on startup (default: %d)", DEFAULT_CHOOSE_DATADIR), ArgsManager::ALLOW_ANY, OptionsCategory::GUI); gArgs.AddArg("-lang=", "Set language, for example \"de_DE\" (default: system locale)", ArgsManager::ALLOW_ANY, OptionsCategory::GUI); gArgs.AddArg("-min", "Start minimized", ArgsManager::ALLOW_ANY, OptionsCategory::GUI); gArgs.AddArg( "-rootcertificates=", "Set SSL root certificates for payment request (default: -system-)", ArgsManager::ALLOW_ANY, OptionsCategory::GUI); gArgs.AddArg("-splash", strprintf("Show splash screen on startup (default: %d)", DEFAULT_SPLASHSCREEN), ArgsManager::ALLOW_ANY, OptionsCategory::GUI); gArgs.AddArg("-resetguisettings", "Reset all settings changed in the GUI", ArgsManager::ALLOW_ANY, OptionsCategory::GUI); gArgs.AddArg("-uiplatform", strprintf("Select platform to customize UI for (one of " "windows, macosx, other; default: %s)", BitcoinGUI::DEFAULT_UIPLATFORM), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::GUI); } static void MigrateSettings() { assert(!QApplication::applicationName().isEmpty()); static const QString legacyAppName("Bitcoin-Qt"), #ifdef Q_OS_DARWIN // Macs and/or iOS et al use a domain-style name for Settings // files. All other platforms use a simple orgname. This // difference is documented in the QSettings class documentation. legacyOrg("bitcoin.org"); #else legacyOrg("Bitcoin"); #endif QSettings // below picks up settings file location based on orgname,appname legacy(legacyOrg, legacyAppName), // default c'tor below picks up settings file location based on // QApplication::applicationName(), et al -- which was already set // in main() abc; #ifdef Q_OS_DARWIN // Disable bogus OSX keys from MacOS system-wide prefs that may cloud our // judgement ;) (this behavior is also documented in QSettings docs) legacy.setFallbacksEnabled(false); abc.setFallbacksEnabled(false); #endif const QStringList legacyKeys(legacy.allKeys()); // We only migrate settings if we have Core settings but no Bitcoin-ABC // settings if (!legacyKeys.isEmpty() && abc.allKeys().isEmpty()) { for (const QString &key : legacyKeys) { // now, copy settings over abc.setValue(key, legacy.value(key)); } } } int GuiMain(int argc, char *argv[]) { #ifdef WIN32 util::WinCmdLineArgs winArgs; std::tie(argc, argv) = winArgs.get(); #endif SetupEnvironment(); util::ThreadSetInternalName("main"); NodeContext node_context; std::unique_ptr node = interfaces::MakeNode(&node_context); // Subscribe to global signals from core std::unique_ptr handler_message_box = node->handleMessageBox(noui_ThreadSafeMessageBox); std::unique_ptr handler_question = node->handleQuestion(noui_ThreadSafeQuestion); std::unique_ptr handler_init_message = node->handleInitMessage(noui_InitMessage); // Do not refer to data directory yet, this can be overridden by // Intro::pickDataDirectory /// 1. Basic Qt initialization (not dependent on parameters or /// configuration) Q_INIT_RESOURCE(bitcoin); Q_INIT_RESOURCE(bitcoin_locale); // Generate high-dpi pixmaps QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps); QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling); #ifdef Q_OS_MAC QApplication::setAttribute(Qt::AA_DontShowIconsInMenus); #endif BitcoinApplication app(*node); // Register meta types used for QMetaObject::invokeMethod qRegisterMetaType(); #ifdef ENABLE_WALLET qRegisterMetaType(); #endif // Need to pass name here as Amount is a typedef (see // http://qt-project.org/doc/qt-5/qmetatype.html#qRegisterMetaType) // IMPORTANT if it is no longer a typedef use the normal variant above qRegisterMetaType("Amount"); qRegisterMetaType>("std::function"); qRegisterMetaType("QMessageBox::Icon"); // Need to register any types Qt doesn't know about if you intend // to use them with the signal/slot mechanism Qt provides. Even pointers. // Note that class Config is noncopyable and so we can't register a // non-pointer version of it with Qt, because Qt expects to be able to // copy-construct non-pointers to objects for invoking slots // behind-the-scenes in