tumblr.rb

class Tumblr
  class << self
    def email
      credentials["email"]
    end

    def password
      credentials["password"]
    end

    def credentials
      @credentials ||= YAML.load(File.read("config/tumblr.yml"))
    end

    def common_data
      {
        "email"    => email,
        "password" => password,
        "type"     => "regular"
      }
    end

    def write(post)
      data = {
        "date"      => post.created_on.strftime("%Y-%m-%d %H:%M:%S"),
        "format"    => "markdown",
        "slug"      => post.stub,
        "title"     => post.title,
        "body"      => post.content
      }.merge(common_data)

      res = Net::HTTP.post_form(URI.parse('http://www.tumblr.com/api/write'), data)

      if res.is_a?(Net::HTTPSuccess)
        res.body
      else
        puts "Failed to create #{post.id}/#{post.stub} -- #{res.code} #{res.message}"
        false
      end
    end

    def delete(tumblr_id)
      res = Net::HTTP.post_form(URI.parse('http://www.tumblr.com/api/delete'),
                                common_data.merge({'post-id' => tumblr_id}))

      if res.is_a?(Net::HTTPSuccess)
        true
      else
        puts "Failed to delete #{tumblr_id} -- #{res.code} #{res.message}"
        false
      end
    end
  end
end