--- /dev/null
+/*
+ * Sone - PluginConnector.kt - Copyright © 2010–2019 David Roden
+ *
+ * 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.freenet.plugin
+
+import freenet.support.*
+import freenet.support.api.*
+
+/**
+ * Interface for talking to other plugins. Other plugins are identified by their
+ * name and a unique connection identifier.
+ */
+interface PluginConnector {
+
+ /**
+ * Sends a message to another plugin running in the same node.
+ *
+ * @param pluginName The fully qualified name of the plugin
+ * @param fields The message being sent
+ * @param data Optional data
+ * @return The reply from the plugin
+ * @throws PluginException if the plugin identified by [pluginName] does not exist
+ */
+ @Throws(PluginException::class)
+ suspend fun sendRequest(pluginName: String, fields: SimpleFieldSet, data: Bucket? = null): PluginReply
+
+}
+
+data class PluginReply(val fields: SimpleFieldSet, val data: Bucket?)