X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=util%2Fjid.lua;h=27afab3e275e2de573e8b18f6211a7fbebfb5476;hb=95dfe4b0aaaf26ee4651c09eb9757c56210a135a;hp=4f8b6d4161d25e7a3819616591ab2a9db59351b6;hpb=14b07e19c6db6eefe35fac05b1772e7ee9a74436;p=prosody.git

diff --git a/util/jid.lua b/util/jid.lua
index 4f8b6d41..27afab3e 100644
--- a/util/jid.lua
+++ b/util/jid.lua
@@ -1,23 +1,33 @@
--- Prosody IM v0.4
--- Copyright (C) 2008-2009 Matthew Wild
--- Copyright (C) 2008-2009 Waqas Hussain
--- 
+-- 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.
 --
 
 
 
-local match = string.match;
+local match, sub = string.match, string.sub;
 local nodeprep = require "util.encodings".stringprep.nodeprep;
 local nameprep = require "util.encodings".stringprep.nameprep;
 local resourceprep = require "util.encodings".stringprep.resourceprep;
 
+local escapes = {
+	[" "] = "\\20"; ['"'] = "\\22";
+	["&"] = "\\26"; ["'"] = "\\27";
+	["/"] = "\\2f"; [":"] = "\\3a";
+	["<"] = "\\3c"; [">"] = "\\3e";
+	["@"] = "\\40"; ["\\"] = "\\5c";
+};
+local unescapes = {};
+for k,v in pairs(escapes) do unescapes[v] = k; end
+
 module "jid"
 
 local function _split(jid)
 	if not jid then return; end
-	local node, nodepos = match(jid, "^([^@]+)@()");
+	local node, nodepos = match(jid, "^([^@/]+)@()");
 	local host, hostpos = match(jid, "^([^@/]+)()", nodepos)
 	if node and not host then return nil, nil, nil; end
 	local resource = match(jid, "^/(.+)$", hostpos);
@@ -27,16 +37,15 @@ end
 split = _split;
 
 function bare(jid)
-	local node, host = _split(jid);
-	if node and host then
-		return node.."@"..host;
-	end
-	return host;
+	return jid and match(jid, "^[^/]+");
 end
 
 local function _prepped_split(jid)
 	local node, host, resource = _split(jid);
 	if host then
+		if sub(host, -1, -1) == "." then -- Strip empty root label
+			host = sub(host, 1, -2);
+		end
 		host = nameprep(host);
 		if not host then return; end
 		if node then
@@ -52,17 +61,38 @@ local function _prepped_split(jid)
 end
 prepped_split = _prepped_split;
 
+local function _join(node, host, resource)
+	if not host then return end
+	if node and resource then
+		return node.."@"..host.."/"..resource;
+	elseif node then
+		return node.."@"..host;
+	elseif resource then
+		return host.."/"..resource;
+	end
+	return host;
+end
+join = _join;
+
 function prep(jid)
 	local node, host, resource = _prepped_split(jid);
-	if host then
-		if node then
-			host = node .. "@" .. host;
-		end
-		if resource then
-			host = host .. "/" .. resource;
-		end
+	return _join(node, host, resource);
+end
+
+function compare(jid, acl)
+	-- compare jid to single acl rule
+	-- TODO compare to table of rules?
+	local jid_node, jid_host, jid_resource = _split(jid);
+	local acl_node, acl_host, acl_resource = _split(acl);
+	if ((acl_node ~= nil and acl_node == jid_node) or acl_node == nil) and
+		((acl_host ~= nil and acl_host == jid_host) or acl_host == nil) and
+		((acl_resource ~= nil and acl_resource == jid_resource) or acl_resource == nil) then
+		return true
 	end
-	return host;
+	return false
 end
 
+function escape(s) return s and (s:gsub(".", escapes)); end
+function unescape(s) return s and (s:gsub("\\%x%x", unescapes)); end
+
 return _M;