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|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2010 InspIRCd Development Team
* See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include <sqlite3.h>
#include "sql.h"
/* $ModDesc: sqlite3 provider */
/* $CompileFlags: pkgconfversion("sqlite3","3.3") pkgconfincludes("sqlite3","/sqlite3.h","") */
/* $LinkerFlags: pkgconflibs("sqlite3","/libsqlite3.so","-lsqlite3") */
/* $NoPedantic */
class SQLConn;
typedef std::map<std::string, SQLConn*> ConnMap;
class SQLite3Result : public SQLResult
{
public:
int currentrow;
int rows;
std::vector<std::string> columns;
std::vector<SQLEntries> fieldlists;
SQLite3Result() : currentrow(0), rows(0)
{
}
~SQLite3Result()
{
}
virtual int Rows()
{
return rows;
}
virtual bool GetRow(SQLEntries& result)
{
if (currentrow < rows)
{
result.assign(fieldlists[currentrow].begin(), fieldlists[currentrow].end());
currentrow++;
return true;
}
else
{
result.clear();
return false;
}
}
virtual void GetCols(std::vector<std::string>& result)
{
result.assign(columns.begin(), columns.end());
}
};
class SQLConn : public SQLProvider
{
private:
sqlite3* conn;
reference<ConfigTag> config;
public:
SQLConn(Module* Parent, ConfigTag* tag) : SQLProvider(Parent, "SQL/" + tag->getString("id")), config(tag)
{
std::string host = tag->getString("hostname");
if (sqlite3_open_v2(host.c_str(), &conn, SQLITE_OPEN_READWRITE, 0) != SQLITE_OK)
{
ServerInstance->Logs->Log("m_sqlite3",DEFAULT, "WARNING: Could not open DB with id: " + tag->getString("id"));
conn = NULL;
}
}
~SQLConn()
{
sqlite3_interrupt(conn);
sqlite3_close(conn);
}
void Query(SQLQuery* query)
{
SQLite3Result res;
sqlite3_stmt *stmt;
int err = sqlite3_prepare_v2(conn, query->query.c_str(), query->query.length(), &stmt, NULL);
if (err != SQLITE_OK)
{
SQLerror error(SQL_QSEND_FAIL, sqlite3_errmsg(conn));
query->OnError(error);
return;
}
int cols = sqlite3_column_count(stmt);
res.columns.resize(cols);
for(int i=0; i < cols; i++)
{
res.columns[i] = sqlite3_column_name(stmt, i);
}
while (1)
{
err = sqlite3_step(stmt);
if (err == SQLITE_ROW)
{
// Add the row
res.fieldlists.resize(res.rows + 1);
res.fieldlists[res.rows].resize(cols);
for(int i=0; i < cols; i++)
{
const char* txt = (const char*)sqlite3_column_text(stmt, i);
if (txt)
res.fieldlists[res.rows][i] = SQLEntry(txt);
}
res.rows++;
}
else if (err == SQLITE_DONE)
{
query->OnResult(res);
break;
}
else
{
SQLerror error(SQL_QREPLY_FAIL, sqlite3_errmsg(conn));
query->OnError(error);
break;
}
}
sqlite3_finalize(stmt);
}
std::string FormatQuery(const std::string& q, const ParamL& p)
{
std::string res;
unsigned int param = 0;
for(std::string::size_type i = 0; i < q.length(); i++)
{
if (q[i] != '?')
res.push_back(q[i]);
else
{
// TODO numbered parameter support ('?1')
if (param < p.size())
{
char* escaped = sqlite3_mprintf("%q", p[param++].c_str());
res.append(escaped);
sqlite3_free(escaped);
}
}
}
return res;
}
std::string FormatQuery(const std::string& q, const ParamM& p)
{
std::string res;
for(std::string::size_type i = 0; i < q.length(); i++)
{
if (q[i] != '$')
res.push_back(q[i]);
else
{
std::string field;
i++;
while (i < q.length() && isalpha(q[i]))
field.push_back(q[i++]);
i--;
ParamM::const_iterator it = p.find(field);
if (it != p.end())
{
char* escaped = sqlite3_mprintf("%q", it->second.c_str());
res.append(escaped);
sqlite3_free(escaped);
}
}
}
return res;
}
virtual void submit(SQLQuery* query)
{
Query(query);
delete query;
}
};
class ModuleSQLite3 : public Module
{
private:
ConnMap conns;
public:
ModuleSQLite3()
{
}
void init()
{
ReadConf();
Implementation eventlist[] = { I_OnRehash };
ServerInstance->Modules->Attach(eventlist, this, 1);
}
virtual ~ModuleSQLite3()
{
ClearConns();
}
void ClearConns()
{
for(ConnMap::iterator i = conns.begin(); i != conns.end(); i++)
{
SQLConn* conn = i->second;
ServerInstance->Modules->DelService(*conn);
delete conn;
}
conns.clear();
}
void ReadConf()
{
ClearConns();
ConfigTagList tags = ServerInstance->Config->ConfTags("database");
for(ConfigIter i = tags.first; i != tags.second; i++)
{
if (i->second->getString("module", "sqlite") != "sqlite")
continue;
SQLConn* conn = new SQLConn(this, i->second);
conns.insert(std::make_pair(i->second->getString("id"), conn));
ServerInstance->Modules->AddService(*conn);
}
}
void OnRehash(User* user)
{
ReadConf();
}
Version GetVersion()
{
return Version("sqlite3 provider", VF_VENDOR);
}
};
MODULE_INIT(ModuleSQLite3)
|
