Remove all trailing whitespace

31 files changed, 130 insertions, 130 deletions

diff --git a/util/array.lua b/util/array.lua
index 2d58e7fb..9bf215af 100644
--- a/util/array.lua
+++ b/util/array.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -59,13 +59,13 @@ function array_base.filter(outa, ina, func)
 			write = write + 1;
 		end
 	end
-	
+
 	if inplace and write <= start_length then
 		for i=write,start_length do
 			outa[i] = nil;
 		end
 	end
-	
+
 	return outa;
 end
 
diff --git a/util/caps.lua b/util/caps.lua
index a61e7403..4723b912 100644
--- a/util/caps.lua
+++ b/util/caps.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/dataforms.lua b/util/dataforms.lua
index 52924841..b38d0e27 100644
--- a/util/dataforms.lua
+++ b/util/dataforms.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -38,7 +38,7 @@ function form_t.form(layout, data, formtype)
 		form:tag("field", { type = field_type, var = field.name, label = field.label });
 
 		local value = (data and data[field.name]) or field.value;
-		
+
 		if value then
 			-- Add value, depending on type
 			if field_type == "hidden" then
@@ -93,11 +93,11 @@ function form_t.form(layout, data, formtype)
 				end
 			end
 		end
-		
+
 		if field.required then
 			form:tag("required"):up();
 		end
-		
+
 		-- Jump back up to list of fields
 		form:up();
 	end
diff --git a/util/datetime.lua b/util/datetime.lua
index a1f62a48..dd596527 100644
--- a/util/datetime.lua
+++ b/util/datetime.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/debug.lua b/util/debug.lua
index bff0e347..1f1ec9df 100644
--- a/util/debug.lua
+++ b/util/debug.lua
@@ -93,14 +93,14 @@ function get_traceback_table(thread, start_level)
 			info = debug.getinfo(level+1);
 		end
 		if not info then break; end
-		
+
 		levels[(level-start_level)+1] = {
 			level = level;
 			info = info;
 			locals = get_locals_table(level+1);
 			upvalues = get_upvalues_table(info.func);
 		};
-	end	
+	end
 	return levels;
 end
 
@@ -137,12 +137,12 @@ function _traceback(thread, message, level)
 	level = level or 1;
 
 	message = message and (message.."\n") or "";
-	
+
 	-- +3 counts for this function, and the pcall() and wrapper above us
 	local levels = get_traceback_table(thread, level+3);
-	
+
 	local last_source_desc;
-	
+
 	local lines = {};
 	for nlevel, level in ipairs(levels) do
 		local info = level.info;
diff --git a/util/dependencies.lua b/util/dependencies.lua
index 53d2719d..109a3332 100644
--- a/util/dependencies.lua
+++ b/util/dependencies.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -35,7 +35,7 @@ function missingdep(name, sources, msg)
 	print("");
 end
 
--- COMPAT w/pre-0.8 Debian: The Debian config file used to use 
+-- COMPAT w/pre-0.8 Debian: The Debian config file used to use
 -- util.ztact, which has been removed from Prosody in 0.8. This
 -- is to log an error for people who still use it, so they can
 -- update their configs.
@@ -50,9 +50,9 @@ end;
 
