Mercurial > prosody-modules

annotate mod_pubsub_feeds/mod_pubsub_feeds.lua @ 3396:3bf847dbb063

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mod_csi: Update README
author Matthew Wild <mwild1@gmail.com>
date Wed, 05 Dec 2018 14:12:35 +0000
parents 27cc66bf918b
children 281a864e7472
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
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1 -- Fetches Atom feeds and publishes to PubSub nodes
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
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2 --
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
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3 -- Config:
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
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4 -- Component "pubsub.example.com" "pubsub"
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5 -- modules_enabled = {
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6 -- "pubsub_feeds";
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7 -- }
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8 -- feeds = { -- node -> url
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aa0df3db4901 mod_pubsub_feed: Wrap entry in a item element.
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9 -- prosody_blog = "http://blog.prosody.im/feed/atom.xml";
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10 -- }
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11 -- feed_pull_interval = 20 -- minutes
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12 --
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13 -- Reference
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480c6f0576b1 mod_pubsub_feeds: Update to 0.4 version of PubSubHubbub
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14 -- http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.4.html
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15
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db27f07342d4 mod_pubsub_feeds: Use reference to mod_pubsub from module:depends
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16 local pubsub = module:depends"pubsub";
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17
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18 local time = os.time;
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b21236b6b8d8 Backed out changeset 853a382c9bd6
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19 local dt_parse, dt_datetime = require "util.datetime".parse, require "util.datetime".datetime;
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433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
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20 local uuid = require "util.uuid".generate;
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04cf0b75fe2a mod_pubsub_feeds: Use HMAC-SHA1 from util.hashes (util.hmac was deprecated)
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21 local hmac_sha1 = require "util.hashes".hmac_sha1;
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0fe725b50f77 mod_pubsub_feeds.lua: util.xml not uit.xml
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22 local parse_xml = require "util.xml".parse;
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23 local st = require "util.stanza";
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24 local translate_rss = module:require("feeds").translate_rss;
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26 local xmlns_atom = "http://www.w3.org/2005/Atom";
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28 local function parse_feed(data)
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29 local feed, err = parse_xml(data);
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30 if not feed then return feed, err; end
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31 if feed.attr.xmlns == xmlns_atom then
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32 return feed;
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33 elseif feed.attr.xmlns == nil and feed.name == "rss" then
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34 return translate_rss(feed);
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35 end
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36 return nil, "unsupported-format";
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37 end
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38
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39 local use_pubsubhubub = module:get_option_boolean("use_pubsubhubub", true);
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40 if use_pubsubhubub then
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41 module:depends"http";
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42 end
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44 local http = require "net.http";
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45 local formdecode = http.formdecode;
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46 local formencode = http.formencode;
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48 local feed_list = module:shared("feed_list");
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49 local refresh_interval = module:get_option_number("feed_pull_interval", 15) * 60;
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7a1625a84624 mod_pubsub_feeds: Ask for leases that expire after one day (Years after testing this module, I was still subscribed to a GNU Social instance)
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50 local lease_length = tostring(math.floor(module:get_option_number("feed_lease_length", 86400)));
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51
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52 function module.load()
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53 local config = module:get_option("feeds", { });
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54 local ok, nodes = pubsub.service:get_nodes(true);
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55 if not ok then nodes = {}; end
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56 local new_feed_list = {};
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57 for node, url in pairs(config) do
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58 if type(node) == "number" then
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59 node = url;
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60 end
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61 new_feed_list[node] = true;
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62 if not feed_list[node] then
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63 feed_list[node] = { url = url; node = node; last_update = 0 };
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64 else
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65 feed_list[node].url = url;
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66 end
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67 if not nodes[node] then
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68 feed_list[node].last_update = 0;
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69 end
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70 end
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71 for node in pairs(feed_list) do
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72 if not new_feed_list[node] then
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73 feed_list[node] = nil;
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74 end
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75 end
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76 end
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77
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78 function update_entry(item)
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79 local node = item.node;
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80 module:log("debug", "parsing %d bytes of data in node %s", #item.data or 0, node)
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81 local feed, err = parse_feed(item.data);
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82 if not feed then
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83 module:log("error", "Could not parse feed %q: %s", item.url, err);
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84 module:log("debug", "Feed data:\n%s\n.", item.data);
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85 return;
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86 end
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87 local entries = {};
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88 for entry in feed:childtags("entry") do
2379
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89 table.insert(entries, entry);
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90 end
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91 local ok, items = pubsub.service:get_items(node, true);
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92 if not ok then
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93 local ok, err = pubsub.service:create(node, true);
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94 if not ok then
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95 module:log("error", "Could not create node %s: %s", node, err);
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96 return;
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97 end
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98 items = {};
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99 end
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100 for i = #entries, 1, -1 do -- Feeds are usually in reverse order
2381
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Kim Alvefur <zash@zash.se>
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101 local entry = entries[i];
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102 entry.attr.xmlns = xmlns_atom;
322
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103
403
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104 local e_published = entry:get_child_text("published");
322
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105 e_published = e_published and dt_parse(e_published);
403
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106 local e_updated = entry:get_child_text("updated");
322
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107 e_updated = e_updated and dt_parse(e_updated);
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108
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109 local timestamp = e_updated or e_published or nil;
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110 --module:log("debug", "timestamp is %s, item.last_update is %s", tostring(timestamp), tostring(item.last_update));
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111 if not timestamp or not item.last_update or timestamp > item.last_update then
403
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parents: 402
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112 local id = entry:get_child_text("id");
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113 if not id then
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parents: 2379
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114 local link = entry:get_child("link");
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parents: 2379
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115 id = link and link.attr.href;
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116 end
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117 if not id then
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diff changeset
118 -- Sigh, no link?
