Class: WWDCDownloader

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

Constant Summary collapse

WWDC_LIBRARIES =

BASE_URI = ‘developer.apple.com/wwdc-services/cy4p09ns/a4363cb15472b00287b/sessions.json’

[{:base => 'https://developer.apple.com/library/prerelease/ios', :lib => '/navigation/library.json'}, 
{:base => 'https://developer.apple.com/library/prerelease/mac', :lib => '/navigation/library.json'}]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dl_dir, min_date) ⇒ WWDCDownloader

Returns a new instance of WWDCDownloader.



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# File 'lib/wwdcdownloader.rb', line 34

def initialize(dl_dir, min_date)
  self.dl_dir = dl_dir
  self.min_date = min_date
  self.mech = Mechanize.new
  self.mech.agent.http.verify_mode = OpenSSL::SSL::VERIFY_NONE
  self.mech.agent.follow_meta_refresh = true
  self.downloaded_files = []
  
  if ENV['http_proxy'] || ENV['HTTP_PROXY']
    uri = (ENV['http_proxy']) ? ENV['http_proxy'] : ENV['HTTP_PROXY']
    parsedUrl = URI.parse(uri)
    self.mech.set_proxy parsedUrl.host, parsedUrl.port
  end
end

Instance Attribute Details

#dl_dir ⇒ Object

Returns the value of attribute dl_dir.



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# File 'lib/wwdcdownloader.rb', line 32

def dl_dir
  @dl_dir
end

#downloaded_files ⇒ Object

Returns the value of attribute downloaded_files.



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# File 'lib/wwdcdownloader.rb', line 32

def downloaded_files
  @downloaded_files
end

#mech ⇒ Object

Returns the value of attribute mech.



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# File 'lib/wwdcdownloader.rb', line 32

def mech
  @mech
end

#min_date ⇒ Object

Returns the value of attribute min_date.



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# File 'lib/wwdcdownloader.rb', line 32

def min_date
  @min_date
end

Class Method Details

.run!(*args) ⇒ Object 



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# File 'lib/wwdcdownloader.rb', line 253

def self.run!(*args)
  puts "WWDC 2014 Session Material Downloader"
  puts "by Johannes Fahrenkrug, @jfahrenkrug, springenwerk.com"
  puts "See you next year!"
  puts

  if args.size < 1
    puts "Usage: wwdcdownloader <your Apple ID> [<target-dir>]"
    exit
  end

  dl_dir = if args.size > 1 
    args.last
  else
    'wwdc2014-assets'
  end
  
  w = WWDCDownloader.new(dl_dir, '2014-05-28')
  w.
  w.load
  return 0
end

Instance Method Details

#download_file(url, filename, dest_dir, duplicates_ok = true) ⇒ Object 



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# File 'lib/wwdcdownloader.rb', line 113

def download_file(url, filename, dest_dir, duplicates_ok = true)
  did_download = false
  if duplicates_ok or !self.downloaded_files.include?(url)            
    # remember what we downloaded
    self.downloaded_files << url

    puts "  Downloading #{url}"
    begin
      self.mech.get(url) do |downloaded_file|
        open(dest_dir + "/" + filename, 'wb') do |file|
          file.write(downloaded_file.body)
        end
        did_download = true
      end
    rescue Exception => e
      puts "  Download failed #{e}"
    end
  elsif !duplicates_ok
    puts "  Already downloaded this file, skipping."
  end
  
  did_download
end

#download_sample_code_for_page(a_page_url, dest_dir, duplicates_ok = true) ⇒ Object 



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# File 'lib/wwdcdownloader.rb', line 137

def download_sample_code_for_page(a_page_url, dest_dir, duplicates_ok = true)
  self.mech.get(a_page_url) do |page|
    has_samplecode = false
    page.links_with(:href => /\.zip/ ).each do |link|         
      has_samplecode = true
      #code_base_url = File.dirname(link.href)
      #download_sample_code_from_book_json("#{code_base_url}/book.json", code_base_url, dest_dir, duplicates_ok)
      if link.href =~ /(\w+\.zip)$/
        download_file(link.href, $1, dest_dir, duplicates_ok)
      else
        has_samplecode = false
      end
    end
  
    if !has_samplecode
      puts "  Sorry, this session doesn't have samplecode, cleaning up."
      begin
        Dir.delete(dest_dir)
      rescue
      end
    end
  
  end
end

#download_sample_code_from_book_json(book_json_url, code_base_url, dest_dir, duplicates_ok) ⇒ Object 



