private void ExtractHeaderLinks(HttpResponseHeaders responseHeaders, SemanticsRegistry linkFactory)
{
_HeaderLinks = new List<Link>();
foreach (var header in responseHeaders.Where(h => h.Key.ToLowerInvariant() == "link"))
{
var links = header.Value.First();
foreach (Match match in LinkHeaderParser.Matches(links))
{
string relation = null;
if (match.Groups["rel"].Success)
{
relation = match.Groups["rel"].Value;
}
var link = linkFactory.CreateLink(relation);
link.Target = new Uri(match.Groups["href"].Value, UriKind.RelativeOrAbsolute);
_HeaderLinks.Add(link);
}
}
}
private static Dictionary<string, string> GetRpcHeaders(HttpResponseHeaders headers)
{
return headers
.Where(it => it.Key.StartsWith(HeadPrefix))
.ToDictionary(item => item.Key.Substring(HeadPrefix.Length, item.Key.Length - HeadPrefix.Length), item => item.Value.FirstOrDefault());
}
private Uri NextPageUriFromHeaders(HttpResponseHeaders headers) {
var linkHeader = headers
.Where(t => "Link".Equals(t.Key, StringComparison.OrdinalIgnoreCase))
.SelectMany(t => t.Value)
.FirstOrDefault();
if(linkHeader==null) return null;
var match = NextLinkPattern.Match(linkHeader);
if(!match.Success) return null;
return new Uri(match.Groups[1].Value);
}
