X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=util%2Fjid.lua;h=8e0a784cc49abb3a0a25531043f993e23ed0cf13;hb=533fc1fa57ce10fc0821f8edaeb247f2710a543c;hp=ba9730fa3c57d3a85eb3aa8b22d19199ea256d4f;hpb=4643eae0bf41b461c9337bfb66f9ac80f7e84f11;p=prosody.git

diff --git a/util/jid.lua b/util/jid.lua
index ba9730fa..8e0a784c 100644
--- a/util/jid.lua
+++ b/util/jid.lua
@@ -8,16 +8,26 @@
 
 
 
-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);
@@ -37,6 +47,9 @@ 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
@@ -78,4 +91,20 @@ function join(node, host, resource)
 	return nil; -- Invalid JID
 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 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;