Class: PdfExtract::Resolve::SimpleTextQuery

Inherits:
Object
  • Object
show all
Defined in:
lib/references/resolve.rb

Constant Summary collapse 

nil

Class Method Summary collapse

Class Method Details

.create_session ⇒ Object 



82
83
84
85
86
87
88
89
 
# File 'lib/references/resolve.rb', line 82

def self.create_session
  if @@cookie.nil?
    Net::HTTP.start "www.crossref.org" do |http|
      response = http.get "/SimpleTextQuery"
      @@cookie = response["Set-Cookie"]
    end
  end
end

.find(ref) ⇒ Object 



54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
 
# File 'lib/references/resolve.rb', line 54

def self.find ref
  create_session

  post = Net::HTTP::Post.new "/SimpleTextQuery"
  post.add_field "Cookie", @@cookie
  post.add_field "Referer", "http://www.crossref.org/SimpleTextQuery"
  post.set_form_data({
    "command" => "Submit",
    "freetext" => ref,
    #"emailField" => "[email protected]",
    "doiField" => "",
    #"username" => "",
    #"password" => ""
  })
  response = Net::HTTP.start "www.crossref.org" do |http|
    http.request post
  end

  doc = Nokogiri::HTML response.body
  doi = doc.at_css "td.resultB > a"

  if doi.nil?
    {}
  else
    {:doi => doi.content.sub("doi:", "")}
  end
end