public async Task <(bool IsSuccess, PageHeaders PageHeaders, string ErrorMsg)> FetchTargetHeadersAsync(string url)
{
try
{
// Fetch Headers for URL
var httpClient = httpClientFactory.CreateClient("ZeroConfigClient");
var response = await httpClient.GetAsync(url, HttpCompletionOption.ResponseHeadersRead);
if (response.IsSuccessStatusCode)
{
// @TODO: Introduce external mapper for Model
var headers = new PageHeaders();
headers.headers = new List <(string HeaderKey, IEnumerable <string> HeaderValues)>();
foreach (var header in response.Headers)
{
headers.headers.Add((header.Key, header.Value));
}
return(true, headers, null);
}
return(false, null, response.ReasonPhrase);
}
catch (Exception e)
{
logger?.LogError(e.ToString());
return(false, null, e.Message);
}
}
/// <summary>
/// Gets the PDFPageHeader for the identified page and returns true if there is one.
/// </summary>
/// <param name="pageindex"></param>
/// <param name="header"></param>
/// <returns></returns>
internal bool GetHeaderForPage(int pageindex, out PDFPageHeader header)
{
PageAdornment adorn;
if (null != PageHeaders && PageHeaders.TryGetValue(pageindex, out adorn))
{
header = (PDFPageHeader)adorn;
return(true);
}
else
{
header = null;
return(false);
}
}