Inheritance: ISimpleHttpGetByRangeClient
        private static long GetSizeOfResource(Uri url)
        {
            var client   = new SimpleHttpGetByRangeClient(url);
            var response = client.Get(url, 0, 1);

            if (response != null)
            {
                if (response.IsStatusCodeRedirect && !String.IsNullOrWhiteSpace(response.Location))
                {
                    if (response.Location != url.AbsoluteUri)
                    {
                        url = new Uri(response.Location);
                        Console.WriteLine("Detected Redirect: " + url);
                        GetSizeOfResource(url);
                    }
                    else
                    {
                        throw new ArgumentException("Supplied Url has no source");
                    }
                }
                else if (response.WasSuccessful && response.ContentRangeLength.HasValue && response.ContentRangeLength >= 0)
                {
                    return(response.ContentRangeLength.Value);
                }
                else
                {
                    throw new Exception("Response was not successful, status code: " + response.StatusCode);
                }
            }
            throw new Exception("Response was not successful, status code: unknown");
        }
Ejemplo n.º 2
0
        /// <summary>
        /// Returns the length of the resource by doing a quick get request
        /// </summary>
        /// <param name="uri"></param>
        /// <returns></returns>
        public static long GetContentLength(this Uri uri)
        {
            var retry      = 0;
            var maxRetries = 5;
            var maxTimeOut = 600;

            while (retry++ <= maxRetries)
            {
                try
                {
                    var client   = new SimpleHttpGetByRangeClient(uri);
                    var response = client.Get(uri, 0, 1);

                    if (response != null)
                    {
                        if (response.IsStatusCodeRedirect && !String.IsNullOrWhiteSpace(response.Location))
                        {
                            if (response.Location != uri.AbsoluteUri)
                            {
                                uri = new Uri(response.Location);
                                return(GetContentLength(uri));
                            }
                            else
                            {
                                throw new ArgumentException("Supplied Url has no source");
                            }
                        }
                        else if (response.WasSuccessful && response.ContentRangeLength >= 0)
                        {
                            return(response.ContentRangeLength.Value);
                        }
                        else if (response.StatusCode == 416)  //usually means zero byte file
                        {
                            return(response.ContentLength);
                        }
                        else if (response.StatusCode == 404)
                        {
                            // we don't retry 404
                            return(retry = maxRetries);
                        }
                        else
                        {
                            throw new Exception("Response was not successful, status code: " + response.StatusCode);
                        }
                    }
                }
                catch
                {
                    if (retry > maxRetries)
                    {
                        throw;
                    }

                    var delay = (int)Math.Min(maxTimeOut, Math.Pow(retry, 5));
                    System.Threading.Thread.Sleep(1000 * delay);
                }
            }
            throw new Exception("Response was not successful");
        }
Ejemplo n.º 3
0
        /// <summary>
        /// Returns the length of the resource by doing a quick get request
        /// </summary>
        /// <param name="uri"></param>
        /// <returns></returns>
        public static long GetContentLength(this Uri uri)
        {
            var retry = 0;
            var maxRetries = 5;
            var maxTimeOut = 600;

            while (retry++ <= maxRetries)
            {
                try
                {
                    var client = new SimpleHttpGetByRangeClient(uri);
                    var response = client.Get(uri, 0, 1);

                    if (response != null)
                    {
                        if (response.IsStatusCodeRedirect && !String.IsNullOrWhiteSpace(response.Location))
                        {
                            if (response.Location != uri.AbsoluteUri)
                            {
                                uri = new Uri(response.Location);
                                return GetContentLength(uri);
                            }
                            else
                            {
                                throw new ArgumentException("Supplied Url has no source");
                            }
                        }
                        else if (response.WasSuccessful && response.ContentRangeLength >= 0)
                        {
                            return response.ContentRangeLength.Value;
                        }
                        else if (response.StatusCode == 416)  //usually means zero byte file
                        {
                            return response.ContentLength;
                        }
                        else if (response.StatusCode == 404)
                        {
                            // we don't retry 404
                            return retry = maxRetries;
                        }
                        else
                        {
                            throw new Exception("Response was not successful, status code: " + response.StatusCode);
                        }

                    }
                }
                catch
                {
                    if (retry > maxRetries)
                        throw;

                    var delay = (int) Math.Min(maxTimeOut, Math.Pow(retry, 5));
                    System.Threading.Thread.Sleep(1000 * delay);
                }
            }
            throw new Exception("Response was not successful");
        }
 internal void GetChunk(long start, long end, uint retryCount = 2)
 {
     using (var client = new SimpleHttpGetByRangeClient(new Uri(url)))
     {
         SimpleHttpResponse response = client.Get(start, end - start);
         if (response.WasSuccessful)
         {
             HandleResponse(response);
         }
         else if (retryCount > 0)
         {
             //retry
             GetChunk(start, end, --retryCount);
         }
         else
         {
             throw new HttpException(string.Format("Could not retrieve content from {0} between {1} and {2}",
                                                   url, start, end));
         }
     }
 }
        private static long GetSizeOfResource(Uri url)
        {
            var client = new SimpleHttpGetByRangeClient(url);
            var response = client.Get(url, 0, 1);

            if (response != null)
            {
                if (response.IsStatusCodeRedirect && !String.IsNullOrWhiteSpace(response.Location))
                {
                    if (response.Location != url.AbsoluteUri)
                    {
                        url = new Uri(response.Location);
                        Console.WriteLine("Detected Redirect: " + url);
                        GetSizeOfResource(url);
                    }
                    else
                    {
                        throw new ArgumentException("Supplied Url has no source");
                    }
                }
                else if (response.WasSuccessful && response.ContentRangeLength.HasValue && response.ContentRangeLength >= 0)
                {
                    return response.ContentRangeLength.Value;
                }
                else
                {
                    throw new Exception("Response was not successful, status code: " + response.StatusCode);
                }

            }
            throw new Exception("Response was not successful, status code: unknown");
        }
 internal void GetChunk(long start, long end, uint retryCount = 2)
 {
     using (var client = new SimpleHttpGetByRangeClient(new Uri(url)))
     {
         SimpleHttpResponse response = client.Get(start, end - start);
         if (response.WasSuccessful)
         {
             HandleResponse(response);
         }
         else if (retryCount > 0)
         {
             //retry
             GetChunk(start, end, --retryCount);
         }
         else
         {
             throw new HttpException(string.Format("Could not retrieve content from {0} between {1} and {2}",
                                                   url, start, end));
         }
     }
 }