 function check_dependencies()
 	local fatal;
-	
+
 	local lxp = softreq "lxp"
-	
+
 	if not lxp then
 		missingdep("luaexpat", {
 				["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-expat0";
@@ -61,9 +61,9 @@ function check_dependencies()
 			});
 		fatal = true;
 	end
-	
+
 	local socket = softreq "socket"
-	
+
 	if not socket then
 		missingdep("luasocket", {
 				["Debian/Ubuntu"] = "sudo apt-get install liblua5.1-socket2";
@@ -72,7 +72,7 @@ function check_dependencies()
 			});
 		fatal = true;
 	end
-	
+
 	local lfs, err = softreq "lfs"
 	if not lfs then
 		missingdep("luafilesystem", {
@@ -82,9 +82,9 @@ function check_dependencies()
 		 	});
 		fatal = true;
 	end
-	
+
 	local ssl = softreq "ssl"
-	
+
 	if not ssl then
 		missingdep("LuaSec", {
 				["Debian/Ubuntu"] = "http://prosody.im/download/start#debian_and_ubuntu";
@@ -92,7 +92,7 @@ function check_dependencies()
 				["Source"] = "http://www.inf.puc-rio.br/~brunoos/luasec/";
 			}, "SSL/TLS support will not be available");
 	end
-	
+
 	local encodings, err = softreq "util.encodings"
 	if not encodings then
 		if err:match("not found") then
diff --git a/util/events.lua b/util/events.lua
index 4ace026f..40ca3913 100644
--- a/util/events.lua
+++ b/util/events.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/filters.lua b/util/filters.lua
index d143666b..8a470011 100644
--- a/util/filters.lua
+++ b/util/filters.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -16,7 +16,7 @@ function initialize(session)
 	if not session.filters then
 		local filters = {};
 		session.filters = filters;
-		
+
 		function session.filter(type, data)
 			local filter_list = filters[type];
 			if filter_list then
@@ -28,11 +28,11 @@ function initialize(session)
 			return data;
 		end
 	end
-	
+
 	for i=1,#new_filter_hooks do
 		new_filter_hooks[i](session);
 	end
-	
+
 	return session.filter;
 end
 
@@ -40,20 +40,20 @@ function add_filter(session, type, callback, priority)
 	if not session.filters then
 		initialize(session);
 	end
-	
+
 	local filter_list = session.filters[type];
 	if not filter_list then
 		filter_list = {};
 		session.filters[type] = filter_list;
 	end
-	
+
 	priority = priority or 0;
-	
+
 	local i = 0;
 	repeat
 		i = i + 1;
 	until not filter_list[i] or filter_list[filter_list[i]] >= priority;
-	
+
 	t_insert(filter_list, i, callback);
 	filter_list[callback] = priority;
 end
diff --git a/util/helpers.lua b/util/helpers.lua
index 08b86a7c..437a920c 100644
--- a/util/helpers.lua
+++ b/util/helpers.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/hmac.lua b/util/hmac.lua
index 51211c7a..2c4cc6ef 100644
--- a/util/hmac.lua
+++ b/util/hmac.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/import.lua b/util/import.lua
index 81401e8b..174da0ca 100644
--- a/util/import.lua
+++ b/util/import.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/ip.lua b/util/ip.lua
index 62649c9b..d0ae07eb 100644
--- a/util/ip.lua
+++ b/util/ip.lua
@@ -92,7 +92,7 @@ local function v6scope(ip)
 	if ip:match("^[0:]*1$") then
 		return 0x2;
 	-- Link-local unicast:
-	elseif ip:match("^[Ff][Ee][89ABab]") then 
+	elseif ip:match("^[Ff][Ee][89ABab]") then
 		return 0x2;
 	-- Site-local unicast:
 	elseif ip:match("^[Ff][Ee][CcDdEeFf]") then
diff --git a/util/iterators.lua b/util/iterators.lua
index 4b429163..aa9c3ec0 100644
--- a/util/iterators.lua
+++ b/util/iterators.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -25,7 +25,7 @@ function it.reverse(f, s, var)
 	        if var == nil then break; end
 		t_insert(results, 1, ret);
 	end
-	
+
 	-- Then return our reverse one
 	local i,max = 0, #results;
 	return function (results)
@@ -56,7 +56,7 @@ end
 -- Given an iterator, iterate only over unique items
 function it.unique(f, s, var)
 	local set = {};
-	
+
 	return function ()
 		while true do
 			local ret = pack(f(s, var));
@@ -73,13 +73,13 @@ end
 --[[ Return the number of items an iterator returns ]]--
 function it.count(f, s, var)
 	local x = 0;
-	
+
 	while true do
 		var = f(s, var);
 	        if var == nil then break; end
 		x = x + 1;
 	end
-	
+
 	return x;
 end
 
