private async Task <string> Fetch(string id)
{
using (var hc = new HttpClient(new HttpClientHandler {
AllowAutoRedirect = false
}))
{
var requestUri = "http://cameran.in/p/v1/" + id;
ResolverUtils.RequestingMessage(this._logger, requestUri, null);
using (var res = await hc.GetAsync(requestUri).ConfigureAwait(false))
{
switch (res.StatusCode)
{
case HttpStatusCode.NotFound:
case HttpStatusCode.Found:
case HttpStatusCode.SeeOther:
throw new ImageNotFoundException();
}
res.EnsureSuccessStatusCode();
return(ResolverUtils.GetOgImage(
await res.Content.ReadAsHtmlDocument().ConfigureAwait(false)));
}
}
}
private async Task <CacheItem> FetchFile(string id)
{
var document = await this.DownloadHtml(id).ConfigureAwait(false);
// body の class に preview-photo または preview-video があるならば対応
return(new CacheItem
{
Type = document.Body.ClassList
.Where(x => x.StartsWith("preview-", StringComparison.Ordinal))
.Select(x => x.Substring(8)).SingleOrDefault(),
OgImage = ResolverUtils.GetOgImage(document)
});
}
