Skipped lines that do no match a FIX prefix in FIX logs.

This is needed at the ICE where some messages can have new lines. We
use the new line separator to separate FIX messages so the parser was
getting confused when it saw multi-line messages.

src/lib/jetfix/store/FIXFileStore.cpp

@@ -19,6 +19,7 @@
 #include <fmt/format.h>
 #include <fstream>
 #include <thread>
+#include <regex>
 
 namespace bts {
 namespace jetfix {
@@ -113,6 +114,13 @@ std::string store_path(std::string base_path,
    return result.string();
 }
 
+bool is_valid_store_line(std::string const&line) {
+   std::regex rx("\\d\\d\\d\\d\\d\\d\\d\\d-"
+                 "\\d\\d:\\d\\d:\\d\\d\\."
+                 "\\d\\d\\d . 8=FIX\\.4\\.2.*");
+   return std::regex_match(line, rx);
+}
+
 std::map<uint32_t, InMsgBuffer>
 load_replay(config::JetFIX::Connection const &cfg, std::string const &path,
             uint32_t ) {
@@ -122,13 +130,14 @@ load_replay(config::JetFIX::Connection const &cfg, std::string const &path,
       std::ifstream f(path);
       std::string line_buffer;
       line_buffer.reserve(10 * 1024);
-      auto header_size = sizeof("20150427-19:05:17.032 < ") - 1;
       std::string date_buffer("20150427-19:05:17.032");
 
       for (;;) {
          std::getline(f, line_buffer);
          if (!f.eof()) {
-            bts_assert(line_buffer.size() > header_size);
+            if (!is_valid_store_line(line_buffer))
+               continue;
+            
             if (line_buffer[22] == '<') {
                auto ts =
                    datetime::parse_FIX_timestamp(line_buffer.substr(0, 21));

src/lib/jetfix/store/FIXFileStore.h

@@ -29,4 +29,6 @@ private:
    std::unique_ptr<PImpl> me;
 };
 
+bool is_valid_store_line(std::string const&) ;
+
 }}

src/lib/orderman/actors/ICEExecutionGateway.cpp

@@ -192,6 +192,10 @@ void ICEExecutionGateway::on_trader_login_timeout_expired()
       {         
          if(u.has_user_data() && u.user_data().has_exchange_user_data() && u.user_data().exchange_user_data().has_ice_data())
          {
+            if(!u.is_present())
+               continue;
+            if(!u.is_active())
+               continue;
             const auto& ice = u.user_data().exchange_user_data().ice_data();
             if(auth_traders.find(ice.authorized_trader()) == auth_traders.end())
             {