102 lines
3.1 KiB
Ruby
102 lines
3.1 KiB
Ruby
class MessageHandler
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NUM_TRIES = 3
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TIMEOUT = 5 #seconds
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def initialize
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@queue = EM::Queue.new
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end
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def add_get_request(destinations)
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[*destinations].each{ |dest| @queue.push(Message.new(:get, dest))}
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end
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def add_subscription_request(feed_url)
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@queue.push(Message.new(:ostatus_subscribe, feed_url))
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end
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def add_post_request(destinations, body)
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b = CGI::escape( body )
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[*destinations].each{|dest| @queue.push(Message.new(:post, dest, :body => b))}
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end
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# pubsubhubbub
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def add_hub_notification(hub_url, feed_url)
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@queue.push(Message.new(:hub_publish, hub_url, :body => feed_url))
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end
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def add_hub_subscription_request(hub_url, feed_url)
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@queue.push(Message.new(:hub_subscribe, hub_url, :body => feed_url))
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end
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def add_hub_unsubscribe_request(hub, from, feed_url)
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@queue.push(Message.new(:hub_unsubscribe, hub, :body => feed_url, :owner_url => from))
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end
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def process_ostatus_subscription(query_object, http)
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hub = Diaspora::OStatusParser::find_hub(http.response)
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add_hub_subscription_request(hub, query_object.destination)
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Diaspora::OStatusParser::process(http.response)
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end
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def process
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@queue.pop{ |query|
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case query.type
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when :post
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http = EventMachine::HttpRequest.new(query.destination).post :timeout => TIMEOUT, :body =>{:xml => query.body}
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http.callback { puts query.destination; process; process}
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when :get
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http = EventMachine::HttpRequest.new(query.destination).get :timeout => TIMEOUT
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http.callback {send_to_seed(query, http.response); process}
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when :ostatus_subscribe
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puts query.destination
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http = EventMachine::HttpRequest.new(query.destination).get :timeout => TIMEOUT
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http.callback { process_ostatus_subscription(query, http); process}
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when :hub_publish
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http = EventMachine::PubSubHubbub.new(query.destination).publish query.body, :timeout => TIMEOUT
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http.callback { process}
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when :hub_subscribe
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http = EventMachine::PubSubHubbub.new(query.destination).subscribe query.body, User.owner.url + 'hubbub', :timeout => TIMEOUT
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http.callback { process}
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when :hub_unsubscribe
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http = EventMachine::PubSubHubbub.new(query.destination).unsubscribe query.body, query.owner_url, :timeout => TIMEOUT
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http.callback {process}
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else
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raise "message is not a type I know!"
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end
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http.errback {
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puts http.response
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puts "failure from #{query.destination}, retrying"
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query.try_count +=1
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@queue.push query unless query.try_count >= NUM_TRIES
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process
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}
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} unless @queue.size == 0
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end
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def send_to_seed(message, http_response)
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#DO SOMETHING!
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end
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def size
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@queue.size
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end
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class Message
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attr_accessor :type, :destination, :body, :callback, :owner_url, :try_count
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def initialize(type, dest, opts = {})
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@type = type
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@owner_url = opts[:owner_url]
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@destination = dest
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@body = opts[:body]
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@callback = opts[:callback] ||= lambda{ process; process }
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@try_count = 0
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end
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end
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end
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