Software / code / prosody
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util/discohelper.lua @ 602:a977227aa9e6
Return error when the given realm value does not match the sent realm value. Prevents impersonation of an account on one virtual host, but a user with the same username on another host.
| author | Waqas Hussain <waqas20@gmail.com> |
|---|---|
| date | Mon, 08 Dec 2008 03:23:37 +0500 |
| parent | 539:cbcadb1a6166 |
| child | 615:4ae3e81513f3 |
| rev | line source |
|---|---|
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1 -- Prosody IM v0.1 |
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2 -- Copyright (C) 2008 Matthew Wild |
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3 -- Copyright (C) 2008 Waqas Hussain |
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4 -- |
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5 -- This program is free software; you can redistribute it and/or |
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6 -- modify it under the terms of the GNU General Public License |
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7 -- as published by the Free Software Foundation; either version 2 |
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8 -- of the License, or (at your option) any later version. |
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9 -- |
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10 -- This program is distributed in the hope that it will be useful, |
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11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 -- GNU General Public License for more details. |
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14 -- |
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15 -- You should have received a copy of the GNU General Public License |
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16 -- along with this program; if not, write to the Free Software |
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17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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18 -- |
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19 |
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20 |
| 387 | 21 |
| 22 local t_insert = table.insert; | |
| 23 local jid_split = require "util.jid".split; | |
| 24 local ipairs = ipairs; | |
| 25 local st = require "util.stanza"; | |
| 26 | |
| 27 module "discohelper"; | |
| 28 | |
| 29 local function addDiscoItemsHandler(self, jid, func) | |
| 30 if self.item_handlers[jid] then | |
| 31 t_insert(self.item_handlers[jid], func); | |
| 32 else | |
| 33 self.item_handlers[jid] = {func}; | |
| 34 end | |
| 35 end | |
| 36 | |
| 37 local function addDiscoInfoHandler(self, jid, func) | |
| 38 if self.info_handlers[jid] then | |
| 39 t_insert(self.info_handlers[jid], func); | |
| 40 else | |
| 41 self.info_handlers[jid] = {func}; | |
| 42 end | |
| 43 end | |
| 44 | |
| 45 local function handle(self, stanza) | |
| 46 if stanza.name == "iq" and stanza.tags[1].name == "query" then | |
| 47 local query = stanza.tags[1]; | |
| 48 local to = stanza.attr.to; | |
| 49 local from = stanza.attr.from | |
| 50 local node = query.attr.node or ""; | |
| 51 local to_node, to_host = jid_split(to); | |
| 52 | |
| 53 local reply = st.reply(stanza):query(query.attr.xmlns); | |
| 54 local handlers; | |
| 55 if query.attr.xmlns == "http://jabber.org/protocol/disco#info" then -- select handler set | |
| 56 handlers = self.info_handlers; | |
| 57 elseif query.attr.xmlns == "http://jabber.org/protocol/disco#items" then | |
| 58 handlers = self.item_handlers; | |
| 59 end | |
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cbcadb1a6166
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parents:
519
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60 local handler; |
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parents:
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61 local found; -- to keep track of any handlers found |
| 387 | 62 if to_node then -- handlers which get called always |
| 63 handler = handlers["*node"]; | |
| 64 else | |
| 65 handler = handlers["*host"]; | |
| 66 end | |
| 67 if handler then -- call always called handler | |
| 68 for _, h in ipairs(handler) do | |
| 69 if h(reply, to, from, node) then found = true; end | |
| 70 end | |
| 71 end | |
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parents:
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72 handler = handlers[to]; -- get the handler |
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parents:
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73 if not handler then -- if not found then use default handler |
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parents:
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74 if to_node then |
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parents:
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75 handler = handlers["*defaultnode"]; |
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parents:
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76 else |
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77 handler = handlers["*defaulthost"]; |
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78 end |
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parents:
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79 end |
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cbcadb1a6166
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Waqas Hussain <waqas20@gmail.com>
parents:
519
diff
changeset
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80 if handler then |
|
cbcadb1a6166
Reorder the disco info elements to place always included elements first
Waqas Hussain <waqas20@gmail.com>
parents:
519
diff
changeset
|
81 for _, h in ipairs(handler) do |
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cbcadb1a6166
Reorder the disco info elements to place always included elements first
Waqas Hussain <waqas20@gmail.com>
parents:
519
diff
changeset
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82 if h(reply, to, from, node) then found = true; end |
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cbcadb1a6166
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Waqas Hussain <waqas20@gmail.com>
parents:
519
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83 end |
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cbcadb1a6166
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Waqas Hussain <waqas20@gmail.com>
parents:
519
diff
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84 end |
| 387 | 85 if found then return reply; end -- return the reply if there was one |
| 86 return st.error_reply(stanza, "cancel", "service-unavailable"); | |
| 87 end | |
| 88 end | |
| 89 | |
| 90 function new() | |
| 91 return { | |
| 92 item_handlers = {}; | |
| 93 info_handlers = {}; | |
| 94 addDiscoItemsHandler = addDiscoItemsHandler; | |
| 95 addDiscoInfoHandler = addDiscoInfoHandler; | |
| 96 handle = handle; | |
| 97 }; | |
| 98 end | |
| 99 | |
| 100 return _M; |
