X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/7df336e60c959c440b2c330f7a7ca9b0251db2a1..afcbfd1a09e22ff4839ba5db42047c96f355506c:/projects/stargazer/plugins/configuration/sgconfig/conn.cpp diff --git a/projects/stargazer/plugins/configuration/sgconfig/conn.cpp b/projects/stargazer/plugins/configuration/sgconfig/conn.cpp index 1d5d0aff..71de7356 100644 --- a/projects/stargazer/plugins/configuration/sgconfig/conn.cpp +++ b/projects/stargazer/plugins/configuration/sgconfig/conn.cpp @@ -22,12 +22,14 @@ #include "stg/admins.h" #include "stg/admin.h" +#include "stg/logger.h" #include "stg/blowfish.h" #include "stg/bfstream.h" #include "stg/common.h" #include #include +#include #include #include @@ -43,7 +45,8 @@ const char Conn::OK_LOGINS[] = "OKLS"; const char Conn::ERR_LOGINS[] = "ERLS"; Conn::Conn(const BASE_PARSER::REGISTRY & registry, - ADMINS & admins, int sock, const sockaddr_in& addr) + ADMINS & admins, int sock, const sockaddr_in& addr, + PLUGIN_LOGGER & logger) : m_registry(registry), m_admins(admins), m_admin(NULL), @@ -56,7 +59,13 @@ Conn::Conn(const BASE_PARSER::REGISTRY & registry, m_buffer(m_header), m_bufferSize(sizeof(m_header)), m_stream(NULL), + m_logger(logger), +#ifdef DUMPCRYPTO + m_dataState(false, *this), + m_dumper(endpoint()) +#else m_dataState(false, *this) +#endif { if (m_xmlParser == NULL) throw Error("Failed to create XML parser."); @@ -64,28 +73,6 @@ Conn::Conn(const BASE_PARSER::REGISTRY & registry, XML_ParserReset(m_xmlParser, NULL); XML_SetElementHandler(m_xmlParser, ParseXMLStart, ParseXMLEnd); XML_SetUserData(m_xmlParser, this); - - /*m_parsers.push_back(new STG::PARSER::GET_SERVER_INFO(m_settings, m_users, m_tariffs)); - - m_parsers.push_back(new PARSER_GET_USERS); - m_parsers.push_back(new PARSER_GET_USER); - m_parsers.push_back(new PARSER_CHG_USER); - m_parsers.push_back(new PARSER_ADD_USER); - m_parsers.push_back(new PARSER_DEL_USER); - m_parsers.push_back(new PARSER_CHECK_USER); - m_parsers.push_back(new PARSER_SEND_MESSAGE); - m_parsers.push_back(new PARSER_AUTH_BY); - m_parsers.push_back(new PARSER_USER_INFO); - - m_parsers.push_back(new PARSER_GET_TARIFFS); - m_parsers.push_back(new PARSER_ADD_TARIFF); - m_parsers.push_back(new PARSER_DEL_TARIFF); - m_parsers.push_back(new PARSER_CHG_TARIFF); - - m_parsers.push_back(new PARSER_GET_ADMINS); - m_parsers.push_back(new PARSER_CHG_ADMIN); - m_parsers.push_back(new PARSER_DEL_ADMIN); - m_parsers.push_back(new PARSER_ADD_ADMIN);*/ } Conn::~Conn() @@ -94,6 +81,9 @@ Conn::~Conn() close(m_sock); XML_ParserFree(m_xmlParser); + + delete m_stream; + delete m_parser; } bool Conn::Read() @@ -101,10 +91,21 @@ bool Conn::Read() ssize_t res = read(m_sock, m_buffer, m_bufferSize); if (res < 0) { - // TODO: log it + m_state = ERROR; + Log(__FILE__, "Failed to read data from " + endpoint() + ". Reason: '" + strerror(errno) + "'"); + return false; + } + if (res == 0 && m_state != DATA) // EOF is ok for data. + { + m_state = ERROR; + Log(__FILE__, "Failed to read data from " + endpoint() + ". Unexpected EOF."); return false; } +#ifdef DUMPCRYPTO + m_dumper.write(m_buffer, res); +#endif m_bufferSize -= res; + m_buffer = static_cast(m_buffer) + res; return HandleBuffer(res); } @@ -113,7 +114,8 @@ bool Conn::WriteAnswer(const void* buffer, size_t size) ssize_t res = write(m_sock, buffer, size); if (res < 0) { - // TODO: log it + m_state = ERROR; + Log(__FILE__, "Failed to write data to " + endpoint() + ". Reason: '" + strerror(errno) + "'."); return false; } return true; @@ -121,7 +123,7 @@ bool Conn::WriteAnswer(const void* buffer, size_t size) BASE_PARSER * Conn::GetParser(const std::string & tag) const { - BASE_PARSER::REGISTRY::const_iterator it = m_registry.find(tag); + BASE_PARSER::REGISTRY::const_iterator it = m_registry.find(ToLower(tag)); if (it == m_registry.end()) return NULL; return it->second->create(*m_admin); @@ -150,23 +152,24 @@ bool Conn::HandleHeader() { if (strncmp(m_header, STG_HEADER, sizeof(m_header)) != 0) { - WriteAnswer(ERR_HEADER, sizeof(ERR_HEADER)); - // TODO: log it + Log(__FILE__, "Received invalid header from " + endpoint() + "."); + WriteAnswer(ERR_HEADER, sizeof(ERR_HEADER) - 1); // Without \0 m_state = ERROR; return false; } m_state = LOGIN; m_buffer = m_login; m_bufferSize = sizeof(m_login); - return WriteAnswer(OK_HEADER, sizeof(OK_HEADER)); + return WriteAnswer(OK_HEADER, sizeof(OK_HEADER) - 1); // Without \0 } bool