Staffan Malmgrens blogg

Stuff now imported into dasBlog

I went ahead and wrote a little C# program to convert a sharpreader-style cache RSS file into a set of dasBlog-compatible dayentry files. One little problem surfaced in that while BlogX used a url + random GUID for each entry’s guid, dasBlog uses only a random guid. This will have the effect of a bunch of entries (15, to be exact) appearing as new in your RSS aggregators. Sorry about that as well. Anyway, if someone needs to do something similar, here’s the code I used. It expects a sharpreader-generated file named “backup.xml” in its working directory (look for a suitable file in %USERPROFILE%\Application Data\SharpReader\Cache and rename it), and if you’re not in the CEST timezone, you should probably fix the line with the FIXME comment.

using System;
using System.Xml;

namespace DasBlogImport
{
  class Importer
  {
    static private void addElementToEntry(XmlDocument doc, 
                                          XmlElement entry, 
                                          String elementName, 
                                          String elementValue) 
    {
      XmlElement e = doc.CreateElement(elementName);
      e.InnerText = elementValue;
      entry.AppendChild(e);
    }
    [STAThread]
    static void Main(string[] args)
    {
      XmlDocument doc = new XmlDocument();
      doc.Load("backup.xml");
      XmlNodeList nodeList = doc.GetElementsByTagName("Items");
      XmlNode element;
      XmlNode entries = null;
      String lastDate = String.Empty;
      XmlDocument dayentry = null;

      foreach  (XmlNode item in nodeList) 
      {
        element = item.SelectSingleNode("PubDate");
        String date = element.InnerText.Substring(0,10);
        

        if (date != lastDate) 
        {
          // flush the entries for the current day, and start a new document
          if (dayentry != null)
            dayentry.Save(lastDate+".dayentry.xml");
          dayentry = new XmlDocument();
          dayentry.LoadXml("“);
          XmlElement root = dayentry.DocumentElement;
          element = dayentry.CreateElement(”Date”);
          element.InnerText = date + “T02:00:00.0000000+02:00″; // FIXME: If you’re not in the CEST timezone, you probably want to change this
          root.AppendChild(element);
          entries = dayentry.CreateElement(”Entries”);
          root.AppendChild(entries);
          lastDate = date;
        }
        XmlElement entry = dayentry.CreateElement(”Entry”);
        entries.AppendChild(entry);

        addElementToEntry(dayentry, entry, “Content”,        item.SelectSingleNode(”Description”).InnerText);
        addElementToEntry(dayentry, entry, “Created”,        item.SelectSingleNode(”PubDate”).InnerText);
        addElementToEntry(dayentry, entry, “Modified”,       item.SelectSingleNode(”PubDate”).InnerText);
        String guid = item.SelectSingleNode(”Guid”).InnerText;
        addElementToEntry(dayentry, entry, “EntryId”,        guid.Substring(guid.Length-36,36)); // 36 = the length of a 128-bit GUID in standard string form
        addElementToEntry(dayentry, entry, “Description”,    String.Empty);
        addElementToEntry(dayentry, entry, “Title”,          item.SelectSingleNode(”Title”).InnerText);
        if (item.SelectSingleNode(”Subject”) != null)
          addElementToEntry(dayentry, entry, “Categories”,   item.SelectSingleNode(”Subject”).InnerText);
        else
          addElementToEntry(dayentry, entry, “Categories”,   String.Empty);

        addElementToEntry(dayentry, entry, “IsPublic”,       “true”);
        addElementToEntry(dayentry, entry, “ShowOnFrontPage”,”true”);
        addElementToEntry(dayentry, entry, “Crossposts”,     String.Empty);
      }
    }
  }
}

Tags: dasBlog, metablogging

This entry was posted on tisdag, april 20th, 2004 at 03:33 and is filed under programming. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

Stuff now imported into dasBlog

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