Class: Flickrip::FlickrImage

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

Instance Method Summary collapse

Constructor Details

#initialize(url) ⇒ FlickrImage

Returns a new instance of FlickrImage.



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# File 'lib/flickrip/flickr_image.rb', line 8

def initialize(url)
  @url = url
end

Instance Method Details

#compute_page_url_for_user_imageid_size(user, imageid, size) ⇒ Object 



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# File 'lib/flickrip/flickr_image.rb', line 44

def compute_page_url_for_user_imageid_size(user, imageid, size)
  "http://www.flickr.com/photos/#{user}/#{imageid}/sizes/#{size}/"
end

#image_for_size(size = "l", allow_redirect = false) ⇒ Object 



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# File 'lib/flickrip/flickr_image.rb', line 12

def image_for_size(size="l",allow_redirect=false)
  #TODO: if size is a symbol (.sym?), then convert it to the character representation
  toks = Flickrip::UrlParser.parse @url
  if toks.has_key?(:user) && toks.has_key?(:imageid)
    pageurl = compute_page_url_for_user_imageid_size toks[:user], toks[:imageid], size
    begin
      page = Nokogiri::HTML( open( pageurl, :redirect => allow_redirect ) )
      src = page.css("div#allsizes-photo > img").first.attributes["src"].value
      return open( src )
    rescue Exception => ex
      if ex.class == OpenURI::HTTPRedirect
        # Original image size not found
      end
      # TODO: Raise NonFlickrImageUrl exception
      # TODO: if there is a 404 or 302 error, or a Flickr unauthorized request, then
      # the file size requested does not exist. Raise InvalidFlickrImageSize exception
    end
  else
    # TODO: Raise NonFlickrImageUrl exception
  end

end

#largest_image ⇒ Object 



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# File 'lib/flickrip/flickr_image.rb', line 39

def largest_image
  # Let flickr try to redirect us to the largest size image
  image_for_size "o", true
end

#original_image ⇒ Object 



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# File 'lib/flickrip/flickr_image.rb', line 35

def original_image
  image_for_size "o"
end