Add setting to hide mature content from ContentDB

builtin/mainmenu/dlg_contentstore.lua

@@ -285,9 +285,14 @@ function store.load()
 	local show_nonfree = core.settings:get_bool("show_nonfree_packages")
 	local url = base_url ..
 		"/api/packages/?type=mod&type=game&type=txp&protocol_version=" ..
-		core.get_max_supp_proto() ..
-		"&nonfree=" ..
-		(show_nonfree and "true" or "false")
+		core.get_max_supp_proto()
+
+	for _, item in pairs(core.settings:get("contentdb_flag_blacklist"):split(",")) do
+		item = item:trim()
+		if item ~= "" then
+			url = url .. "&hide=" .. item
+		end
+	end
 
 	core.download_file(url, target)
 

builtin/settingtypes.txt

@@ -1941,6 +1941,13 @@ num_emerge_threads (Number of emerge threads) int 0
 
 [Content Store]
 
-#    Show packages in the content store that do not qualify as 'free software'
+#    The URL for the content repository
+contentdb_url (ContentDB URL) string https://content.minetest.net
+
+#    Comma-separated list of flags to hide in the content repository.
+#    "nonfree" can be used to hide packages which do not qualify as 'free software',
 #    as defined by the Free Software Foundation.
-show_nonfree_packages (Show non-free packages) bool false
+#    You can also specify content ratings.
+#    These flags are independent from Minetest versions,
+#    so see a full list at https://content.minetest.net/help/content_flags/
+contentdb_flag_blacklist (ContentDB Flag Blacklist) string nonfree, desktop_default

src/defaultsettings.cpp

@@ -300,7 +300,11 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("font_size", font_size_str);
 	settings->setDefault("mono_font_size", font_size_str);
 	settings->setDefault("contentdb_url", "https://content.minetest.net");
-	settings->setDefault("show_nonfree_packages", "false");
+#ifdef __ANDROID__
+	settings->setDefault("contentdb_flag_blacklist", "nonfree, android_default");
+#else
+	settings->setDefault("contentdb_flag_blacklist", "nonfree, desktop_default");
+#endif
 
 
 	// Server