goonstation-2020/code/datums/browserOutput.dm

/*********************************
For the main html chat area
*********************************/


#define CTX_PM 1
#define CTX_SMSG 2
#define CTX_BOOT 4
#define CTX_BAN 8
#define CTX_GIB 16
#define CTX_POPT 32
#define CTX_JUMP 64
#define CTX_GET 128

#define CTX_OBSERVE 256
#define CTX_GHOSTJUMP 512

//Precaching a bunch of shit
var/global
	savefile/iconCache = new /savefile("data/iconCache.sav") //Cache of icons for the browser output
	cFlagsShitguy = CTX_GIB | CTX_GET
	cFlagsSa = CTX_BAN | CTX_POPT | CTX_JUMP
	cFlagsMod = CTX_SMSG | CTX_BOOT | CTX_PM

	cFlagsDead = CTX_OBSERVE | CTX_GHOSTJUMP
	// Why is this defined this way you ask?
	// It's because if you define an associative list mapping constants inside strings
	// like "[LEVEL_MOD]" = FOOBAR_SHITFUCK_FUCKFACE
	// The byond object tree output gets completely fucked in the ass and generates
	// broken xml
	list/contextFlags = list(1 = 0,2 = cFlagsMod,3 = cFlagsSa,4 = 0,5 = 0,6 = cFlagsShitguy,7 = 0,8 = 0)

	/*
	8 = LEVEL_HOST
	7 = LEVEL_CODER
	6 = LEVEL_SHITGUY
	5 = LEVEL_PA
	4 = LEVEL_ADMIN
	3 = LEVEL_SA
	2 = LEVEL_MOD
	1 = LEVEL_BABBY
	*/

//On client, created on login
/datum/chatOutput
	var
		client/owner = null //client ref
		loaded = 0 //Has the client loaded the browser output area?
		loadAttempts = 0 //How many times has the client tried to load the output area?
		list/messageQueue = list() //If they haven't loaded chat, this is where messages will go until they do
		ctxFlag = 0 //Context menu flags for the admin powers
		cookieSent = 0 //Has the client sent a cookie for analysis
		list/connectionHistory = list() //Contains the connection history passed from chat cookie

	New(client/C)
		..()

		if (C)
			src.owner = C
			return 1

	proc
		start()
			//Check for existing chat
			if (!src.owner) return 0
			if (winget(src.owner, "browseroutput", "is-disabled") == "false") //Already setup
				src.doneLoading()
			else //Not setup
				src.load()

			return 1

		load()
			if (src.owner)
				//For local-testing fallback
				if (!cdn)
					var/list/chatResources = list(
						"browserassets/js/jquery.min.js",
						"browserassets/js/errorHandler.js",
						//"browserassets/js/array.generics.min.js",
						//"browserassets/js/anchorme.js",
						"browserassets/js/browserOutput.js",
						"browserassets/css/fonts/fontawesome-webfont.eot",
						"browserassets/css/fonts/fontawesome-webfont.svg",
						"browserassets/css/fonts/fontawesome-webfont.ttf",
						"browserassets/css/fonts/fontawesome-webfont.woff",
						"browserassets/css/font-awesome.css",
						"browserassets/css/browserOutput.css"
					)
					src.owner.loadResourcesFromList(chatResources)

				src.owner << browse(grabResource("html/browserOutput.html"), "window=browseroutput")

				if (src.loadAttempts < 5) //To a max of 5 load attempts
					SPAWN_DBG(20 SECONDS) //20 seconds
						if (src.owner && !src.loaded)
							src.loadAttempts++
							src.load()
				else
					//Exceeded. Maybe do something extra here
					return
			else
				//Client managed to logoff or otherwise get deleted
				return

		//Called on chat output done-loading by JS.
		doneLoading(ua)
			if (src.owner && !src.loaded)
				src.loaded = 1
				winset(src.owner, "browseroutput", "is-disabled=false")
				//if (src.owner.holder)
				src.loadAdmin()
				if (src.messageQueue)
					for (var/x = 0, x < src.messageQueue.len, x++)
						boutput(src.owner, src.messageQueue["[x]"]["message"], src.messageQueue["[x]"]["group"])
				src.messageQueue = null
				if (ua)
					//For persistent user tracking
					apiHandler.queryAPI("versions/add", list(
						"ckey" = src.owner.ckey,
						"userAgent" = ua,
						"byondMajor" = src.owner.byond_version,
						"byondMinor" = src.owner.byond_build
					))

				else
					src.sendClientData()
					/* WIRE TODO: Fix this so the CDN dying doesn't break everyone
					SPAWN_DBG(1 MINUTE) //60 seconds
						if (!src.cookieSent) //Client has very likely futzed with their local html/js chat file
							out(src.owner, "<div class='fatalError'>Chat file tampering detected. Closing connection.</div>")
							del(src.owner)
					*/

		//Called in update_admins()
		loadAdmin()
			var/data = json_encode(list("loadAdminCode" = replacetext(replacetext(grabResource("html/adminOutput.html"), "\n", ""), "\t", "")))
			ehjax.send(src.owner, "browseroutput", url_encode(data))

