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mod_pubsub_hub/mod_pubsub_hub.lua @ 5119:048e339706ba

mod_rest: Remove manual reference expansion in schema This hack was originally added to reduce the number of definitions of common attributes (type, to, from etc) and payloads (e.g. delay). This predated pointers and references, and until now was needed because parsing picked out the correct stanza kind from the schema, which broke internal references. Removing this hack paves the way for allowing the schema to be configured or customized more easily.

author	Kim Alvefur <zash@zash.se>
date	Tue, 20 Dec 2022 21:48:28 +0100
parent	3021:4cec8b7aed6d

rev	line source
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	1 -- Copyright (C) 2011 - 2012 Kim Alvefur
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	2 --
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	3 -- This file is MIT/X11 licensed.
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	4
1325 b21236b6b8d8 Backed out changeset 853a382c9bd6 Kim Alvefur <zash@zash.se> parents: 1324 diff changeset	5 local http = require "net.http";
b21236b6b8d8 Backed out changeset 853a382c9bd6 Kim Alvefur <zash@zash.se> parents: 1324 diff changeset	6 local formdecode = http.formdecode;
b21236b6b8d8 Backed out changeset 853a382c9bd6 Kim Alvefur <zash@zash.se> parents: 1324 diff changeset	7 local formencode = http.formencode;
1458 e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	8 local http_request = http.request;
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	9 local uuid = require "util.uuid".generate;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	10 local hmac_sha1 = require "util.hmac".sha1;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	11 local json_encode = require "util.json".encode;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	12 local time = os.time;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	13 local m_min, m_max = math.min, math.max;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	14 local tostring = tostring;
1458 e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	15
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	16 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	17 local xmlns_pubsub_event = xmlns_pubsub .. "#event";
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	18 local subs_by_topic = module:shared"subscriptions";
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	19
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	20 local max_lease, min_lease, default_lease = 86400, 600, 3600;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	21
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	22 module:depends"pubsub";
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	23
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	24 local valid_modes = { ["subscribe"] = true, ["unsubscribe"] = true, }
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	25
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	26 local function do_subscribe(subscription)
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	27 -- FIXME handle other states
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	28 if subscription.state == "subscribed" then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	29 local ok, err = hosts[module.host].modules.pubsub.service:add_subscription(subscription.topic, true, module.host);
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	30 module:log(ok and "debug" or "error", "add_subscription() => %s, %s", tostring(ok), tostring(err));
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	31 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	32 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	33
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	34 local function handle_request(event)
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	35 local request, response = event.request, event.response;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	36 local method, body = request.method, request.body;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	37
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	38 local query = request.url.query or {};
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	39 if query and type(query) == "string" then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	40 query = formdecode(query);
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	41 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	42 if body and request.headers.content_type == "application/x-www-form-urlencoded" then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	43 body = formdecode(body);
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	44 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	45
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	46 if method == "POST" then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	47 -- Subscription request
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	48 if body["hub.callback"] and body["hub.mode"] and valid_modes[body["hub.mode"]]
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	49 and body["hub.topic"] and body["hub.verify"] then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	50
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	51 -- http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.3.html#anchor5
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	52 local callback = body["hub.callback"];
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	53 local mode = body["hub.mode"];
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	54 local topic = body["hub.topic"];
767 e5667f1da6bf mod_pubsub_hub: Enforce minimal lease time Kim Alvefur <zash@zash.se> parents: 766 diff changeset	55 local lease_seconds = m_max(min_lease, m_min(tonumber(body["hub.lease_seconds"]) or default_lease, max_lease));
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	56 local secret = body["hub.secret"];
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	57 local verify_token = body["hub.verify_token"];
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	58
1458 e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	59 module:log("debug", "topic is "..(type(topic)=="string" and "%q" or "%s"), tostring(topic));
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	60
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	61 if not subs_by_topic[topic] then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	62 subs_by_topic[topic] = {};
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	63 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	64 local subscription = subs_by_topic[topic][callback];
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	65
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	66 local verify_modes = {};
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	67 for i=1,#body do
