From c91b22812fc57f035a8fa2df38ebab929c12011b Mon Sep 17 00:00:00 2001
From: Nicolas Stepien <stepien.nicolas@gmail.com>
Date: Sun, 22 Jan 2012 16:45:34 +0100
Subject: [PATCH] Finally fix file upload on Firefox.

---
 4chan_x.user.js | 11 ++++++++---
 script.coffee   |  9 +++++++--
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/4chan_x.user.js b/4chan_x.user.js
index 4b50b815e..2c8f0c579 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -1596,7 +1596,7 @@
           post.upfile = file;
           return qr.message.send(post);
         };
-        reader.readAsArrayBuffer(reply.file);
+        reader.readAsBinaryString(reply.file);
         return;
       }
       return qr.message.send(post);
@@ -1643,7 +1643,7 @@
         return postMessage(data, '*');
       },
       receive: function(data) {
-        var bb, form, name, url, val, _ref;
+        var bb, form, i, l, name, ui8a, url, val, _ref;
         if (data.abort) {
           if ((_ref = qr.ajax) != null) _ref.abort();
           return;
@@ -1653,8 +1653,13 @@
           url = "http://sys.4chan.org/" + data.board + "/post?" + (Date.now());
           delete data.board;
           if (engine === 'gecko' && data.upfile) {
+            l = data.upfile.buffer.length;
+            ui8a = new Uint8Array(l);
+            for (i = 0; 0 <= l ? i < l : i > l; 0 <= l ? i++ : i--) {
+              ui8a[i] = data.upfile.buffer.charCodeAt(i);
+            }
             bb = new MozBlobBuilder();
-            bb.append(data.upfile.buffer);
+            bb.append(ui8a.buffer);
             data.upfile = bb.getBlob(data.upfile.type);
           }
           form = new FormData();
diff --git a/script.coffee b/script.coffee
index 8f02da31e..ec5a0c85c 100644
--- a/script.coffee
+++ b/script.coffee
@@ -1216,7 +1216,7 @@ qr =
         file.type   = reply.file.type
         post.upfile = file
         qr.message.send post
-      reader.readAsArrayBuffer reply.file
+      reader.readAsBinaryString reply.file
       return
 
     qr.message.send post
@@ -1274,8 +1274,13 @@ qr =
         url = "http://sys.4chan.org/#{data.board}/post?#{Date.now()}"
         delete data.board
         if engine is 'gecko' and data.upfile
+          # binary string to ArrayBuffer code from Aeosynth's 4chan X
+          l = data.upfile.buffer.length
+          ui8a = new Uint8Array l
+          for i in  [0...l]
+            ui8a[i] = data.upfile.buffer.charCodeAt i
           bb = new MozBlobBuilder()
-          bb.append data.upfile.buffer
+          bb.append ui8a.buffer
           data.upfile = bb.getBlob data.upfile.type
         form = new FormData()
         for name, val of data