我正在使用这个 dashing 小部件中的以下 ruby 脚本,该小部件检索 RSS 提要并对其进行解析,并将解析后的标题和描述发送到小部件。
require 'net/http'
require 'uri'
require 'nokogiri'
require 'htmlentities'
news_feeds = {
"seattle-times" => "http://seattletimes.com/rss/home.xml",
}
Decoder = HTMLEntities.new
class News
def initialize(widget_id, feed)
@widget_id = widget_id
# pick apart feed into domain and path
uri = URI.parse(feed)
@path = uri.path
@http = Net::HTTP.new(uri.host)
end
def widget_id()
@widget_id
end
def latest_headlines()
response = @http.request(Net::HTTP::Get.new(@path))
doc = Nokogiri::XML(response.body)
news_headlines = [];
doc.xpath('//channel/item').each do |news_item|
title = clean_html( news_item.xpath('title').text )
summary = clean_html( news_item.xpath('description').text )
news_headlines.push({ title: title, description: summary })
end
news_headlines
end
def clean_html( html )
html = html.gsub(/<\/?[^>]*>/, "")
html = Decoder.decode( html )
return html
end
end
@News = []
news_feeds.each do |widget_id, feed|
begin
@News.push(News.new(widget_id, feed))
rescue Exception => e
puts e.to_s
end
end
SCHEDULER.every '60m', :first_in => 0 do |job|
@News.each do |news|
headlines = news.latest_headlines()
send_event(news.widget_id, { :headlines => headlines })
end
end
示例 rss 提要可以正常工作,因为 URL 用于 xml 文件。但是,我想将此用于不提供实际 xml 文件的不同 rss 提要。我想要的这个 rss 提要位于http://www.ttc.ca/RSS/Service_Alerts/index.rss 这似乎没有在小部件上显示任何内容。我没有使用“ http://www.ttc.ca/RSS/Service_Alerts/index.rss ”,而是尝试了“ http://www.ttc.ca/RSS/Service_Alerts/index.rss?format=xml ”和“查看源代码:http ://www.ttc.ca/RSS/Service_Alerts/index.rss ”但没有运气。有谁知道我如何获取与这个 rss 提要相关的实际 xml 数据,以便我可以将它与这个 ruby 脚本一起使用?