util.pluginloader: Return full file path from internal file loader on success, not...

[prosody.git] / util / jid.lua

diff --git a/util/jid.lua b/util/jid.lua
index 6c387868f5adcba7a082d16a2f9e92457b4e84b6..069817c6167c46d0fffbe2a4e98bb71f604474b2 100644 (file)
--- a/util/jid.lua
+++ b/util/jid.lua
@@ -1,44 +1,94 @@
--- Prosody IM v0.1
--- Copyright (C) 2008 Matthew Wild
--- Copyright (C) 2008 Waqas Hussain
+-- Prosody IM
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 Waqas Hussain
 -- 
--- This program is free software; you can redistribute it and/or
--- modify it under the terms of the GNU General Public License
--- as published by the Free Software Foundation; either version 2
--- of the License, or (at your option) any later version.
--- 
--- This program is distributed in the hope that it will be useful,
--- but WITHOUT ANY WARRANTY; without even the implied warranty of
--- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--- GNU General Public License for more details.
--- 
--- You should have received a copy of the GNU General Public License
--- along with this program; if not, write to the Free Software
--- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
 --
 
 
 
 local match = string.match;
+local nodeprep = require "util.encodings".stringprep.nodeprep;
+local nameprep = require "util.encodings".stringprep.nameprep;
+local resourceprep = require "util.encodings".stringprep.resourceprep;
 
 module "jid"
 
-function split(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);
        if (not host) or ((not resource) and #jid >= hostpos) then return nil, nil, nil; end
        return node, host, resource;
 end
+split = _split;
 
 function bare(jid)
-       local node, host = split(jid);
+       local node, host = _split(jid);
        if node and host then
                return node.."@"..host;
        end
        return host;
 end
 
+local function _prepped_split(jid)
+       local node, host, resource = _split(jid);
+       if host then
+               host = nameprep(host);
+               if not host then return; end
+               if node then
+                       node = nodeprep(node);
+                       if not node then return; end
+               end
+               if resource then
+                       resource = resourceprep(resource);
+                       if not resource then return; end
+               end
+               return node, host, resource;
+       end
+end
+prepped_split = _prepped_split;
+
+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
+       end
+       return host;
+end
+
+function join(node, host, resource)
+       if node and host and resource then
+               return node.."@"..host.."/"..resource;
+       elseif node and host then
+               return node.."@"..host;
+       elseif host and resource then
+               return host.."/"..resource;
+       elseif host then
+               return host;
+       end
+       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
+
 return _M;