public byte[] Get(string uri)
        {
            using (var client = new RetryableWebClient())
            {
                var       done   = false;
                byte[]    result = null;
                Exception ex     = null;
                var       downloadProgressRenderer = new DownloadProgressRenderer();
                client.DownloadDataCompleted += (sender, e) => {
                    if (e.Error != null)
                    {
                        ex = e.Error;
                    }

                    try
                    {
                        if (e.Result != null)
                        {
                            downloadProgressRenderer.Update(100, e.Result.Length / 1024);
                        }
                        result = e.Result;
                    }
                    catch (System.Reflection.TargetInvocationException)
                    {
                        // This is sometimes thrown when an error occurs.  It is
                        // thrown when reporting that the result is invalid.
                    }

                    done = true;
                };
                client.DownloadProgressChanged += (sender, e) => {
                    if (!done)
                    {
                        downloadProgressRenderer.Update(e.ProgressPercentage, e.BytesReceived / 1024);
                    }
                };
                client.DownloadDataAsync(new Uri(uri));
                while (!done)
                {
                    System.Threading.Thread.Sleep(0);
                }

                downloadProgressRenderer.FinalizeRendering();

                if (ex != null)
                {
                    throw new InvalidOperationException("Download error", ex);
                }

                return(result);
            }
        }
Ejemplo n.º 2
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        private byte[] GetBinary(string packageUri)
        {
            try
            {
                using (var client = new WebClient())
                {
                    Console.WriteLine("HTTP GET " + packageUri);
                    var       done   = false;
                    byte[]    result = null;
                    Exception ex     = null;
                    var       downloadProgressRenderer = new DownloadProgressRenderer();
                    client.DownloadDataCompleted += (sender, e) => {
                        if (e.Error != null)
                        {
                            ex = e.Error;
                        }

                        result = e.Result;
                        done   = true;
                    };
                    client.DownloadProgressChanged += (sender, e) => {
                        if (!done)
                        {
                            downloadProgressRenderer.Update(e.ProgressPercentage, e.BytesReceived / 1024);
                        }
                    };
                    client.DownloadDataAsync(new Uri(packageUri));
                    while (!done)
                    {
                        System.Threading.Thread.Sleep(0);
                    }

                    Console.WriteLine();

                    if (ex != null)
                    {
                        throw new InvalidOperationException("Download error", ex);
                    }

                    return(result);
                }
            }
            catch (WebException)
            {
                Console.WriteLine("Web exception when retrieving: " + packageUri);
                throw;
            }
        }
        public byte[] Get(string uri)
        {
            try
            {
                using (var client = new WebClient())
                {
                    Console.WriteLine("HTTP GET " + uri);
                    var       done   = false;
                    byte[]    result = null;
                    Exception ex     = null;
                    var       downloadProgressRenderer = new DownloadProgressRenderer();
                    client.DownloadDataCompleted += (sender, e) => {
                        if (e.Error != null)
                        {
                            ex = e.Error;
                        }

                        try
                        {
                            if (e.Result != null)
                            {
                                downloadProgressRenderer.Update(100, e.Result.Length / 1024);
                            }
                            result = e.Result;
                        }
                        catch (System.Reflection.TargetInvocationException)
                        {
                            // This is sometimes thrown when an error occurs.  It is
                            // thrown when reporting that the result is invalid.
                        }

                        done = true;
                    };
                    client.DownloadProgressChanged += (sender, e) => {
                        if (!done)
                        {
                            downloadProgressRenderer.Update(e.ProgressPercentage, e.BytesReceived / 1024);
                        }
                    };
                    client.DownloadDataAsync(new Uri(uri));
                    while (!done)
                    {
                        System.Threading.Thread.Sleep(0);
                    }

                    downloadProgressRenderer.Finalize();

                    if (ex != null)
                    {
                        throw new InvalidOperationException("Download error", ex);
                    }

                    return(result);
                }
            }
            catch (WebException)
            {
                if (uri.StartsWith("https://"))
                {
                    // Attempt fallback to HTTP.
                    Console.Error.WriteLine("Web exception while using HTTPS; attempting HTTP fallback...");
                    uri = "http" + uri.Substring("https".Length);
                    return(Get(uri));
                }

                Console.WriteLine("Web exception when retrieving: " + uri);
                throw;
            }
        }
        public byte[] Get(string uri)
        {
            try
            {
                using (var client = new WebClient())
                {
                    Console.WriteLine("HTTP GET " + uri);
                    var done = false;
                    byte[] result = null;
                    Exception ex = null;
                    var downloadProgressRenderer = new DownloadProgressRenderer();
                    client.DownloadDataCompleted += (sender, e) => {
                        if (e.Error != null)
                        {
                            ex = e.Error;
                        }

                        try
                        {
                            if (e.Result != null)
                            {
                                downloadProgressRenderer.Update(100, e.Result.Length / 1024);
                            }
                            result = e.Result;
                        }
                        catch (System.Reflection.TargetInvocationException)
                        {
                            // This is sometimes thrown when an error occurs.  It is
                            // thrown when reporting that the result is invalid.
                        }

                        done = true;
                    };
                    client.DownloadProgressChanged += (sender, e) => {
                        if (!done)
                        {
                            downloadProgressRenderer.Update(e.ProgressPercentage, e.BytesReceived / 1024);
                        }
                    };
                    client.DownloadDataAsync(new Uri(uri));
                    while (!done)
                    {
                        System.Threading.Thread.Sleep(0);
                    }

                    downloadProgressRenderer.Finalize();

                    if (ex != null)
                    {
                        throw new InvalidOperationException("Download error", ex);
                    }

                    return result;
                }
            }
            catch (WebException)
            {
                if (uri.StartsWith("https://"))
                {
                    // Attempt fallback to HTTP.
                    Console.Error.WriteLine("Web exception while using HTTPS; attempting HTTP fallback...");
                    uri = "http" + uri.Substring("https".Length);
                    return Get(uri);
                }

                Console.WriteLine("Web exception when retrieving: " + uri);
                throw;
            }
        }