599462 - Downloads corrupt when saved to remote share

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Frank Osterberg]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10

I'm Using Firefox 3.6.10 on Windows 7 x64 Ultimate. I am trying to save files to a remote Windows 2008 R2 x64 Server File Share. On larger files a few MB... For example i downloaded the June DirectX SDK ( http://download.microsoft.com/download/A/E/7/AE743F1F-632B-4809-87A9-AA1BB3458E31/DXSDK_Jun10.exe  ) and not only was the file cut off (missing almost 1MB) it was also corrupt (different to valid local download) after 2.81 MB. I know the local download was OK since the signature was verified (file is signed by Microsoft). I know this is not a problem with the share because i then copied a ~5GB ISO File that i had a SH256 Hash of to that share and the hash matched when verified there. To make absolutely certain that it was not a problem from either my computer, the server, or the download provider, i created my own little VB.Net Console download client that downloads and saves directly to the remote server destination in 4kb chunks and it worked perfectly! 

I first posted this at:
https://support.mozilla.com/en-US/questions/753738

But didn't get any help :(

Reproducible: Always

Steps to Reproduce:
1. Pick any large download (>15MB)
2. Directly Save to a File Share on a Remote Window Server
3. 
Actual Results:  
File is corrupt / truncated. Firefox acts as if download finished normally (no error / warning)

Expected Results:  
File to be ok. Save locally or saved to remote share via direct download by self made client works flawlessly (also tried IE and it worked, but IE saves files locally and then moves them to the destination when finished, so can't be used to compare)

Using the following code i get a perfectly working download:
Sub Main()
Try
Dim oRequest As Net.HttpWebRequest = Net.HttpWebRequest.Create("http://download.microsoft.com/download/A/E/7/AE743F1F-632B-4809-87A9-AA1BB3458E31/DXSDK_Jun10.exe")
Dim oResponse As Net.HttpWebResponse = oRequest.GetResponse
Dim oStream As IO.Stream = oResponse.GetResponseStream
Dim byData(4095) As Byte, iRead As Integer = oStream.Read(byData, 0, byData.Length)
Dim daInfo As Date = Now
Using oOut As New IO.FileStream("\\192.168.1.33\Data\Downloads\HTTP\DXSDK_Jun10_MyTest.exe", IO.FileMode.Create, IO.FileAccess.Write, IO.FileShare.Read)
While iRead > 0
oOut.Write(byData, 0, iRead) : oOut.Flush()
iRead = oStream.Read(byData, 0, byData.Length)
If Now.Subtract(daInfo).TotalSeconds > 10 Then
daInfo = Now
Console.WriteLine("Downloaded " & (oOut.Position / (1024.0 * 1024.0)).ToString("0.00") & " MB!")
End If
End While
End Using
Catch oEx As Exception
MsgBox(oEx.ToString)
End Try
End Sub

Using FireFox 3.6 to Save to that location horribly fails without ANY errors on firefox even though the file is in even complete when firefox finishes and the file is totally unusable after just a few MB of data. Switching to Chome and hoping this will get fixed soon.

Comment 1

[Wayne Mery (:wsmwk)]

Reporter, can you still reproduce using a current version?
If no, please set status to RESOLVED and resolution to WORKSFORME.
If yes, please provide updated information.

Comment 2

[Phoenix]

Resolved per whiteboard