69 lines
1.6 KiB
Perl
69 lines
1.6 KiB
Perl
#!/usr/local/bin/perl
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$DIFF = "/usr/bin/diff";
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$PERL = "/usr/bin/perl";
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use CGI qw(:standard);
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use CGI::Carp;
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print header;
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print start_html("File Diff Example");
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print "<strong>Version </strong>$CGI::VERSION<p>";
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print <<EOF;
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<H1>File Diff Example</H1>
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Enter two files. When you press "submit" their diff will be
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produced.
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EOF
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;
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# Start a multipart form.
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print start_multipart_form;
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print "File #1:",filefield(-name=>'file1',-size=>45),"<BR>\n";
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print "File #2:",filefield(-name=>'file2',-size=>45),"<BR>\n";
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print "Diff type: ",radio_group(-name=>'type',
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-value=>['context','normal']),"<br>\n";
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print reset,submit(-name=>'submit',-value=>'Do Diff');
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print endform;
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# Process the form if there is a file name entered
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$file1 = param('file1');
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$file2 = param('file2');
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$|=1; # for buffering
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if ($file1 && $file2) {
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$realfile1 = tmpFileName($file1);
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$realfile2 = tmpFileName($file2);
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print "<HR>\n";
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print "<H2>$file1 vs $file2</H2>\n";
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print "<PRE>\n";
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$options = "-c" if param('type') eq 'context';
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system "$DIFF $options $realfile1 $realfile2 | $PERL -pe 's/>/>/g; s/</</g;'";
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close $file1;
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close $file2;
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print "</PRE>\n";
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}
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print <<EOF;
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<HR>
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<A HREF="../cgi_docs.html">CGI documentation</A>
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<HR>
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<ADDRESS>
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<A HREF="/~lstein">Lincoln D. Stein</A>
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</ADDRESS><BR>
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Last modified 17 July 1996
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EOF
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;
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print end_html;
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sub sanitize {
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my $name = shift;
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my($safe) = $name=~/([a-zA-Z0-9._~#,]+)/;
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unless ($safe) {
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print "<strong>$name is not a valid Unix filename -- sorry</strong>";
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exit 0;
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}
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return $safe;
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}
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