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If a user runs an invalid command try to suggest a valid one.

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This commit is contained in:
Sadie Powell
2024-02-29 21:56:14 +00:00
parent e0ac5509b4
commit 1c1645096f
5 changed files with 103 additions and 11 deletions
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src/command.cpp
+45 -9
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@@ -201,11 +201,53 @@ void Command::OnSyntaxError(CommandSource &source, const Anope::string &subcomma
source.Reply(MORE_INFO, Config->StrictPrivmsg.c_str(), source.service->nick.c_str(), source.command.c_str());
}
namespace
{
void HandleUnknownCommand(CommandSource& source, const Anope::string &message)
{
// Try to find a similar command.
size_t distance = Config->GetBlock("options")->Get<size_t>("didyoumeandifference", "4");
Anope::string similar;
auto umessage = message.upper();
for (const auto &[command, info] : source.service->commands)
{
if (info.hide || command == message)
continue; // Don't suggest a hidden alias or a missing command.
size_t dist = Anope::Distance(umessage, command);
if (dist < distance)
{
distance = dist;
similar = command;
}
}
bool has_help = source.service->commands.find("HELP") != source.service->commands.end();
if (has_help && similar.empty())
{
source.Reply(_("Unknown command \002%s\002. \"%s%s HELP\" for help."), message.c_str(),
Config->StrictPrivmsg.c_str(), source.service->nick.c_str());
}
else if (has_help)
{
source.Reply(_("Unknown command \002%s\002. Did you mean \002%s\002? \"%s%s HELP\" for help."),
message.c_str(), similar.c_str(), Config->StrictPrivmsg.c_str(), source.service->nick.c_str());
}
else if (similar.empty())
{
source.Reply(_("Unknown command \002%s\002. Did you mean \002%s\002?"), message.c_str(), similar.c_str());
}
else
{
source.Reply(_("Unknown command \002%s\002."), message.c_str());
}
}
}
void Command::Run(CommandSource &source, const Anope::string &message)
{
std::vector<Anope::string> params;
spacesepstream(message).GetTokens(params);
bool has_help = source.service->commands.find("HELP") != source.service->commands.end();
CommandInfo::map::const_iterator it = source.service->commands.end();
unsigned count = 0;
@@ -222,10 +264,7 @@ void Command::Run(CommandSource &source, const Anope::string &message)
if (it == source.service->commands.end())
{
if (has_help)
source.Reply(_("Unknown command \002%s\002. \"%s%s HELP\" for help."), message.c_str(), Config->StrictPrivmsg.c_str(), source.service->nick.c_str());
else
source.Reply(_("Unknown command \002%s\002."), message.c_str());
HandleUnknownCommand(source, message);
return;
}
@@ -233,10 +272,7 @@ void Command::Run(CommandSource &source, const Anope::string &message)
ServiceReference<Command> c("Command", info.name);
if (!c)
{
if (has_help)
source.Reply(_("Unknown command \002%s\002. \"%s%s HELP\" for help."), message.c_str(), Config->StrictPrivmsg.c_str(), source.service->nick.c_str());
else
source.Reply(_("Unknown command \002%s\002."), message.c_str());
HandleUnknownCommand(source, message);
Log(source.service) << "Command " << it->first << " exists on me, but its service " << info.name << " was not found!";
return;
}