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OAuth for ROME Propono

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Yesterday I wrote about OAuth support in the upcoming Roller 5.0 release. Today I'm following up with a post about OAuth support in ROME Propono.

As you may remember, ROME Propono is a subproject of ROME, the Java-based RSS/Atom feed library. ROME Propono includes an AtomPub server library and an AtomPub client. I added OAuth support to the AtomPub client and in this post, I'll show how you can use it to post to the Roller 5.0-dev (i.e. the snapshot build that I made available yesterday).

ROME 1.0 and coming soon: ROME Propono 1.0

In case you haven't already heard, thanks to the recent hard work of Nick Lothian, ROME 1.0 is now available. You can find downloads at rome.dev.java.net and a list of changes in the Change Log there. To celebrate this momentous event, I'm planning on releasing ROME Propono 1.0 as well, and in preparation, I've made a release candidate available. The new Propono includes ROME 1.0 and support for OAuth. You can get it via the links below:

rome-propono-1.0RC1.tar.gz (2.0 mb)

rome-propono-1.0RC1.zip (3 mb)

Posting to Roller via AtomPub and OAuth

To use the Propono AtomPub client, you place the Propono jars in your Java VM classpath and then call the AtomClientFactory to get started, as described in the ROME Propono 1.0 Javadocs.

Below is a Groovy example that shows how to post a blog entry to Roller via AtomPub and OAuth. You can get the consumer key, secret and URLs you need to call your instance of Roller from the OAuth Credentials page in the Roller admin interface.

  import com.sun.syndication.propono.atom.client.*
  import com.sun.syndication.feed.atom.*

  def authStrategy = new OAuthStrategy(
    "roller",                               // username
    "55132608a2fb68816bcd3d1caeafc933",     // consumer key
    "bb420783-fdea-4270-ab83-36445c18c307", // consumer secret
    "HMAC-SHA1",                            // key type

  // get the AtomPub service
  def appService = AtomClientFactory.getAtomService(
    "http://blogs.example.com/roller-services/app", authStrategy)

  // find workspace of my blog
  def blog = appService.findWorkspace("Blogging Roller")

  // find collecton that will accept entries
  def entries = blog.findCollection(null, "application/atom+xml;type=entry")

  // create and post an entry
  def entry = entries.createEntry()
  entry.title = "TestPost"
  def content = new Content()
  content.setValue("This is a test post. w00t!")

If you have questions or feedback about ROME Propono 1.0 RC1, please post them to the ROME dev mail list and I'll do my best to respond there.


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