Conn::HandleLogin() { if (m_admins.Find(m_login, &m_admin)) // ADMINS::Find returns true on error. { - WriteAnswer(ERR_LOGIN, sizeof(ERR_LOGIN)); - // TODO: log it + std::string login(m_login, strnlen(m_login, sizeof(m_login))); + Log(__FILE__, "Received invalid login '" + ToPrintable(login) + "' from " + endpoint() + "."); + WriteAnswer(ERR_LOGIN, sizeof(ERR_LOGIN) - 1); // Without \0 m_state = ERROR; return false; } @@ -174,7 +177,7 @@ bool Conn::HandleLogin() m_state = CRYPTO_LOGIN; m_buffer = m_cryptoLogin; m_bufferSize = sizeof(m_cryptoLogin); - return WriteAnswer(OK_LOGIN, sizeof(OK_LOGIN)); + return WriteAnswer(OK_LOGIN, sizeof(OK_LOGIN) - 1); // Without \0 } bool Conn::HandleCryptoLogin() @@ -186,8 +189,8 @@ bool Conn::HandleCryptoLogin() if (strncmp(m_login, login, sizeof(login)) != 0) { - WriteAnswer(ERR_LOGINS, sizeof(ERR_LOGINS)); - // TODO: log it + Log(__FILE__, "Attempt to connect with wrong password from " + m_admin->GetLogin() + "@" + endpoint() + "."); + WriteAnswer(ERR_LOGINS, sizeof(ERR_LOGINS) - 1); // Without \0 m_state = ERROR; return false; } @@ -196,12 +199,13 @@ bool Conn::HandleCryptoLogin() m_buffer = m_data; m_bufferSize = sizeof(m_data); m_stream = new STG::DECRYPT_STREAM(m_admin->GetPassword(), DataCallback, &m_dataState); - return WriteAnswer(OK_LOGINS, sizeof(OK_LOGINS)); + return WriteAnswer(OK_LOGINS, sizeof(OK_LOGINS) - 1); // Without \0 } bool Conn::HandleData(size_t size) { - m_stream->Put(m_buffer, size, size == 0 || memchr(m_buffer, 0, size) != NULL); + m_stream->Put(m_data, size, size == 0 || memchr(m_data, 0, size) != NULL); + m_buffer = m_data; return m_stream->IsOk(); } @@ -210,15 +214,20 @@ bool Conn::DataCallback(const void * block, size_t size, void * data) assert(data != NULL); DataState& state = *static_cast(data); - if (XML_Parse(state.conn.m_xmlParser, - static_cast(block), - size, state.final) == XML_STATUS_ERROR) + const char * xml = static_cast(block); + size_t length = strnlen(xml, size); + + state.final = state.final || length < size || size == 0; + + if (XML_Parse(state.conn.m_xmlParser, xml, length, state.final) == XML_STATUS_ERROR) { - // TODO: log it - printfd(__FILE__, "XML parse error at line %d, %d: %s. Is final: %d", + state.conn.Log(__FILE__, "Received invalid XML from " + state.conn.m_admin->GetLogin() + "@" + state.conn.endpoint() + "."); + printfd(__FILE__, "XML parse error at line %d, %d: %s. Is final: %d\n", static_cast(XML_GetCurrentLineNumber(state.conn.m_xmlParser)), static_cast(XML_GetCurrentColumnNumber(state.conn.m_xmlParser)), XML_ErrorString(XML_GetErrorCode(state.conn.m_xmlParser)), (int)state.final); + printfd(__FILE__, "Data block: '%s' of size %d\n", xml, length); + state.conn.m_state = ERROR; return false; } @@ -226,7 +235,7 @@ bool Conn::DataCallback(const void * block, size_t size, void * data) { if (!state.conn.WriteResponse()) { - // TODO: log it + state.conn.Log(__FILE__, "Failed to write response to " + state.conn.m_admin->GetLogin() + "@" + state.conn.endpoint() + "."); state.conn.m_state = ERROR; return false; } @@ -246,7 +255,7 @@ void Conn::ParseXMLStart(void * data, const char * el, const char ** attr) if (conn.m_parser == NULL) { - // TODO: log it + conn.Log(__FILE__, "Received unknown command '" + std::string(el) + "' from " + conn.m_admin->GetLogin() + "@" + conn.endpoint() + "."); conn.m_state = ERROR; return; } @@ -261,7 +270,7 @@ void Conn::ParseXMLEnd(void * data, const char * el) if (conn.m_parser == NULL) { - // TODO: log it + // No need to log it. conn.m_state = ERROR; return; } @@ -272,7 +281,14 @@ void Conn::ParseXMLEnd(void * data, const char * el) bool Conn::WriteResponse() { STG::ENCRYPT_STREAM stream(m_admin->GetPassword(), WriteCallback, this); - const std::string & answer = m_parser->GetAnswer(); + std::string answer; + if (m_parser != NULL) + answer = m_parser->GetAnswer(); + else + answer = ""; + delete m_parser; + m_parser = NULL; + printfd(__FILE__, "Writing %d bytes of answer.\n", answer.length()); stream.Put(answer.c_str(), answer.length() + 1 /* including \0 */, true /* final */); return stream.IsOk(); } @@ -283,3 +299,9 @@ bool Conn::WriteCallback(const void * block, size_t size, void * data) Conn & conn = *static_cast(data); return WriteAll(conn.m_sock, block, size);; } + +void Conn::Log(const char * file, const std::string & message) +{ + printfd(file, "%s\n", message.c_str()); + m_logger(message); +}