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FreezingFire
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Joined: 23 Jun 2002
Posts: 3508
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 Posted: Wed Apr 16, 2003 9:41 pm Post subject: Scripting help... |
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Hello all,
I have been trying unsuccessfully for quite a while now to try and create
a sort of downloader with pausing avaiable. I know I shouldn't be asking
for this type of help but I just can't figure it out. Can anyone write a
simple, basic script that works with the VDSIPP extension to
pause/resume a download that has already been started?
Why I want to create this is because when I am downloading a large
file but want to browse the internet quickly it gets mighty slow on a
56k connection.
Thanks for any help or tips, large or small.  |
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Serge
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Joined: 04 Mar 2002
Posts: 1480
Location: Australia
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| Posted: Wed Apr 16, 2003 10:56 pm Post subject: |
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hi ff,
can't help you with pause/resume but can help you with stop 
Serge
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FreezingFire
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Joined: 23 Jun 2002
Posts: 3508
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| Posted: Wed Apr 16, 2003 11:00 pm Post subject: |
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This is what the VDSIPP help file says about resuming a download, but I
don't understand it.
| Quote: | INTERNET HTTP,RANGE,<http client>,<start-byte>,<end-byte>
This command allows you to download a certain part of a file. This allows you to only download portions of a file when you choose to. It's convenient as it allows you to resume a download or only download the part of a file you need. The <start-byte> parameter specifies the byte where to start the download. The <end-byte> parameter specifies the byte where to stop the download. This command will only work with the INTERNET HTTP,DOWNLOAD command, to download portions of a file. Please note that not all http servers allow you to specify the RANGE, you should check by trying to download portions of a file from the http server in question to see if it works or not. Also note that the RANGE will only work on binary/downloadable type files. |
I really appreciate your help on this Serge!
Perhaps all that needs to be done is to have an outline of the process that
needs to be used to pause/resume the download. 
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FreezingFire
VDSWORLD.com
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Serge
Professional Member
Joined: 04 Mar 2002
Posts: 1480
Location: Australia
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| Posted: Wed Apr 16, 2003 11:12 pm Post subject: |
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hi ff,
the way i read this is that if you stop a download, you can then resume it by using the <start-byte> and <end-byte>
the <start-byte> refers to the last byte of the part of the file you have downloaded so far +1 (the +1 is to start getting the next byte)
the <end-byte> refers to the last byte of the file you want to download
you will therefore need to get the last byte of the part of the file you have downloaded (on your computer) and the end byte of the file that you want to download (on the download server)
does that make sense to you?
Serge
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FreezingFire
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| Posted: Wed Apr 16, 2003 11:21 pm Post subject: |
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Yes it does but how do I get the end-byte? And it also mentions that some
servers don't support resume... how would I test that? 
Thanks.
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FreezingFire
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Serge
Professional Member
Joined: 04 Mar 2002
Posts: 1480
Location: Australia
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| Posted: Wed Apr 16, 2003 11:40 pm Post subject: |
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how about:
- <start-byte> get the file size locally from your computer or use the following to keep track of how much you have downloaded
| Quote: | @INTERNET(FTP,TRANSFERBYTES,<ftp client>)
This function returns the current size in bytes of the file being transfered/received, the command FTP THREADS should be set to the ON mode for this function to work
Copyright © 2001 PGWARE / All rights are reserved. |
- <end-byte> use the following
| Quote: | @INTERNET(FTP,FILEINFO,<ftp client>,<raw data>,<params>)
This function was added in to allow you to easily parse a filename, size, and type from the data that is returned by the @INTERNET(FTP,FILELIST) function. You should only pass a single line of <raw data> returned from the @INTERNET(FTP,FILELIST) function to this function to return the <params> required. The following <params> are allowed:
N - returns the filename (long file names not supported)
S - returns the file size
T - returns the file type (0: Directory; 1: Link; 2: File)
Copyright © 2001 PGWARE / All rights are reserved.
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as for testing it, what about
| Quote: | @INTERNET(FTP,RETURNCODE,<ftp client>)
Copyright © 2001 PGWARE / All rights are reserved. |
Serge
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FreezingFire
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Joined: 23 Jun 2002
Posts: 3508
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| Posted: Wed Apr 16, 2003 11:55 pm Post subject: |
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This is what I have so far...
| Code: | Title Pause/Resume
external vdsipp.dll
DIALOG CREATE,Pause/Resume,-1,0,300,95
DIALOG ADD,TEXT,TEXT1,10,10,,,URL of File:
DIALOG ADD,EDIT,file,24,8,282,19
DIALOG ADD,BUTTON,Download,55,36,,,Download
DIALOG ADD,BUTTON,Pause,54,110,64,24,Pause
DIALOG ADD,BUTTON,Stop,54,182,64,24,Stop
DIALOG SHOW
INTERNET HTTP,CREATE,1
INTERNET HTTP,THREADS,1,ON
INTERNET HTTP,PROTOCOL,1,1
INTERNET HTTP,USERAGENT,1,"Test Downloader Alpha"
:Evloop
wait event
goto @event()
:DownloadBUTTON
INTERNET HTTP,DOWNLOAD,1,@dlgtext(file),c:\testfile.html
goto evloop
:PauseBUTTON
if %%paused
dialog set,pause,Pause
%%paused = ""
else
%%lastbyte = @INTERNET(HTTP,TRANSFERBYTES,1)
%%paused = 1
dialog set,pause,Unpause
end
goto evloop
:StopBUTTON
INTERNET HTTP,STOP,1
goto evloop
:Close
INTERNET HTTP,STOP,1
INTERNET HTTP,DESTROY,1
exit |
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FreezingFire
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Serge
Professional Member
Joined: 04 Mar 2002
Posts: 1480
Location: Australia
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| Posted: Thu Apr 17, 2003 12:08 am Post subject: |
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i'm sorry ff but i have to go now and can't follow on with helping you
i will log on later today - my time (it's 10:07 am here now)
let me kow how you went
Serge
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FreezingFire
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| Posted: Thu Apr 17, 2003 12:10 am Post subject: |
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That's OK Serge, I'm starting to get it now.
Thanks for your help.
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FreezingFire
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FreezingFire
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| Posted: Thu Apr 17, 2003 12:28 am Post subject: |
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It's 7:28 PM here.  
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FreezingFire
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Serge
Professional Member
Joined: 04 Mar 2002
Posts: 1480
Location: Australia
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| Posted: Thu Apr 17, 2003 7:31 am Post subject: |
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glad to see that you are working it out...i don't think that it should be too hard to do but then again...
Serge
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