/// <summary>
/// Try to extract the EditUri (RSD file URI) from the passed DOM
/// </summary>
/// <param name="weblogDOM"></param>
/// <returns></returns>
private static string ExtractEditUri(string homepageUrl, IHTMLDocument2 weblogDOM)
{
// look in the first HEAD tag
IHTMLElementCollection headElements = ((IHTMLDocument3)weblogDOM).getElementsByTagName("HEAD");
if (headElements.length > 0)
{
// get the first head element
IHTMLElement2 firstHeadElement = (IHTMLElement2)headElements.item(0, 0);
// look for link tags within the head
foreach (IHTMLElement element in firstHeadElement.getElementsByTagName("LINK"))
{
IHTMLLinkElement linkElement = element as IHTMLLinkElement;
if (linkElement != null)
{
string linkRel = linkElement.rel;
if (linkRel != null && (linkRel.ToUpperInvariant().Equals("EDITURI")))
{
return(UrlHelper.UrlCombineIfRelative(homepageUrl, linkElement.href));
}
}
}
}
// couldn't find one
return(null);
}
public static string DiscoverUrl(string homepageUrl, IHTMLDocument2 weblogDOM)
{
if (weblogDOM == null)
{
return(String.Empty);
}
try
{
// look in the first HEAD tag
IHTMLElementCollection headElements = ((IHTMLDocument3)weblogDOM).getElementsByTagName("HEAD");
if (headElements.length > 0)
{
// get the first head element
IHTMLElement2 firstHeadElement = (IHTMLElement2)headElements.item(0, 0);
// look for link tags within the head
foreach (IHTMLElement element in firstHeadElement.getElementsByTagName("LINK"))
{
IHTMLLinkElement linkElement = element as IHTMLLinkElement;
if (linkElement != null)
{
string linkRel = linkElement.rel;
if (linkRel != null && (linkRel.ToUpperInvariant().Equals("WLWMANIFEST")))
{
if (linkElement.href != null && linkElement.href != String.Empty)
{
return(UrlHelper.UrlCombineIfRelative(homepageUrl, linkElement.href));
}
}
}
}
}
}
catch (Exception ex)
{
Trace.Fail("Unexpected error attempting to discover manifest URL: " + ex.ToString());
}
// couldn't find one
return(String.Empty);
}
