Added a new database format and sqlite support. Also moved db-convert to a module.

1 files changed, 235 insertions, 0 deletions

diff --git a/modules/extra/m_sqlite.cpp b/modules/extra/m_sqlite.cpp
new file mode 100644
index 000000000..adf244bbd
--- /dev/null
+++ b/modules/extra/m_sqlite.cpp
@@ -0,0 +1,235 @@
+/* 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);
+
+	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);
+}
+
+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)
+