* Allow downloading the actual update archive.

The basic idea works, but the experience is a bit weird.  I'll polish it later.

src/discord/UpdateChecker.cpp

@@ -12,11 +12,6 @@ void UpdateChecker::StartCheckingForUpdates()
 	GetHTTPClient()->PerformRequest(true, NetRequest::GET, GetUpdateAPIURL(), 0, 0, "", "", "", OnRequestDone);
 }
 
-void UpdateChecker::DownloadUpdate(const std::string& url)
-{
-	DbgPrintF("Downloading update: %s", url.c_str());
-}
-
 #ifdef _MSC_VER
 #define IS_MINGW false
 #else

src/discord/UpdateChecker.hpp

@@ -8,7 +8,6 @@ class UpdateChecker
 public:
 	static std::string GetUpdateAPIURL();
 	static void StartCheckingForUpdates();
-	static void DownloadUpdate(const std::string& url);
 
 private:
 	static void OnRequestDone(NetRequest*);

src/resource.h

@@ -203,6 +203,7 @@
 #define IDS_NEW_VERSION_AVAILABLE       696
 #define IDS_FAILED_UPDATE_CHECK         697
 #define IDS_FAILED_TO_UPLOAD            698
+#define IDS_SAVED_UPDATE                699
 #define IDC_OPTIONS_TABS                801
 #define IDC_MY_ACCOUNT_BOX              802
 #define IDC_MY_ACCOUNT_NAME             803

src/resource.rc

@@ -975,6 +975,7 @@ BEGIN
                             "Discord Messenger has had a new update!\n\nYour version: %s\nLatest version: %s\n\nWould you like to download the new version?\n\nNote: No web browser window will be opened, the app itself will download the files into a location you choose.\nNote: You won't be bugged again for 3 days."
     IDS_FAILED_UPDATE_CHECK "Failed to check for updates! (error %d, message '%s').\n\nTrying again when the app restarts."
     IDS_FAILED_TO_UPLOAD    "Error! Can't upload file %s, got error %d."
+    IDS_SAVED_UPDATE        "Downloaded update successfully.  Go extract it and enjoy!"
 END
 
 #endif    // English (United States) resources

src/windows/Frontend_Win32.cpp

@@ -134,7 +134,15 @@ void Frontend_Win32::OnUpdateAvailable(const std::string& url, const std::string
 	free(tstr2);
 
 	if (MessageBox(g_Hwnd, buff, TmGetTString(IDS_PROGRAM_NAME), MB_ICONINFORMATION | MB_YESNO) == IDYES)
-		UpdateChecker::DownloadUpdate(url);
+	{
+		size_t idx = 0, idxsave = 0;
+		for (; idx != url.size(); idx++) {
+			if (url[idx] == '/')
+				idxsave = idx + 1;
+		}
+
+		DownloadFileDialog(g_Hwnd, url, url.substr(idxsave));
+	}
 
 	GetLocalSettings()->StopUpdateCheckTemporarily();
 }

src/windows/Main.cpp

@@ -1178,6 +1178,17 @@ LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 				DismissProfilePopout();
 			break;
 		}
+		case WM_IMAGESAVED:
+		{
+			// TODO: Probably should automatically extract and install it or something
+			MessageBox(
+				hWnd,
+				TmGetTString(IDS_SAVED_UPDATE),
+				TmGetTString(IDS_PROGRAM_NAME),
+				MB_ICONINFORMATION | MB_OK
+			);
+			break;
+		}
 
 		case WM_MOVE:
 			DismissProfilePopout();

src/windows/NetworkerThread.cpp

@@ -110,6 +110,9 @@ void NetworkerThread::FulfillRequest(NetRequest& req)
 	// for now.....
 	client.enable_server_certificate_verification(false);
 
+	// Follow redirects.  Used by GitHub auto-update service
+	client.set_follow_location(true);
+
 	Headers headers;
 	headers.insert(std::make_pair("User-Agent", GetFrontend()->GetUserAgent()));
 

src/windows/WinUtils.cpp

@@ -626,6 +626,7 @@ LPCTSTR GetFilter(const std::string& fileName)
 		EndsWith(fileName, ".jpeg")) return TEXT("JPG file\0*.jpg\0JPEG file\0*.jpeg\0\0");
 	if (EndsWith(fileName, ".gif"))  return TEXT("GIF file\0*.webp\0\0");
 	if (EndsWith(fileName, ".webp")) return TEXT("WEBP file\0*.webp\0\0");
+	if (EndsWith(fileName, ".zip"))  return TEXT("ZIP file\0*.zip\0\0");
 	return TEXT("All files\0*.*\0\0");
 }
 
@@ -636,9 +637,10 @@ void DownloadFileDialog(HWND hWnd, const std::string& url, const std::string& fi
 	LPTSTR fileTitle2 = ConvertCppStringToTString(fileName);
 
 	LPTSTR buff = (LPTSTR) new TCHAR[MAX_FILE];
-	_tcscpy(buff, fileTitle2);
-	free(fileTitle2);
+	buff[MAX_FILE - 1] = 0;
 	buff[0] = 0;
+	_tcsncpy(buff, fileTitle2, MAX_FILE);
+	free(fileTitle2);
 
 	OPENFILENAME ofn{};
 	ofn.lStructSize = sizeof(ofn);

vs/DiscordMessenger.vcxproj

@@ -241,6 +241,7 @@
     <Manifest Include="..\res\app.manifest" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\deps\httplib\httplib.h" />
     <ClInclude Include="..\src\discord\ActiveStatus.hpp" />
     <ClInclude Include="..\src\discord\Attachment.hpp" />
     <ClInclude Include="..\src\discord\Channel.hpp" />

vs/DiscordMessenger.vcxproj.filters

@@ -40,6 +40,9 @@
     <Filter Include="Source Files\Deps\Md5">
       <UniqueIdentifier>{8baa4f98-a70c-4417-afbc-c45523d2fb51}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Source Files\Deps\Httplib">
+      <UniqueIdentifier>{552415f8-f70b-4d64-9741-f2722deed194}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <Image Include="..\res\bmp_banner.bmp">
@@ -500,6 +503,9 @@
     <ClInclude Include="..\src\discord\UpdateChecker.hpp">
       <Filter>Header Files\Windows</Filter>
     </ClInclude>
+    <ClInclude Include="..\deps\httplib\httplib.h">
+      <Filter>Source Files\Deps\Httplib</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\src\windows\ProfileView.cpp">