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D - http:// or ftp:// access

reply "Andrew Edwards" <edwardsac spamfreeusa.com> writes:
Is it possible to download a file from the internet through a D program?
Where might I find instructions on how to do such a thing?

Thanks,
Andrew
Jul 08 2003
next sibling parent "Andrew Edwards" <edwardsac spamfreeusa.com> writes:
This program is intended to remove the current installation of a program
from my computer and install a new copy. PLMSZIP.exe extracts three files.
OPEN.exe extracts multiple other files. The problem I'm running into is that
the files get extracted at the location of NEWPLMSs.exe instead of into the
pubs directory. Additionally I'd like to be able to get the PLMSZIP.exe file
directly from the internet where it is updated quarterly.

//: C02:newplms.d

extern(C) int system(char*);
int main()
{
  // Remove current pubs directory
  system("rd c:\\pubs /s /q");

  // create new directory
  system("md c:\\pubs");

  // get plmszip.exe from internet
  // it is always at the same location

  // move program to directory
  system("move c:\\plmszip.exe c:\\pubs");

  // Run program: This will extract 3 files
  system("c:\\pubs\\plmszip.exe");

  // Extract remainder of files.
  system("c:\\pubs\\open.exe");

  return 0;
}
Jul 08 2003
prev sibling parent reply Burton Radons <loth users.sourceforge.net> writes:
Andrew Edwards wrote:


 Is it possible to download a file from the internet through a D program?
 Where might I find instructions on how to do such a thing?


I put up a library for doing this back in March.  Here's a copy of the 
release notes:

I've put up a simple URL loading library at 
(http://www.opend.org/urllib.zip).  It requires dig to be installed, 
although it doesn't use it, just digc.  Comes with the documentation. It 
has the functions:

urlopen: Open a URL as a stream (http, file, ftp, nntp, and dict schema 
supported).
urlread: Open a URL and read its contents.
urllistdir: List a directory, return an array of URLStat (file and ftp 
schema supported).
urlencode, urldecode: Encode and decode the URL.  The above functions 
expect a decoded URL.

There's also a small, simple, not-thought-out sockets library.
Jul 08 2003
next sibling parent reply "Andrew Edwards" <edwardsac spamfreeusa.com> writes:
"Burton Radons" <loth users.sourceforge.net> wrote...


 I put up a library for doing this back in March.  Here's a copy of the
 release notes:

 I've put up a simple URL loading library at
 (http://www.opend.org/urllib.zip).  It requires dig to be installed,
 although it doesn't use it, just digc.


Thanks! I've ran into a little trouble building the program though. It keeps
squaking at me about undefined identifier 'Stream' in urllib_http.d(3). If I
import stream into this file, it complaines about undefined identifier
'Socket' in the same file:

urllib_http.d(23): identifier 'Socket' is not defined

When I import socket.d into this file I get the following error:

urllib.d(43): import string conflicts with stream.string at
c:\dmd\bin\..\src\phobos\stream.d(1497)

Obviously I'm doing something wrong. Please advise.

=============
DMC installed: c:\dm
DMD installed: c:\dmd
dig installed: c:\dig (make install)  // works fine
urllib       : c:\urllib (make)       // errorlevel 1

PATH = d:\dm\bin;d:\dmd\bin;d:\dig;...
Jul 08 2003
parent reply Burton Radons <loth users.sourceforge.net> writes:
Andrew Edwards wrote:

 "Burton Radons" <loth users.sourceforge.net> wrote...
 
 

I put up a library for doing this back in March.  Here's a copy of the
release notes:

I've put up a simple URL loading library at
(http://www.opend.org/urllib.zip).  It requires dig to be installed,
although it doesn't use it, just digc.


 
 
 Thanks! I've ran into a little trouble building the program though. It keeps
 squaking at me about undefined identifier 'Stream' in urllib_http.d(3). If I
 import stream into this file, it complaines about undefined identifier
 'Socket' in the same file:


Sorry about the delay.  There were problems with changed behaviour with 
private imports that needed amending, and the library didn't exploit 
digc's new library building method.  The zip file's been updated to fix 
both, and I also added gopher (I'd been meaning to add it for awhile, 
but I couldn't find any active Gophers at the time!).
Jul 10 2003
parent reply "Andrew Edwards" <edwardsac spamfreeusa.com> writes:
"Burton Radons" <loth users.sourceforge.net> wrote in...


 Sorry about the delay.  There were problems with changed behaviour with
 private imports that needed amending, and the library didn't exploit
 digc's new library building method.  The zip file's been updated to fix
 both, and I also added gopher (I'd been meaning to add it for awhile,
 but I couldn't find any active Gophers at the time!).


