[14489] | 1 | #!/usr/local/bin/perl
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| 2 |
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| 3 | $DIFF = "/usr/bin/diff";
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| 4 | $PERL = "/usr/bin/perl";
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| 5 |
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| 6 | use CGI qw(:standard);
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| 7 | use CGI::Carp;
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| 8 |
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| 9 | print header;
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| 10 | print start_html("File Diff Example");
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| 11 | print "<strong>Version </strong>$CGI::VERSION<p>";
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| 12 |
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| 13 | print <<EOF;
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| 14 | <H1>File Diff Example</H1>
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| 15 | Enter two files. When you press "submit" their diff will be
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| 16 | produced.
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| 17 | EOF
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| 18 | ;
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| 19 |
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| 20 | # Start a multipart form.
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| 21 | print start_multipart_form;
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| 22 | print "File #1:",filefield(-name=>'file1',-size=>45),"<BR>\n";
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| 23 | print "File #2:",filefield(-name=>'file2',-size=>45),"<BR>\n";
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| 24 | print "Diff type: ",radio_group(-name=>'type',
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| 25 | -value=>['context','normal']),"<br>\n";
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| 26 | print reset,submit(-name=>'submit',-value=>'Do Diff');
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| 27 | print endform;
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| 28 |
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| 29 | # Process the form if there is a file name entered
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| 30 | $file1 = param('file1');
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| 31 | $file2 = param('file2');
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| 32 |
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| 33 | $|=1; # for buffering
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| 34 | if ($file1 && $file2) {
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| 35 | $realfile1 = tmpFileName($file1);
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| 36 | $realfile2 = tmpFileName($file2);
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| 37 | print "<HR>\n";
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| 38 | print "<H2>$file1 vs $file2</H2>\n";
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| 39 |
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| 40 | print "<PRE>\n";
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| 41 | $options = "-c" if param('type') eq 'context';
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| 42 | system "$DIFF $options $realfile1 $realfile2 | $PERL -pe 's/>/>/g; s/</</g;'";
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| 43 | close $file1;
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| 44 | close $file2;
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| 45 | print "</PRE>\n";
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| 46 | }
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| 47 |
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| 48 | print <<EOF;
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| 49 | <HR>
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| 50 | <A HREF="../cgi_docs.html">CGI documentation</A>
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| 51 | <HR>
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| 52 | <ADDRESS>
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| 53 | <A HREF="/~lstein">Lincoln D. Stein</A>
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| 54 | </ADDRESS><BR>
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| 55 | Last modified 17 July 1996
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| 56 | EOF
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| 57 | ;
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| 58 | print end_html;
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| 59 |
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| 60 | sub sanitize {
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| 61 | my $name = shift;
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| 62 | my($safe) = $name=~/([a-zA-Z0-9._~#,]+)/;
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| 63 | unless ($safe) {
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| 64 | print "<strong>$name is not a valid Unix filename -- sorry</strong>";
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| 65 | exit 0;
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| 66 | }
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| 67 | return $safe;
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| 68 | }
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