Mercurial > prosody-modules
view mod_pubsub_twitter/mod_pubsub_twitter.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 |
parents | 7dbde05b48a9 |
children |
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-- Publishes Twitter search results over pubsub -- -- Config: -- Component "pubsub.example.com" "pubsub" -- modules_enabled = { -- "pubsub_twitter"; -- } -- twitter_searches = { -- node -> query -- prosody = "prosody xmpp"; -- } -- twitter_pull_interval = 20 -- minutes -- local pubsub = module:depends"pubsub"; local json = require "util.json"; local http = require "net.http"; local set = require "util.set"; local it = require "util.iterators"; local array = require "util.array"; local st = require "util.stanza"; --local dump = require"util.serialization".serialize; local xmlns_atom = "http://www.w3.org/2005/Atom"; local twitter_searches = module:get_option("twitter_searches", {}); local refresh_interval = module:get_option_number("twitter_pull_interval", 20) * 60; local api_url = module:get_option_string("twitter_search_url", "http://search.twitter.com/search.json"); local month_number = { Jan = "01", Feb = "02", Mar = "03"; Apr = "04", May = "05", Jun = "06"; Jul = "07", Aug = "08", Sep = "09"; Oct = "10", Nov = "11", Dec = "12"; }; local active_searches = {}; local function publish_result(search_name, result) local node, id = search_name, result.id_str; --"Tue, 02 Apr 2013 15:40:54 +0000" local timestamp_date, timestamp_month, timestamp_year, timestamp_time = result.created_at:match(" (%d+) (%a+) (%d+) (%d%d:%d%d:%d%d)"); local timestamp = ("%s-%s-%sT%sZ"):format(timestamp_year, month_number[timestamp_month], timestamp_date, timestamp_time); local item = st.stanza("item", { xmlns = "http://jabber.org/protocol/pubsub", id = id }) :tag("entry", { xmlns = xmlns_atom }) :tag("id"):text(id):up() :tag("author") :tag("name"):text(result.from_user_name.." (@"..result.from_user..")"):up() :tag("uri"):text("http://twitter.com/"..result.from_user):up() :up() :tag("published"):text(timestamp):up() :tag("title"):text(result.text):up() :tag("link", { rel = "alternate" , href = "https://twitter.com/"..result.from_user.."/status/"..id}):up(); module:log("debug", "Publishing Twitter result: %s", tostring(item)); local ok, err = pubsub.service:publish(node, true, id, item); if not ok then if err == "item-not-found" then -- try again local ok, err = pubsub.service:create(node, true); if not ok then module:log("error", "could not create node %s: %s", node, err); return; end local ok, err = pubsub.service:publish(node, true, id, item); if not ok then module:log("error", "could not create or publish node %s: %s", node, err); return end else module:log("error", "publishing %s failed: %s", node, err); end end end local function is_retweet(tweet) return not not tweet.text:match("^RT "); end function update_all() module:log("debug", "Updating all searches"); for name, search in pairs(active_searches) do module:log("debug", "Fetching new results for '%s'", name); http.request(search.refresh_url or search.url, nil, function (result_json, code) if code ~= 200 then module:log("warn", "Twitter search query '%s' failed with code %d", name, code); return; end local response = json.decode(result_json); module:log("debug", "Processing %d results for %s", #response.results, name); search.refresh_url = api_url..response.refresh_url; for _, result in ipairs(response.results) do if not is_retweet(result) then publish_result(name, result); end end end); end return refresh_interval; end function module.load() local config_searches = set.new(array.collect(it.keys(twitter_searches))); local current_searches = set.new(array.collect(it.keys(active_searches))); local disable_searches = current_searches - config_searches; local new_searches = config_searches - current_searches; for search_name in disable_searches do module:log("debug", "Disabled old Twitter search '%s'", search_name); active_searches[search_name] = nil; end for search_name in new_searches do module:log("debug", "Created new Twitter search '%s'", search_name); local query = twitter_searches[search_name]; active_searches[search_name] = { url = api_url.."?q="..http.urlencode(query); }; end end module:add_timer(5, update_all);