attr-sql: Move plugin to libcharon

1 files changed, 129 insertions, 0 deletions

diff --git a/src/libcharon/plugins/attr_sql/attr_sql_plugin.c b/src/libcharon/plugins/attr_sql/attr_sql_plugin.c
new file mode 100644
index 000000000..dde90051a
--- /dev/null
+++ b/src/libcharon/plugins/attr_sql/attr_sql_plugin.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2013 Tobias Brunner
+ * Copyright (C) 2008 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include <hydra.h>
+#include <utils/debug.h>
+#include <plugins/plugin_feature.h>
+
+#include "attr_sql_plugin.h"
+#include "sql_attribute.h"
+
+typedef struct private_attr_sql_plugin_t private_attr_sql_plugin_t;
+
+/**
+ * private data of attr_sql plugin
+ */
+struct private_attr_sql_plugin_t {
+
+	/**
+	 * implements plugin interface
+	 */
+	attr_sql_plugin_t public;
+
+	/**
+	 * database connection instance
+	 */
+	database_t *db;
+
+	/**
+	 * configuration attributes
+	 */
+	sql_attribute_t *attribute;
+};
+
+METHOD(plugin_t, get_name, char*,
+	private_attr_sql_plugin_t *this)
+{
+	return "attr-sql";
+}
+
+/**
+ * Connect to database
+ */
+static bool open_database(private_attr_sql_plugin_t *this,
+						  plugin_feature_t *feature, bool reg, void *cb_data)
+{
+	if (reg)
+	{
+		char *uri;
+
+		uri = lib->settings->get_str(lib->settings,
+								"%s.plugins.attr-sql.database", NULL, lib->ns);
+		if (!uri)
+		{
+			DBG1(DBG_CFG, "attr-sql plugin: database URI not set");
+			return FALSE;
+		}
+
+		this->db = lib->db->create(lib->db, uri);
+		if (!this->db)
+		{
+			DBG1(DBG_CFG, "attr-sql plugin failed to connect to database");
+			return FALSE;
+		}
+		this->attribute = sql_attribute_create(this->db);
+		hydra->attributes->add_provider(hydra->attributes,
+										&this->attribute->provider);
+	}
+	else
+	{
+		hydra->attributes->remove_provider(hydra->attributes,
+										   &this->attribute->provider);
+		this->attribute->destroy(this->attribute);
+		this->db->destroy(this->db);
+	}
+	return TRUE;
+}
+
+METHOD(plugin_t, get_features, int,
+	private_attr_sql_plugin_t *this, plugin_feature_t *features[])
+{
+	static plugin_feature_t f[] = {
+		PLUGIN_CALLBACK((plugin_feature_callback_t)open_database, NULL),
+			PLUGIN_PROVIDE(CUSTOM, "attr-sql"),
+				PLUGIN_DEPENDS(DATABASE, DB_ANY),
+	};
+	*features = f;
+	return countof(f);
+}
+
+METHOD(plugin_t, destroy, void,
+	private_attr_sql_plugin_t *this)
+{
+	free(this);
+}
+
+/*
+ * see header file
+ */
+plugin_t *attr_sql_plugin_create()
+{
+	private_attr_sql_plugin_t *this;
+
+	INIT(this,
+		.public = {
+			.plugin = {
+				.get_name = _get_name,
+				.get_features = _get_features,
+				.destroy = _destroy,
+			},
+		},
+	);
+	lib->settings->add_fallback(lib->settings, "%s.plugins.attr-sql",
+								"libhydra.plugins.attr-sql", lib->ns);
+
+	return &this->public.plugin;
+}