From 9813552ebfe1f43fd394bde1e1e844cdb709bc60 2015-12-03 12:19:34
From: Jan Kaluza <jkaluza@redhat.com>
Date: 2015-12-03 12:19:34
Subject: [PATCH] Send api version to backend so it can use future features based on this version number

---

diff --git a/include/transport/NetworkPluginServer.h b/include/transport/NetworkPluginServer.h
index a579c70d831090f27d7d984fe49fac6aada08c65..ab64157f0b97f7e1887c007d80d16f525c29f8f1 100644
--- a/include/transport/NetworkPluginServer.h
+++ b/include/transport/NetworkPluginServer.h
@@ -43,6 +43,8 @@
 #include <Swiften/FileTransfer/FileTransfer.h>
 #define HAVE_SWIFTEN_3  (SWIFTEN_VERSION >= 0x030000)
 
+#define NETWORK_PLUGIN_API_VERSION (1)
+
 namespace Transport {
 
 class UserManager;
@@ -160,6 +162,7 @@ class NetworkPluginServer : Swift::XMPPParserClient {
 
 		void pingTimeout();
 		void sendPing(Backend *c);
+		void sendAPIVersion(Backend *c);
 		Backend *getFreeClient(bool acceptUsers = true, bool longRun = false, bool check = false);
 		void connectWaitingUsers();
 		void loginDelayFinished();
diff --git a/include/transport/protocol.proto b/include/transport/protocol.proto
index 78a3b9af60a8a3cc9e43d57b809911113061c150..d7bd76a9789c2ca6f44989f3f051ebfeb52cdb22 100644
--- a/include/transport/protocol.proto
+++ b/include/transport/protocol.proto
@@ -151,6 +151,10 @@ message BackendConfig {
 	required string config = 1;
 }
 
+message APIVersion {
+	required int32 version = 1;
+}
+
 message WrapperMessage {
 	enum Type { 
 		TYPE_CONNECTED 				= 1;
@@ -187,6 +191,7 @@ message WrapperMessage {
 		TYPE_CONV_MESSAGE_ACK		= 33;
 		TYPE_RAW_XML				= 34;
 		TYPE_BUDDIES				= 35;
+		TYPE_API_VERSION			= 36;
 	}
 	required Type type = 1;
 	optional bytes payload = 2;
diff --git a/src/NetworkPluginServer.cpp b/src/NetworkPluginServer.cpp
index 618bb6d2ba2f26539eae469cfc0fa314e41f9e3a..583e4601cb3b2c88a8ca8346f729760337005433 100644
--- a/src/NetworkPluginServer.cpp
+++ b/src/NetworkPluginServer.cpp
@@ -1936,6 +1936,22 @@ void NetworkPluginServer::sendPing(Backend *c) {
 // 	LOG4CXX_INFO(logger, "PING to " << c);
 }
 
+void NetworkPluginServer::sendAPIVersion(Backend *c) {
+
+	pbnetwork::APIVersion apiver;
+	apiver.set_version(NETWORK_PLUGIN_API_VERSION);
+
+	std::string message;
+	apiver.SerializeToString(&message);
+
+	WRAP(message, pbnetwork::WrapperMessage_Type_TYPE_API_VERSION);
+
+	if (c->connection) {
+		LOG4CXX_INFO(logger, "API Version to " << c << " (ID=" << c->id << ")");
+		send(c->connection, message);
+	}
+}
+
 void NetworkPluginServer::handlePIDTerminated(unsigned long pid) {
 	std::vector<unsigned long>::iterator log_id_it;
 	log_id_it = std::find(m_pids.begin(), m_pids.end(), pid);