added download class

NovetusLauncher/NovetusFuncs/Downloader.cs

@@ -0,0 +1,140 @@
+using System;
+using System.Net;
+using System.Windows.Forms;
+using System.IO;
+
+class Downloader
+{
+    private string fileURL;
+    private string fileName;
+    private string fileFilter;
+    private string downloadOutcome;
+    private string downloadOutcomeAddText;
+    private ProgressBar downloadProgress;
+    private SaveFileDialog saveFileDialog1;
+
+    public Downloader(string url, string name, string filter, ProgressBar progress)
+    {
+        fileName = name;
+        fileURL = url;
+        fileFilter = filter;
+        downloadProgress = progress;
+    }
+
+    public void setDownloadOutcome(string text)
+    {
+        downloadOutcome = text;
+    }
+
+    public string getDownloadOutcome()
+    {
+        return downloadOutcome;
+    }
+
+    public void InitDownload(string additionalText = "")
+    {
+        downloadOutcomeAddText = additionalText;
+
+        saveFileDialog1 = new SaveFileDialog()
+        {
+            FileName = fileName,
+            //"Compressed zip files (*.zip)|*.zip|All files (*.*)|*.*"
+            Filter = fileFilter,
+            Title = "Save " + fileName
+        };
+
+        if (saveFileDialog1.ShowDialog() == DialogResult.OK)
+        {
+            try
+            {
+                int read = DownloadGZipFile(fileURL, saveFileDialog1.FileName);
+                downloadOutcome = "File " + Path.GetFileName(saveFileDialog1.FileName) + " downloaded! " + read + " bytes written!" + downloadOutcomeAddText;
+            }
+            catch (Exception ex)
+            {
+                downloadOutcome = "Error when downloading file: " + ex.Message;
+            }
+        }
+    }
+    // currently this only DLs GZipped files. Will mod it to download both types later on. - Bitl
+    public static int DownloadGZipFile(string remoteFilename, string localFilename)
+    {
+		//credit to Tom Archer (https://www.codeguru.com/columns/dotnettips/article.php/c7005/Downloading-Files-with-the-WebRequest-and-WebResponse-Classes.htm)
+		//and Brokenglass (https://stackoverflow.com/questions/4567313/uncompressing-gzip-response-from-webclient/4567408#4567408)
+		
+        // Function will return the number of bytes processed
+        // to the caller. Initialize to 0 here.
+        int bytesProcessed = 0;
+
+        // Assign values to these objects here so that they can
+        // be referenced in the finally block
+        Stream remoteStream = null;
+        Stream localStream = null;
+        WebResponse response = null;
+
+        // Use a try/catch/finally block as both the WebRequest and Stream
+        // classes throw exceptions upon error
+        try
+        {
+            // Create a request for the specified remote file name
+            //WebRequest request = WebRequest.Create(remoteFilename);
+            var request = (HttpWebRequest)WebRequest.Create(remoteFilename);
+            request.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip,deflate");
+            request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
+            if (request != null)
+            {
+                // Send the request to the server and retrieve the
+                // WebResponse object 
+                response = request.GetResponse();
+                if (response != null)
+                {
+                    // Once the WebResponse object has been retrieved,
+                    // get the stream object associated with the response's data
+                    remoteStream = response.GetResponseStream();
+
+                    // Create the local file
+                    localStream = File.Create(localFilename);
+
+                    // Allocate a 1k buffer
+                    byte[] buffer = new byte[1024];
+                    int bytesRead;
+
+                    // Simple do/while loop to read from stream until
+                    // no bytes are returned
+                    do
+                    {
+                        // Read data (up to 1k) from the stream
+                        bytesRead = remoteStream.Read(buffer, 0, buffer.Length);
+
+                        // Write the data to the local file
+                        localStream.Write(buffer, 0, bytesRead);
+
+                        // Increment total bytes processed
+                        bytesProcessed += bytesRead;
+                    } while (bytesRead > 0);
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine(e.Message);
+        }
+        finally
+        {
+            // Close the response and streams objects here 
+            // to make sure they're closed even if an exception
+            // is thrown at some point
+            if (response != null) response.Close();
+            if (remoteStream != null) remoteStream.Close();
+            if (localStream != null) localStream.Close();
+        }
+
+        // Return total bytes processed to caller.
+        return bytesProcessed;
+    }
+
+    void wc_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
+    {
+        downloadProgress.Value = e.ProgressPercentage;
+    }
+}

NovetusLauncher/NovetusFuncs/NovetusFuncs.projitems

@@ -14,6 +14,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)CodeExtensions.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)CryptoRandom.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)DiscordRpc.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Downloader.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)GlobalVars.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)IconLoader.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)IniFile.cs" />