More fixes

trim the url string when doing a request
Check the protocol to make sure it's valid or supported
Add in another patch to http to actually preform http requests when
asked, the hack however prevents you from doing HTTP on 443, but it's
much better
Add in the SDL2 scancode to cprint debugging
Ignore Escape key
Artificially generate various characters for various keys
Also default to 0 in key_up

Add in a secondary list for the artificial characters:
Backspaces
Tabs
Enter
Delete

src/component/internet.lua

@@ -7,8 +7,8 @@ if not okay then
 end
 require("support.http_patch")
 local url = require("socket.url")
-local okay, http = pcall(require, "ssl.https")
-if not okay then
+local httpsok, http = pcall(require, "ssl.https")
+if not httpsok then
 	cprint("Cannot use HTTPS: " .. http)
 	http = require("socket.http")
 end
@@ -17,6 +17,11 @@ component.connect("filesystem",gen_uuid(),nil,"lua/component/internet",true)
 
 local obj = {}
 
+local function string_trim(s)
+	local from = s:match"^%s*()"
+	return from > #s and "" or s:match(".*%S", from)
+end
+
 local function checkUri(address, port)
 	local parsed = url.parse(address)
 	if parsed ~= nil and parsed.host ~= nil and (parsed.port ~= nil or port > -1) then
@@ -117,6 +122,19 @@ function obj.request(url, postData) -- Starts an HTTP request. If this returns t
 		return nil, "http requests are unavailable"
 	end
 	-- TODO: Check for too many connections
+	url = string_trim(url)
+	-- TODO: Use url.parse
+	local protocol = url:match("(.-):")
+	if protocol == "http" then
+	elseif protocol == "https" then
+		if not httpsok then
+			return nil, "unsupported protocol"
+		end
+	elseif protocol == "ftp" or protocol == "mailto" then
+		return nil, "unsupported protocol"
+	else
+		return nil, "invalid address"
+	end
 	if type(postData) ~= "string" then
 		postData = nil
 	end

src/component/keyboard_sdl2.lua

@@ -5,7 +5,7 @@ local lua_utf8 = require("utf8")
 local SDL = elsa.SDL
 
 -- Conversion table for SDL2 keys to LWJGL key codes
-local keys = require("support.sdl_to_lwjgl")
+local keys,codes = elsa.filesystem.load("support/sdl_to_lwjgl.lua")()
 
 local code2char = {}
 
@@ -24,15 +24,16 @@ end
 function elsa.keydown(event)
 	local keyevent = ffi.cast("SDL_KeyboardEvent", event)
 	local key = keyevent.keysym.scancode
-	cprint("keydown",keys[key])
-	table.insert(kbdcodes,{type="key_down",addr=address,code=keys[key] or 0})
+	local lwjgl = keys[key]
+	cprint("keydown",keyevent.keysym.scancode,lwjgl)
 	-- TODO: Lovely SDL Hacks
-	if keys[key] == 15 then
-		setLatest(9)
-	elseif keys[key] == 28 or keys[key] == 156 then
-		setLatest(13)
+	if lwjgl ~= 1 then -- Escape
+		table.insert(kbdcodes,{type="key_down",addr=address,code=lwjgl or 0})
 	end
-	if keys[key] == 210 then
+	if lwjgl ~= nil and codes[lwjgl] ~= nil then
+		setLatest(codes[lwjgl])
+	end
+	if lwjgl == 210 then
 		if SDL.hasClipboardText() > 0 then
 			table.insert(machine.signals,{"clipboard",address,ffi.string(SDL.getClipboardText())})
 		end
@@ -42,8 +43,11 @@ end
 function elsa.keyup(event)
 	local keyevent = ffi.cast("SDL_KeyboardEvent", event)
 	local key = keyevent.keysym.scancode
-	cprint("keydown",keys[key])
-	table.insert(kbdcodes,{type="key_up",addr=address,code=keys[key],char=code2char[keys[key]]})
+	local lwjgl = keys[key]
+	cprint("keydown",keyevent.keysym.scancode,lwjgl)
+	if key ~= 41 then -- Escape
+		table.insert(kbdcodes,{type="key_up",addr=address,code=lwjgl or 0,char=code2char[lwjgl]})
+	end
 end
 
 -- keyboard component

src/support/http_patch.lua

@@ -7,6 +7,7 @@ cprint("http_patch start")
 -- Patch data
 local patches = {
 	{[[if headers[name] then headers[name] = headers[name] .. ", " .. value]],[[if headers[name] then if type(headers[name]) == "string" then headers[name] = {headers[name]} end headers[name][#headers[name]+1] = value]]},
+	{[[local nreqt = adjustrequest(reqt)]],[[local nreqt = adjustrequest(reqt) if nreqt.scheme == "http" then nreqt.create = nil if nreqt.port == "443" then nreqt.port = "80" end end]]},
 }
 package.loaded["socket.http"] = nil
 local path = package.searchpath("socket.http",package.path)

src/support/sdl_to_lwjgl.lua

@@ -36,6 +36,7 @@ return {
 [38]=10,
 [39]=11,
 [40]=28,
+[41]=1,
 [42]=14,
 [43]=15,
 [44]=57,
@@ -96,4 +97,10 @@ return {
 [228]=157,
 [229]=54,
 [230]=184,
+},{
+[14]=8,
+[15]=9,
+[28]=13,
+[156]=13,
+[211]=127,
 }