Class: Picker::Facebook

Inherits:
Object
  • Object
show all
Defined in:
lib/picker/facebook.rb

Constant Summary collapse

APP_ID = 
"238077826328712"
SECRET = 
"17859f155d2d7734cabb3e1b78d3306b"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Facebook

Returns a new instance of Facebook.



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# File 'lib/picker/facebook.rb', line 8

def initialize
  @app = FbGraph::Application.new(APP_ID, :secret => SECRET)

  data = read_yaml
  unless data[:fb_long_token] && @app.debug_token(data[:fb_long_token]).is_valid
    save_access_token
  end

  token
end

Instance Attribute Details

#app ⇒ Object (readonly)

Returns the value of attribute app.



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# File 'lib/picker/facebook.rb', line 6

def app
  @app
end

#user ⇒ Object

Returns the value of attribute user.



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# File 'lib/picker/facebook.rb', line 6

def user
  @user
end

Instance Method Details

#download_albums_via_fql ⇒ Object 



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# File 'lib/picker/facebook.rb', line 71

def download_albums_via_fql
  # create a directory for this user
  path = File.join(ENV['HOME'], "picker", @user.name)
  FileUtils.mkdir_p path

  # change to this directory
  Dir.chdir(path) do
    @all_photos = []

    albums = query "SELECT aid, name, photo_count FROM album WHERE owner = #{@user.identifier}"
    albums.each do |album|
      FileUtils.mkdir_p album["name"]
      progress = ProgressBar.create(
        :title => album["name"],
        :total => album["photo_count"],
        :format => '%t ( %c/%C ) |%b>>%i| %f'
      )
      photos = query "SELECT pid, caption, images FROM photo WHERE aid = \"#{album["aid"]}\""
      Dir.chdir(album["name"]) do
        photos.each do |photo|
          unless @all_photos.include?(photo["pid"])
            @all_photos.push photo["pid"]
            # select the largest image for download
            size = 0; source = "";
            photo["images"].each do |img|
              dim = img["height"] * img["width"]
              if size < dim
                size = dim
                source = img["source"]
              end
            end
            system("wget -qct 3 #{source}") unless File.exists?(File.basename(source))
          end
          progress.increment
        end
      end
    end
  end
end

#download_tagged_via_fql ⇒ Object 



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# File 'lib/picker/facebook.rb', line 111

def download_tagged_via_fql
  # create a directory for this user
  path = File.join(ENV['HOME'], "picker", @user.name)
  FileUtils.mkdir_p path

  # change to this directory
  Dir.chdir(path) do
    # download all tagged images for this user
    album_name = "Tagged Photos"
    FileUtils.mkdir_p album_name
    photos = query "SELECT pid, caption, images FROM photo WHERE pid IN
                    (SELECT pid FROM photo_tag WHERE subject = #{@user.identifier})"
    progress = ProgressBar.create(
      :title => album_name,
      :total => photos.count,
      :format => '%t ( %c/%C ) |%b>>%i| %f'
    )
    Dir.chdir(album_name) do
      photos.each do |photo|
        unless @all_photos.include?(photo["pid"])
          @all_photos.push photo["pid"]
          # select the largest image for download
          size = 0; source = "";
          photo["images"].each do |img|
            dim = img["height"] * img["width"]
            if size < dim
              size = dim
              source = img["source"]
            end
          end
          system("wget -qct 3 #{source}") unless File.exists?(File.basename(source))
          progress.increment
        end
      end
    end

  end
end

#find_female_friends ⇒ Object 



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# File 'lib/picker/facebook.rb', line 61

def find_female_friends
  response = query "SELECT uid, name, sex FROM user WHERE uid IN (SELECT uid2 FROM friend WHERE uid1 = me())"
  response.reject{|x| x["sex"] == "male"}
end

#get_long_token ⇒ Object 



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# File 'lib/picker/facebook.rb', line 35

def get_long_token
  uri   = "https://graph.facebook.com/oauth/access_token"
  data  = "client_id=#{APP_ID}&client_secret=#{SECRET}&"
  data += "grant_type=fb_exchange_token&fb_exchange_token=#{@access_token}"
  response = `curl -s -d "#{data}" "#{uri}"`
  @long_token = response.split("&").first.split("=").last
end

#get_oauth_token ⇒ Object 



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# File 'lib/picker/facebook.rb', line 19

def get_oauth_token
  scope      = ["user_photos", "friends_photos", "user_about_me", "friends_about_me"]
  oauth_uri  = "https://www.facebook.com/dialog/oauth?client_id=#{APP_ID}"
  oauth_uri += "&redirect_uri=https://www.facebook.com/connect/login_success.html"
  oauth_uri += "&scope=" + scope.join(",")
  oauth_uri += "&response_type=token"

  say "Copy the following URI and open it in browser."
  say "Then, paste the URI for the page with \"success\" message here.."
  say oauth_uri
  puts

  success_uri = ask("Success URI?  ").strip
  @access_token = URI.parse(success_uri).fragment.split("&").first.split("=").last
end

#query(query) ⇒ Object 



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# File 'lib/picker/facebook.rb', line 57

def query(query)
  FbGraph::Query.new(query).fetch(@token)
end

#save_access_token ⇒ Object 



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# File 'lib/picker/facebook.rb', line 43

def save_access_token
  data = read_yaml
  data = data.merge({
    fb_access_token: get_oauth_token,
    fb_long_token:   get_long_token
  })
  write_yaml(data)
end

#token ⇒ Object 



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# File 'lib/picker/facebook.rb', line 52

def token
  data = read_yaml
  @token = data[:fb_long_token]
end