		//Sends client connection details to the chat to handle and save
		sendClientData()
			//Fix for Cannot read null.ckey (how!?)
			if (!src.owner) return

			//Get dem deets
			var/list/deets = list("clientData" = list())
			deets["clientData"]["ckey"] = src.owner.ckey
			deets["clientData"]["ip"] = src.owner.address
			deets["clientData"]["compid"] = src.owner.computer_id
			var/data = json_encode(deets)
			ehjax.send(src.owner, "browseroutput", data)

		//Called by client, sent data to investigate (cookie history so far)
		analyzeClientData(cookie = "")
			if (!cookie) return
			if (cookie != "none")
				var/list/connData = json_decode(cookie)
				if (connData && islist(connData) && connData.len > 0 && connData["connData"])
					src.connectionHistory = connData["connData"] //lol fuck
					var/list/found = new()
					for (var/i = src.connectionHistory.len; i >= 1; i--)
						var/list/row = src.connectionHistory[i]
						if (!row || row.len < 3 || (!row["ckey"] && !row["compid"] && !row["ip"])) //Passed malformed history object
							return
						if (checkBan(row["ckey"], row["compid"], row["ip"]))
							found = row
							break

					//Uh oh this fucker has a history of playing on a banned account!!
					if (found.len > 0)
						//TODO: add a new evasion ban for the CURRENT client details, using the matched row details
						message_admins("[key_name(src.owner)] has a cookie from a banned account! (Matched: [found["ckey"]], [found["ip"]], [found["compid"]])")
						logTheThing("debug", src.owner, null, "has a cookie from a banned account! (Matched: [found["ckey"]], [found["ip"]], [found["compid"]])")
						logTheThing("diary", src.owner, null, "has a cookie from a banned account! (Matched: [found["ckey"]], [found["ip"]], [found["compid"]])", "debug")

						//Irc message too
						if(owner)
							var/ircmsg[] = new()
							ircmsg["key"] = owner.key
							ircmsg["name"] = owner.mob.name
							ircmsg["msg"] = "has a cookie from banned account [found["ckey"]](IP: [found["ip"]], CompID: [found["compID"]])"
							ircbot.export("admin", ircmsg)
			src.cookieSent = 1

		getContextFlags()
			var/ret = src.ctxFlag
			if(src.owner && istype( src.owner.mob, /mob/dead/observer ))
				ret |= cFlagsDead
			return ret

		//Called in New() (/datum/admins)
		getContextFlag()
			if (!src.owner.holder) return
			var/level = src.owner.holder.level

			for (var/x = level; x >= -1 ; x--) //-1 is the lowest rank
				var/rankFlags = contextFlags[x+2] // X + 2 because fuck byond. See definition of contextflags at the top of this file.
				if (rankFlags)
					src.ctxFlag |= rankFlags

		//Called by js client on admin command via context menu
		handleContextMenu(command, target)
			if (!src.owner.holder && command != "observe" && command != "teleport") return // oopsy i'm so messy heehee
			var/datum/mind/targetMind = locate(target)
			var/mob/targetMob
			if (targetMind)
				targetMob = targetMind.current
			else //The mind no longer exists? What? How?!
				return

			switch(command)
				if ("pm")
					src.owner.cmd_admin_pm(targetMob)
				if ("smsg")
					src.owner.cmd_admin_subtle_message(targetMob)
				if ("jump")
					if (!istype(targetMob, /mob/dead/target_observer))
						src.owner.jumptomob(targetMob)
					else
						var/jumptarget = targetMob.eye
						if (jumptarget)
							src.owner.jumptoturf(get_turf(jumptarget))
				if ("get")
					src.owner.Getmob(targetMob)
				if ("boot")
					src.owner.cmd_boot(targetMob)
				if ("ban")
					src.owner.addBanDialog(targetMob)
				if ("gib")
					src.owner.cmd_admin_gib(targetMob)
					logTheThing("admin", src.owner, targetMob, "gibbed %target%.")
				if ("popt")
					if(src.owner.holder)
						src.owner.holder.playeropt(targetMob)
				if ("observe")
					if (istype(src.owner.mob, /mob/dead/target_observer))
						src.owner.mob:set_observe_target(targetMob)
					if(istype(src.owner.mob, /mob/dead/observer))
						src.owner.mob:insert_observer(targetMob)
				if ("teleport")
					if (istype(src.owner.mob, /mob/dead/target_observer))
						src.owner.mob:stop_observing()
					if(istype(src.owner.mob, /mob/dead/observer))
						src.owner.mob.set_loc(get_turf(targetMob))