diff --git a/util/jid.lua b/util/jid.lua
index 4c4371d8..0d9a864f 100644
--- a/util/jid.lua
+++ b/util/jid.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/json.lua b/util/json.lua
index 82ebcc43..a8a58afc 100644
--- a/util/json.lua
+++ b/util/json.lua
@@ -348,9 +348,9 @@ local first_escape = {
 function json.decode(json)
 	json = json:gsub("\\.", first_escape) -- get rid of all escapes except \uXXXX, making string parsing much simpler
 		--:gsub("[\r\n]", "\t"); -- \r\n\t are equivalent, we care about none of them, and none of them can be in strings
-	
+
 	-- TODO do encoding verification
-	
+
 	local val, index = _readvalue(json, 1);
 	if val == nil then return val, index; end
 	if json:find("[^ \t\r\n]", index) then return nil, "garbage at eof"; end
diff --git a/util/logger.lua b/util/logger.lua
index 26206d4d..cd0769f9 100644
--- a/util/logger.lua
+++ b/util/logger.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/multitable.lua b/util/multitable.lua
index dbf34d28..caf25118 100644
--- a/util/multitable.lua
+++ b/util/multitable.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/pluginloader.lua b/util/pluginloader.lua
index c10fdf65..b894f527 100644
--- a/util/pluginloader.lua
+++ b/util/pluginloader.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/prosodyctl.lua b/util/prosodyctl.lua
index b80a69f2..fe862114 100644
--- a/util/prosodyctl.lua
+++ b/util/prosodyctl.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -146,7 +146,7 @@ function adduser(params)
 	if not(provider) or provider.name == "null" then
 		usermanager.initialize_host(host);
 	end
-	
+
 	local ok, errmsg = usermanager.create_user(user, password, host);
 	if not ok then
 		return false, errmsg;
@@ -162,7 +162,7 @@ function user_exists(params)
 	if not(provider) or provider.name == "null" then
 		usermanager.initialize_host(host);
 	end
-	
+
 	return usermanager.user_exists(user, host);
 end
 
@@ -170,7 +170,7 @@ function passwd(params)
 	if not _M.user_exists(params) then
 		return false, "no-such-user";
 	end
-	
+
 	return _M.adduser(params);
 end
 
@@ -179,7 +179,7 @@ function deluser(params)
 		return false, "no-such-user";
 	end
 	local user, host = nodeprep(params.user), nameprep(params.host);
-	
+
 	return usermanager.delete_user(user, host);
 end
 
@@ -188,30 +188,30 @@ function getpid()
 	if not pidfile then
 		return false, "no-pidfile";
 	end
-	
+
 	local modules_enabled = set.new(config.get("*", "modules_enabled"));
 	if not modules_enabled:contains("posix") then
 		return false, "no-posix";
 	end
-	
+
 	local file, err = io.open(pidfile, "r+");
 	if not file then
 		return false, "pidfile-read-failed", err;
 	end
-	
+
 	local locked, err = lfs.lock(file, "w");
 	if locked then
 		file:close();
 		return false, "pidfile-not-locked";
 	end
-	
+
 	local pid = tonumber(file:read("*a"));
 	file:close();
-	
+
 	if not pid then
 		return false, "invalid-pid";
 	end
-	
+
 	return true, pid;
 end
 
@@ -252,10 +252,10 @@ function stop()
 	if not ret then
 		return false, "not-running";
 	end
-	
+
 	local ok, pid = _M.getpid()
 	if not ok then return false, pid; end
-	
+
 	signal.kill(pid, signal.SIGTERM);
 	return true;
 end
@@ -268,10 +268,10 @@ function reload()
 	if not ret then
 		return false, "not-running";
 	end
-	
+
 	local ok, pid = _M.getpid()
 	if not ok then return false, pid; end
-	
+
 	signal.kill(pid, signal.SIGHUP);
 	return true;
 end
diff --git a/util/pubsub.lua b/util/pubsub.lua
index e1418c62..0dfd196b 100644
--- a/util/pubsub.lua
+++ b/util/pubsub.lua
@@ -29,13 +29,13 @@ end
 
