private PageRenderingResult RenderPage(string url, out string responseBody, out string errorMessage)
{
if (!url.StartsWith("http"))
{
url = UrlUtils.Combine(_serverUrl, url);
}
// Marking the link as valid, so it won't be shown multiple places and there won't be any additional requests
_brokenLinks.TryAdd(url, BrokenLinkType.None);
var result = HttpRequestHelper.RenderPage(url, out responseBody, out errorMessage);
if (result == PageRenderingResult.NotFound)
{
_brokenLinks.TryAdd(url, BrokenLinkType.Relative);
}
return(result);
}
/// <summary>
/// This method will check a url to see that it does not return server or protocol errors
/// </summary>
/// <param name="url">The path to check</param>
/// <returns></returns>
private BrokenLinkType ValidateByRequest(RequestValidationInfo rvi)
{
string url = rvi.Url;
// Allowing only one request to the same hostname at a time. Along with cache also ensures that the same url won't be requested to twice
//object hostNameSyncRoot = GetHostNameSyncObject(rvi.Hostname);
// lock (hostNameSyncRoot)
{
BrokenLinkType cachedResult;
if (_brokenLinks.TryGetValue(url, out cachedResult))
{
return(cachedResult);
}
bool success = HttpRequestHelper.MakeHeadRequest(url);
var result = success ? BrokenLinkType.None : rvi.LinkType;
SaveLinkCheckResult(url, result);
return(result);
}
}