Fix muting API

common.lua

@@ -63,7 +63,7 @@ beerchat.allow_private_message = function(name, target)
 end
 
 beerchat.has_player_muted_player = function(name, other_name)
-	return not beerchat.execute_callbacks("before_check_muted", name, other_name)
+	return not beerchat.allow_private_message(other_name, name)
 end
 
 beerchat.is_player_subscribed_to_channel = function(name, channel)

hooks.lua

@@ -73,6 +73,13 @@ beerchat.execute_callbacks = function(trigger, ...)
 	return true
 end
 
+-- Log notification for bad event definition, use before_send_pm if possible
+
+beerchat.register_callback("before_check_muted", function()
+	minetest.log("warning", "Beerchat 'before_check_muted' event fired: this event has issues and should probably be "
+		.. "either deprecated or updated. Use 'before_send_pm' or beerchat.has_player_muted_player(a,b) if possible.")
+end, -1)
+
 -- TODO: harmonize callbacks
 
 -- called on every channel message

plugin/mute.lua

@@ -1,12 +1,12 @@
 
-local is_muted = function(name, target)
-	assert(type(target) == "string", "is_muted(name, target): target should be a string, got "..type(target)..".")
-	local player = minetest.get_player_by_name(target)
+-- Test if message from one player to another would get muted based on recipient ignore list
+local is_muted = function(from, to)
+	assert(type(to) == "string", "is_muted(from, to): 'to' should be a string, got "..type(to)..".")
+	local player = minetest.get_player_by_name(to)
 	if player then
 		local meta = player:get_meta()
-		return meta:get("beerchat:muted:" .. name) == "true"
+		return meta:get("beerchat:muted:" .. (from or "")) == "true"
 	end
-	return true
 end
 
 -- Events
@@ -17,14 +17,15 @@ beerchat.register_callback("before_send_pm", function(name, _, target)
 	end
 end)
 
+-- Ambiguous arguments for before_check_muted event, TBD if event should be deprecated or reworked.
 beerchat.register_callback("before_check_muted", function(name, target)
 	if is_muted(name, target) then
 		return false
 	end
 end)
 
 beerchat.register_callback("on_send_on_channel", function(name, _, target)
-	if is_muted(name, target) then
+	if is_muted(name, target) ~= false then
 		return false
 	end
 end)
@@ -36,21 +37,18 @@ local mute_player = {
 	description = "Mute a player. After muting a player, you will no longer see chat "
 		.. "messages of this user, regardless of what channel his user sends messages to.",
 	func = function(name, param)
-
 		if not beerchat.execute_callbacks("before_mute", name, param) then
 			return false
 		end
 
 		if not param or param == "" then
-			return false, "ERROR: Invalid number of arguments. Please supply the name "
-				.. "of the user to mute."
+			return false, "ERROR: Invalid number of arguments. Please supply the name of the user to mute."
 		end
 
 		if beerchat.has_player_muted_player(name, param) then
 			minetest.chat_send_player(name, "Player " .. param .. " is already muted.")
 		else
-			minetest.get_player_by_name(name):get_meta():set_string(
-				"beerchat:muted:" .. param, "true")
+			minetest.get_player_by_name(name):get_meta():set_string("beerchat:muted:" .. param, "true")
 			minetest.chat_send_player(name, "Muted player " .. param .. ".")
 		end
 		return true
@@ -59,17 +57,14 @@ local mute_player = {
 
 local unmute_player = {
 	params = "<Player Name>",
-	description = "Unmute a player. After unmuting a player, you will again see chat "
-		.. "messages of this user",
+	description = "Unmute a player. After unmuting a player, you will again see chat messages of this user",
 	func = function(name, param)
 		if not param or param == "" then
-			return false, "ERROR: Invalid number of arguments. Please supply the "
-				.. "name of the user to mute."
+			return false, "ERROR: Invalid number of arguments. Please supply the name of the user to mute."
 		end
 
 		if beerchat.has_player_muted_player(name, param) then
-			minetest.get_player_by_name(name):get_meta():set_string(
-				"beerchat:muted:" .. param, "")
+			minetest.get_player_by_name(name):get_meta():set_string("beerchat:muted:" .. param, "")
 			minetest.chat_send_player(name, "Unmuted player " .. param .. ".")
 		else
 			minetest.chat_send_player(name, "Player " .. param .. " was not muted.")
@@ -82,27 +77,26 @@ local list_muted = {
 	params = "",
 	description = "Show list of muted players.",
 	func = function(name)
-
 		local player = minetest.get_player_by_name(name)
-		local tMeta = player:get_meta():to_table()
-
-		if nil == tMeta or nil == tMeta.fields then return false end
+		local meta = player and player:get_meta():to_table()
+
+		if meta and meta.fields then
+			local muted = {}
+			for field, _ in pairs(meta.fields) do
+				if field:sub(1, 15) == "beerchat:muted:" then
+					table.insert(muted, field:sub(16, -1))
+				end
+			end
 
-		local sOut = ""
-		for sKey, _ in pairs(tMeta.fields) do
-			if "beerchat:muted:" == sKey:sub(1, 15) then
-				sOut = sOut .. sKey:sub(16, -1) .. ", "
+			if #muted > 0 then
+				minetest.chat_send_player(name, table.concat(muted, ", "))
+			else
+				minetest.chat_send_player(name, "You have not muted any players.")
 			end
-		end
 
-		if 0 == #sOut then
-			sOut = "You have not muted any players."
-		else
-			-- remove trailing comma and space
-			sOut = sOut:sub(1, -3)
+			return true
 		end
-		minetest.chat_send_player(name, sOut)
-		return true
+		return false
 	end
 }