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/* RequiredLibraries: sqlite3 */
#include "module.h"
#include <sqlite3.h>
#include "sql.h"
/* SQLite3 API, based from InspiRCd */
/** A SQLite result
*/
class SQLiteResult : public SQLResult
{
public:
SQLiteResult(const SQLQuery &q, const Anope::string &fq) : SQLResult(q, fq)
{
}
SQLiteResult(const SQLQuery &q, const Anope::string &fq, const Anope::string &err) : SQLResult(q, fq, err)
{
}
void addRow(const std::map<Anope::string, Anope::string> &data)
{
this->entries.push_back(data);
}
};
/** A SQLite database, there can be multiple
*/
class SQLiteService : public SQLProvider
{
Anope::string database;
sqlite3 *sql;
Anope::string Escape(const Anope::string &query);
public:
SQLiteService(Module *o, const Anope::string &n, const Anope::string &d);
~SQLiteService();
void Run(SQLInterface *i, const SQLQuery &query);
SQLResult RunQuery(const SQLQuery &query);
SQLQuery CreateTable(const Anope::string &table, const SerializableBase::serialized_data &data);
SQLQuery GetTables();
Anope::string BuildQuery(const SQLQuery &q);
};
class ModuleSQLite : public Module
{
/* SQL connections */
std::map<Anope::string, SQLiteService *> SQLiteServices;
public:
ModuleSQLite(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, SUPPORTED)
{
Implementation i[] = { I_OnReload };
ModuleManager::Attach(i, this, sizeof(i) / sizeof(Implementation));
OnReload();
}
~ModuleSQLite()
{
for (std::map<Anope::string, SQLiteService *>::iterator it = this->SQLiteServices.begin(); it != this->SQLiteServices.end(); ++it)
delete it->second;
SQLiteServices.clear();
}
void OnReload()
{
ConfigReader config;
int i, num;
for (std::map<Anope::string, SQLiteService *>::iterator it = this->SQLiteServices.begin(); it != this->SQLiteServices.end();)
{
const Anope::string &cname = it->first;
SQLiteService *s = it->second;
++it;
for (i = 0, num = config.Enumerate("sqlite"); i < num; ++i)
if (config.ReadValue("sqlite", "name", "sqlite/main", i) == cname)
break;
if (i == num)
{
Log(LOG_NORMAL, "sqlite") << "SQLite: Removing server connection " << cname;
delete s;
this->SQLiteServices.erase(cname);
}
}
for (i = 0, num = config.Enumerate("sqlite"); i < num; ++i)
{
Anope::string connname = config.ReadValue("sqlite", "name", "sqlite/main", i);
if (this->SQLiteServices.find(connname) == this->SQLiteServices.end())
{
Anope::string database = config.ReadValue("sqlite", "database", "anope", i);
try
{
SQLiteService *ss = new SQLiteService(this, connname, database);
this->SQLiteServices[connname] = ss;
Log(LOG_NORMAL, "sqlite") << "SQLite: Successfully added database " << database;
}
catch (const SQLException &ex)
{
Log(LOG_NORMAL, "sqlite") << "SQLite: " << ex.GetReason();
}
}
}
}
};
SQLiteService::SQLiteService(Module *o, const Anope::string &n, const Anope::string &d)
: SQLProvider(o, n), database(d), sql(NULL)
{
int db = sqlite3_open_v2(database.c_str(), &this->sql, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0);
if (db != SQLITE_OK)
throw SQLException("Unable to open SQLite database " + database + ": " + sqlite3_errmsg(this->sql));
}
SQLiteService::~SQLiteService()
{
sqlite3_interrupt(this->sql);
sqlite3_close(this->sql);
}
void SQLiteService::Run(SQLInterface *i, const SQLQuery &query)
{
SQLResult res = this->RunQuery(query);
if (!res.GetError().empty())
i->OnError(res);
else
i->OnResult(res);
}
SQLResult SQLiteService::RunQuery(const SQLQuery &query)
{
Anope::string real_query = this->BuildQuery(query);
sqlite3_stmt *stmt;
int err = sqlite3_prepare_v2(this->sql, real_query.c_str(), real_query.length(), &stmt, NULL);
if (err != SQLITE_OK)
return SQLiteResult(query, real_query, sqlite3_errmsg(this->sql));
std::vector<Anope::string> columns;
int cols = sqlite3_column_count(stmt);
columns.resize(cols);
for (int i = 0; i < cols; ++i)
columns[i] = sqlite3_column_name(stmt, i);
SQLiteResult result(query, real_query);
do
{
err = sqlite3_step(stmt);
if (err == SQLITE_ROW)
{
std::map<Anope::string, Anope::string> items;
for (int i = 0; i < cols; ++i)
{
const char *data = reinterpret_cast<const char *>(sqlite3_column_text(stmt, i));
if (data && *data)
items[columns[i]] = data;
}
result.addRow(items);
}
}
while (err == SQLITE_ROW);
if (err != SQLITE_DONE)
return SQLiteResult(query, real_query, sqlite3_errmsg(this->sql));
return result;
}
SQLQuery SQLiteService::CreateTable(const Anope::string &table, const SerializableBase::serialized_data &data)
{
Anope::string query_text = "CREATE TABLE `" + table + "` (", key_buf;
for (SerializableBase::serialized_data::const_iterator it = data.begin(), it_end = data.end(); it != it_end; ++it)
{
query_text += "`" + it->first + "` ";
if (it->second.getType() == Serialize::DT_INT)
query_text += "int(11)";
else if (it->second.getMax() > 0)
query_text += "varchar(" + stringify(it->second.getMax()) + ")";
else
query_text += "text";
query_text += ",";
if (it->second.getKey())
{
if (key_buf.empty())
key_buf = "UNIQUE (";
key_buf += "`" + it->first + "`,";
}
}
if (!key_buf.empty())
{
key_buf.erase(key_buf.end() - 1);
key_buf += ")";
query_text += " " + key_buf;
}
else
query_text.erase(query_text.end() - 1);
query_text += ")";
return SQLQuery(query_text);
}
SQLQuery SQLiteService::GetTables()
{
return SQLQuery("SELECT name FROM sqlite_master WHERE type='table'");
}
Anope::string SQLiteService::Escape(const Anope::string &query)
{
char *e = sqlite3_mprintf("%q", query.c_str());
Anope::string buffer = e;
sqlite3_free(e);
return buffer;
}
Anope::string SQLiteService::BuildQuery(const SQLQuery &q)
{
Anope::string real_query = q.query;
for (std::map<Anope::string, Anope::string>::const_iterator it = q.parameters.begin(), it_end = q.parameters.end(); it != it_end; ++it)
real_query = real_query.replace_all_cs("@" + it->first + "@", "'" + this->Escape(it->second) + "'");
return real_query;
}
MODULE_INIT(ModuleSQLite)
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