public static string GetCharset(string htmlDoc)
{
if (htmlDoc == null)
{
return(null);
}
// First try to get the charset from Meta tag, then try the XML/XHTML approach.
string charset = HtmlTagExtract.GetMetaCharset(htmlDoc);
if (charset == null)
{
charset = HtmlTagExtract.GetXmlCharset(htmlDoc);
}
return(charset);
}
static bool TryGetMetaRefresh(WebString page, out Uri refreshUrl)
{
string metaRefresh = HtmlTagExtract.GetMetaRefresh(page.Document);
if (metaRefresh != null)
{
// Relative refresh URL.
// Try this one first, because creating an absolute URL out of a relative one starting with a '/' can
// lead to it being interpreted as a file:/// URI.
if (Uri.TryCreate(page.Location, metaRefresh, out refreshUrl))
{
return(true);
}
// Absolute refresh URL.
if (Uri.TryCreate(metaRefresh, UriKind.Absolute, out refreshUrl))
{
return(true);
}
}
refreshUrl = null;
return(false);
}