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annotate mod_pubsub_text_interface/mod_pubsub_text_interface.lua @ 3492:f59334da6df9

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mod_conversejs: Show fallback text if converse.js fails to load (thanks MattJ) This can happen if javascript is enabled but 3rd party resources are blocked, or some other error happened.
author Kim Alvefur <zash@zash.se>
date Tue, 19 Mar 2019 19:43:13 +0100
parents 33b3f02a9e7d
children 9980ea72ff91
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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";
ca856a892719 mod_pubsub_text_interface: A chat interface to PubSub
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2 local jid = require "util.jid";
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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
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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 module:send(reply);
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82 return true;
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83 end);