Mercurial > prosody-modules

annotate mod_pubsub_text_interface/mod_pubsub_text_interface.lua @ 5245:e22cae58141d

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mod_http_oauth2: Organize HTTP routes with comments Starting to get hard to follow. Usually one would start tracing the steps at the HTTP authorize route. Vaguely sorted alphabetically by path and point in the flow. (/register comes before /authorize tho)
author Kim Alvefur <zash@zash.se>
date Sun, 12 Mar 2023 11:27:29 +0100
parents e0d0ef564095
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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ca856a892719 mod_pubsub_text_interface: A chat interface to PubSub
Kim Alvefur <zash@zash.se>
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1 local st = require "util.stanza";
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2 local jid = require "util.jid";
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ada7a0c7221c mod_pubsub_text_interface: Generate a stanza id for replies
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3 local id = require "util.id";
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4
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5 local pubsub = module:depends "pubsub".service;
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6
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7 local xmlns_quick_resp = "urn:xmpp:tmp:quick-response";
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8 local name = module:get_option_string("name", "PubSub Service on "..module.host);
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9 local help = name..[[
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10
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11 Commands:
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12
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13 - `help` - this help message
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14 - `list` - list available nodes
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15 - `subscriptions` - list nodes you are subscribed to
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16 - `subscribe NODE` - subscribe to a node
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17 - `unsubscribe NODE` - unsubscribe from a node]];
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18 if pubsub.get_last_item then -- COMPAT not available in 0.10
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19 help = help .. "\n- `last NODE` - send the last item (again)"
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20 end
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21 -- FIXME better word for "node"
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22
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23 local friendly_pubsub_errors = {
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24 ["forbidden"] = "You are not allowed to do that";
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25 ["item-not-found"] = "That node does not exist";
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26 ["internal-server-error"] = "Something went wrong (see server logs)";
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27 ["not-subscribed"] = "You were not subscribed";
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28 };
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29
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30 module:hook("message/host", function (event)
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31 local stanza = event.stanza;
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32 local body = stanza:get_child_text("body");
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33 if not body then return end -- bail out
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34
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35 local from = stanza.attr.from;
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36
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37 local reply = st.reply(stanza);
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38 reply.attr.id = id.medium();
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39
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40 local command, node_arg = body:match("^(%a+)%s+(.*)");
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41 command = (command or body):lower();
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42
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43 if command == "help" then
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44 reply:body(help):up();
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45 reply:tag("response", { xmlns = xmlns_quick_resp, value = "list", }):up();
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46 reply:tag("response", { xmlns = xmlns_quick_resp, value = "subscriptions", }):up();
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47 elseif command == "list" then
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48 local ok, nodes = pubsub:get_nodes(from);
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49 if ok then
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50 local list = {};
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51 for node, node_obj in pairs(nodes) do
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52 table.insert(list, ("- `%s` %s"):format(node, node_obj.config.title or ""));
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53 end
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54 reply:body(table.concat(list, "\n"));
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55 else
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56 reply:body(friendly_pubsub_errors[nodes] or nodes);
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57 end
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58 elseif command == "subscriptions" then
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59 local ok, subs = pubsub:get_subscriptions(nil, from, from);
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60 if not ok then
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61 reply:body(friendly_pubsub_errors[subs] or subs);
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62 elseif #subs == 0 then
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63 reply:body("You are not subscribed to anything from this pubsub service");
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64 else
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65 local response = {};
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66 for i = 1, #subs do
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67 response[i] = string.format("- `%s`", subs[i].node);
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68 reply:tag("response", { xmlns = xmlns_quick_resp, value = "unsubscribe "..subs[i].node, }):up();
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69 reply:tag("response", { xmlns = xmlns_quick_resp, value = "last "..subs[i].node, }):up();
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70 end
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71 reply:body(table.concat(response, "\n"));
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72 end
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73 elseif command == "subscribe" then
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74 local ok, err = pubsub:add_subscription(node_arg, from, jid.bare(from), { ["pubsub#include_body"] = true });
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75 reply:body(ok and "OK" or friendly_pubsub_errors[err] or err);
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76 elseif command == "unsubscribe" then
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77 local ok, err = pubsub:remove_subscription(node_arg, from, jid.bare(from));
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78 reply:body(ok and "OK" or friendly_pubsub_errors[err] or err);
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79 elseif command == "last" and pubsub.get_last_item then
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80 local ok, item_id, item = pubsub:get_last_item(node_arg, from);
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81 if not ok then
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82 reply:body(friendly_pubsub_errors[item_id] or item_id);
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83 elseif not item_id then
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84 reply:body("That node does not contain any items");
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85 else
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86 pubsub.config.broadcaster("items", node_arg, {
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87 [from] = { ["pubsub#include_body"] = true }
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88 }, item, nil, pubsub.nodes[node_arg]);
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89 reply:body("OK");
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90 end
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91 else
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92 reply:body("Unknown command. `help` to list commands."):up();
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93 reply:tag("response", { xmlns = xmlns_quick_resp, value = "help", }):up();
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94 end
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95 reply:reset();
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96
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97 if stanza:get_child("no-copy", "urn:xmpp:hints") then
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98 reply:tag("no-copy", { xmlns = "urn:xmpp:hints" }):up();
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99 end
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100
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101 if stanza:get_child("no-store", "urn:xmpp:hints") then
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102 reply:tag("no-store", { xmlns = "urn:xmpp:hints" }):up();
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103 end
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104
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105 module:send(reply);
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106 return true;
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107 end);