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annotate mod_sasl2_sm/mod_sasl2_sm.lua @ 5149:fa56ed2bacab

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mod_unified_push: Add support for multiple token backends, including stoage Now that we have ACLs by default, it is no longer necessary to be completely stateless. On 0.12, using storage has benefits over JWT, because it does not expose client JIDs to the push apps/services. In trunk, PASETO is stateless and does not expose client JIDs.
author Matthew Wild <mwild1@gmail.com>
date Sat, 14 Jan 2023 14:31:37 +0000
parents c92c87daa09e
children 92ce3859df63
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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:2";
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6 local xmlns_sm = "urn:xmpp:sm:3";
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7
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8 module:depends("sasl2");
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9
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10 -- Advertise what we can do
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11
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12 module:hook("advertise-sasl-features", function (event)
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13 local features = event.features;
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14 features:tag("sm", { xmlns = xmlns_sm }):up();
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15 end);
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16
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17 module:hook("advertise-bind-features", function (event)
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18 local features = event.features;
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19 features:tag("feature", { var = xmlns_sm }):up();
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20 end);
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21
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22 module:hook_tag(xmlns_sasl2, "authenticate", function (session, auth)
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23 -- Cache action for future processing (after auth success)
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24 session.sasl2_sm_request = auth:child_with_ns(xmlns_sm);
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25 end, 100);
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26
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27 -- SASL 2 integration (for resume)
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28
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29 module:hook("sasl2/c2s/success", function (event)
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30 local session = event.session;
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31 local sm_request = session.sasl2_sm_request;
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32 if not sm_request then return; end
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33 session.sasl2_sm_request = nil;
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34 local sm_result;
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35 if sm_request.name ~= "resume" then return; end
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36
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37 local resumed, err = mod_smacks.do_resume(session, sm_request);
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38 if not resumed then
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39 local h = err.context and err.context.h;
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40 sm_result = st.stanza("failed", { xmlns = xmlns_sm, h = h and ("%d"):format(h) or nil })
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41 :add_error(err);
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42 else
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43 event.session = resumed.session; -- Update to resumed session
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44 event.session.sasl2_sm_success = resumed; -- To be called after sending final SASL response
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45 sm_result = st.stanza("resumed", { xmlns = xmlns_sm,
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46 h = ("%d"):format(event.session.handled_stanza_count);
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47 previd = resumed.id; });
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48 end
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49
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50 if sm_result then
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51 event.success:add_child(sm_result);
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52 end
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53 end, 110);
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54
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55 -- Bind 2 integration (for enable)
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56
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57 module:hook("advertise-bind-features", function (event)
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58 event.features:tag("feature", { var = xmlns_sm }):up();
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59 end);
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60
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61 module:hook("enable-bind-features", function (event)
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62 local sm_enable = event.request:get_child("enable", xmlns_sm);
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63 if not sm_enable then return; end
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64
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65 local sm_result;
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66 local enabled, err = mod_smacks.do_enable(event.session, sm_enable);
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67 if not enabled then
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68 sm_result = st.stanza("failed", { xmlns = xmlns_sm })
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69 :add_error(err);
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70 else
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71 event.session.sasl2_sm_success = enabled; -- To be called after sending final SASL response
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72 sm_result = st.stanza("enabled", {
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73 xmlns = xmlns_sm;
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74 id = enabled.id;
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75 resume = enabled.id and "1" or nil;
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76 max = enabled.resume_max;
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77 });
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78 end
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79 event.result:add_child(sm_result);
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80 end, 100);
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81
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82 -- Finish and/or clean up after SASL 2 completed
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83
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84 module:hook("sasl2/c2s/success", function (event)
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85 -- The authenticate response has already been sent at this point
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86 local success = event.session.sasl2_sm_success;
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87 if success then
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88 success.finish(); -- Finish enable/resume and sync stanzas
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89 end
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90 end, -1100);
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91
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92 module:hook("sasl2/c2s/failure", function (event)
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93 event.session.sasl2_sm_request = nil;
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94 end);