Mozilla/5.0 (Windows; U; WinNT4.0; en-US; 0.8.1) Gecko/20010323 Allow "Segmented Downloading" for large files (mutiple download segments per file) This is part of the meta bug to track all *Download Manager* requests (bug 25995)

Question. Do other tools currently provide this? Especially any open-source ones?

I only know that GetRight does it (not open source though).

a rfe cannot be mozilla1.0

Marking NEW.

updating component, adding a couple of folks.

spam: over to File Handling. i have not changed the assigned developer [or the other fields for that matter], so if anyone realizes that a bug should have a more appropriate owner, go ahead and change it. :)

->law

->future We don't have time.

Downloader for X: http://www.krasu.ru/soft/chuchelo/ implements this feature I think. Not tested though.

I believe lftp http://lftp.yar.ru/ does this with its pget command. It should be a good open source reference you can use, if I understand correctly what this bug is.

*** Bug 141760 has been marked as a duplicate of this bug. ***

I'm just being picky but does this RFE really have to to be in File Handling, it would be easier to find and avoid dups if it was in Download Manager, I would also suggest that people wouldn't want to use multiple connection/file part downloading outside of download manager anyway. Any pointers as to where to start hacking, if I felt so inclined?

-> Download manager (this bug is 'blocking' bug 75360 Download Manager Features)

Please note that Download Expert http://www.yanew.com (freeware, not open source) does segmented downloads. Very cool feature: I always use it for downloading Mozilla binaries since one download connection alone never saturates my isdn / lan connections.

Auto Segmenting is a great feature, but there must be a way for the user to flag certain sites that do not work with auto-segmenting. The bigest one that comes to mind is fileplanet.com.

Kevin, excellent point. Perhaps that should be a enhancement request depending on this bug? My gut tells me the best way to implement it would be to pop up a dialog to add the offending site to a "blacklist" when a resume fails. Obviously, the list would need to be "forgiving" somehow...

Some inspiration can perhaps be found from mget (haven't checked it out myself though) http://www.cse.iitk.ac.in/users/dbera/mget.php

More info: Since internet standards limit simultaneous downloads from each server to a certain number of connections, we could do like GetRight and support mirrored files. That would be another RFE depending on this bug, though. I personally don't find this feature very useful with either modem or LAN, since on LAN it's so fast anyway and on 56K your bandwidth is killed by this sort of thing. It would be tedious to manually ask the browser to split each download, but having this behavior always-on guarantees a muddy connection as soon as you start downloading anything.

The limitation is often not YOUR bandwidth.

I tried downloading Getright from Mozilla (sounds funny?), and attempted to save the installer file from 3 different mirrors onto the same location in my disk. I think what happened is that the Download Manager was attempting to download the three files separately, even though the Download list only showed one entry. The Download status kept switching between what I think must have been the status of the 3 different files. Since segmented file download is not supported, I would expect Mozilla to prompt me that a file was already being saved at that location in my hard-disk. I guess I should point out that I'm using Build:2002052308 I'm just downloading the 1.0 installer (and after tha the 1.1 alpha installer), and will check the behaviour on both. Should I be logging a new bug for this?

You should.

Another open-source segemented downloader is AXEL, from http://www.lintux.cx/axel.html - It's GPL'd and it seperates the downloading part and the frontend.

*** Bug 141472 has been marked as a duplicate of this bug. ***

Would adding the functionality from "Download Manager Tweak" extension help solve this at all? What about adding in "Bit torrent" ability?

I was looking for the comments I got and made on this years ago and didn't see them. I then searched bugzilla and discovered that this is a dupe of bug 40106. I'm not going to mark it that way, because that is wontfix. Read through it to see why the mozilla.org staff was against it at the time.

*** This bug has been marked as a duplicate of 40106 ***

(In reply to comment #25) > Read through it to see why the mozilla.org staff was against it at the time. I didn't see anybody of mozilla.org staff comment there, and the reporter closed the bug as WONTFIX. Now with Boris' duping, it means all reports about this topic are marked FIXED, i.e. noone will care of this anytime again. Probably bug 40106 should be reopened - that is, if anyone writing code in that part of Mozilla thinks it's worth to have this report around...

Reopening the other bug is fine, but there is no reason to have two identical bugs on the same topic; it just hides relevant discussion.