 function service:may(node, actor, action)
 	if actor == true then return true; end
-	
+
 	local node_obj = self.nodes[node];
 	local node_aff = node_obj and node_obj.affiliations[actor];
 	local service_aff = self.affiliations[actor]
 	                 or self.config.get_affiliation(actor, node, action)
 	                 or "none";
-	
+
 	-- Check if node allows/forbids it
 	local node_capabilities = node_obj and node_obj.capabilities;
 	if node_capabilities then
@@ -47,7 +47,7 @@ function service:may(node, actor, action)
 			end
 		end
 	end
-	
+
 	-- Check service-wide capabilities instead
 	local service_capabilities = self.config.capabilities;
 	local caps = service_capabilities[node_aff or service_aff];
@@ -57,7 +57,7 @@ function service:may(node, actor, action)
 			return can;
 		end
 	end
-	
+
 	return false;
 end
 
@@ -211,7 +211,7 @@ function service:create(node, actor)
 	if self.nodes[node] then
 		return false, "conflict";
 	end
-	
+
 	self.nodes[node] = {
 		name = node;
 		subscribers = {};
diff --git a/util/sasl/scram.lua b/util/sasl/scram.lua
index cf2f0ede..31c078a0 100644
--- a/util/sasl/scram.lua
+++ b/util/sasl/scram.lua
@@ -73,11 +73,11 @@ local function validate_username(username, _nodeprep)
 			return false
 		end
 	end
-	
+
 	-- replace =2C with , and =3D with =
 	username = username:gsub("=2C", ",");
 	username = username:gsub("=3D", "=");
-	
+
 	-- apply SASLprep
 	username = saslprep(username);
 
@@ -108,12 +108,12 @@ end
 local function scram_gen(hash_name, H_f, HMAC_f)
 	local function scram_hash(self, message)
 		if not self.state then self["state"] = {} end
-	
+
 		if type(message) ~= "string" or #message == 0 then return "failure", "malformed-request" end
 		if not self.state.name then
 			-- we are processing client_first_message
 			local client_first_message = message;
-			
+
 			-- TODO: fail if authzid is provided, since we don't support them yet
 			self.state["client_first_message"] = client_first_message;
 			self.state["gs2_cbind_flag"], self.state["authzid"], self.state["name"], self.state["clientnonce"]
@@ -127,21 +127,21 @@ local function scram_gen(hash_name, H_f, HMAC_f)
 			if not self.state.name or not self.state.clientnonce then
 				return "failure", "malformed-request", "Channel binding isn't support at this time.";
 			end
-		
+
 			self.state.name = validate_username(self.state.name, self.profile.nodeprep);
 			if not self.state.name then
 				log("debug", "Username violates either SASLprep or contains forbidden character sequences.")
 				return "failure", "malformed-request", "Invalid username.";
 			end
-		
+
 			self.state["servernonce"] = generate_uuid();
-			
+
 			-- retreive credentials
 			if self.profile.plain then
 				local password, state = self.profile.plain(self, self.state.name, self.realm)
 				if state == nil then return "failure", "not-authorized"
 				elseif state == false then return "failure", "account-disabled" end
-				
+
 				password = saslprep(password);
 				if not password then
 					log("debug", "Password violates SASLprep.");
@@ -161,22 +161,22 @@ local function scram_gen(hash_name, H_f, HMAC_f)
 				local stored_key, server_key, iteration_count, salt, state = self.profile["scram_"..hashprep(hash_name)](self, self.state.name, self.realm);
 				if state == nil then return "failure", "not-authorized"
 				elseif state == false then return "failure", "account-disabled" end
-				
+
 				self.state.stored_key = stored_key;
 				self.state.server_key = server_key;
 				self.state.iteration_count = iteration_count;
 				self.state.salt = salt
 			end
-		
+
 			local server_first_message = "r="..self.state.clientnonce..self.state.servernonce..",s="..base64.encode(self.state.salt)..",i="..self.state.iteration_count;
 			self.state["server_first_message"] = server_first_message;
 			return "challenge", server_first_message
 		else
 			-- we are processing client_final_message
 			local client_final_message = message;
-			
+
 			self.state["channelbinding"], self.state["nonce"], self.state["proof"] = client_final_message:match("^c=(.*),r=(.*),.*p=(.*)");
-	
+
 			if not self.state.proof or not self.state.nonce or not self.state.channelbinding then
 				return "failure", "malformed-request", "Missing an attribute(p, r or c) in SASL message.";
 			end
@@ -184,10 +184,10 @@ local function scram_gen(hash_name, H_f, HMAC_f)
 			if self.state.nonce ~= self.state.clientnonce..self.state.servernonce then
 				return "failure", "malformed-request", "Wrong nonce in client-final-message.";
 			end
-			
+
 			local ServerKey = self.state.server_key;
 			local StoredKey = self.state.stored_key;
-			
+
 			local AuthMessage = "n=" .. s_match(self.state.client_first_message,"n=(.+)") .. "," .. self.state.server_first_message .. "," .. s_match(client_final_message, "(.+),p=.+")
 			local ClientSignature = HMAC_f(StoredKey, AuthMessage)
 			local ClientKey = binaryXOR(ClientSignature, base64.decode(self.state.proof))
diff --git a/util/sasl_cyrus.lua b/util/sasl_cyrus.lua
index 19684587..a0e8bd69 100644
--- a/util/sasl_cyrus.lua
+++ b/util/sasl_cyrus.lua
@@ -78,10 +78,10 @@ local function init(service_name)
 end
 
