Initial commit

lua/autorun/discordrpc_init.lua

@@ -0,0 +1,26 @@
+
+Msg("DiscordRPC loading: start\n")
+
+local function load(path)
+	local action = CLIENT and include or AddCSLuaFile -- this is completely clientside, soo...
+	action(path)
+	print("\tLoaded: " .. path)
+end
+
+load("discordrpc/init.lua")
+if SERVER then -- if server then just add the files to download
+	for _, fn in next, (file.Find("discordrpc/states/*.lua", "LUA")) do
+		load("discordrpc/states/" .. fn)
+	end
+else -- otherwise create the function to load states later in main.lua
+	function discordrpc.LoadStates()
+		for _, fn in next, (file.Find("discordrpc/states/*.lua", "LUA")) do
+			load("discordrpc/states/" .. fn)
+		end
+	end
+end
+load("discordrpc/main.lua")
+
+
+Msg("DiscordRPC loading: done!\n")
+

lua/discordrpc/init.lua

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+
+-- Credits to SpiralP and Tenrys
+-- Currently Discord Canary only
+-- Fail message: Not authenticated or invalid scope
+
+discordrpc = discordrpc or {}
+discordrpc.port = discordrpc.port
+
+discordrpc.states = discordrpc.states or {}
+discordrpc.state = discordrpc.state
+
+-- discordrpc.clientID (string) should be set in main.lua
+-- discordrpc.state (string) should be set later in main.lua as the starting state
+
+function discordrpc.Print(...)
+	local header = "[Discord RPC%s] "
+	local args = {...}
+	if type(args[1]) ~= "string" then
+		header = header:format(" DEBUG")
+	end
+
+	MsgC(Color(114, 137, 218), header)
+	print(...)
+end
+function discordrpc.Init(callback)
+	if not discordrpc.port then
+		local validPort
+		for port = 6463, 6473 do
+			local success = function(body)
+				if body:match("Authorization Required") and not validPort then
+					discordrpc.Print(("Connection success on port %s! "):format(port))
+					validPort = port
+					discordrpc.port = validPort
+
+					discordrpc.SetActivity({ details = "...", state = "..." }, function(body, err)
+						if not body and err:match("Not authenticated or invalid scope") then
+							discordrpc.Print("Warning: first SetActivity test didn't work, make sure you're using Discord Canary!")
+						else
+							discordrpc.Print("First SetActivity test was successful, should be ready to work!")
+						end
+
+						if callback then
+							callback(body, err)
+						end
+					end)
+				end
+			end
+			local failed = function(...)
+				-- do nothing
+			end
+			http.Fetch(("http://127.0.0.1:%s"):format(port), success, failed)
+		end
+	end
+end
+function discordrpc.SetActivity(activity, callback)
+	if not discordrpc.port then
+		ErrorNoHalt("DiscordRPC: port unset, did you Init?")
+		return
+	end
+
+	HTTP{
+		method = "POST",
+		url = ("http://127.0.0.1:%s/rpc?v=1&client_id=%s"):format(discordrpc.port, discordrpc.clientID),
+
+		type = "application/json",
+		body = util.TableToJSON{
+			cmd = "SET_ACTIVITY",
+			args = {
+				pid = 12345, -- This doesn't really matter though it would be nice if we could get GMod's process ID in Lua
+				activity = activity
+			},
+			nonce = tostring(SysTime())
+		},
+
+		success = function(status, body)
+			local data = util.JSONToTable(body)
+			if not data or data.evt == "ERROR" then
+				callback(false, "Discord error: " .. tostring(data.data and data.data.message or "nil"))
+			else
+				callback(data)
+			end
+		end,
+		failed = function(err)
+			callback(false, "HTTP error: " .. err)
+		end,
+	}
+end
+local defaultActivity = {
+	details = "???",
+	state = "Default state"
+}
+function discordrpc.GetActivity()
+	local activity = {}
+
+	if discordrpc.state then
+		local state = discordrpc.states[discordrpc.state]
+		if state then
+			activity = state.GetActivity and state:GetActivity() or {
+				details = state:GetDetails(),
+				state = state:GetState(),
+				timestamps = state:GetTimestamps(),
+				assets = state:GetAssets()
+				-- Other fields available that we can't use (atleast I don't think so): party, secrets, instance, application_id, flags
+			}
+		else
+			discordrpc.Print(("Error: State %s not found? Getting default activity!"):format(discordrpc.state))
+			activity = defaultActivity
+		end
+	else
+		discordrpc.Print("Warning: No state selected, getting default activity!")
+		activity = defaultActivity
+	end
+
+	return activity
+end
+

lua/discordrpc/main.lua

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+
+if not discordrpc then ErrorNoHalt("DiscordRPC: missing???") return end
+
+discordrpc.clientID = "XXXXXXXXXXXXXXXXXX" -- This is your Discord application's client ID: https://discordapp.com/developers/applications/me
+discordrpc.state = "example" -- This is the default state when you first load in.
+
+http.Loaded = http.Loaded and http.Loaded or false
+local function checkHTTP()
+	http.Fetch("http://google.com", function()
+		http.Loaded = true
+	end, function()
+		http.Loaded = true
+	end)
+end
+if not http.Loaded then
+	timer.Create("HTTPLoadedCheck", 3, 0, function()
+		if not http.Loaded then
+			checkHTTP()
+		else
+			hook.Run("HTTPLoaded")
+			timer.Remove("HTTPLoadedCheck")
+		end
+	end)
+end
+
+hook.Add("HTTPLoaded", "discordrpc_metastruct", function()
+	discordrpc.Init(function(succ, err)
+		if succ then
+			discordrpc.LoadStates()
+
+			discordrpc.SetActivity(discordrpc.GetActivity(), discordrpc.Print)
+		else
+			discordrpc.Print(succ, err)
+		end
+	end)
+end)
+

lua/discordrpc/states/example.lua

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+
+if not discordrpc then ErrorNoHalt("DiscordRPC: missing???") return end
+
+local example = {}
+function example:GetDetails()
+	return "Some details"
+end
+function example:GetState()
+	return "In Game"
+end
+local start = os.time() -- os.time since spawned in the server, do not edit
+function example:GetTimestamps()
+	return {
+		start = start,
+		["end"] = nil -- nothing?
+	}
+end
+function example:GetAssets()
+	local assets = {}
+
+	-- Do whatever with the assets you add.
+
+	return assets
+end
+function example:GetActivity()
+	return {
+		details = self:GetDetails(),
+		state = self:GetState(),
+		timestamps = self:GetTimestamps(),
+		assets = self:GetAssets()
+	}
+discordrpc.states.example = example
+
+-- Follow these guidelines: https://discordapp.com/developers/docs/topics/gateway#activity-object
+-- You cannot use these fields: party, secrets, instance, application_id, flags (I'm not sure actually but you should only try if you know what you're doing)
+