the 'Queued' connection case. qRegisterMetaType(); /// 2. Parse command-line options. We do this after qt in order to show an /// error if there are problems parsing these // Command-line options take precedence: node->setupServerArgs(); SetupUIArgs(); std::string error; if (!node->parseParameters(argc, argv, error)) { node->initError( strprintf("Error parsing command line arguments: %s\n", error)); // Create a message box, because the gui has neither been created nor // has subscribed to core signals QMessageBox::critical( nullptr, PACKAGE_NAME, // message can not be translated because translations have not been // initialized QString::fromStdString("Error parsing command line arguments: %1.") .arg(QString::fromStdString(error))); return EXIT_FAILURE; } // Now that the QApplication is setup and we have parsed our parameters, we // can set the platform style app.setupPlatformStyle(); /// 3. Application identification // must be set before OptionsModel is initialized or translations are // loaded, as it is used to locate QSettings. // Note: If you move these calls somewhere else, be sure to bring // MigrateSettings() below along for the ride. QApplication::setOrganizationName(QAPP_ORG_NAME); QApplication::setOrganizationDomain(QAPP_ORG_DOMAIN); QApplication::setApplicationName(QAPP_APP_NAME_DEFAULT); // Migrate settings from core's/our old GUI settings to Bitcoin ABC // only if core's exist but Bitcoin ABC's doesn't. // NOTE -- this function needs to be called *after* the above 3 lines // that set the app orgname and app name! If you move the above 3 lines // to elsewhere, take this call with you! MigrateSettings(); /// 4. Initialization of translations, so that intro dialog is in user's /// language. Now that QSettings are accessible, initialize translations. QTranslator qtTranslatorBase, qtTranslator, translatorBase, translator; initTranslations(qtTranslatorBase, qtTranslator, translatorBase, translator); // Show help message immediately after parsing command-line options (for // "-lang") and setting locale, but before showing splash screen. if (HelpRequested(gArgs) || gArgs.IsArgSet("-version")) { HelpMessageDialog help(*node, nullptr, gArgs.IsArgSet("-version")); help.showOrPrint(); return EXIT_SUCCESS; } /// 5. Now that settings and translations are available, ask user for data /// directory. User language is set up: pick a data directory. bool did_show_intro = false; // Intro dialog prune check box bool prune = false; // Gracefully exit if the user cancels if (!Intro::showIfNeeded(*node, did_show_intro, prune)) { return EXIT_SUCCESS; } /// 6. Determine availability of data directory and parse /// bitcoin.conf /// - Do not call GetDataDir(true) before this step finishes. if (!CheckDataDirOption()) { node->initError( strprintf("Specified data directory \"%s\" does not exist.\n", gArgs.GetArg("-datadir", ""))); QMessageBox::critical( nullptr, PACKAGE_NAME, QObject::tr( "Error: Specified data directory \"%1\" does not exist.") .arg(QString::fromStdString(gArgs.GetArg("-datadir", "")))); return EXIT_FAILURE; } if (!node->readConfigFiles(error)) { node->initError( strprintf("Error reading configuration file: %s\n", error)); QMessageBox::critical( nullptr, PACKAGE_NAME, QObject::tr("Error: Cannot parse configuration file: %1.") .arg(QString::fromStdString(error))); return EXIT_FAILURE; } /// 7. Determine network (and switch to network specific options) // - Do not call Params() before this step. // - Do this after parsing the configuration file, as the network can be // switched there. // - QSettings() will use the new application name after this, resulting in // network-specific settings. // - Needs to be done before createOptionsModel. // Check for -chain, -testnet or -regtest parameter (Params() calls are only // valid after this clause) try { node->selectParams(gArgs.GetChainName()); } catch (std::exception &e) { node->initError(strprintf("%s\n", e.what())); QMessageBox::critical(nullptr, PACKAGE_NAME, QObject::tr("Error: %1").arg(e.what())); return EXIT_FAILURE; } #ifdef ENABLE_WALLET // Parse URIs on command line -- this can affect Params() PaymentServer::ipcParseCommandLine(*node, argc, argv); #endif if (!node->initSettings(error)) { node->initError(Untranslated(error).original); QMessageBox::critical(nullptr, PACKAGE_NAME, QObject::tr("Error initializing settings: %1") .arg(QString::fromStdString(error))); return EXIT_FAILURE; } QScopedPointer networkStyle( NetworkStyle::instantiate(Params().NetworkIDString())); assert(!networkStyle.isNull()); // Allow for separate UI settings for testnets QApplication::setApplicationName(networkStyle->getAppName()); // Re-initialize translations after changing application name (language in // network-specific settings can be different) initTranslations(qtTranslatorBase, qtTranslator, translatorBase, translator); #ifdef ENABLE_WALLET /// 8. URI IPC sending // - Do this early as we don't want to bother initializing if we are just // calling IPC // - Do this *after* setting up the data directory, as the data directory // hash is used in the name // of the server. // - Do this after creating app and setting up translations, so errors are // translated properly. if (PaymentServer::ipcSendCommandLine()) { exit(EXIT_SUCCESS); } // Start up the payment server early, too, so impatient users that click on // bitcoincash: links repeatedly have their payment requests routed to this // process: if (WalletModel::isWalletEnabled()) { app.createPaymentServer(); } #endif // ENABLE_WALLET /// 9. Main GUI initialization // Install global event filter that makes sure that long tooltips can be // word-wrapped. app.installEventFilter( new GUIUtil::ToolTipToRichTextFilter(TOOLTIP_WRAP_THRESHOLD, &app)); #if defined(Q_OS_WIN) // Install global event filter for processing Windows session related // Windows messages (WM_QUERYENDSESSION and WM_ENDSESSION) qApp->installNativeEventFilter(new WinShutdownMonitor()); #endif // Install qDebug() message handler to route to debug.log qInstallMessageHandler(DebugMessageHandler); // Allow parameter interaction before we create the options model app.parameterSetup(); // Load GUI settings from QSettings app.createOptionsModel(gArgs.GetBoolArg("-resetguisettings", false)); if (did_show_intro) { // Store intro dialog settings other than datadir (network specific) app.SetPrune(prune, true); } // Get global config Config &config = const_cast(GetConfig()); if (gArgs.GetBoolArg("-splash", DEFAULT_SPLASHSCREEN) && !gArgs.GetBoolArg("-min", false)) { app.createSplashScreen(networkStyle.data()); } RPCServer rpcServer; util::Ref context{node}; HTTPRPCRequestProcessor httpRPCRequestProcessor(config, rpcServer, context); try { app.createWindow(&config, networkStyle.data()); // Perform base initialization before spinning up // initialization/shutdown thread. This is acceptable because this // function only contains steps that are quick to execute, so the GUI // thread won't be held up. if (!app.baseInitialize(config)) { // A dialog with detailed error will have been shown by InitError() return EXIT_FAILURE; } app.requestInitialize(config, rpcServer, httpRPCRequestProcessor); #if defined(Q_OS_WIN) WinShutdownMonitor::registerShutdownBlockReason( QObject::tr("%1 didn't yet exit safely...").arg(PACKAGE_NAME), (HWND)app.getMainWinId()); #endif app.exec(); app.requestShutdown(config); app.exec(); return app.getReturnValue(); } catch (const std::exception &e) { PrintExceptionContinue(&e, "Runaway exception"); app.handleRunawayException( QString::fromStdString(node->getWarnings("gui"))); } catch (...) { PrintExceptionContinue(nullptr, "Runaway exception"); app.handleRunawayException( QString::fromStdString(node->getWarnings("gui"))); } return EXIT_FAILURE; } diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index 56be64d9d..5657c59ad 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -1,2189 +1,2189 @@ // Copyright (c) 2010 Satoshi Nakamoto // Copyright (c) 2009-2016 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include