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#include "module.h"
#include "../extra/sql.h"
class SQLCache : public Timer
{
typedef std::map<Anope::string, time_t, ci::less> cache_map;
cache_map cache;
public:
SQLCache() : Timer(300, Anope::CurTime, true) { }
bool Check(const Anope::string &item)
{
cache_map::iterator it = this->cache.find(item);
if (it != this->cache.end() && Anope::CurTime - it->second < 5)
return true;
this->cache[item] = Anope::CurTime;
return false;
}
void Tick(time_t)
{
for (cache_map::iterator it = this->cache.begin(), next_it; it != this->cache.end(); it = next_it)
{
next_it = it;
++next_it;
if (Anope::CurTime - it->second > 5)
this->cache.erase(it);
}
}
};
class MySQLLiveModule : public Module
{
service_reference<SQLProvider, Base> SQL;
SQLCache chan_cache, nick_cache, core_cache;
SQLResult RunQuery(const SQLQuery &query)
{
if (!this->SQL)
throw SQLException("Unable to locate SQL reference, is db_sql loaded and configured correctly?");
SQLResult res = SQL->RunQuery(query);
if (!res.GetError().empty())
throw SQLException(res.GetError());
return res;
}
public:
MySQLLiveModule(const Anope::string &modname, const Anope::string &creator) :
Module(modname, creator, DATABASE), SQL("")
{
this->OnReload();
Implementation i[] = { I_OnReload, I_OnFindChan, I_OnFindNick, I_OnFindCore, I_OnShutdown };
ModuleManager::Attach(i, this, sizeof(i) / sizeof(Implementation));
}
void OnReload()
{
ConfigReader config;
Anope::string engine = config.ReadValue("db_sql", "engine", "", 0);
this->SQL = engine;
}
void OnShutdown()
{
Implementation i[] = { I_OnFindChan, I_OnFindNick, I_OnFindCore };
for (size_t j = 0; j < 3; ++j)
ModuleManager::Detach(i[j], this);
}
void OnFindChan(const Anope::string &chname)
{
if (chan_cache.Check(chname))
return;
try
{
SQLQuery query("SELECT * FROM `ChannelInfo` WHERE `name` = @name@");
query.setValue("name", chname);
SQLResult res = this->RunQuery(query);
if (res.Rows() == 0)
{
delete cs_findchan(chname);
return;
}
SerializeType *sb = SerializeType::Find("ChannelInfo");
if (sb == NULL)
return;
Serializable::serialized_data data;
const std::map<Anope::string, Anope::string> &row = res.Row(0);
for (std::map<Anope::string, Anope::string>::const_iterator rit = row.begin(), rit_end = row.end(); rit != rit_end; ++rit)
data[rit->first] << rit->second;
sb->Create(data);
}
catch (const SQLException &ex)
{
Log(LOG_DEBUG) << "OnFindChan: " << ex.GetReason();
}
}
void OnFindNick(const Anope::string &nick)
{
if (nick_cache.Check(nick))
return;
try
{
SQLQuery query("SELECT * FROM `NickAlias` WHERE `nick` = @nick@");
query.setValue("nick", nick);
SQLResult res = this->RunQuery(query);
if (res.Rows() == 0)
{
delete findnick(nick);
return;
}
SerializeType *sb = SerializeType::Find("NickAlias");
if (sb == NULL)
return;
Serializable::serialized_data data;
const std::map<Anope::string, Anope::string> &row = res.Row(0);
for (std::map<Anope::string, Anope::string>::const_iterator rit = row.begin(), rit_end = row.end(); rit != rit_end; ++rit)
data[rit->first] << rit->second;
sb->Create(data);
}
catch (const SQLException &ex)
{
Log(LOG_DEBUG) << "OnFindNick: " << ex.GetReason();
}
}
void OnFindCore(const Anope::string &nick)
{
if (core_cache.Check(nick))
return;
try
{
SQLQuery query("SELECT * FROM `NickCore` WHERE `display` = @display@");
query.setValue("display", nick);
SQLResult res = this->RunQuery(query);
if (res.Rows() == 0)
{
delete findcore(nick);
return;
}
SerializeType *sb = SerializeType::Find("NickCore");
if (sb == NULL)
return;
Serializable::serialized_data data;
const std::map<Anope::string, Anope::string> &row = res.Row(0);
for (std::map<Anope::string, Anope::string>::const_iterator rit = row.begin(), rit_end = row.end(); rit != rit_end; ++rit)
data[rit->first] << rit->second;
sb->Create(data);
}
catch (const SQLException &ex)
{
Log(LOG_DEBUG) << "OnFindCore: " << ex.GetReason();
}
}
};
MODULE_INIT(MySQLLiveModule)
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