public async Task <IActionResult> Get(string hostname)
{
if (string.IsNullOrWhiteSpace(hostname) || !hostname.Contains("."))
{
return(new BadRequestResult());
}
var url = $"http://{hostname}";
if (!Uri.TryCreate(url, UriKind.Absolute, out var uri))
{
return(new BadRequestResult());
}
var domain = uri.Host;
// Convert sub.domain.com => domain.com
//if(DomainName.TryParseBaseDomain(domain, out var baseDomain))
//{
// domain = baseDomain;
//}
var mappedDomain = _domainMappingService.MapDomain(domain);
if (!_iconsSettings.CacheEnabled || !_memoryCache.TryGetValue(mappedDomain, out Icon icon))
{
var result = await _iconFetchingService.GetIconAsync(domain);
if (result == null)
{
_logger.LogWarning("Null result returned for {0}.", domain);
icon = null;
}
else
{
icon = result.Icon;
}
// Only cache not found and smaller images (<= 50kb)
if (_iconsSettings.CacheEnabled && (icon == null || icon.Image.Length <= 50012))
{
_logger.LogInformation("Cache icon for {0}.", domain);
_memoryCache.Set(mappedDomain, icon, new MemoryCacheEntryOptions
{
AbsoluteExpirationRelativeToNow = new TimeSpan(_iconsSettings.CacheHours, 0, 0),
Size = icon?.Image.Length ?? 0,
Priority = icon == null ? CacheItemPriority.High : CacheItemPriority.Normal
});
}
}
if (icon == null)
{
return(new FileContentResult(_notFoundImage, "image/png"));
}
return(new FileContentResult(icon.Image, icon.Format));
}
public async Task <IActionResult> Get(string hostname)
{
if (string.IsNullOrWhiteSpace(hostname) || !hostname.Contains("."))
{
return(new BadRequestResult());
}
var url = $"http://{hostname}";
if (!Uri.TryCreate(url, UriKind.Absolute, out Uri uri))
{
return(new BadRequestResult());
}
var mappedDomain = _domainMappingService.MapDomain(uri.Host);
if (!_memoryCache.TryGetValue(mappedDomain, out Icon icon))
{
var iconUrl = $"{_iconsSettings.BestIconBaseUrl}/icon?url={mappedDomain}&size=16..32..200" +
$"&fallback_icon_url=https://raw.githubusercontent.com/bitwarden/web/master/src/images/fa-globe.png";
var response = await _httpClient.GetAsync(iconUrl);
response = await FollowRedirectsAsync(response, 1);
if (!response.IsSuccessStatusCode ||
!_allowedMediaTypes.Contains(response.Content.Headers.ContentType.MediaType))
{
return(new NotFoundResult());
}
var image = await response.Content.ReadAsByteArrayAsync();
icon = new Icon
{
Image = image,
Format = response.Content.Headers.ContentType.MediaType
};
// Only cache smaller images (<= 50kb)
if (image.Length <= 50012)
{
_memoryCache.Set(mappedDomain, icon, new MemoryCacheEntryOptions
{
AbsoluteExpirationRelativeToNow = new TimeSpan(_iconsSettings.CacheHours, 0, 0)
});
}
}
return(new FileContentResult(icon.Image, icon.Format));
}
public async Task <IActionResult> Get(string hostname)
{
if (string.IsNullOrWhiteSpace(hostname) || !hostname.Contains("."))
{
return(new BadRequestResult());
}
var url = $"http://{hostname}";
if (!Uri.TryCreate(url, UriKind.Absolute, out Uri uri))
{
return(new BadRequestResult());
}
var mappedDomain = _domainMappingService.MapDomain(uri.Host);
if (!_memoryCache.TryGetValue(mappedDomain, out Icon icon))
{
var result = await _iconFetchingService.GetIconAsync(mappedDomain);
if (result == null)
{
return(new NotFoundResult());
}
icon = result.Icon;
// Only cache smaller images (<= 50kb)
if (icon.Image.Length <= 50012)
{
_memoryCache.Set(mappedDomain, icon, new MemoryCacheEntryOptions
{
AbsoluteExpirationRelativeToNow = new TimeSpan(_iconsSettings.CacheHours, 0, 0)
});
}
}
return(new FileContentResult(icon.Image, icon.Format));
}
public async Task <IActionResult> Get(string hostname)
{
if (string.IsNullOrWhiteSpace(hostname) || !hostname.Contains("."))
{
return(new BadRequestResult());
}
var url = $"http://{hostname}";
if (!Uri.TryCreate(url, UriKind.Absolute, out Uri uri))
{
return(new BadRequestResult());
}
var mappedDomain = _domainMappingService.MapDomain(uri.Host);
if (!_memoryCache.TryGetValue(mappedDomain, out Icon icon))
{
var iconUrl = $"{_iconsSettings.BestIconBaseUrl}/icon?url={mappedDomain}&size=16..32..200" +
$"&fallback_icon_url=https://raw.githubusercontent.com/bitwarden/web/master/src/images/fa-globe.png";
var response = await _httpClient.GetAsync(iconUrl);
if (response.StatusCode == HttpStatusCode.Redirect && response.Headers.Contains("Location"))
{
var locationHeader = response.Headers.GetValues("Location").FirstOrDefault();
if (!string.IsNullOrWhiteSpace(locationHeader) &&
Uri.TryCreate(locationHeader, UriKind.Absolute, out Uri location))
{
var message = new HttpRequestMessage
{
RequestUri = location,
Method = HttpMethod.Get
};
// Let's add some headers to look like we're coming from a web browser request. Some websites
// will block our request without these.
message.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) " +
"AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36");
message.Headers.Add("Accept-Language", "en-US,en;q=0.8");
message.Headers.Add("Cache-Control", "no-cache");
message.Headers.Add("Pragma", "no-cache");
message.Headers.Add("Accept", "image/webp,image/apng,image/*,*/*;q=0.8");
response = await _httpClient.SendAsync(message);
}
}
if (!response.IsSuccessStatusCode)
{
return(new NotFoundResult());
}
var image = await response.Content.ReadAsByteArrayAsync();
icon = new Icon
{
Image = image,
Format = response.Content.Headers.ContentType.MediaType
};
// Only cache smaller images (<= 50kb)
if (image.Length <= 50012)
{
_memoryCache.Set(mappedDomain, icon, new MemoryCacheEntryOptions
{
AbsoluteExpirationRelativeToNow = new TimeSpan(_iconsSettings.CacheHours, 0, 0)
});
}
}
return(new FileContentResult(icon.Image, icon.Format));
}