prosody-modules
7dec5d096bb8
mod_pubsub_text_interface/mod_pubsub_text_interface.lua

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mod_pubsub_text_interface/mod_pubsub_text_interface.lua @ 3925:7dec5d096bb8

mod_rest: Advertise "support" for text/plain
author Kim Alvefur <zash@zash.se>
date Fri, 28 Feb 2020 22:40:53 +0100
parent 3644:9980ea72ff91
child 4041:cb5ea9d25cb2
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>
parents:
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1 local st = require "util.stanza";
ca856a892719 mod_pubsub_text_interface: A chat interface to PubSub
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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 name = module:get_option_string("name", "PubSub Service on "..module.host);
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8 local help = name..[[
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9
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10 Commands:
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11
ca856a892719 mod_pubsub_text_interface: A chat interface to PubSub
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12 - `help` - this help message
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13 - `list` - list available nodes
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14 - `subscriptions` - list nodes you are subscribed to
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15 - `subscribe node` - subscribe to a node
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16 - `unsubscribe node` - unsubscribe from a node]];
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17 if pubsub.get_last_item then -- COMPAT not available in 0.10
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18 help = help .. "\n- `last node` - send the last item (again)"
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19 end
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20
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21 module:hook("message/host", function (event)
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22 local stanza = event.stanza;
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23 local body = stanza:get_child_text("body");
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24 if not body then return end -- bail out
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25
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26 local from = stanza.attr.from;
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27
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28 local reply = st.reply(stanza);
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29 reply.attr.id = id.medium();
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30
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31 local command, node_arg = body:match("^(%a+)%s+(.*)");
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32 command = (command or body):lower();
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33
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34 if command == "help" then
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35 reply:body(help);
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36 elseif command == "list" then
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37 local ok, nodes = pubsub:get_nodes(from);
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38 if ok then
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39 local list = {};
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40 for node, node_obj in pairs(nodes) do
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41 table.insert(list, ("- `%s` %s"):format(node, node_obj.config.title or ""));
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42 end
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43 reply:body(table.concat(list, "\n"));
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44 else
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45 reply:body(nodes);
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46 end
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47 elseif command == "subscriptions" then
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48 local ok, subs = pubsub:get_subscriptions(nil, from, from);
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49 if not ok then
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50 reply:body(subs);
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51 elseif #subs == 0 then
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52 reply:body("You are not subscribed to anything from this pubsub service");
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53 else
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54 local response = {};
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55 for i = 1, #subs do
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56 response[i] = string.format("- `%s`", subs[i].node);
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57 end
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58 reply:body(table.concat(response, "\n"));
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59 end
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60 elseif command == "subscribe" then
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61 local ok, err = pubsub:add_subscription(node_arg, from, jid.bare(from), { ["pubsub#include_body"] = true });
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62 reply:body(ok and "OK" or err);
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63 elseif command == "unsubscribe" then
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64 local ok, err = pubsub:remove_subscription(node_arg, from, jid.bare(from));
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65 reply:body(ok and "OK" or err);
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66 elseif command == "last" and pubsub.get_last_item then
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67 local ok, item_id, item = pubsub:get_last_item(node_arg, from);
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68 if not ok then
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69 reply:body(item_id); -- err message
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70 elseif not item_id then
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71 reply:body("node is empty");
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72 else
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73 pubsub.config.broadcaster("items", node_arg, {
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74 [from] = { ["pubsub#include_body"] = true }
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75 }, item);
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76 reply:body("OK");
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77 end
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78 else
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79 reply:body("Unknown command. `help` to list commands.");
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80 end
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81 reply:reset();
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82
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83 if stanza:get_child("request", "urn:xmpp:receipts") then
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84 reply:tag("received", { xmlns = "urn:xmpp:receipts", id = stanza.attr.id }):up();
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85 end
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86
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87 module:send(reply);
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88 return true;
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89 end);