Module: Wallzilla::Fetcher

Extended by:
Fetcher
Included in:
Fetcher
Defined in:
lib/wallzilla/fetcher.rb

Constant Summary collapse

WRONG_API_KEY = 
"Your Flicker API key "

Instance Method Summary collapse

Instance Method Details

#download_photo(url) ⇒ Object 



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# File 'lib/wallzilla/fetcher.rb', line 40

def download_photo(url)
  uri = URI.parse(url)
  Net::HTTP.start(uri.host, uri.port, use_ssl: uri.scheme == "https") do |http|
    resp = http.get(uri.path)
    file = Tempfile.new(["flickr", ".jpg"], encoding: "binary")
    file.binmode
    file.write(resp.body)
    file.flush
    file
  end
end

#fetch(keyword) ⇒ Object

Downoads image to tempfile for the given keyword returns:

file handler if image found and downloaded
nil if no image found



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# File 'lib/wallzilla/fetcher.rb', line 15

def fetch(keyword)
  if image = search_image(keyword)
    download_photo(image)
  else
    nil
  end
end

#search_image(keyword) ⇒ Object 



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# File 'lib/wallzilla/fetcher.rb', line 23

def search_image(keyword)
  url = flickr_search_url(keyword)
  uri = URI.parse(url)
  response = Net::HTTP.get_response(uri)

  result = JSON.parse(response.body)

  if (100...117).cover?(result["code"])
    fail(result["message"])
  end

  photos = result["photos"]["photo"]
  return nil if photos.empty?

  photos.first[photo_size_code]
end