X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/107a6a8d0b9eae3c4375a685e49dcf90bea69335..8ae4c5e8f4f88c52eb2947f9c9195f132785b46a:/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..8bba49be 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 <cassert>
 #include <cstring>
+#include <cerrno>
 
 #include <unistd.h>
 #include <sys/socket.h>
@@ -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),
@@ -56,6 +59,7 @@ Conn::Conn(const BASE_PARSER::REGISTRY & registry,
       m_buffer(m_header),
       m_bufferSize(sizeof(m_header)),
       m_stream(NULL),
+      m_logger(logger),
       m_dataState(false, *this)
 {
     if (m_xmlParser == NULL)
@@ -64,28 +68,6 @@ 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()
@@ -101,7 +83,14 @@ 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 " + inet_ntostring(IP()) + ":" + x2str(Port()) + ". 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 " + inet_ntostring(IP()) + ":" + x2str(Port()) + ". Unexpected EOF.");
         return false;
     }
     m_bufferSize -= res;
@@ -113,7 +102,8 @@ 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 " + inet_ntostring(IP()) + ":" + x2str(Port()) + ". Reason: '" + strerror(errno) + "'.");
         return false;
     }
     return true;
@@ -121,7 +111,7 @@ 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 +140,24 @@ 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 " + inet_ntostring(IP()) + ":" + x2str(Port()) + ".");
+        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 " + inet_ntostring(IP()) + ":" + x2str(Port()) + ".");
+        WriteAnswer(ERR_LOGIN, sizeof(ERR_LOGIN) - 1); // Without \0
         m_state = ERROR;
         return false;
     }
@@ -174,7 +165,7 @@ 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 +177,8 @@ 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() + "@" + inet_ntostring(IP()) + ":" + x2str(Port()) + ".");
+        WriteAnswer(ERR_LOGINS, sizeof(ERR_LOGINS) - 1); // Without \0
         m_state = ERROR;
         return false;
     }
@@ -196,7 +187,7 @@ 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)
@@ -210,15 +201,20 @@ bool Conn::DataCallback(const void * block, size_t size, void * data)
     assert(data != NULL);
     DataState& state = *static_cast<DataState *>(data);
 
-    if (XML_Parse(state.conn.m_xmlParser,
-                  static_cast<const char *>(block),
-                  size, state.final) == XML_STATUS_ERROR)
+    const char * xml = static_cast<const char *>(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() + "@" + inet_ntostring(state.conn.IP()) + ":" + x2str(state.conn.Port()) + ".");
+        printfd(__FILE__, "XML parse error at line %d, %d: %s. Is final: %d\n",
                   static_cast<int>(XML_GetCurrentLineNumber(state.conn.m_xmlParser)),
                   static_cast<int>(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 +222,7 @@ 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() + "@" + inet_ntostring(state.conn.IP()) + ":" + x2str(state.conn.Port()) + ".");
             state.conn.m_state = ERROR;
             return false;
         }
@@ -246,7 +242,7 @@ 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() + "@" + inet_ntostring(conn.IP()) + ":" + x2str(conn.Port()) + ".");
         conn.m_state = ERROR;
         return;
     }
@@ -261,7 +257,7 @@ 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 +268,12 @@ 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 = "<Error result=\"Unknown command.\"/>";
+    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 +284,9 @@ bool Conn::WriteCallback(const void * block, size_t size, void * data)
     Conn & conn = *static_cast<Conn *>(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);
+}