Mercurial > prosody-modules

annotate mod_pubsub_feed/mod_pubsub_feed.lua @ 401:c85397063eca

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mod_pubsub_feed: Try harder to figure out ones callback URL.
author Kim Alvefur <zash@zash.se>
date Wed, 24 Aug 2011 15:03:38 +0200
parents f42fe4229f8a
children c92a37a72b25
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 -- Fetches Atom feeds and publishes to PubSub nodes
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2 --
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3 -- Depends: http://code.matthewwild.co.uk/lua-feeds
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4 --
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5 -- Config:
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6 -- Component "pubsub.example.com" "pubsub"
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7 -- modules_enabled = {
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8 -- "pubsub_feed";
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9 -- }
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10 -- feeds = { -- node -> url
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11 -- prosody_blog = "http://blog.prosody.im/feed/atom.xml";
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12 -- }
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13 -- feed_pull_interval = 20 -- minutes
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14 --
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15 -- Reference
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16 -- http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.3.html
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17
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18 local modules = hosts[module.host].modules;
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19 if not modules.pubsub then
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20 --FIXME Should this throw an error() instead?
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21 module:log("warn", "Pubsub needs to be loaded on this host");
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22 end
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23
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24
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25 local t_insert = table.insert;
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26 local add_task = require "util.timer".add_task;
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27 local date, time = os.date, os.time;
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28 local dt_parse, dt_datetime = require "util.datetime".parse, require "util.datetime".datetime;
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29 local http = require "net.http";
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30 local parse_feed = require "feeds".feed_from_string;
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31 local st = require "util.stanza";
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32 local httpserver = require "net.httpserver";
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33 local formencode = require "net.http".formencode;
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34 local dump = require "util.serialization".serialize;
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35 local uuid = require "util.uuid".generate;
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36 local hmac_sha1 = require "util.hmac".sha1;
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37
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38 local urldecode = require "net.http".urldecode;
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39 local urlencode = require "net.http".urlencode;
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40 local urlparams = --require "net.http".getQueryParams or whatever MattJ names it, FIXME
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41 function(s)
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42 if not s:match("=") then return urldecode(s); end
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43 local r = {}
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44 s:gsub("([^=&]*)=([^&]*)", function(k,v)
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45 r[ urldecode(k) ] = urldecode(v);
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46 return nil
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47 end)
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48 return r
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49 end;
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50
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51 local config = module:get_option("feeds") or {
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52 planet_jabber = "http://planet.jabber.org/atom.xml";
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53 prosody_blog = "http://blog.prosody.im/feed/atom.xml";
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54 };
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55 local refresh_interval = module:get_option_number("feed_pull_interval", 15) * 60;
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56 local use_pubsubhubub = module:get_option_boolean("use_pubsubhubub", true); -- HTTP by default or not?