 -- create a new SASL object which can be used to authenticate clients
--- host_fqdn may be nil in which case gethostname() gives the value. 
+-- host_fqdn may be nil in which case gethostname() gives the value.
 --      For GSSAPI, this determines the hostname in the service ticket (after
 --      reverse DNS canonicalization, only if [libdefaults] rdns = true which
---      is the default).  
+--      is the default).
 function new(realm, service_name, app_name, host_fqdn)
 
 	init(app_name or service_name);
diff --git a/util/serialization.lua b/util/serialization.lua
index 8a259184..06e45054 100644
--- a/util/serialization.lua
+++ b/util/serialization.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/set.lua b/util/set.lua
index 7f45526e..e9dfec1b 100644
--- a/util/set.lua
+++ b/util/set.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -40,13 +40,13 @@ function set_mt.__eq(set1, set2)
 			return false;
 		end
 	end
-	
+
 	for item in pairs(set2) do
 		if not set1[item] then
 			return false;
 		end
 	end
-	
+
 	return true;
 end
 function set_mt.__tostring(set)
@@ -65,23 +65,23 @@ end
 function new(list)
 	local items = setmetatable({}, items_mt);
 	local set = { _items = items };
-	
+
 	function set:add(item)
 		items[item] = true;
 	end
-	
+
 	function set:contains(item)
 		return items[item];
 	end
-	
+
 	function set:items()
 		return items;
 	end
-	
+
 	function set:remove(item)
 		items[item] = nil;
 	end
-	
+
 	function set:add_list(list)
 		if list then
 			for _, item in ipairs(list) do
@@ -89,7 +89,7 @@ function new(list)
 			end
 		end
 	end
-	
+
 	function set:include(otherset)
 		for item in pairs(otherset) do
 			items[item] = true;
@@ -101,22 +101,22 @@ function new(list)
 			items[item] = nil;
 		end
 	end
-	
+
 	function set:empty()
 		return not next(items);
 	end
-	
+
 	if list then
 		set:add_list(list);
 	end
-	
+
 	return setmetatable(set, set_mt);
 end
 
