# We use this to loop through every "website" in an
# attempt to determine to which site a URL belongs.
class Website
-
+
protected;
-
+
@url = nil
-
+
def self.inherited(subclass)
if superclass.respond_to? :inherited
superclass.inherited(subclass)
end
-
+
def get_page_data(url)
# A naive implementation that just grabs the
# data from a page.
http.get(uri.request_uri, self.headers)
end
+ # Set the referer in case it is needed for some later request.
+ self.headers['Referer'] = uri.request_uri
+
return response.body
end
-
-
+
+
public;
# Additional headers used when requesting data from the website.
def self.create(url)
# Factory method returning an instance of
# the appropriate subclass.
-
+
# Check the URL against each website's class.
# The class will know whether or not the URL
# "belongs" to its website.
raise NotImplementedError
end
-
+
# Same here. Abstract.
def get_video_url()
raise NotImplementedError
end
-
+
# The website class should be responsible for determining the
# video's filename. By default, we can take the last component
# of the video URL, but in some cases, subclasses will want
# Unless it contains URL parameters. We don't want those.
return file_and_params unless file_and_params.include?('?')
-
+
# There must be some parameters. Strip them off.
param_start_idx = file_and_params.index('?')
return file_and_params[0...(param_start_idx)]
end
-
+
end