Only allow players with shout to chat

Fix regression of commit

5e507c9829 "Add server side ncurses terminal"

which allowed all players, even those without a shout priv, to chat.

Fixes #3362.

src/network/serverpackethandler.cpp

@@ -1063,7 +1063,8 @@ void Server::handleCommand_ChatMessage(NetworkPacket* pkt)
 	std::string name = player->getName();
 	std::wstring wname = narrow_to_wide(name);
 
-	std::wstring answer_to_sender = handleChat(name, wname, message, pkt->getPeerId());
+	std::wstring answer_to_sender = handleChat(name, wname, message,
+		true, pkt->getPeerId());
 	if (!answer_to_sender.empty()) {
 		// Send the answer to sender
 		SendChatMessage(pkt->getPeerId(), answer_to_sender);

src/server.cpp

@@ -2755,7 +2755,8 @@ void Server::handleChatInterfaceEvent(ChatEvent *evt)
 }
 
 std::wstring Server::handleChat(const std::string &name, const std::wstring &wname,
-	const std::wstring &wmessage, u16 peer_id_to_avoid_sending)
+	const std::wstring &wmessage, bool check_shout_priv,
+	u16 peer_id_to_avoid_sending)
 {
 	// If something goes wrong, this player is to blame
 	RollbackScopeActor rollback_scope(m_rollback,
@@ -2783,10 +2784,15 @@ std::wstring Server::handleChat(const std::string &name, const std::wstring &wna
 		else
 			line += L"-!- Invalid command: " + str_split(wcmd, L' ')[0];
 	} else {
-		line += L"<";
-		line += wname;
-		line += L"> ";
-		line += wmessage;
+		if (check_shout_priv && !checkPriv(name, "shout")) {
+			line += L"-!- You don't have permission to shout.";
+			broadcast_line = false;
+		} else {
+			line += L"<";
+			line += wname;
+			line += L"> ";
+			line += wmessage;
+		}
 	}
 
 	/*

src/server.h

@@ -481,6 +481,7 @@ private:
 	// This returns the answer to the sender of wmessage, or "" if there is none
 	std::wstring handleChat(const std::string &name, const std::wstring &wname,
 		const std::wstring &wmessage,
+		bool check_shout_priv = false,
 		u16 peer_id_to_avoid_sending = PEER_ID_INEXISTENT);
 	void handleAdminChat(const ChatEventChat *evt);