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/*
*
* (C) 2003-2024 Anope Team
* Contact us at team@anope.org
*
* Please read COPYING and README for further details.
*/
#include "module.h"
struct Rewrite
{
Anope::string client, source_message, target_message, desc;
bool Matches(const std::vector<Anope::string> &message)
{
std::vector<Anope::string> sm;
spacesepstream(this->source_message).GetTokens(sm);
for (unsigned i = 0; i < sm.size(); ++i)
if (i >= message.size() || (sm[i] != "$" && !sm[i].equals_ci(message[i])))
return false;
return true;
}
Anope::string Process(CommandSource &source, const std::vector<Anope::string> ¶ms)
{
spacesepstream sep(this->target_message);
Anope::string token, message;
while (sep.GetToken(token))
{
if (token[0] != '$')
message += " " + token;
else if (token == "$me")
message += " " + source.GetNick();
else
{
int num = -1, end = -1;
try
{
Anope::string num_str = token.substr(1);
size_t hy = num_str.find('-');
if (hy == Anope::string::npos)
{
num = convertTo<int>(num_str);
end = num + 1;
}
else
{
num = convertTo<int>(num_str.substr(0, hy));
if (hy == num_str.length() - 1)
end = params.size();
else
end = convertTo<int>(num_str.substr(hy + 1)) + 1;
}
}
catch (const ConvertException &)
{
continue;
}
for (int i = num; i < end && static_cast<unsigned>(i) < params.size(); ++i)
message += " " + params[i];
}
}
message.trim();
return message;
}
static std::vector<Rewrite> rewrites;
static Rewrite *Find(const Anope::string &client, const Anope::string &cmd)
{
for (unsigned i = 0; i < rewrites.size(); ++i)
{
Rewrite &r = rewrites[i];
if ((client.empty() || r.client.equals_ci(client)) && (r.source_message.equals_ci(cmd) || r.source_message.find_ci(cmd + " ") == 0))
return &r;
}
return NULL;
}
static Rewrite *Match(const Anope::string &client, const std::vector<Anope::string> ¶ms)
{
for (unsigned i = 0; i < rewrites.size(); ++i)
{
Rewrite &r = rewrites[i];
if ((client.empty() || r.client.equals_ci(client)) && r.Matches(params))
return &r;
}
return NULL;
}
};
std::vector<Rewrite> Rewrite::rewrites;
class RewriteCommand : public Command
{
public:
RewriteCommand(Module *creator) : Command(creator, "rewrite", 0, 0) { }
void Execute(CommandSource &source, const std::vector<Anope::string> ¶ms) anope_override
{
std::vector<Anope::string> full_params = params;
full_params.insert(full_params.begin(), source.command);
Rewrite *r = Rewrite::Match(!source.c ? source.service->nick : "", full_params);
if (r != NULL)
{
Anope::string new_message = r->Process(source, full_params);
Log(LOG_DEBUG) << "m_rewrite: Rewrote '" << source.command << (!params.empty() ? " " + params[0] : "") << "' to '" << new_message << "' using '" << r->source_message << "'";
source.service = BotInfo::Find(r->client, true);
if (!source.service)
return;
Command::Run(source, new_message);
}
else
Log() << "m_rewrite: Unable to rewrite '" << source.command << (!params.empty() ? " " + params[0] : "") << "'";
}
void OnServHelp(CommandSource &source) anope_override
{
Rewrite *r = Rewrite::Find(!source.c ? source.service->nick : "", source.command);
if (r != NULL && !r->desc.empty())
{
this->SetDesc(r->desc);
Command::OnServHelp(source);
}
}
bool OnHelp(CommandSource &source, const Anope::string &subcommand) anope_override
{
Rewrite *r = Rewrite::Find(!source.c ? source.service->nick : "", source.command);
if (r != NULL && !r->desc.empty())
{
source.Reply(r->desc);
size_t sz = r->target_message.find(' ');
source.Reply(_("This command is an alias to the command %s."), sz != Anope::string::npos ? r->target_message.substr(0, sz).c_str() : r->target_message.c_str());
return true;
}
return false;
}
};
class ModuleRewrite : public Module
{
RewriteCommand cmdrewrite;
public:
ModuleRewrite(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, VENDOR | EXTRA), cmdrewrite(this)
{
}
void OnReload(Configuration::Conf *conf) anope_override
{
Rewrite::rewrites.clear();
for (int i = 0; i < conf->CountBlock("command"); ++i)
{
Configuration::Block *block = conf->GetBlock("command", i);
if (!block->Get<bool>("rewrite"))
continue;
Rewrite rw;
rw.client = block->Get<const Anope::string>("service");
rw.source_message = block->Get<const Anope::string>("rewrite_source");
rw.target_message = block->Get<const Anope::string>("rewrite_target");
rw.desc = block->Get<const Anope::string>("rewrite_description");
if (rw.client.empty() || rw.source_message.empty() || rw.target_message.empty())
continue;
Rewrite::rewrites.push_back(rw);
}
}
};
MODULE_INIT(ModuleRewrite)
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