alx / twitticious

Import links from a twitter timeline to your del.icio.us account.

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twitticious / twitticious.rb
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ae6328c6 » alx 2008-12-21 first commit 1 # myapp.rb
2 require 'rubygems'
3 require 'sinatra'
4 require 'rdelicious'
5
6 get '/' do
7 erb :index
8 end
9
10 post '/' do
11 process_request
12 erb :index
13 end
14
15 helpers do
16
17 def process_request
18
19 # Verify twitter id is correct
20 if is_twitter_id?(params[:twitter_id]) or params[:twitter_public] == "yes"
21 @delicious = Rdelicious.new(params[:delicious_id], params[:delicious_password])
22
23 # Verify we can access delicious account
24 if @delicious.is_connected?
25
26 # Travelling around twitter timeline
27 if params[:twitter_public] == "yes"
28 # Read public timeline
29 twitter = read_public_twitter()
30 else
31 # Read user timeline
32 if params[:twitter_friends] == "include"
33 # Include friends
34 twitter = read_twitter(params[:twitter_id], true)
35 else
36 # Without friend network
37 twitter = read_twitter(params[:twitter_id])
38 end
39 end
40
41 twitter.each_element('//text') do |element|
42 description = element.text
43 # Scan for url in twitter status item
44 url = description.scan(/(http:\/\/.[^<\s$]*)/)[0].to_s
45 tags = description.scan(/\+.[^\s]*/).join(" ").delete('+')
46 # Verify url is not null and doesnt exists in delicious account
47 if !url.nil? and !url.empty? and !@delicious.url_exists?(url)
48 description.slice!(url) # Remove url from description
49 description.slice!(/\+.[^\s]*/) # Remove tags
50 description.slice!(/:\s*$/) # Remove trailing ":" used to send url in twitter
51 @delicious.add(url, description, tags)
52 end
53 end
54 else
55 error = "Please verify your Delicious information"
56 end
57 else
58 error = "Please verify your Twitter information"
59 end
60
61 return [@delicious, error]
62 end
63
64 ###
65 # Twitter methods
66 ###
67
68 # Return true if twitter_id exists
69 def is_twitter_id?(twitter_id)
70 resp = twitter_request(twitter_id)
71 # Response is not empty and doesn't contain 404 or "not found"
72 return (!resp.empty? and ((resp =~ /404/).nil? or (resp =~ /not found/).nil?))
73 end
74
75 # Return an array of last element of twitter_id timeline
76 def read_twitter(twitter_id, include_friends = false)
77 resp = twitter_request(twitter_id, include_friends)
78 begin
79 # XML Document
80 return REXML::Document.new(resp)
81 rescue REXML::ParseException => e
82 return false
83 end
84 end
85
86 # Return an array of last element of twitter public timeline
87 def read_public_twitter()
88 return read_twitter("public_timeline")
89 end
90
91 def twitter_request(twitter_id, include_friends = false)
92 if include_friends
93 request = "/statuses/friends_timeline/#{twitter_id}.xml"
94 else
95 request = "/statuses/user_timeline/#{twitter_id}.xml"
96 end
97 response = ""
98 begin
99 http = Net::HTTP.new("twitter.com")
100 http.start do |http|
101 req = Net::HTTP::Get.new(request, {"User-Agent" => "Twitticious"})
102 response = http.request(req).body
103 end
104 rescue SocketError
105 return false
106 end
107 return response
108 end
109
110 end