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	68 if body[i].name == "hub.verify" then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	69 verify_modes[body[i].value] = true;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	70 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	71 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	72
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	73 subscription = subscription or {
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	74 id = uuid(),
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	75 callback = callback,
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	76 topic = topic,
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	77 state = "unsubscribed",
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	78 secret = secret,
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	79 want_state = mode,
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	80 };
1458 e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	81 subscription.lease_seconds = lease_seconds;
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	82 subscription.expires = time() + lease_seconds;
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	83 subs_by_topic[topic][callback] = subscription;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	84 local challenge = uuid();
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	85
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	86 local callback_url = callback .. (callback:match("%?") and "&" or "?") .. formencode{
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	87 ["hub.mode"] = mode,
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	88 ["hub.topic"] = topic,
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	89 ["hub.challenge"] = challenge,
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	90 ["hub.lease_seconds"] = tostring(lease_seconds),
1458 e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	91 ["hub.verify_token"] = verify_token, -- COMPAT draft version 0.3
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	92 }
1458 e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	93 module:log("debug", "Sending async verification request to %s for %s", tostring(callback_url), tostring(subscription));
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	94 http_request(callback_url, nil, function(body, code)
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	95 if body == challenge and code > 199 and code < 300 then
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	96 if not subscription.want_state then
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	97 module:log("warn", "Verification of already verified request, probably");
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	98 return;
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	99 end
1458 e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	100 subscription.state = subscription.want_state .. "d";
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	101 subscription.want_state = nil;
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	102 module:log("debug", "calling do_subscribe()");
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	103 do_subscribe(subscription);
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	104 subs_by_topic[topic][callback] = subscription;
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	105 else
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	106 module:log("warn", "status %d and body was %q", tostring(code), tostring(body));
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	107 subs_by_topic[topic][callback] = subscription;
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	108 end
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	109 end)
e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	110 return 202;
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	111 else
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	112 response.status = 400;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	113 response.headers.content_type = "text/html";
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	114 return "<h1>Bad Request</h1>\n<a href='http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.3.html#anchor5'>Missing required parameter(s)</a>\n"
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	115 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	116 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	117 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	118
1458 e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	119 local function periodic(now)
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	120 local next_check = now + max_lease;
766 1184fe8ebb21 mod_pubsub_hub: Try to choose time until the next periodic check in a sane way Kim Alvefur <zash@zash.se> parents: 764 diff changeset	121 local purge = false;
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	122 for topic, callbacks in pairs(subs_by_topic) do
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	123 for callback, subscription in pairs(callbacks) do
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	124 if subscription.mode == "subscribed" then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	125 if subscription.expires < now then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	126 -- Subscription has expired, drop it.
766 1184fe8ebb21 mod_pubsub_hub: Try to choose time until the next periodic check in a sane way Kim Alvefur <zash@zash.se> parents: 764 diff changeset	127 purge = true;
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	128 else
766 1184fe8ebb21 mod_pubsub_hub: Try to choose time until the next periodic check in a sane way Kim Alvefur <zash@zash.se> parents: 764 diff changeset	129 next_check = m_min(next_check, subscription.expires);
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	130 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	131 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	132 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	133 if purge then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	134 local new_callbacks = {};
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	135 for callback, subscription in pairs(callbacks) do
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	136 if (subscription.state == "subscribed" and subscription.expires < now)
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	137 and subscription.want_state ~= "remove" then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	138 new_callbacks[callback] = subscription;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	139 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	140 end
766 1184fe8ebb21 mod_pubsub_hub: Try to choose time until the next periodic check in a sane way Kim Alvefur <zash@zash.se> parents: 764 diff changeset	141 subs_by_topic[topic] = new_callbacks;