		//todo
		changeChatMode(mode)
			if (!mode) return
			var/data = json_encode(list("modeChange" = mode))
			data = url_encode(data)

			for (var/client/C in clients)
				ehjax.send(C, "browseroutput", data)

		playMusic(url, volume)
			if (!url || !volume) return
			var/data = json_encode(list("playMusic" = url, "volume" = volume / 100))
			data = url_encode(data)

			ehjax.send(src.owner, "browseroutput", data)

		playDectalk(url, trigger, volume)
			if (!url || !volume) return
			var/data = json_encode(list("dectalk" = url, "decTalkTrigger" = trigger, "volume" = volume / 100))
			data = url_encode(data)

			ehjax.send(src.owner, "browseroutput", data)

		adjustVolumeRaw(volume)
			var/data = json_encode(list("adjustVolume" = volume))
			data = url_encode(data)

			ehjax.send(src.owner, "browseroutput", data)
		adjustVolume(volume)
			var/data = json_encode(list("adjustVolume" = volume / 100))
			data = url_encode(data)

			ehjax.send(src.owner, "browseroutput", data)

		//Called by js client every 60 seconds
		ping()
			return "pong"


//Global chat procs

//Converts an icon to base64. Operates by putting the icon in the iconCache savefile,
// exporting it as text, and then parsing the base64 from that.
// (This relies on byond automatically storing icons in savefiles as base64)
/proc/icon2base64(icon, iconKey = "misc")
	if (!isicon(icon)) return 0

	iconCache[iconKey] << icon
	var/iconData = iconCache.ExportText(iconKey)
	var/list/partial = splittext(iconData, "{")
	return copytext(partial[2], 3, -5)


/proc/bicon(obj)
	if (ispath(obj))
		obj = new obj()

	var/baseData

	if (isicon(obj))
		baseData = icon2base64(obj)
		return "<img style=\"position: relative; left: -1px; bottom: -3px;\" class=\"icon misc\" src=\"data:image/png;base64,[baseData]\" />"

	if (obj && obj:icon)
		//Hash the darn dmi path and state
		var/iconKey = md5("[obj:icon][obj:icon_state]")
		var/iconData

		//See if key already exists in savefile
		iconData = iconCache.ExportText(iconKey)
		if (iconData)
			//It does! Ok, parse out the base64
			var/list/partial = splittext(iconData, "{")

			if (length(partial) < 2)
				logTheThing("debug", null, null, "Got invalid savefile data for: [obj]")
				return

			baseData = copytext(partial[2], 3, -5)
		else
			//It doesn't exist! Create the icon
			var/icon/icon = icon(file(obj:icon), obj:icon_state, SOUTH, 1)

			if (!icon)
				logTheThing("debug", null, null, "Unable to create output icon for: [obj]")
				return

			baseData = icon2base64(icon, iconKey)

		return "<img style=\"position: relative; left: -1px; bottom: -3px;\" class=\"icon [obj:icon_state]\" src=\"data:image/png;base64,[baseData]\" />"

//Aliases for bicon
/proc/bi(obj)
	bicon(obj)

/proc/boutput(target = 0, message = "", group = "")
	if (target == world)
		for (var/client/C in clients)
			boutput(C, message)
		return

	//If the target is a list, attempt to send the message to each item in the list
	//(it's up to the caller to ensure the list contains actual things we can send to)
	if (islist(target))
		for (var/T in target)
			boutput(T, message)
		return

	//Ok so I did my best but I accept that some calls to this will be for shit like sound and images
	//It stands that we PROBABLY don't want to output those to the browser output so just handle them here
	if (istype(message, /image) || istype(message, /sound) || istype(target, /savefile))
		target << message
		CRASH("DEBUG: Boutput called with invalid message")
		return

	//Otherwise, we're good to throw it at the user
	else if (istext(message))
		if (istext(target)) return

		//Some macros remain in the string even after parsing and fuck up the eventual output
		message = stripTextMacros(message)

		//Grab us a client if possible
		var/client/C
		if (isclient(target))
			C = target
		else if (ismob(target))
			C = target:client
		else if (ismind(target) && target:current)
			C = target:current:client

		if (C && C.chatOutput && !C.chatOutput.loaded && C.chatOutput.messageQueue && islist(C.chatOutput.messageQueue))
			//Client sucks at loading things, put their messages in a queue
			C.chatOutput.messageQueue["[C.chatOutput.messageQueue.len]"] = list("message" = message, "group" = group)
		else
			target << output(list2params(list(
				message,
				group
			)), "browseroutput:output")

//Aliases for boutput
/proc/bout(target = 0, message = "", group = "")
	boutput(target, message, group)
/proc/out(target = 0, message = "", group = "")
	boutput(target, message, group)
/proc/bo(target = 0, message = "", group = "")
	boutput(target, message, group)


/*
I spent so long on this regex I don't want to get rid of it :(

if (findtext(message, "<IMG CLASS=ICON"))
	var/regex/R = new("/<IMG CLASS=icon SRC=(\\\[.*?\\\]) ICONSTATE='(.*?)'>/\[insertIconImg($1,$2)\]/e")
	//if (R.Find(message))
	var/newtxt = R.Replace(message)
	while(newtxt)
		message = newtxt
		newtxt = R.ReplaceNext(message)

	world.log << html_encode(message)
*/

/*
/client/verb/reloadChat()
	set name = "Reload Chat"

	del(src.chatOutput)
	winset(src, "browseroutput", "is-disabled=true")
	src.chatOutput = new /datum/chatOutput(src)
	src.chatOutput.start()

	out(src, "Reloaded chat")
*/