2f083426fe98 mod_pubsub_feeds: Use URL as ID if no id set. If that's not there either then hash stuff and call it a day
Kim Alvefur <zash@zash.se>
parents: 2379
diff changeset
119 id = feed.url .. "#" .. hmac_sha1(feed.url, tostring(entry), true) .. "@" .. dt_datetime(timestamp);
2f083426fe98 mod_pubsub_feeds: Use URL as ID if no id set. If that's not there either then hash stuff and call it a day
Kim Alvefur <zash@zash.se>
parents: 2379
diff changeset
120 end
2383
18323c6aa133 mod_pubsub_feeds: Halt feed parsing when we see a node we already know about
Kim Alvefur <zash@zash.se>
parents: 2382
diff changeset
121 if items[id] then
18323c6aa133 mod_pubsub_feeds: Halt feed parsing when we see a node we already know about
Kim Alvefur <zash@zash.se>
parents: 2382
diff changeset
122 -- Assume that this existing means we've added all new items
2384
feba6439b6fb mod_pubsub_feeds: Add fixme for future
Kim Alvefur <zash@zash.se>
parents: 2383
diff changeset
123 -- FIXME Entries updated after publishing ...
2383
18323c6aa133 mod_pubsub_feeds: Halt feed parsing when we see a node we already know about
Kim Alvefur <zash@zash.se>
parents: 2382
diff changeset
124 break;
18323c6aa133 mod_pubsub_feeds: Halt feed parsing when we see a node we already know about
Kim Alvefur <zash@zash.se>
parents: 2382
diff changeset
125 end
3242
fe4194f10c75 mod_pubsub_feeds: Include pubsub namespace on wrapper item as required by mod_pubsub
Kim Alvefur <zash@zash.se>
parents: 3047
diff changeset
126 local xitem = st.stanza("item", { id = id, xmlns = "http://jabber.org/protocol/pubsub" }):add_child(entry);
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
127 -- TODO Put data from /feed into item/source
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
128
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
129 --module:log("debug", "publishing to %s, id %s", node, id);
792
db27f07342d4 mod_pubsub_feeds: Use reference to mod_pubsub from module:depends
Kim Alvefur <zash@zash.se>
parents: 765
diff changeset
130 local ok, err = pubsub.service:publish(node, true, id, xitem);
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
131 if not ok then
2382
f159ad7ac18a mod_pubsub_feeds: Check if node exists earlier and attempt to create it if not
Kim Alvefur <zash@zash.se>
parents: 2381
diff changeset
132 module:log("error", "Publishing to node %s failed: %s", node, err);
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
133 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
134 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
135 end
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
136
1457
720ff25d94e6 mod_pubsub_feeds: Check that lease time exists before comparing
Kim Alvefur <zash@zash.se>
parents: 1456
diff changeset
137 if item.lease_expires and item.lease_expires > time() then
1455
13e359c48b5b mod_pubsub_feeds: Fix refreshing of subscriptions
Kim Alvefur <zash@zash.se>
parents: 1454
diff changeset
138 item.subscription = nil;
13e359c48b5b mod_pubsub_feeds: Fix refreshing of subscriptions
Kim Alvefur <zash@zash.se>
parents: 1454
diff changeset
139 item.lease_expires = nil;
13e359c48b5b mod_pubsub_feeds: Fix refreshing of subscriptions
Kim Alvefur <zash@zash.se>
parents: 1454
diff changeset
140 end
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
141 if use_pubsubhubub and not item.subscription then
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
142 --module:log("debug", "check if %s has a hub", item.node);
2132
b149ea428b81 mod_pubsub_feeds: Switch to use util.xml for parsing feeds and include RSS to Atom translation code from lua-feeds
Kim Alvefur <zash@zash.se>
parents: 1457
diff changeset
143 for link in feed:childtags("link") do
b149ea428b81 mod_pubsub_feeds: Switch to use util.xml for parsing feeds and include RSS to Atom translation code from lua-feeds
Kim Alvefur <zash@zash.se>
parents: 1457
diff changeset
144 if link.attr.rel == "hub" then
b149ea428b81 mod_pubsub_feeds: Switch to use util.xml for parsing feeds and include RSS to Atom translation code from lua-feeds
Kim Alvefur <zash@zash.se>
parents: 1457
diff changeset
145 item.hub = link.attr.href;
b149ea428b81 mod_pubsub_feeds: Switch to use util.xml for parsing feeds and include RSS to Atom translation code from lua-feeds
Kim Alvefur <zash@zash.se>
parents: 1457
diff changeset
146 module:log("debug", "Node %s has a hub: %s", item.node, item.hub);
b149ea428b81 mod_pubsub_feeds: Switch to use util.xml for parsing feeds and include RSS to Atom translation code from lua-feeds
Kim Alvefur <zash@zash.se>
parents: 1457
diff changeset
147 return subscribe(item);
b149ea428b81 mod_pubsub_feeds: Switch to use util.xml for parsing feeds and include RSS to Atom translation code from lua-feeds
Kim Alvefur <zash@zash.se>
parents: 1457
diff changeset
148 end
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
149 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
150 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
151 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
152
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