 function union(set1, set2)
 	local set = new();
 	local items = set._items;
-	
+
 	for item in pairs(set1._items) do
 		items[item] = true;
 	end
@@ -124,14 +124,14 @@ function union(set1, set2)
 	for item in pairs(set2._items) do
 		items[item] = true;
 	end
-	
+
 	return set;
 end
 
 function difference(set1, set2)
 	local set = new();
 	local items = set._items;
-	
+
 	for item in pairs(set1._items) do
 		items[item] = (not set2._items[item]) or nil;
 	end
@@ -142,13 +142,13 @@ end
 function intersection(set1, set2)
 	local set = new();
 	local items = set._items;
-	
+
 	set1, set2 = set1._items, set2._items;
-	
+
 	for item in pairs(set1) do
 		items[item] = (not not set2[item]) or nil;
 	end
-	
+
 	return set;
 end
 
diff --git a/util/sql.lua b/util/sql.lua
index 63c399ff..b8c16e27 100644
--- a/util/sql.lua
+++ b/util/sql.lua
@@ -45,7 +45,7 @@ function String(n) return "String()" end
 };
 
 local functions = {
-	
+
 };
 
 local cmap = {
diff --git a/util/stanza.lua b/util/stanza.lua
index 7c214210..82601e63 100644
--- a/util/stanza.lua
+++ b/util/stanza.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -99,7 +99,7 @@ function stanza_mt:get_child(name, xmlns)
 		if (not name or child.name == name)
 			and ((not xmlns and self.attr.xmlns == child.attr.xmlns)
 				or child.attr.xmlns == xmlns) then
-			
+
 			return child;
 		end
 	end
@@ -152,7 +152,7 @@ end
 function stanza_mt:maptags(callback)
 	local tags, curr_tag = self.tags, 1;
 	local n_children, n_tags = #self, #tags;
-	
+
 	local i = 1;
 	while curr_tag <= n_tags and n_tags > 0 do
 		if self[i] == tags[curr_tag] then
@@ -258,13 +258,13 @@ end
 
 function stanza_mt.get_error(stanza)
 	local type, condition, text;
-	
+
 	local error_tag = stanza:get_child("error");
 	if not error_tag then
 		return nil, nil, nil;
 	end
 	type = error_tag.attr.type;
-	
+
 	for _, child in ipairs(error_tag.tags) do
 		if child.attr.xmlns == xmlns_stanzas then
 			if not text and child.name == "text" then
@@ -333,7 +333,7 @@ function deserialize(stanza)
 			stanza.tags = tags;
 		end
 	end
-	
+
 	return stanza;
 end
 
@@ -390,7 +390,7 @@ if do_pretty_printing then
 	local style_attrv = getstyle("red");
 	local style_tagname = getstyle("red");
 	local style_punc = getstyle("magenta");
-	
+
 	local attr_format = " "..getstring(style_attrk, "%s")..getstring(style_punc, "=")..getstring(style_attrv, "'%s'");
 	local top_tag_format = getstring(style_punc, "<")..getstring(style_tagname, "%s").."%s"..getstring(style_punc, ">");
 	--local tag_format = getstring(style_punc, "<")..getstring(style_tagname, "%s").."%s"..getstring(style_punc, ">").."%s"..getstring(style_punc, "</")..getstring(style_tagname, "%s")..getstring(style_punc, ">");
@@ -411,7 +411,7 @@ if do_pretty_printing then
 		end
 		return s_format(tag_format, t.name, attr_string, children_text, t.name);
 	end
-	
+
 	function stanza_mt.pretty_top_tag(t)
 		local attr_string = "";
 		if t.attr then
diff --git a/util/termcolours.lua b/util/termcolours.lua
index 6ef3b689..ef978364 100644
--- a/util/termcolours.lua
+++ b/util/termcolours.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/timer.lua b/util/timer.lua
index af1e57b6..0e10e144 100644
--- a/util/timer.lua
+++ b/util/timer.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -42,7 +42,7 @@ if not server.event then
 			end
 			new_data = {};
 		end
-		
+
 		local next_time = math_huge;
 		for i, d in pairs(data) do
 			local t, callback = d[1], d[2];
diff --git a/util/uuid.lua b/util/uuid.lua
index 796c8ee4..fc487c72 100644
--- a/util/uuid.lua
+++ b/util/uuid.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
diff --git a/util/xml.lua b/util/xml.lua
index 076490fa..6dbed65d 100644
--- a/util/xml.lua
+++ b/util/xml.lua
@@ -26,8 +26,8 @@ local parse_xml = (function()
 				attr[i] = nil;
 				local ns, nm = k:match(ns_pattern);
 				if nm ~= "" then
-					ns = ns_prefixes[ns]; 
-					if ns then 
+					ns = ns_prefixes[ns];
+					if ns then
 						attr[ns..":"..nm] = attr[k];
 						attr[k] = nil;
 					end
diff --git a/util/xmppstream.lua b/util/xmppstream.lua
index 4909678c..550170c9 100644
--- a/util/xmppstream.lua
+++ b/util/xmppstream.lua
@@ -1,7 +1,7 @@
 -- 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.
 --
@@ -42,21 +42,21 @@ _M.ns_pattern = ns_pattern;
 
