Feature #1766
More informative exceptions for misconfigurations
| Status: | Resolved | Start date: | 02/12/2014 | |
|---|---|---|---|---|
| Priority: | Low | Due date: | ||
| Assignee: | J. Moringen | % Done: | 100% | |
| Category: | C++ | |||
| Target version: | rsb-0.11 |
Description
When providing a malformed configuration string (as either env var or config file line), such as - in my case - an unescaped Windows path ( RSC_PLUGINS_CPP_PATH=C:\Users\myuser\path\rsbplugins ), RSB applications currently crash with a raw boost exception from the tokenizer, which is not very informative to the end user (at least to me it was not :-) ).
For user-friendliness, maybe those configuration exceptions could be caught and wrapped in a more informative Exception (along the lines of "Tokenizer failure - malformed configuration string: <MYVARNAME>=<myvalue>" or similar)?
Related issues
History
#1 Updated by J. Wienke over 9 years ago
Could you please provide the exception output and if possible backtrace that you were experiencing?
#2 Updated by R. Yaghoubzadeh over 9 years ago
It is a boost::escaped_list_error, and can easily be provoked by using unescaped backslashes in config strings (as a Windows user might easily do with path names). With "C:\plugins" the exception gets the argument "unknown escape sequence", with "C:\", "cannot end with escape". Of course it is nice to have escapeable strings as properties (and use double backslashes for Windows paths), but it would be nice to get a proper warning that it was a config string that caused a program abort ... I was quite puzzled at first.
One backtrace below (sorry, I just needed some time to recompile rsb here myself to get the debug symbols):
rsc0.10.dll!boost::escaped_list_separator<char,std::char_traits<char> >::do_escape<std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >(std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> > & next, std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> > end, std::basic_string<char,std::char_traits<char>,std::allocator<char> > & tok) Line 146 + 0x34 bytes rsc0.10.dll!boost::escaped_list_separator<char,std::char_traits<char> >::operator()<std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >(std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> > & next, std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> > end, std::basic_string<char,std::char_traits<char>,std::allocator<char> > & tok) Line 176 + 0x24 bytes rsc0.10.dll!boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >::increment() Line 52 + 0x31 bytes rsc0.10.dll!boost::iterator_core_access::increment<boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > >(boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > & f) Line 521 rsc0.10.dll!boost::iterator_facade<boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::basic_string<char,std::char_traits<char>,std::allocator<char> >,boost::forward_traversal_tag,std::basic_string<char,std::char_traits<char>,std::allocator<char> > const &,int>::operator++() Line 660 + 0xe bytes rsc0.10.dll!std::_Copy_impl<boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::back_insert_iterator<std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > > >(boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > _First, boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > _Last, std::back_insert_iterator<std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > > _Dest, std::_Nonscalar_ptr_iterator_tag __formal) Line 2143 + 0x15 bytes rsc0.10.dll!std::_Copy_impl<boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::back_insert_iterator<std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > > >(boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > _First, boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > _Last, std::back_insert_iterator<std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > > _Dest) Line 2165 + 0x6a bytes rsc0.10.dll!std::_Copy_impl<boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::back_insert_iterator<std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > > >(boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > _First, boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > _Last, std::back_insert_iterator<std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > > _Dest, std::input_iterator_tag __formal, std::input_iterator_tag __formal) Line 2186 + 0x4f bytes rsc0.10.dll!std::_Copy_impl<boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::back_insert_iterator<std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > > >(boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > _First, boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > _Last, std::back_insert_iterator<std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > > _Dest, std::tr1::integral_constant<bool,1> __formal) Line 2206 + 0x7b bytes rsc0.10.dll!std::copy<boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >,std::back_insert_iterator<std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > > >(boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > _First, boost::token_iterator<boost::escaped_list_separator<char,std::char_traits<char> >,std::_String_const_iterator<char,std::char_traits<char>,std::allocator<char> >,std::basic_string<char,std::char_traits<char>,std::allocator<char> > > _Last, std::back_insert_iterator<std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > > _Dest) Line 2227 + 0xa1 bytes rsc0.10.dll!rsc::plugins::Configurator::splitValue(const std::basic_string<char,std::char_traits<char>,std::allocator<char> > & value) Line 153 + 0x76 bytes rsc0.10.dll!rsc::plugins::Configurator::handleOption(const std::vector<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,std::allocator<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > > & key, const std::basic_string<char,std::char_traits<char>,std::allocator<char> > & value) Line 111 + 0x13 bytes rsc0.10.dll!rsc::config::ConfigFileSource::provideOptions(rsc::config::OptionHandler & handler) Line 88 + 0x24 bytes rsc0.10.dll!rsc::config::configure(rsc::config::OptionHandler & handler, const std::basic_string<char,std::char_traits<char>,std::allocator<char> > & configFileName, const std::basic_string<char,std::char_traits<char>,std::allocator<char> > & environmentVariablePrefix, int argc, const char * * argv, bool stripEnvironmentVariablePrefix, const boost::filesystem::path & prefix) Line 108 rsb.dll!rsb::Factory::Factory() Line 210 + 0x77 bytes rsb.dll!rsc::patterns::Singleton<rsb::Factory>::getInstance() Line 106 + 0x22 bytes rsb.dll!rsb::Factory::getInstanceBase() Line 169 rsb.dll!rsb::getFactory() Line 165
#3 Updated by J. Moringen over 9 years ago
- Status changed from New to In Progress
- Assignee set to J. Moringen
- Target version set to rsb-0.11
#4 Updated by J. Moringen over 9 years ago
- Status changed from In Progress to Resolved
- % Done changed from 0 to 100
Fixed by rsc:1ed34190.
New exception message should look like this:
$ RSB_PLUGINS_CPP_PATH='c:\foo' rsb-infocpp0.11 terminate called after throwing an instance of 'std::invalid_argument' what(): Invalid plugin load path (option plugins.cpp.path) value `c:\foo': unknown escape sequence Aborted