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57 local http_hostname = module:get_option_string("pubsubhubub_httphost", module.host);
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58 local feed_list = { }
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59 for node, url in pairs(config) do
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60 feed_list[node] = { url = url; node = node; last_update = 0 };
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61 end
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62
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63 local ports = module:get_option("feeds_ports") or { 5280 };
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64 if not next(ports) then
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65 ports = { 5280 };
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66 end
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67 local port_number, base_name, secure;
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68 for _, opts in ipairs(ports) do
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69 if type(opts) == "number" then
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70 port_number, base_name = opts, "callback";
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71 elseif type(opts) == "table" then
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72 port_number, base_name, secure = opts.port or 5280, opts.path or "callback", opts.ssl or nil;
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73 elseif type(opts) == "string" then
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74 base_name, port_number = opts, 5280;
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75 end
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76 end
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77
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78 local response_codes = {
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79 ["200"] = "OK";
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80 ["202"] = "Accepted";
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81 ["400"] = "Bad Request";
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82 ["403"] = "Forbidden";
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83 ["404"] = "Not Found";
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84 ["501"] = "Not Implemented";
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85 };
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86
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87 local function http_response(code, headers, body)
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88 return {
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89 status = (type(code) == "number" and code .. " " .. response_codes[tostring(code)]) or code;
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90 headers = headers or {};
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91 body = body or "<h1>" .. response_codes[tostring(code)] .. "</h1>\n";
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92 };
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93 end
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94
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95 local actor = module.host.."/"..module.name;
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96
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97 function update_entry(item)
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98 local node = item.node;
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99 --module:log("debug", "parsing %d bytes of data in node %s", #item.data or 0, node)
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100 local feed = parse_feed(item.data);
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101 module:log("debug", "updating node %s", node);
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102 for _, entry in ipairs(feed) do
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103 entry.attr.xmlns = "http://www.w3.org/2005/Atom";
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104
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105 local e_published = entry:get_child("published");
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106 e_published = e_published and e_published:get_text();
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107 e_published = e_published and dt_parse(e_published);
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108 local e_updated = entry:get_child("updated");
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109 e_updated = e_updated and e_updated:get_text();
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110 e_updated = e_updated and dt_parse(e_updated);
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111
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112 local timestamp = e_updated or e_published or nil;
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113 --module:log("debug", "timestamp is %s, item.last_update is %s", tostring(timestamp), tostring(item.last_update));
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114 if not timestamp or not item.last_update or timestamp > item.last_update then
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115 local id = entry:get_child("id");
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116 id = id and id:get_text() or item.url.."#"..dt_datetime(timestamp); -- Missing id, so make one up
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117 local xitem = st.stanza("item", { id = id }):add_child(entry);
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118 -- TODO Put data from /feed into item/source
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119
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120 module:log("debug", "publishing to %s, id %s", node, id);
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121 local ok, err = modules.pubsub.service:publish(node, actor, id, xitem);
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122 if not ok then
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123 if err == "item-not-found" then -- try again
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124 module:log("debug", "got item-not-found, creating %s and trying again", node);
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125 local ok, err = modules.pubsub.service:create(node, actor);
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diff changeset
126 if not ok then
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diff changeset
127 module:log("error", "could not create node %s: %s", node, err);
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diff changeset
128 return;
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diff changeset
129 end
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diff changeset
130 local ok, err = modules.pubsub.service:publish(node, actor, id, xitem);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
131 if not ok then
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parents: 300
diff changeset
132 module:log("error", "could not create or publish node %s: %s", node, err);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
133 return
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
134 end
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diff changeset
135 else
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136 module:log("error", "publishing %s failed: %s", node, err);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
137 end
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Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
138 end
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Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
139 end
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Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
140 end
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141
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142 if use_pubsubhubub and not item.subscription then
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parents: 300
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143 module:log("debug", "check if %s has a hub", item.node);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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diff changeset
144 local hub = feed.links and feed.links.hub;
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diff changeset
145 if hub then
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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diff changeset
146 item.hub = hub;
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147 module:log("debug", "%s has a hub: %s", item.node, item.hub);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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148 subscribe(item);
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149 end
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Kim Alvefur <zash@zash.se>
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diff changeset
150 end
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Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
151 end
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parents: 300
diff changeset
152
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diff changeset
153 function fetch(item, callback) -- HTTP Pull
278
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Kim Alvefur <zash@zash.se>
parents:
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154 local headers = { };
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
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parents:
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155 if item.data and item.last_update then
400
f42fe4229f8a mod_pubsub_feed: Fix timestamp on Windows, which has no %T
Kim Alvefur <zash@zash.se>
parents: 325
diff changeset
156 headers["If-Modified-Since"] = date("!%a, %d %b %Y %H:%M:%S %Z", item.last_update);
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parents: 325
diff changeset
157 --COMPAT We could have saved 6 bytes here, but Microsoft apparently hates %T, so you got this gigantic comment instead.
