From 754fd40e40b13f74235fef7ee811a0e26202f1fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Molakvo=C3=A6=20=28skjnldsv=29?=
 <skjnldsv@protonmail.com>
Date: Wed, 22 Apr 2020 13:40:23 +0200
Subject: [PATCH] Fix IE11 upload fallback methods
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>
---
 apps/files/js/file-upload.js | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/apps/files/js/file-upload.js b/apps/files/js/file-upload.js
index 5aed0f6014..1e54d32e55 100644
--- a/apps/files/js/file-upload.js
+++ b/apps/files/js/file-upload.js
@@ -44,6 +44,28 @@ OC.FileUpload = function(uploader, data) {
 OC.FileUpload.CONFLICT_MODE_DETECT = 0;
 OC.FileUpload.CONFLICT_MODE_OVERWRITE = 1;
 OC.FileUpload.CONFLICT_MODE_AUTORENAME = 2;
+
+// IE11 polyfill
+// TODO: nuke out of orbit as well as this legacy code
+if (!FileReader.prototype.readAsBinaryString) {
+	FileReader.prototype.readAsBinaryString = function(fileData) {
+		var binary = ''
+		var pt = this
+		var reader = new FileReader()
+		reader.onload = function (e) {
+			var bytes = new Uint8Array(reader.result)
+			var length = bytes.byteLength
+			for (var i = 0; i < length; i++) {
+				binary += String.fromCharCode(bytes[i])
+			}
+			// pt.result  - readonly so assign binary
+			pt.content = binary
+			$(pt).trigger('onload')
+		}
+		reader.readAsArrayBuffer(fileData)
+	}
+}
+
 OC.FileUpload.prototype = {
 
 	/**
@@ -938,12 +960,13 @@ OC.Uploader.prototype = _.extend({
 
 					// in case folder drag and drop is not supported file will point to a directory
 					// http://stackoverflow.com/a/20448357
-					if ( ! file.type && file.size % 4096 === 0 && file.size <= 102400) {
+					if ( !file.type && file.size % 4096 === 0 && file.size <= 102400) {
 						var dirUploadFailure = false;
 						try {
 							var reader = new FileReader();
 							reader.readAsBinaryString(file);
-						} catch (NS_ERROR_FILE_ACCESS_DENIED) {
+						} catch (error) {
+							console.log(reader, error)
 							//file is a directory
 							dirUploadFailure = true;
 						}
@@ -1059,6 +1082,7 @@ OC.Uploader.prototype = _.extend({
 								message = response.message;
 							}
 						}
+						console.error(e, data, response)
 						OC.Notification.show(message || data.errorThrown, {type: 'error'});
 					}