 function new_sax_handlers(session, stream_callbacks)
 	local xml_handlers = {};
-	
+
 	local cb_streamopened = stream_callbacks.streamopened;
 	local cb_streamclosed = stream_callbacks.streamclosed;
 	local cb_error = stream_callbacks.error or function(session, e, stanza) error("XML stream error: "..tostring(e)..(stanza and ": "..tostring(stanza) or ""),2); end;
 	local cb_handlestanza = stream_callbacks.handlestanza;
-	
+
 	local stream_ns = stream_callbacks.stream_ns or xmlns_streams;
 	local stream_tag = stream_callbacks.stream_tag or "stream";
 	if stream_ns ~= "" then
 		stream_tag = stream_ns..ns_separator..stream_tag;
 	end
 	local stream_error_tag = stream_ns..ns_separator..(stream_callbacks.error_tag or "error");
-	
+
 	local stream_default_ns = stream_callbacks.default_ns;
-	
+
 	local stack = {};
 	local chardata, stanza = {};
 	local non_streamns_depth = 0;
@@ -75,7 +75,7 @@ function new_sax_handlers(session, stream_callbacks)
 			attr.xmlns = curr_ns;
 			non_streamns_depth = non_streamns_depth + 1;
 		end
-		
+
 		for i=1,#attr do
 			local k = attr[i];
 			attr[i] = nil;
@@ -85,7 +85,7 @@ function new_sax_handlers(session, stream_callbacks)
 				attr[k] = nil;
 			end
 		end
-		
+
 		if not stanza then --if we are not currently inside a stanza
 			if session.notopen then
 				if tagname == stream_tag then
@@ -102,7 +102,7 @@ function new_sax_handlers(session, stream_callbacks)
 			if curr_ns == "jabber:client" and name ~= "iq" and name ~= "presence" and name ~= "message" then
 				cb_error(session, "invalid-top-level-element");
 			end
-			
+
 			stanza = setmetatable({ name = name, attr = attr, tags = {} }, stanza_mt);
 		else -- we are inside a stanza, so add a tag
 			t_insert(stack, stanza);
@@ -151,22 +151,22 @@ function new_sax_handlers(session, stream_callbacks)
 			error("Failed to abort parsing");
 		end
 	end
-	
+
 	if lxp_supports_doctype then
 		xml_handlers.StartDoctypeDecl = restricted_handler;
 	end
 	xml_handlers.Comment = restricted_handler;
 	xml_handlers.ProcessingInstruction = restricted_handler;
-	
+
 	local function reset()
 		stanza, chardata = nil, {};
 		stack = {};
 	end
-	
+
 	local function set_session(stream, new_session)
 		session = new_session;
 	end
-	
+
 	return xml_handlers, { reset = reset, set_session = set_session };
 end