Mercurial > prosody-modules

annotate mod_pubsub_feeds/mod_pubsub_feeds.lua @ 4776:13e913471b75

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mod_http_admin_api: Ensure freshness of metrics when in manual mode When in manual collection mode, as recommended for Prometheus, collection needs to be triggered manually, or they would be stale, possibly dating from the start of the server. This might vary per metric depending on how and when the metrics are gathered.
author Kim Alvefur <zash@zash.se>
date Thu, 18 Nov 2021 19:26:07 +0100
parents 281a864e7472
children 68bd8ae9b827
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 -- }
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
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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 -- }
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
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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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27
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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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43
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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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47
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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
475
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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
475
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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
475
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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)
3281
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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
2379
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87 local entries = {};
2132
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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);
2382
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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 = {};
2382
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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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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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parents: 402
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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");
2380
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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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115 id = link and link.attr.href;
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116 end
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diff changeset
117 if not id then
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
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
4282
281a864e7472 mod_pubsub_feeds: Don't skip publishing items after an existing one
Kim Alvefur <zash@zash.se>
parents: 3281
diff changeset
121 if not items[id] then
281a864e7472 mod_pubsub_feeds: Don't skip publishing items after an existing one
Kim Alvefur <zash@zash.se>
parents: 3281
diff changeset
122 local xitem = st.stanza("item", { id = id, xmlns = "http://jabber.org/protocol/pubsub" }):add_child(entry);
281a864e7472 mod_pubsub_feeds: Don't skip publishing items after an existing one
Kim Alvefur <zash@zash.se>
parents: 3281
diff changeset
123 -- TODO Put data from /feed into item/source
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
124
4282
281a864e7472 mod_pubsub_feeds: Don't skip publishing items after an existing one
Kim Alvefur <zash@zash.se>
parents: 3281
diff changeset
125 --module:log("debug", "publishing to %s, id %s", node, id);
281a864e7472 mod_pubsub_feeds: Don't skip publishing items after an existing one
Kim Alvefur <zash@zash.se>
parents: 3281
diff changeset
126 local ok, err = pubsub.service:publish(node, true, id, xitem);
281a864e7472 mod_pubsub_feeds: Don't skip publishing items after an existing one
Kim Alvefur <zash@zash.se>
parents: 3281
diff changeset
127 if not ok then
281a864e7472 mod_pubsub_feeds: Don't skip publishing items after an existing one
Kim Alvefur <zash@zash.se>
parents: 3281
diff changeset
128 module:log("error", "Publishing to node %s failed: %s", node, err);
281a864e7472 mod_pubsub_feeds: Don't skip publishing items after an existing one
Kim Alvefur <zash@zash.se>
parents: 3281
diff changeset
129 end
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
130 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
131 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
132 end
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 1325
diff changeset
133
1457
720ff25d94e6 mod_pubsub_feeds: Check that lease time exists before comparing
Kim Alvefur <zash@zash.se>
parents: 1456
diff changeset
134 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
135 item.subscription = nil;
13e359c48b5b mod_pubsub_feeds: Fix refreshing of subscriptions
Kim Alvefur <zash@zash.se>
parents: 1454
diff changeset
136 item.lease_expires = nil;
13e359c48b5b mod_pubsub_feeds: Fix refreshing of subscriptions
Kim Alvefur <zash@zash.se>
parents: 1454
diff changeset
137 end
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
138 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
139 --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
140 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
141 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
142 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
143 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
144 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
145 end
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
146 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
147 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
148 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
149
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
150 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
151 local headers = { };
3047
7c55f05327a2 mod_pubsub_feeds: Use ETag instead of problematic If-Modified-Since
Kim Alvefur <zash@zash.se>
parents: 2645
diff changeset
152 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
153 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
154 end
3047
7c55f05327a2 mod_pubsub_feeds: Use ETag instead of problematic If-Modified-Since
Kim Alvefur <zash@zash.se>
parents: 2645
diff changeset
155 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
156 if code == 200 then
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
157 item.data = data;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
158 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
159 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
160 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
161 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
162 end
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
163 elseif code == 304 then
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
164 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
165 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
166 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
167 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
168 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
169 else
78b11fb291a2 mod_pubsub_feeds: Log a debug message for status codes not handled
Kim Alvefur <zash@zash.se>
parents: 3242
diff changeset
170 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
171 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
172 end);
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
173 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
174
1453
7b53cfc6ba8d mod_pubsub_feeds: Fix refresh_feeds() allways refreshing all feeds
Kim Alvefur <zash@zash.se>
parents: 1343
diff changeset
175 function refresh_feeds(now)
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
176 --module:log("debug", "Refreshing feeds");
2134
bd7744df0b4a mod_pubsub_feeds: Remove unused imports [luacheck]
Kim Alvefur <zash@zash.se>
parents: 2132
diff changeset
177 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
178 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
179 --module:log("debug", "checking %s", item.node);
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
180 fetch(item, update_entry);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
181 end
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
182 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
183 return refresh_interval;
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
184 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
185
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
186 local function format_url(node)
2134
bd7744df0b4a mod_pubsub_feeds: Remove unused imports [luacheck]
Kim Alvefur <zash@zash.se>
parents: 2132
diff changeset
187 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
188 end
401
c85397063eca mod_pubsub_feed: Try harder to figure out ones callback URL.
