Solved

File Upload With <INPUT TYPE="FILE"

Posted on 1997-12-16
7
169 Views
Last Modified: 2013-12-25
How do you handle a file being uploaded from the browser's machine with the html form element <INPUT TYPE
0
Comment
Question by:icache
7 Comments
 
LVL 2

Expert Comment

by:haystor
ID: 1831666
Are you prepared to program Perl to do this?
0
 

Author Comment

by:icache
ID: 1831667
Got the Llama book next to me, we're prepared....
0
 
LVL 5

Accepted Solution

by:
icd earned 200 total points
ID: 1831668
First get a copy of the cgi-bin.pl library from

http://cgi-lib.stanford.edu/cgi-lib/

The latest version of this provides for file upload. The above URL will give a description of the program.

Second. You need an input form. This is one I use.

<form method='POST' enctype='multipart/form-data' action='upload.pl'>
<input type="file" name="upfile" size=25>
<INPUT TYPE="image" NAME="submit" value="submit" src="/img/upload.gif" border=0 alt="upload" hspace=2>
</form>

Third. You need to produce your own cgi-script to process the input. The file contents will be in one of the input variables. This is the segment of code I use to save an uploaded file.

require "cgi-bin.pl";
&ReadParse;

if (open (FUPL, ">../files/uploadfilename.tmp")) {
  print FUPL $in{'upfile'};
  close (FUPL);
} else {
  print "<b>$in{filename}</b> upload failed<br>\n";
  return;
}

And that is all there is to it!
0
DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

 
LVL 5

Expert Comment

by:julio011597
ID: 1831669
I'm afraid that works on text files only, doesn't it?
You need some extra processing to handle encoded binary data.
0
 
LVL 5

Expert Comment

by:icd
ID: 1831670
No. It works on binary files as well. (At least I have had no problems so far!).
0
 

Author Comment

by:icache
ID: 1831671
You've stated that the file's contents will be in the the variable of the element $in('file'}. What I'm getting as the content of that element is just the file's name, not the contents. I haven't had a chance to install cgi-bin.pl and give your suggestion a try, but does cgi-bin.pl findthe contents in that element while stdin alone cannot
0
 
LVL 5

Expert Comment

by:icd
ID: 1831672
Actually it should be in $in{'upfile'} since that is the name of the <input type="file" input field.

Are you sure you used the correct 'enctype'?

Interpretation of stdin without cgi-bin.pl can be quite complex. I suggest you load a copy of cgi-bin.pl.

Another possible problem could be that ISTR that Microsoft IE does not support the input type="file". (I have not checked this recently).

0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The following is a collection of cases for strange behaviour when using advanced techniques in DOS batch files. You should have some basic experience in batch "programming", as I'm assuming some knowledge and not further explain the basics. For some…
In this tutorial I will show you how to make a simple HTML bar chart with the usage of WhizBase, If you want more information about WhizBase please read my previous articles at http://www.experts-exchange.com/ARTH_5123186.html (http://www.experts-ex…
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now