# myapp.rb
require 'rubygems'
require 'sinatra'
require 'rdelicious'
get '/' do
erb :index
end
post '/' do
process_request
erb :index
end
helpers do
def process_request
# Verify twitter id is correct
if is_twitter_id?(params[:twitter_id]) or params[:twitter_public] == "yes"
@delicious = Rdelicious.new(params[:delicious_id], params[:delicious_password])
# Verify we can access delicious account
if @delicious.is_connected?
# Travelling around twitter timeline
if params[:twitter_public] == "yes"
# Read public timeline
twitter = read_public_twitter()
else
# Read user timeline
if params[:twitter_friends] == "include"
# Include friends
twitter = read_twitter(params[:twitter_id], true)
else
# Without friend network
twitter = read_twitter(params[:twitter_id])
end
end
twitter.each_element('//text') do |element|
description = element.text
# Scan for url in twitter status item
url = description.scan(/(http:\/\/.[^<\s$]*)/)[0].to_s
tags = description.scan(/\+.[^\s]*/).join(" ").delete('+')
# Verify url is not null and doesnt exists in delicious account
if !url.nil? and !url.empty? and !@delicious.url_exists?(url)
description.slice!(url) # Remove url from description
description.slice!(/\+.[^\s]*/) # Remove tags
description.slice!(/:\s*$/) # Remove trailing ":" used to send url in twitter
@delicious.add(url, description, tags)
end
end
else
error = "Please verify your Delicious information"
end
else
error = "Please verify your Twitter information"
end
return [@delicious, error]
end
###
# Twitter methods
###
# Return true if twitter_id exists
def is_twitter_id?(twitter_id)
resp = twitter_request(twitter_id)
# Response is not empty and doesn't contain 404 or "not found"
return (!resp.empty? and ((resp =~ /404/).nil? or (resp =~ /not found/).nil?))
end
# Return an array of last element of twitter_id timeline
def read_twitter(twitter_id, include_friends = false)
resp = twitter_request(twitter_id, include_friends)
begin
# XML Document
return REXML::Document.new(resp)
rescue REXML::ParseException => e
return false
end
end
# Return an array of last element of twitter public timeline
def read_public_twitter()
return read_twitter("public_timeline")
end
def twitter_request(twitter_id, include_friends = false)
if include_friends
request = "/statuses/friends_timeline/#{twitter_id}.xml"
else
request = "/statuses/user_timeline/#{twitter_id}.xml"
end
response = ""
begin
http = Net::HTTP.new("twitter.com")
http.start do |http|
req = Net::HTTP::Get.new(request, {"User-Agent" => "Twitticious"})
response = http.request(req).body
end
rescue SocketError
return false
end
return response
end
end
