1 files changed, 57 insertions, 0 deletions
diff --git a/util/datetime.lua b/util/datetime.lua
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index 00000000..a1f62a48
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+++ b/util/datetime.lua
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+-- Prosody IM
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 Waqas Hussain
+-- 
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+
+-- XEP-0082: XMPP Date and Time Profiles
+
+local os_date = os.date;
+local os_time = os.time;
+local os_difftime = os.difftime;
+local error = error;
+local tonumber = tonumber;
+
+module "datetime"
+
+function date(t)
+	return os_date("!%Y-%m-%d", t);
+end
+
+function datetime(t)
+	return os_date("!%Y-%m-%dT%H:%M:%SZ", t);
+end
+
+function time(t)
+	return os_date("!%H:%M:%S", t);
+end
+
+function legacy(t)
+	return os_date("!%Y%m%dT%H:%M:%S", t);
+end
+
+function parse(s)
+	if s then
+		local year, month, day, hour, min, sec, tzd;
+		year, month, day, hour, min, sec, tzd = s:match("^(%d%d%d%d)%-?(%d%d)%-?(%d%d)T(%d%d):(%d%d):(%d%d)%.?%d*([Z+%-]?.*)$");
+		if year then
+			local time_offset = os_difftime(os_time(os_date("*t")), os_time(os_date("!*t"))); -- to deal with local timezone
+			local tzd_offset = 0;
+			if tzd ~= "" and tzd ~= "Z" then
+				local sign, h, m = tzd:match("([+%-])(%d%d):?(%d*)");
+				if not sign then return; end
+				if #m ~= 2 then m = "0"; end
+				h, m = tonumber(h), tonumber(m);
+				tzd_offset = h * 60 * 60 + m * 60;
+				if sign == "-" then tzd_offset = -tzd_offset; end
+			end
+			sec = (sec + time_offset) - tzd_offset;
+			return os_time({year=year, month=month, day=day, hour=hour, min=min, sec=sec, isdst=false});
+		end
+	end
+end
+
+return _M;