285196 - Save Link As downloads corrupted MP3 media files (Zone Alarm related)

Status: RESOLVED FIXED

(Toolkit :: Downloads API, defect)

Description

[John Littleton]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050223 Firefox/1.0.1 StumbleUpon/1.9992
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050223 Firefox/1.0.1 StumbleUpon/1.9992

This is an issue appeared in the last 8 months. In June/2004, I downloaded
multiple MP3 files successfully using Firefox's "Save Link As" command. 

With ZoneAlarm up/running and using Firefox's "{right click}/Save Link As"
option, the MP3 file downloaded is corrupted. The file will not play properly,
the file size is incorrect and the MPEG file information (Artist, Album Name,
etc) is truncated. 

If I "{left click}/select" the same webpage link from Firefox and play the
selection directly from the webpage, the MP3 is downloaded to the local "TEMP"
directory and plays properly. The MPEG file information is also complete. 

This problem occurs only with Firefox. Attempting the exact same procedure
("{right click}/Save Target As") in Internet Explorer 6 (IE Ver
5.1.2600.2180/SP2) downloads the MP3 file intact. The MP3 file plays properly
and all MPEG information is undamaged.

With the two MP3 sites I've tested, the MP3 files being downloaded are actually
coming from a domain name DIFFERENT from the webpage being viewed. Clearing ALL
ZoneAlarm Privacy Settings checkboxes to allow unrestricted access for the
webpage domain as well as the MP3 file download domain has no effect. If
ZoneAlarm is running, I cannot download MP3 files successfully with Firefox.

Firefox WILL download the MP3 file undamaged IF I "{right click}/Save Link As"
on the webpage, wait 15 seconds, and then click the "Save" button in the Windows
filename dialog box.

In both Firefox and IE6, when I "{right click}/Save ... As" on the MP3 webpage
link, a TCP connection is opened to the actual MP3 file server. If I click
"Save" and download the MP3 file while this initial TCP connection is open, the
file downloaded by Firefox is corrupt. If I wait until the initial TCP
connection terminates/closes and THEN click "Save" in the Windows filename
dialog box, the MP3 file downloads successfully. That first/initial connection
terminates/closes if the "Save" button is not selected within 15 seconds. If the
first/initial TCP connection is allowed to timeout and close, a new TCP
connection is established when the "Save" button in the Windows filename dialog
box is selected. The MP3 file then successfully downloads with all information
intact.

When ZoneAlarm is down, both Firefox and IE6 download MP3 files successfully. In
addition, their File Download Progress Bars accurately reflects file size and
progress of the file being downloaded. With ZoneAlarm up, the File Download
Progress Bars display "Unknown" for the file size and show a generic download
progress bar.

Increasing the maximum number of connections available in Firefox had no effect
on download success. Setting the MAX CONNECTIONS=50, MAX CONNECTIONS PER
SERVER=16, MAX PERSISTENT CONNECTIONS PER SERVER=20 and MAX PERSISTENT
CONNECTIONS PER PROXY=8 had no effect on download success.

Disabling all ZoneAlarm Firewall EXPERT RULES had no effect either and no other
ZoneAlarm PROGRAM RULES were enabled.

Windows XP SP2
IE Ver 5.1.2600.2180/SP2
Firefox Ver 1.0.1
ZoneAlarm Pro Ver 5.5.062.011

Reproducible: Always

Steps to Reproduce:
1. {right click/Save Link As} on MP3 file name
2. Immediately Left click "Save" button on Windows filename download dialog box.
3. View MP3 file information; MP3 file and file information is corrupt. File
will not play.

Actual Results:  
With ZoneAlarm up/running and using Firefox's "{right click}/Save Link As"
option, the MP3 file downloaded is corrupted. The file will not play properly,
the file size is incorrect and the MPEG file information (Artist, Album Name,
etc) is truncated. File size is incorrect for file downloaded.

Expected Results:  
MP3 file should download intact with accurate file size.

Comment 1

[John Littleton]

May be related to the following Bug Reports:

282451
231361
261781
259995
245829
243324 (strong similarity in behavior)
246165
255074

Comment 2

[Jim Jeffery not reading bug-mail 1/2/11]

I can confirm that downloads are corrupt with ZoneAlarm Pro 'Privacy Filter'
active. 

I can reproduce the corrupt file by downloading with 'Save Link as...' with
Right-click on any extension (xpi file type) and using Save Link as...
File size is 'unknown', hangs 10-20 secs at the end of download then finally
completes.  However, the file is corrupt, will not install and cannot be opened
with WinZip.  7-zip will open the file but its 'junk' and contains the 'header'
of the download server...as noted in the bug report. 

If one waits for 30 secs or so then starts the download it will download
properly, giving file size and the download ends immediately once complete. 

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050603
Firefox/1.0+ ID:2005060305

This possibly regressed between 05212005 and 05222005 builds. 

Comment 3

[Nick Laquidara]

I also have this problem using CA EZ Firewall which is built ontop on Zone
Alarm. The download will freeze for a few seconds at the end and then say the
file is complete. Then the mp3 time reads as 0:00 instead of the actual time.

Comment 4

[Jim Jeffery not reading bug-mail 1/2/11]

This appears to have been fixed by
[url=https://bugzilla.mozilla.org/show_bug.cgi?id=294759]Bug 294759[/url]

I can now right-click, "Save link as..." without waiting for 20-30 secs, and 
downloads via righ-click are no longer corrupt.  

May also have been fix by
[url=https://bugzilla.mozilla.org/show_bug.cgi?id=263698]Bug 263698[/url]
Remove Header info..

Comment 5

[Gabriel Sjoberg]

So it appears this is fixed.  If the reporter has nothing further to say, I'd
like to get one more person to verify this is indeed fixed, then mark it FIXED.

Comment 6

[John Littleton]

This issue appears to be <b>fixed with the Firefox Deer Park Alpha 2 release</b>
(Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b3) Gecko/20050712
Firefox/1.0+.) The "{right click}/Save Link As" option while ZoneAlarm Pro is
operational will download the MP3 file intact with accurate MP3 file info.

Comment 7

[Gabriel Sjoberg]

Reported fixed by OP.