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
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parents:
diff changeset
158 end
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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159 http.request(item.url, { headers = headers }, function(data, code, req)
278
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parents:
diff changeset
160 if code == 200 then
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
161 item.data = data;
322
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diff changeset
162 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
163 item.last_update = time();
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
164 end
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parents:
diff changeset
165 if code == 304 then
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parents:
diff changeset
166 item.last_update = time();
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
167 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
168 end);
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
169 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
170
322
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diff changeset
171 function refresh_feeds()
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diff changeset
172 --module:log("debug", "Refreshing feeds");
278
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parents:
diff changeset
173 for node, item in pairs(feed_list) do
322
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diff changeset
174 --FIXME Don't fetch feeds which have a subscription
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
175 -- Otoho, what if the subscription expires or breaks?
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
176 if item.last_update + refresh_interval < time() then
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
177 module:log("debug", "checking %s", item.node);
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parents: 300
diff changeset
178 fetch(item, update_entry);
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parents: 300
diff changeset
179 end
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
180 end
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
Kim Alvefur <zash@zash.se>
parents:
diff changeset
181 return refresh_interval;
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
401
c85397063eca mod_pubsub_feed: Try harder to figure out ones callback URL.
Kim Alvefur <zash@zash.se>
parents: 400
diff changeset
184 local function format_url(secure, host, port, path, node)
c85397063eca mod_pubsub_feed: Try harder to figure out ones callback URL.
Kim Alvefur <zash@zash.se>
parents: 400
diff changeset
185 return ("%s://%s:%d/%s?node=%s"):format(secure and "https" or "http", host, port, path, urlencode(node));
c85397063eca mod_pubsub_feed: Try harder to figure out ones callback URL.
Kim Alvefur <zash@zash.se>
parents: 400
diff changeset
186 end
c85397063eca mod_pubsub_feed: Try harder to figure out ones callback URL.
Kim Alvefur <zash@zash.se>
parents: 400
diff changeset
187
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
188 function subscribe(feed)
324
100b3ad2e10c mod_pubsub_feed: Fix verify_token checking.
Kim Alvefur <zash@zash.se>
parents: 323
diff changeset
189 feed.token = uuid();
325
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Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
190 feed.secret = uuid();
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
191 local _body, body = {
401
c85397063eca mod_pubsub_feed: Try harder to figure out ones callback URL.
Kim Alvefur <zash@zash.se>
parents: 400
diff changeset
192 ["hub.callback"] = format_url(secure, http_hostname, port_number, base_name, feed.node);
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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diff changeset
193 ["hub.mode"] = "subscribe"; --TODO unsubscribe
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parents: 300
diff changeset
194 ["hub.topic"] = feed.url;
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
195 ["hub.verify"] = "async";
324
100b3ad2e10c mod_pubsub_feed: Fix verify_token checking.
Kim Alvefur <zash@zash.se>
parents: 323
diff changeset
196 ["hub.verify_token"] = feed.token;
325
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
197 ["hub.secret"] = feed.secret;
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
198 --["hub.lease_seconds"] = "";
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
199 }, { };
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
200 for name, value in pairs(_body) do
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
201 t_insert(body, { name = name, value = value });
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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parents: 300
diff changeset
202 end --FIXME Why do I have to do this?