I'm gracious for the update! Got some issues with it though! Prior to
installing the new and improved version, I was able to compile and run my
program by moving socket.d and urllib.d to the phobos directory (initially
placed in the dmd\src directory) and changing the private imports to public
(deleted private keyword) in urllib.d. Your new installation no longer puts
urllib.d or socket.d in the dmd\src directory. After copying the files
(urllib_http.d copied to urllib.d) from the \urllib directory into
dmd\src\phobos and recompiling my program, I get the following error:

C:\d>dmd newplms urllib.lib
newplms.d(11): undefined identifier urlread

I have not changed the program except for adding a copyright and permission
statement since I completed on Wednesday.

Thanks for your help,
Andrew
Jul 12 2003
parent reply Burton Radons <loth users.sourceforge.net> writes:
Andrew Edwards wrote:


 "Burton Radons" <loth users.sourceforge.net> wrote in...
 
 

Sorry about the delay.  There were problems with changed behaviour with
private imports that needed amending, and the library didn't exploit
digc's new library building method.  The zip file's been updated to fix
both, and I also added gopher (I'd been meaning to add it for awhile,
but I couldn't find any active Gophers at the time!).


 
 
 I'm gracious for the update! Got some issues with it though! Prior to
 installing the new and improved version, I was able to compile and run my
 program by moving socket.d and urllib.d to the phobos directory (initially
 placed in the dmd\src directory) and changing the private imports to public
 (deleted private keyword) in urllib.d. Your new installation no longer puts
 urllib.d or socket.d in the dmd\src directory. After copying the files
 (urllib_http.d copied to urllib.d) from the \urllib directory into
 dmd\src\phobos and recompiling my program, I get the following error:


Please delete the files you copied over; they're not used anymore.  I 
meant to put that in the installation script and forgot about it.
Jul 12 2003
parent "Andrew Edwards" <edwardsac spamfreeusa.com> writes:
"Burton Radons" <loth users.sourceforge.net> wrote...


 Please delete the files you copied over; they're not used anymore.  I
 meant to put that in the installation script and forgot about it.


Done! I can compile the program but only from the \urllib directory or by
providing the location of all includes, which ended up looking like this:

C:\d>dmd newplms c:\urllib\urllib.d c:\urllib\urllib_file.d
c:\urllib\urllib_ftp
.d c:\urllib\socket.d c:\urllib\urllib_http.d c:\urllib\urllib_dict.d
c:\urllib\
urllib_nntp.d c:\urllib\urllib_gopher.d

I can get the job done, so the update is not really that important.

Thanks allot!
Andrew
Jul 12 2003
prev sibling next sibling parent reply "Andrew Edwards" <edwardsac spamfreeusa.com> writes:
OK...
I've got it working somewhat!
Here's an error I don't understand how to fix.

---------- Source Code ----------
//: C02:newdmd.d
import stream;
import urllib; // moved to phobos directory
               // used public vice private imports

//extern(C) int system(char*);
int main()
{
  File newdmd = new File;
  byte[] dmd = urlread("ftp://ftp.digitalmars.com/dmd.zip");
  newdmd.create("dmd.zip");
  newdmd.writeExact(dmd,dmd.length);
  return 0;
}

---------- Capture Output ----------
C:\dmd\bin\..\..\dm\bin\link.exe newdmd,,,user32+kernel32/noi;

OPTLINK (R) for Win32  Release 7.50B1
Copyright (C) Digital Mars 1989 - 2001  All Rights Reserved

newdmd.obj(newdmd)
 Error 42: Symbol Undefined _Durllib_urlread_FAaZAg
--- errorlevel 1
Terminated with exit code 1
Jul 09 2003
parent reply J C Calvarese <jcc7 cox.net> writes:
 ---------- Capture Output ----------
 C:\dmd\bin\..\..\dm\bin\link.exe newdmd,,,user32+kernel32/noi;
 
 OPTLINK (R) for Win32  Release 7.50B1
 Copyright (C) Digital Mars 1989 - 2001  All Rights Reserved
 
 newdmd.obj(newdmd)
  Error 42: Symbol Undefined _Durllib_urlread_FAaZAg
 --- errorlevel 1
 Terminated with exit code 1
 
 


It looks like you need to add the lib to your command line, like so...
dmd new.d urllib.lib

I got your program to compile and run (after massaging urllib AND phobos 
sources), so I think you're close.

Justin
Jul 09 2003
parent "Andrew Edwards" <edwardsac spamfreeusa.com> writes:
Thanks! I picked up on that while I was at work today! Unfortunately I can't
use or read newsgroups at work so I had to wait till I got back here!

Andrew
Jul 09 2003
prev sibling parent "Andrew Edwards" <edwardsac spamfreeusa.com> writes:
"Burton Radons" <loth users.sourceforge.net> wrote:

 I put up a library for doing this back in March.  Here's a copy of the
 release notes:


Great stuff Burton! I've completed the project and it works great! Thanks.

Now if I could only get away from all those system() calls, I'd be in
bussiness.

Andrew
Jul 09 2003