153 function fetch(item, callback) -- HTTP Pull
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
154 local headers = { };
3047
7c55f05327a2 mod_pubsub_feeds: Use ETag instead of problematic If-Modified-Since
Kim Alvefur <zash@zash.se>
parents: 2645
diff changeset
155 if item.data and item.etag then
7c55f05327a2 mod_pubsub_feeds: Use ETag instead of problematic If-Modified-Since
Kim Alvefur <zash@zash.se>
parents: 2645
diff changeset
156 headers["If-None-Match"] = item.etag;
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
157 end
3047
7c55f05327a2 mod_pubsub_feeds: Use ETag instead of problematic If-Modified-Since
Kim Alvefur <zash@zash.se>
parents: 2645
diff changeset
158 http.request(item.url, { headers = headers }, function(data, code, resp)
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
159 if code == 200 then
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
160 item.data = data;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
161 if callback then callback(item) end
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
162 item.last_update = time();
3047
7c55f05327a2 mod_pubsub_feeds: Use ETag instead of problematic If-Modified-Since
Kim Alvefur <zash@zash.se>
parents: 2645
diff changeset
163 if resp.headers then
7c55f05327a2 mod_pubsub_feeds: Use ETag instead of problematic If-Modified-Since
Kim Alvefur <zash@zash.se>
parents: 2645
diff changeset
164 item.etag = resp.headers.etag
7c55f05327a2 mod_pubsub_feeds: Use ETag instead of problematic If-Modified-Since
Kim Alvefur <zash@zash.se>
parents: 2645
diff changeset
165 end
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
166 elseif code == 304 then
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
167 item.last_update = time();
3279
e6b25054c110 mod_pubsub_feeds: Log a message for HTTP 301 redirects
Kim Alvefur <zash@zash.se>
parents: 3278
diff changeset
168 elseif code == 301 and resp.headers.location then
e6b25054c110 mod_pubsub_feeds: Log a message for HTTP 301 redirects
Kim Alvefur <zash@zash.se>
parents: 3278
diff changeset
169 module:log("info", "Feed %q has moved to %q", item.url, resp.headers.location);
3280
645c4f14e03d mod_pubsub_feeds: Fix syntax error
Kim Alvefur <zash@zash.se>
parents: 3279
diff changeset
170 elseif code <= 100 then
3278
958f0b8b502c mod_pubsub_feeds: Log non-HTTP errors like certificate problems etc
Kim Alvefur <zash@zash.se>
parents: 3277
diff changeset
171 module:log("error", "Error fetching %q: %q[%d]", item.url, data, code);
3277
78b11fb291a2 mod_pubsub_feeds: Log a debug message for status codes not handled
Kim Alvefur <zash@zash.se>
parents: 3242
diff changeset
172 else
78b11fb291a2 mod_pubsub_feeds: Log a debug message for status codes not handled
Kim Alvefur <zash@zash.se>
parents: 3242
diff changeset
173 module:log("debug", "Unhandled status code %d when fetching %q", code, item.url);
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
174 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
175 end);
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
176 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
177
1453
7b53cfc6ba8d mod_pubsub_feeds: Fix refresh_feeds() allways refreshing all feeds
Kim Alvefur <zash@zash.se>
parents: 1343
diff changeset
178 function refresh_feeds(now)
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
179 --module:log("debug", "Refreshing feeds");
2134
bd7744df0b4a mod_pubsub_feeds: Remove unused imports [luacheck]
Kim Alvefur <zash@zash.se>
parents: 2132
diff changeset
180 for _, item in pairs(feed_list) do
1453
7b53cfc6ba8d mod_pubsub_feeds: Fix refresh_feeds() allways refreshing all feeds
Kim Alvefur <zash@zash.se>
parents: 1343
diff changeset
181 if item.subscription ~= "subscribe" and item.last_update + refresh_interval < now then
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
182 --module:log("debug", "checking %s", item.node);
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
183 fetch(item, update_entry);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
184 end
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
185 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
186 return refresh_interval;
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
187 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
188
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
189 local function format_url(node)
2134
bd7744df0b4a mod_pubsub_feeds: Remove unused imports [luacheck]
Kim Alvefur <zash@zash.se>
parents: 2132
diff changeset
190 return module:http_url(nil, "/callback") .. "?" .. formencode({ node = node });
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
191 end
401
c85397063eca mod_pubsub_feed: Try harder to figure out ones callback URL.
Kim Alvefur <zash@zash.se>
parents: 400
diff changeset
192
718
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
193 function subscribe(feed, want)
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
194 want = want or "subscribe";
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
195 feed.secret = feed.secret or uuid();
403