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# File 'lib/wwdcdownloader.rb', line 96

def download_sample_code_from_book_json(book_json_url, code_base_url, dest_dir, duplicates_ok)
  did_download = false
  self.mech.get(book_json_url) do |book_json|
    if book_json.body[0,1] == '<'
      puts " Sorry, this samplecode apparently isn't available yet: #{code_base_url}/book.json"
    else
      book_res = JSON.parse(book_json.body)
      filename = book_res["sampleCode"]
      url = "#{code_base_url}/#{filename}"
      
      did_download = download_file(url, filename, dest_dir, duplicates_ok)
    end
  end
  
  did_download
end

#load ⇒ Object 



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# File 'lib/wwdcdownloader.rb', line 162

def load
  mkdir(dl_dir)
  
 # get the sessions JSON  
 #self.mech.get(BASE_URI) do |page|
 #  res = JSON.parse(page.body)
 #
 #  # Was there an error?
 #  error = res['response']['error']
 #
 #  if (error)
 #    STDERR.puts "  Apple's API returned an error: '#{error}'"
 #    exit
 #  end
 #
 #  sessions = res['response']['sessions']
 #
 #  if sessions.size > 0
 #
 #    sessions.each do |session|
 #      if session['type'] == 'Session'
 #        title = session['title']
 #        session_id = session['id']
 #        puts "Session #{session_id} '#{title}'..."
 #
 #        # get the files
 #        dirname = "#{dl_dir}/#{session_id}-#{title.gsub(/\/|&|!|:/, '')}" 
 #        puts "  Creating #{dirname}"
 #        mkdir(dirname)
 #    
 #        begin
 #          download_sample_code_for_page(session['url'], dirname)
 #        rescue Mechanize::ResponseCodeError => e
 #          STDERR.puts "  Error retrieving list for session. Proceeding with next session (#{$!})"
 #          next
 #        end
 #      end
 #    end
 #  else
 #    print "No sessions :(.\n"
 #  end
 #end
  
  # scrape the WWDC libraries... 
  puts
  puts "Scraping the WWDC libraries (not all sample code might be linked up correctly yet)"
  WWDC_LIBRARIES.each do |lib_hash|
    lib = "#{lib_hash[:base]}#{lib_hash[:lib]}"
    self.mech.get(lib) do |page|
      body = page.body.gsub("''", '""')
      res = JSON.parse(body)
      
      docs = res['documents']
      
      if docs.size > 0

        docs.each do |doc|
          if doc[2] == 5 and doc[3] >= self.min_date # sample code and newer or equal to min date
            title = doc[0]
            
            puts "Sample Code '#{title}'..."

            # get the files
            dirname = "#{dl_dir}/#{title.gsub(/\/|&|!|:/, '')}" 
            puts "  Creating #{dirname}"
            did_create_dir = mkdir(dirname)
            
            segments = doc[9].split('/')
            url = "#{lib_hash[:base]}/samplecode/#{segments[2]}/book.json"

            begin     
              puts url 
              did_download = download_sample_code_from_book_json(url, "#{lib_hash[:base]}/samplecode/#{segments[2]}", dirname, false)
              if !did_download and did_create_dir
                Dir.delete( dirname )
              end
            rescue Mechanize::ResponseCodeError => e
              STDERR.puts "  Error retrieving list for sample code. Proceeding with next one (#{$!})"
              next
            end
          end
        end
      else
        print "No code samples :(.\n"
      end
    end
  end

  puts "Done."
end

#login ⇒ Object

Login



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# File 'lib/wwdcdownloader.rb', line 60

def 
  wrong_password = true

  while wrong_password do
    password = ask("Enter your ADC password:  ") { |q| q.echo = "*" }

    self.mech.get('https://developer.apple.com/membercenter/') do |page|
      my_page = page.form_with(:name => 'form2') do |f|
        f.appleId  = ARGV[0]
        f.accountPassword = password
      end.click_button

      if my_page.body =~ /incorrect/
        puts "Wrong password, please try again."
      else
        wrong_password = false
        
        # do we still need to select a team?
        if my_page.body =~ /saveTeamSelection/
          team_form = my_page.form_with(:name => 'saveTeamSelection')
          
          # select first team
          team_select = team_form.field_with(:id => 'teams')
          team_option = team_select.options[0]
          team_select.value = team_option
          
          puts "Selecting Team #{team_option.text}"
          
          button = team_form.button_with(:value => "Continue")
          team_select_result_page = team_form.click_button(button)
        end
      end
    end
  end
end

#mkdir(dir) ⇒ Object

Creates the given directory if it doesn’t exist already.



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# File 'lib/wwdcdownloader.rb', line 50

def mkdir(dir)
  if File.exists?(dir)
    false
  else
    Dir.mkdir dir 
    true
  end
end