prosody-modules
77ca0947647b
mod_flash_policy/mod_flash_policy.lua

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mod_flash_policy/mod_flash_policy.lua @ 395:77ca0947647b

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author leonbogaert@gmail.com
date Tue, 26 Jul 2011 13:19:09 +0000
parent 394:4219f69be1cf
child 1343:7dbde05b48a9
comparison
equal deleted inserted replaced
394:4219f69be1cf 395:77ca0947647b
1 local filters = require "util.filters"; 1 local filters = require "util.filters";
2 local config = {} 2 local config = {}
3 config.file = module:get_option_string("crossdomain_file", ""); 3 config.file = module:get_option_string("crossdomain_file", "");
4 config.string = module:get_option_string("crossdomain_string", [[<?xml version="1.0"?><!DOCTYPE cross-domain-policy SYSTEM "/xml/dtds/cross-domain-policy.dt$ 4 config.string = module:get_option_string("crossdomain_string", [[<?xml version="1.0"?><!DOCTYPE cross-domain-policy SYSTEM "/xml/dtds/cross-domain-policy.dtd"><cross-domain-policy><site-control permitted-cross-domain-policies="master-only"/><allow-access-from domain="*" /></cross-domain-policy>]]);
5 local string = '' 5 local string = ''
6 if not config.file ~= '' then 6 if not config.file ~= '' then
7 local f = assert(io.open(config.file)); 7 local f = assert(io.open(config.file));
8 string = f:read("*all"); 8 string = f:read("*all");
9 else 9 else
10 string = config.string 10 string = config.string
11 end 11 end
12 12
13 module:log("debug", "crossdomain string: "..string); 13 module:log("debug", "crossdomain string: "..string);
14 14
15 module:set_global(); 15 module:set_global();
16 16
17 function filter_policy(data, session) 17 function filter_policy(data, session)
18 -- Since we only want to check the first block of data, remove the filter 18 -- Since we only want to check the first block of data, remove the filter
19 filters.remove_filter(session, "bytes/in", filter_policy); 19 filters.remove_filter(session, "bytes/in", filter_policy);
20 if data == "<policy-file-request/>\0" then 20 if data == "<policy-file-request/>\0" then
21 session.send(string.."\0"); 21 session.send(string.."\0");
22 return nil; -- Drop data to prevent it reaching the XMPP parser 22 return nil; -- Drop data to prevent it reaching the XMPP parser
23 else 23 else
24 return data; -- Pass data through, it wasn't a policy request 24 return data; -- Pass data through, it wasn't a policy request
25 end 25 end
26 26
27 end 27 end
28 28
29 function filter_session(session) 29 function filter_session(session)
30 if session.type == "c2s_unauthed" then 30 if session.type == "c2s_unauthed" then
31 filters.add_filter(session, "bytes/in", filter_policy, -1); 31 filters.add_filter(session, "bytes/in", filter_policy, -1);
32 end 32 end
33 end 33 end
34 34
35 function module.load() 35 function module.load()
36 filters.add_filter_hook(filter_session); 36 filters.add_filter_hook(filter_session);
37 end 37 end
38 38
39 function module.unload() 39 function module.unload()
40 filters.remove_filter_hook(filter_session); 40 filters.remove_filter_hook(filter_session);
41 end 41 end