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plugins/mod_http_altconnect.lua @ 13834:61df1404dd7a 13.0
mod_http: Fix IP address normalization (Thanks Boris)
This fixes the problem that an un-bracketed IPv6 address will not match
the first pattern (since it matches brackets) and instead the first
decimal digits will match the pattern meant to strip port numbers from
IPv4 addresses, e.g. 2001:db8::1 --> 2000
This pattern instead matches enough of a regular IPv4 address to make an
IPv6 address fall back to the last case.
| author | Kim Alvefur <zash@zash.se> |
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| date | Wed, 09 Apr 2025 15:54:54 +0200 |
| parent | 13718:569fae28a2f3 |
| rev | line source |
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1 -- mod_http_altconnect |
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2 -- XEP-0156: Discovering Alternative XMPP Connection Methods |
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3 |
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4 module:depends"http"; |
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5 |
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6 local mm = require "prosody.core.modulemanager"; |
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7 local json = require"prosody.util.json"; |
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8 local st = require"prosody.util.stanza"; |
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9 local array = require"prosody.util.array"; |
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10 |
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11 local advertise_bosh = module:get_option_boolean("advertise_bosh", true); |
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12 local advertise_websocket = module:get_option_boolean("advertise_websocket", true); |
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13 |
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14 local function get_supported() |
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15 local uris = array(); |
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16 if advertise_bosh and (mm.is_loaded(module.host, "bosh") or mm.is_loaded("*", "bosh")) then |
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17 uris:push({ rel = "urn:xmpp:alt-connections:xbosh", href = module:http_url("bosh", "/http-bind") }); |
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18 end |
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19 if advertise_websocket and (mm.is_loaded(module.host, "websocket") or mm.is_loaded("*", "websocket")) then |
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20 uris:push({ rel = "urn:xmpp:alt-connections:websocket", href = module:http_url("websocket", "xmpp-websocket"):gsub("^http", "ws") }); |
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21 end |
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22 return uris; |
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23 end |
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24 |
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25 |
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26 local function GET_xml(event) |
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27 local response = event.response; |
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28 local xrd = st.stanza("XRD", { xmlns='http://docs.oasis-open.org/ns/xri/xrd-1.0' }); |
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29 local uris = get_supported(); |
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30 for _, method in ipairs(uris) do |
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31 xrd:tag("Link", method):up(); |
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32 end |
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33 response.headers.content_type = "application/xrd+xml" |
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34 response.headers.access_control_allow_origin = "*"; |
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35 return '<?xml version="1.0" encoding="UTF-8"?>' .. tostring(xrd); |
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36 end |
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37 |
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38 local function GET_json(event) |
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39 local response = event.response; |
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40 local jrd = { links = get_supported() }; |
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41 response.headers.content_type = "application/json" |
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42 response.headers.access_control_allow_origin = "*"; |
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43 return json.encode(jrd); |
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44 end; |
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45 |
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46 module:provides("http", { |
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47 default_path = "/.well-known"; |
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48 route = { |
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49 ["GET /host-meta"] = GET_xml; |
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50 ["GET /host-meta.json"] = GET_json; |
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51 }; |
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52 }); |