private void write(RssWriter writer)
{
try
{
if (channels.Count == 0)
throw new InvalidOperationException("Feed must contain at least one channel.");
writer.Version = rssVersion;
writer.Modules = modules;
foreach (RssChannel channel in channels)
{
if (channel.Items.Count == 0)
throw new InvalidOperationException("Channel must contain at least one item.");
writer.Write(channel);
}
}
finally
{
if (writer != null)
writer.Close();
}
}
public ActionResult Rss()
{
var blog = Blog.GetBlogByName(CurrentWeb);
if (blog == null)
{
throw new HttpException(404, Messages.BlogNotExist);
}
int total;
var posts = Post.GetPostsOfBlog(blog.Id, 1, blog.PostsPerFeed, out total);
var baseUri = MyLifeContext.AbsoluteWebRoot;
Response.ContentType = "text/xml";
var rssWriter = new RssWriter(Response.OutputStream, Encoding.UTF8) {Version = RssVersion.RSS20};
var rssChanel = new RssChannel
{
Title = blog.Name,
Description = blog.Description,
Link = new Uri(baseUri, blog.CreatedBy + "/blog"),
LastBuildDate = DateTime.UtcNow
};
foreach (var post in posts)
{
rssChanel.Items.Add(new RssItem
{
Title = post.Title,
Description = post.Content,
Link = new Uri(baseUri, post.RelativeUrl),
Author = post.CreatedBy,
PubDate = post.CreatedDate
});
}
rssWriter.Write(rssChanel);
rssWriter.Close();
Response.Flush();
return new EmptyResult();
}
/// <summary>Writes the RSS feed to the specified file.</summary>
/// <remarks>The encoding is ISO-8859-1.</remarks>
/// <exception cref="ArgumentException">The filename is empty, contains only white space, or contains one or more invalid characters.</exception>
/// <exception cref="UnauthorizedAccessException">Access is denied.</exception>
/// <exception cref="ArgumentNullException">The filename is a (null c#, Nothing vb) reference.</exception>
/// <exception cref="DirectoryNotFoundException">The directory to write to is not found.</exception>
/// <exception cref="IOException">The filename includes an incorrect or invalid syntax for file name, directory name, or volume label syntax.</exception>
/// <exception cref="System.Security.SecurityException">The caller does not have the required permission.</exception>
/// <param name="fileName">specified file (including path) If the file exists, it will be truncated with the new content.</param>
/// <exception cref="InvalidOperationException">Feed must contain at least one channel.</exception>
/// <exception cref="InvalidOperationException">Channel must contain at least one item.</exception>
public void Write(string fileName)
{
var writer = new RssWriter(fileName);
write(writer);
}
