Add mods from server (#16)

.gitmodules

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+[submodule "sban"]
+	path = sban
+	url = https://github.com/shivajiva101/sban
+[submodule "sauth"]
+	path = sauth
+	url = https://github.com/shivajiva101/sauth/
+[submodule "irc"]
+	path = irc
+	url = https://github.com/minetest-mods/irc
+[submodule "irc_commands"]
+	path = irc_commands
+	url = https://github.com/MT-CTF/irc_commands
+[submodule "filter"]
+	path = filter
+	url = https://github.com/minetest-mods/filter
+[submodule "hud_notify"]
+	path = hud_notify
+	url = https://github.com/ClobberXD/hud_notify
+[submodule "antispam"]
+	path = antispam
+	url = https://github.com/appgurueu/antispam

antispam

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+Subproject commit f4958b3f9d67494c3470a311d4d526b433149e12

filter

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+Subproject commit b3d58cd83d4e52eeedf1bb730fdfb569a89b1257

hud_notify

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+Subproject commit 04161966be25aece7930eee5fe41b143ba830461

irc

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+Subproject commit 7fbbfd6cdbb239a059e42fdaf101b760346d06b9

irc_commands

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+Subproject commit 83ad5f580a20138843c1e75acb71195baf0326c6

no_guests/depends.txt

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+sban?

no_guests/init.lua

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+-- No guests mod.
+-- By VanessaE, sfan5, and kaeza.
+
+local disallowed = {
+	["guest"]				=	"Guest accounts are disallowed on this server.  "..
+								"Please choose a proper username and try again.",
+	["[4a]dm[1il]n"]		=	"That is a clearly false, misleading, or otherwise disallowed username. "..
+								"Please choose a unique username and try again.",
+	["^[0-9]+$"]			=	"All-numeric usernames are disallowed on this server. "..
+								"Please choose a proper username and try again.",
+	["[0-9].-[0-9].-[0-9].-[0-9].-[0-9]"]	=	"Too many numbers in your username. "..
+												"Please try again with less than five digits in your username.",
+	["^[A-Za-z]+[0-9][0-9][0-9]+$"] = "Please choice your own username. Usernames with letters then 3 or more digits are not allowed"
+}
+
+-- Original implementation (in Python) by sfan5
+local function judge(msg)
+	local numspeakable = 0
+	local numnotspeakable = 0
+	local cn = 0
+	local lastc = '____'
+	for c in msg:gmatch(".") do
+		c = c:lower()
+		if c:find("[aeiou0-9_-]") then
+			if cn > 2 and not c:find("[0-9]") then
+				numnotspeakable = numnotspeakable + 1
+			elseif not c:find("[0-9]") then
+				numspeakable = numspeakable + 1
+			end
+			cn = 0
+		else
+			if (cn == 1) and (lastc == c) and (lastc ~= 's') then
+				numnotspeakable = numnotspeakable + 1
+				cn = 0
+			end
+			if cn > 2 then
+				numnotspeakable = numnotspeakable + 1
+				cn = 0
+			end
+			if lastc:find("[aeiou]") then
+				numspeakable = numspeakable + 1
+				cn = 0
+			end
+			if not ((lastc:find("[aipfom]") and c == "r") or (lastc == "c" and c == "h")) then
+				cn = cn + 1
+			end
+		end
+		lastc = c
+	end
+	if cn > 0 then
+		numnotspeakable = numnotspeakable + 1
+	end
+	return (numspeakable >= numnotspeakable)
+end
+
+minetest.register_on_prejoinplayer(function(name, ip)
+	if not minetest.player_exists(name) then
+		local lname = name:lower()
+		for re, reason in pairs(disallowed) do
+			if lname:find(re) then
+				return reason
+			end
+		end
+
+		if #name < 2 then
+			return "Too short of a username. "..
+					"Please pick a name with at least two letters and try again."
+		end
+
+		if not judge(name) and #name > 5 then
+			return "Your username just plain looks like gibberish. "..
+					"Please pick something readable and try again."
+		end
+	end
+end)

sauth

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+Subproject commit d2e0aa834c7c0b6d6000af98eb22088b905441c3

sban

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+Subproject commit 30c882337bf8edf4658198afd7139800341acd4e