Kim Alvefur <zash@zash.se>
parents: 400
diff changeset
189
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
190 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
191 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
192 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
193 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
194 ["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
195 ["hub.mode"] = want;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
196 ["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
197 ["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
198 ["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
199 ["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
200 };
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
201
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
202 --module:log("debug", "subscription request, body: %s", body);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
203
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
204 --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
205 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
206 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
207 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
208 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
209 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
210 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
211 end
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
212 end);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
213 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
214
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
215 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
216 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
217 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
218 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
219
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
220 local query = request.url.query or {}; --FIXME
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
221 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
222 query = formdecode(query);
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
223 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
224
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
225 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
226 if not feed then
2422
57235bce06fc mod_pubsub_feeds: Always approve unsubscription from unknown feeds
Kim Alvefur <zash@zash.se>
parents: 2421
diff changeset
227 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
228 -- Unsubscribe from unknown feed
57235bce06fc mod_pubsub_feeds: Always approve unsubscription from unknown feeds
Kim Alvefur <zash@zash.se>
parents: 2421
diff changeset
229 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
230 return query["hub.challenge"];
57235bce06fc mod_pubsub_feeds: Always approve unsubscription from unknown feeds
Kim Alvefur <zash@zash.se>
parents: 2421
diff changeset
231 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
232 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
233 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
234 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
235
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
236 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
237 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
238 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
239 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
240 return 404
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
241 end
1456
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
242 if query["hub.mode"] == "denied" then
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
243 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
244 feed.subscription = "denied";
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
245 return "Ok then :(";
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
246 elseif query["hub.mode"] == feed.subscription then
2cd667d8edbd mod_pubsub_feeds: Handle denied subscription requests
Kim Alvefur <zash@zash.se>
parents: 1455
diff changeset
247 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
248 else
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
249 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
250 return 400
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
251 end
1454
480c6f0576b1 mod_pubsub_feeds: Update to 0.4 version of PubSubHubbub
Kim Alvefur <zash@zash.se>
parents: 1453
diff changeset
252 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
253 if lease_seconds then
480c6f0576b1 mod_pubsub_feeds: Update to 0.4 version of PubSubHubbub
Kim Alvefur <zash@zash.se>
parents: 1453
diff changeset
254 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
255 end
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
256 return query["hub.challenge"];
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
257 end
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
258 return 400;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
259 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
260 if #body > 0 then
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
261 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
262 local signature = request.headers.x_hub_signature;
325
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
263 if feed.secret then
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
264 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
265 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
266 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
267 return 401;
325
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
268 end
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
269 module:log("debug", "Valid signature");
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
270 end
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
271 feed.data = body;
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
272 update_entry(feed);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
273 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
274 return 202;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
275 end
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
276 return 400;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
277 end
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
278 return 501;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
279 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
280
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
281 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
282 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
283 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
284 route = {
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
285 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
286 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
287 -- This all?
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
288 };
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
289 });
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
290 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
291
668
343b115ebbea mod_pubsub_feed: Cleanup and update to new APIs in 0.9
Kim Alvefur <zash@zash.se>
parents: 633
diff changeset
292 module:add_timer(1, refresh_feeds);