1184fe8ebb21 mod_pubsub_hub: Try to choose time until the next periodic check in a sane way Kim Alvefur <zash@zash.se> parents: 764 diff changeset	142 purge = false;
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	143 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	144 end
785 e781e63a49f4 mod_pubsub_hub: Fix calculating next periodic check of subscriptions. Kim Alvefur <zash@zash.se> parents: 767 diff changeset	145 return m_max((now - next_check) - min_lease, min_lease);
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	146 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	147
801 133ee88d19ae mod_pubsub_hub: Add compat wrapping of Atom content for interop with PuSH Kim Alvefur <zash@zash.se> parents: 785 diff changeset	148 local xmlns_atom = "http://www.w3.org/2005/Atom";
133ee88d19ae mod_pubsub_hub: Add compat wrapping of Atom content for interop with PuSH Kim Alvefur <zash@zash.se> parents: 785 diff changeset	149 local st = require "util.stanza";
133ee88d19ae mod_pubsub_hub: Add compat wrapping of Atom content for interop with PuSH Kim Alvefur <zash@zash.se> parents: 785 diff changeset	150
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	151 local function on_notify(subscription, content)
801 133ee88d19ae mod_pubsub_hub: Add compat wrapping of Atom content for interop with PuSH Kim Alvefur <zash@zash.se> parents: 785 diff changeset	152 if content.attr and content.attr.xmlns == xmlns_atom then
133ee88d19ae mod_pubsub_hub: Add compat wrapping of Atom content for interop with PuSH Kim Alvefur <zash@zash.se> parents: 785 diff changeset	153 -- COMPAT This is required by the PubSubHubbub spec.
133ee88d19ae mod_pubsub_hub: Add compat wrapping of Atom content for interop with PuSH Kim Alvefur <zash@zash.se> parents: 785 diff changeset	154 content = st.stanza("feed", {xmlns=xmlns_atom}):add_child(content);
133ee88d19ae mod_pubsub_hub: Add compat wrapping of Atom content for interop with PuSH Kim Alvefur <zash@zash.se> parents: 785 diff changeset	155 end
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	156 local body = tostring(content);
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	157 local headers = {
3021 4cec8b7aed6d mod_pubsub_hub: Use the correct MIME type for Atom feeds Kim Alvefur <zash@zash.se> parents: 1458 diff changeset	158 ["Content-Type"] = "application/atom+xml",
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	159 };
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	160 if subscription.secret then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	161 headers["X-Hub-Signature"] = "sha1="..hmac_sha1(subscription.secret, body, true);
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	162 end
1458 e9d164e694e7 mod_pubsub_hub: Update to PubSubHubbub version 0.4 Kim Alvefur <zash@zash.se> parents: 1325 diff changeset	163 http_request(subscription.callback, { method = "POST", body = body, headers = headers }, function(body, code)
764 d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	164 if code >= 200 and code <= 299 then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	165 module:log("debug", "Delivered");
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	166 else
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	167 module:log("warn", "Got status code %d on delivery to %s", tonumber(code) or -1, tostring(subscription.callback));
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	168 -- TODO Retry
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	169 -- ... but the spec says that you should not retry, wtf?
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	170 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	171 end);
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	172 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	173
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	174 module:hook("message/host", function(event)
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	175 local stanza = event.stanza;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	176 if stanza.attr.from ~= module.host then return end;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	177
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	178 for pubsub_event in stanza:childtags("event", xmlns_pubsub_event) do
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	179 local items = pubsub_event:get_child("items");
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	180 local node = items.attr.node;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	181 if items and node and subs_by_topic[node] then
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	182 for item in items:childtags("item") do
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	183 local content = item.tags[1];
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	184 for callback, subscription in pairs(subs_by_topic[node]) do
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	185 on_notify(subscription, content)
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	186 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	187 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	188 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	189 end
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	190 return true;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	191 end, 10);
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	192
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	193 module:depends"http";
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	194 module:provides("http", {
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	195 default_path = "/hub";
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	196 route = {
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	197 POST = handle_request;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	198 GET = function()
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	199 return json_encode(subs_by_topic);
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	200 end;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	201 ["GET /topic/*"] = function(event, path)
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	202 return json_encode(subs_by_topic[path])
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	203 end;
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	204 };
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	205 });
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	206
d11d91ee81ed mod_pubsub_hub: New module that implements the Hub part of PubSubHubbub Kim Alvefur <zash@zash.se> parents: diff changeset	207 module:add_timer(1, periodic);

prosody-modules

048e339706ba

mod_pubsub_hub/mod_pubsub_hub.lua

Software / code / prosody-modules

Annotate

mod_pubsub_hub/mod_pubsub_hub.lua @ 5119:048e339706ba

Software `/` code `/` prosody-modules