fc62b26dfdf6 mod_pubsub_feed: Major cleanup, and use newer APIs. (Thanks Maranda)
Kim Alvefur <zash@zash.se>
parents: 402
diff changeset
196 local body = formencode{
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
197 ["hub.callback"] = format_url(feed.node);
718
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
198 ["hub.mode"] = want;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
199 ["hub.topic"] = feed.url;
1454
480c6f0576b1 mod_pubsub_feeds: Update to 0.4 version of PubSubHubbub
Kim Alvefur <zash@zash.se>
parents: 1453
diff changeset
200 ["hub.verify"] = "async"; -- COMPAT this is REQUIRED in the 0.3 draft but removed in 0.4
325
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
201 ["hub.secret"] = feed.secret;
2401
7a1625a84624 mod_pubsub_feeds: Ask for leases that expire after one day (Years after testing this module, I was still subscribed to a GNU Social instance)
Kim Alvefur <zash@zash.se>
parents: 2384
diff changeset
202 ["hub.lease_seconds"] = lease_length;
403
fc62b26dfdf6 mod_pubsub_feed: Major cleanup, and use newer APIs. (Thanks Maranda)
Kim Alvefur <zash@zash.se>
parents: 402
diff changeset
203 };
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
204
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
205 --module:log("debug", "subscription request, body: %s", body);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
206
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
207 --FIXME The subscription states and related stuff
718
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
208 feed.subscription = want;
983
ac9bf3fcbcfe mod_pubsub_feeds, mod_sms_clickatell, mod_twitter: Update for net.http API change in prosody:e3b9dc9dd940
Matthew Wild <mwild1@gmail.com>
parents: 797
diff changeset
209 http.request(feed.hub, { body = body }, function(data, code)
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
210 module:log("debug", "subscription to %s submitted, status %s", feed.node, tostring(code));
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
211 if code >= 400 then
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
212 module:log("error", "There was something wrong with our subscription request, body: %s", tostring(data));
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
213 feed.subscription = "failed";
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
214 end
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
215 end);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
216 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
217
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
218 function handle_http_request(event)
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
219 local request = event.request;
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
220 local method = request.method;
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
221 local body = request.body;
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
222
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
223 local query = request.url.query or {}; --FIXME
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
224 if query and type(query) == "string" then
403
fc62b26dfdf6 mod_pubsub_feed: Major cleanup, and use newer APIs. (Thanks Maranda)
Kim Alvefur <zash@zash.se>
parents: 402
diff changeset
225 query = formdecode(query);
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
226 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
227
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
228 local feed = feed_list[query.node];
718
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
229 if not feed then
2422
57235bce06fc mod_pubsub_feeds: Always approve unsubscription from unknown feeds
Kim Alvefur <zash@zash.se>
parents: 2421
diff changeset
230 if query["hub.mode"] == "unsubscribe" then
57235bce06fc mod_pubsub_feeds: Always approve unsubscription from unknown feeds
Kim Alvefur <zash@zash.se>
parents: 2421
diff changeset
231 -- Unsubscribe from unknown feed
57235bce06fc mod_pubsub_feeds: Always approve unsubscription from unknown feeds
Kim Alvefur <zash@zash.se>
parents: 2421
diff changeset
232 module:log("debug", "Unsubscribe from unknown feed %s -- %s", query["hub.topic"], formencode(query));
57235bce06fc mod_pubsub_feeds: Always approve unsubscription from unknown feeds
Kim Alvefur <zash@zash.se>
parents: 2421
diff changeset
233 return query["hub.challenge"];
57235bce06fc mod_pubsub_feeds: Always approve unsubscription from unknown feeds
Kim Alvefur <zash@zash.se>
parents: 2421
diff changeset
234 end
2421
a9add2d1adf5 mod_pubsub_feeds: Log pushes for unknown feeds to aid in manual unsubscription from them
Kim Alvefur <zash@zash.se>
parents: 2401
diff changeset
235 module:log("debug", "Push for unknown feed %s -- %s", query["hub.topic"], formencode(query));
718
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
236 return 404;
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
237 end
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
238
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
239 if method == "GET" then
718
