{"id":655,"date":"2005-02-09T21:34:06","date_gmt":"2005-02-10T01:34:06","guid":{"rendered":"http:\/\/wordpress.cephas.net\/?p=655"},"modified":"2005-02-09T21:34:06","modified_gmt":"2005-02-10T01:34:06","slug":"retrieving-an-rss-feed-protected-by-basic-authentication-using-rome","status":"publish","type":"post","link":"https:\/\/cephas.net\/blog\/2005\/02\/09\/retrieving-an-rss-feed-protected-by-basic-authentication-using-rome\/","title":{"rendered":"Retrieving an RSS feed protected by Basic Authentication using ROME"},"content":{"rendered":"

Today I worked on a feature in a Struts web application where I needed to retrieve an RSS feed that is protected by Basic Authentication<\/a> and then display the the results of the feed in a web page. I’ve heard alot about ROME<\/a> in the past couple weeks, so I decided to try it out. It quickly passed the 10 minute test (downloaded rome-0.5.jar<\/a>, downloaded jdom.jar<\/a>, used the sample code from the tutorial<\/a> on the wiki); I was able to retrieve, parse and display the results of my own feed in no time:
\n
\nString feed = \"http:\/\/cephas.net\/blog\/index.rdf\";
\nURL feedUrl = new URL(feed);
\nSyndFeedInput input = new SyndFeedInput();
\nSyndFeed feed = input.build(new XmlReader(feedUrl));
\nSystem.out.println(feed);
\n<\/code>
\nEasy. But that wasn’t my problem. I needed to be able to set the Basic Authentication header which is usually done like this:
\n
\nString feed = \"http:\/\/yoursite.com\/index.rdf\";
\nURL feedUrl = new URL(feed)
\nHttpURLConnection httpcon = (HttpURLConnection)feedUrl.openConnection();
\nString encoding = new sun.misc.BASE64Encoder().
\n  encode(\"username:password\".getBytes());
\nhttpcon.setRequestProperty (\"Authorization\", \"Basic \" + encoding);
\nhttpcon.connect();
\n.. \/\/ do stuff
\nhttpcon.disconnect();
\n<\/code>
\nTurns out that the designers of the ROME library were pretty smart. In addition to including the XmlReader(URL url)<\/a><\/code> constructor, they also included a XmlReader(URLConnection connection)<\/a><\/code> constructor, which allows you to combine the two blocks of code I wrote above to make this:
\n
\nString feed = \"http:\/\/yoursite.com\/index.rdf\";
\nURL feedUrl = new URL(feed)
\nHttpURLConnection httpcon = (HttpURLConnection)feedUrl.openConnection();
\nString encoding = new sun.misc.BASE64Encoder().
\n  encode(\"username:password\".getBytes());
\nhttpcon.setRequestProperty (\"Authorization\", \"Basic \" + encoding);
\nSyndFeedInput input = new SyndFeedInput();
\nSyndFeed feed = input.build(new XmlReader(httpcon));
\n<\/code>
\nAdd this code to your Struts action<\/a>, put the resulting SyndFeed<\/code> in the request scope (request.setAttribute(\"feed\", feed);<\/code>) and then in the JSP:
\n
\n<c:forEach var=\"entry\" items=\"${feed.entries}\">
\n  <strong>${entry.title}<\/strong><br \/>
\n  ${entry.description.value}<br \/>
\n  <fmt:formatDate value=\"${entry.publishedDate}\" type=\"both\" pattern=\"MMMM dd, yyyy\" \/>
\n  by ${entry.author} | <a href=\"${entry.link}\">link<\/a>
\n<\/c:forEach>
\n<\/code>
\nSo there you have it. I hope that makes it easier for someone else!<\/p>\n","protected":false},"excerpt":{"rendered":"

Today I worked on a feature in a Struts web application where I needed to retrieve an RSS feed that is protected by Basic Authentication and then display the the results of the feed in a web page. I’ve heard alot about ROME in the past couple weeks, so I decided to try it out. … Continue reading Retrieving an RSS feed protected by Basic Authentication using ROME<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,2,22,10],"tags":[],"_links":{"self":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/posts\/655"}],"collection":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/comments?post=655"}],"version-history":[{"count":0,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/posts\/655\/revisions"}],"wp:attachment":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/media?parent=655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/categories?post=655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/tags?post=655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}