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
203 body = formencode(body);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
204
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
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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
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
208 feed.subscription = "subscribe";
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
209 http.request(feed.hub, { body = body }, function(data, code, req)
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
210 local code = tostring(code);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
211 module:log("debug", "subscription to %s submitted, staus %s", feed.node, code);
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
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
215 function handle_http_request(method, body, request)
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
216 --module:log("debug", "%s request to %s%s with body %s", method, request.url.path, request.url.query and "?" .. request.url.query or "", #body > 0 and body or "empty");
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
217 local query = request.url.query;
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
218 if query and type(query) == "string" then
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
219 query = urlparams(query);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
220 --module:log("debug", "GET data: %s", dump(query));
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
221 end
325
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
222 --module:log("debug", "Headers: %s", dump(request.headers));
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
223
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
224 if method == "GET" then
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
225 if query.node and feed_list[query.node] then
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
226 local feed = feed_list[query.node];
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
227 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
228 module:log("debug", "Invalid topic: %s", tostring(query["hub.topic"]))
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
229 return http_response(404)
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
230 end
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
231 if query["hub.mode"] ~= feed.subscription then
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
232 module:log("debug", "Invalid mode: %s", tostring(query["hub.mode"]))
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
233 return http_response(400)
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
234 -- Would this work for unsubscribe?
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
235 -- Also, if feed.subscription is changed here,
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
236 -- it would probably invalidate the subscription
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
237 -- when/if the hub asks if it should be renewed
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
238 end
324
100b3ad2e10c mod_pubsub_feed: Fix verify_token checking.
Kim Alvefur <zash@zash.se>
parents: 323
diff changeset
239 if query["hub.verify_token"] ~= feed.token then
100b3ad2e10c mod_pubsub_feed: Fix verify_token checking.
Kim Alvefur <zash@zash.se>
parents: 323
diff changeset
240 module:log("debug", "Invalid verify_token: %s", tostring(query["hub.verify_token"]))
100b3ad2e10c mod_pubsub_feed: Fix verify_token checking.
Kim Alvefur <zash@zash.se>
parents: 323
diff changeset
241 return http_response(403)
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
242 end
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
243 module:log("debug", "Confirming %s request to %s", feed.subscription, feed.url)
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
244 return http_response(200, nil, query["hub.challenge"])
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
245 end
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
246 return http_response(400);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
247 elseif method == "POST" then
323
433bf7dc3e7a mod_pubsub_feed: Stricter verification handling. Correctly echo the hubs challenge.
Kim Alvefur <zash@zash.se>
parents: 322
diff changeset
248 -- TODO http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.3.html#authednotify
322
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
249 if #body > 0 and feed_list[query.node] then
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
250 module:log("debug", "got %d bytes PuSHed for %s", #body, query.node);
637dc0a04052 mod_pubsub_feed: Implement PubSubHubbub subscriber
Kim Alvefur <zash@zash.se>
parents: 300
diff changeset
251 local feed = feed_list[query.node];
325
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
252 local signature = request.headers["x-hub-signature"];
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
253 if feed.secret then
4e50e591a7fc mod_pubsub_feed: Implement signature verification
Kim Alvefur <zash@zash.se>
parents: 324
diff changeset
254 local localsig = "sha1=" .. hmac_sha1(feed.secret, body, true);
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255 if localsig ~= signature then
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256 module:log("debug", "Invalid signature");
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257 return http_response(403);
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258 end
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259 module:log("debug", "Valid signature");
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260 end
322
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261 feed.data = body;
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262 update_entry(feed);
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263 feed.last_update = time();
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264 return http_response(202);
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265 end
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266 return http_response(400);
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267 end
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268 return http_response(501);
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parents: 300
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269 end
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parents: 300
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270
278
653c1826739e mod_pubsub_feed: Fetches Atom feeds and publishes to PubSub
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parents:
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271 function init()
322
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272 module:log("debug", "initiating", module.name);
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parents: 300
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273 if use_pubsubhubub then
401
c85397063eca mod_pubsub_feed: Try harder to figure out ones callback URL.
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parents: 400
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274 httpserver.new{ port = port_number, base = base_name, handler = handle_http_request }
322
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parents: 300
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275 end
278
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parents:
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276 add_task(0, refresh_feeds);
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parents:
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277 end
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parents:
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278
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parents:
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279 if prosody.start_time then -- already started
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parents:
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280 init();
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parents:
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281 else
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parents:
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282 prosody.events.add_handler("server-started", init);
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parents:
diff changeset
283 end