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
240 if query.node then
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
241 if query["hub.topic"] ~= feed.url then
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
242 module:log("debug", "Invalid topic: %s", tostring(query["hub.topic"]))
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
243 return 404
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
244 end
1456
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
245 if query["hub.mode"] == "denied" then
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
246 module:log("info", "Subscription denied: %s", tostring(query["hub.reason"] or "No reason given"))
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
247 feed.subscription = "denied";
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
248 return "Ok then :(";
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
249 elseif query["hub.mode"] == feed.subscription then
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
250 module:log("debug", "Confirming %s request to %s", feed.subscription, feed.url)
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
251 else
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
252 module:log("debug", "Invalid mode: %s", tostring(query["hub.mode"]))
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
253 return 400
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
254 end
1454
480c6f0576b1 mod_pubsub_feeds: Update to 0.4 version of PubSubHubbub
Kim Alvefur <zash@zash.se>
parents: 1453
diff changeset
255 local lease_seconds = tonumber(query["hub.lease_seconds"]);
480c6f0576b1 mod_pubsub_feeds: Update to 0.4 version of PubSubHubbub
Kim Alvefur <zash@zash.se>
parents: 1453
diff changeset
256 if lease_seconds then
480c6f0576b1 mod_pubsub_feeds: Update to 0.4 version of PubSubHubbub
Kim Alvefur <zash@zash.se>
parents: 1453
diff changeset
257 feed.lease_expires = time() + lease_seconds - refresh_interval * 2;
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
258 end
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
259 return query["hub.challenge"];
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
260 end
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
261 return 400;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
262 elseif method == "POST" then
718
a37e4149ccd1 mod_pubsub_feeds: Prepare for making it possible to unsubscribe, and some other minor changes.
Kim Alvefur <zash@zash.se>
parents: 717
diff changeset
263 if #body > 0 then
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
264 module:log("debug", "got %d bytes PuSHed for %s", #body, query.node);
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
265 local signature = request.headers.x_hub_signature;
325
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
266 if feed.secret then
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
267 local localsig = "sha1=" .. hmac_sha1(feed.secret, body, true);
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
268 if localsig ~= signature then
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
269 module:log("debug", "Invalid signature, got %s but wanted %s", tostring(signature), tostring(localsig));
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
270 return 401;
325
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
271 end
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
272 module:log("debug", "Valid signature");
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
273 end
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
274 feed.data = body;
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
275 update_entry(feed);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
276 feed.last_update = time();
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
277 return 202;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
278 end
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
279 return 400;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
280 end
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
281 return 501;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
282 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
283
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
284 if use_pubsubhubub then
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
285 module:provides("http", {
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
286 default_path = "/callback";
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
287 route = {
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
288 GET = handle_http_request;
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
289 POST = handle_http_request;
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
290 -- This all?
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
291 };
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
292 });
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
293 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
294
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
295 module:add_timer(1, refresh_feeds);