Mercurial > prosody-modules
annotate mod_isr/mod_isr.lua @ 5461:06640647d193
mod_http_oauth2: Fix use of arbitrary ports in loopback redirect URIs
Per draft-ietf-oauth-v2-1-08#section-8.4.2
> The authorization server MUST allow any port to be specified at the
> time of the request for loopback IP redirect URIs, to accommodate
> clients that obtain an available ephemeral port from the operating
> system at the time of the request.
Uncertain if it should normalize the host part, but it also seems
harmless to treat IPv6 and IPv4 the same here.
One thing is that "localhost" is NOT RECOMMENDED because it can
sometimes be pointed to non-loopback interfaces via DNS or hosts file.
author | Kim Alvefur <zash@zash.se> |
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date | Wed, 17 May 2023 13:51:30 +0200 |
parents | 1cb762f72a91 |
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rev | line source |
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1 local st = require "util.stanza"; |
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2 |
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3 local mod_smacks = module:depends("smacks"); |
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4 |
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5 local xmlns_sasl2 = "urn:xmpp:sasl:1"; |
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6 local xmlns_sm = "urn:xmpp:sm:3"; |
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7 local xmlns_isr = "https://xmpp.org/extensions/isr/0"; |
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8 local xmlns_errors = "urn:ietf:params:xml:ns:xmpp-stanzas"; |
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9 |
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10 module:hook_tag(xmlns_sasl2, "authenticate", function (session, auth) |
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11 local isr_resume = auth:get_child("inst-resume", xmlns_isr); |
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12 if not isr_resume then return end |
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13 local is_using_token = isr_resume.attr["with-isr-token"] ~= "false"; |
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14 if is_using_token then |
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15 -- TODO: If authing with token, set session.sasl_handler to our own |
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16 -- event.session.sasl_handler = ... |
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17 error("not yet implemented"); |
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18 end |
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19 |
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20 -- Cache resume element for future processing after SASL success |
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21 session.isr_sm_resume = isr_resume:get_child("resume", "urn:xmpp:sm:3"); |
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22 end, 100); |
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23 |
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24 module:hook("sasl2/c2s/success", function (event) |
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25 local session = event.session; |
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26 local sm_resume = session.isr_sm_resume; |
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27 if sm_resume then |
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28 session.isr_sm_resume = nil; |
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29 local resumed, err = mod_smacks.do_resume(session, sm_resume); |
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30 if not resumed then |
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31 local failed = st.stanza("failed", { xmlns = xmlns_sm, h = ("%d"):format(err.context.h) }) |
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32 :tag(err.condition, { xmlns = xmlns_errors }); |
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33 event.success:add_child(failed); |
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34 else |
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35 event.session = resumed.session; |
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36 event.isr_resumed = resumed; |
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37 event.success:tag("resumed", { xmlns = xmlns_sm, |
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38 h = ("%d"):format(event.session.handled_stanza_count); |
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39 previd = resumed.id; }):up(); |
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40 end |
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41 end |
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42 end, 100); |
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43 |
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44 module:hook("sasl2/c2s/success", function (event) |
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45 -- The authenticate response has already been sent at this point |
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46 local resumed = event.isr_resumed; |
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47 if resumed then |
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48 resumed.finish(); -- Finish resume and sync stanzas |
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49 end |
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50 end, -1100); |
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51 |
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52 module:hook("sasl2/c2s/failure", function (event) |
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53 event.session.isr_sm_resume = nil; |
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54 end); |
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55 |