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1 local filters = require "util.filters"; |
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2 local config = {} |
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3 config.file = module:get_option_string("crossdomain_file", ""); |
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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>]]); |
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5 local string = '' |
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6 if not config.file ~= '' then |
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7 local f = assert(io.open(config.file)); |
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8 string = f:read("*all"); |
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9 else |
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10 string = config.string |
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11 end |
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12 |
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13 module:log("debug", "crossdomain string: "..string); |
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14 |
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15 module:set_global(); |
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16 |
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17 function filter_policy(data, session) |
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18 -- Since we only want to check the first block of data, remove the filter |
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19 filters.remove_filter(session, "bytes/in", filter_policy); |
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20 if data == "<policy-file-request/>\0" then |
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21 session.send([[<?xml version="1.0"?> |
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22 <!DOCTYPE cross-domain-policy SYSTEM "/xml/dtds/cross-domain-policy.dtd"> |
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23 <cross-domain-policy> |
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24 <site-control permitted-cross-domain-policies="master-only"/> |
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25 <allow-access-from domain="livechat.concepts.tim-online.nl" to-ports="5222" /> |
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26 </cross-domain-policy>]].."\0"); |
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27 return nil; -- Drop data to prevent it reaching the XMPP parser |
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28 else |
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29 return data; -- Pass data through, it wasn't a policy request |
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30 end |
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31 |
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32 end |
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33 |
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34 function filter_session(session) |
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35 if session.type == "c2s_unauthed" then |
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36 filters.add_filter(session, "bytes/in", filter_policy, -1); |
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37 end |
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38 end |
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39 |
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40 function module.load() |
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41 filters.add_filter_hook(filter_session); |
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42 end |
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43 |
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44 function module.unload() |
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45 filters.remove_filter_hook(filter_session); |
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46 end |
