#!/usr/bin/perl -s
#
# cvsweb - a CGI interface to a CVS repository tree.
#
# Note, this is under RCS control in /home/fenner:
# #Header: /home/fenner/cvsweb/RCS/cvsweb,v 1.6 1996/09/12 21:56:32 fenner Exp #
#
# ... and CVS (cvs-buildpackage) control at the Debian GNU/Linux maintainer's.
# $Header: /usr/local/cvsroot/debian/cvsweb/cvsweb.in,v 1.9 1998/04/08 11:57:52 karlheg Exp $
#
# Written by Bill Fenner <fenner@freebsd.org>.
#
# Copyright (C) 1996
#	William C. Fenner.  All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. Neither the name of the author nor the names of any co-contributors
#    may be used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY William C.  Fenner AND CONTRIBUTORS ``AS IS''
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL William C.  Fenner, HIS BROTHER B1FF, OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#
# This script has been modified for the Debian GNU/Linux distribution
# by Karl M. Hegbloom <karlheg@debian.org>.  I'll do my best to
# forward modifications and patches upstream, where they apply.  The
# Debian GNU/Linux packageing and other modifications are hereby
# Copyright 1998, Software in the Public Interest, Inc., subject to
# the terms of the original licence as stated above by the script's
# author.  Share the software, folks.
#
# To do:
#  - Parse the ,v yourself instead of using rlog output, since people
#	sometimes paste rlog output into commit entries, making it impossible
#	to parse.
#  - Figure out how to do directory-wide diff's (get named tags cheaply?)
#
# Maybe:
#  - Port it to guile-scsh or scheme48-scsh
#  - compile or `undump' the perl version

# Read the configuration data.
require '/etc/cvsweb.conf';

require 'timelocal.pl';
require 'ctime.pl';

$cvsweb_version = "@cvsweb_version@";
# $cvsweb_version = "DEBUG";

if (defined($rcsbinaries)) {
  $ENV{'PATH'} = $rcsbinaries . ":" . $ENV{'PATH'};
}

$verbose = $v;
($where = $ENV{'PATH_INFO'}) =~ s|^/||;
$where =~ s|/$||;
$fullname = $cvsroot . '/' . $where;
($scriptname = $ENV{'SCRIPT_NAME'}) =~ s|^/?|/|;
$scriptname =~ s|/$||;
$scriptwhere = $scriptname . '/' . $where;
$scriptwhere =~ s|/$||;

foreach $pattern ( @restrict ) {
  if ( $fullname =~ m!$pattern! ) {
    &fatal("403 - Forbidden", "Access to /$where is prohibited.");
  }
}

if (!-d $cvsroot) {
  &fatal("500 Internal Error",'$CVSROOT not found!');
}

if (-d $fullname) {
  # Something that would be nice to support, although I have no real
  # good idea of how, would be to get full directory diff's, using
  # symbolic names (revision numbers would be meaningless).
  # The problem is finding a list of symbolic names that is common
  # to all the files in the directory.
  #
  opendir(DIR, $fullname) || &fatal("404 Not Found","$where: $!");
  @dir = readdir(DIR);
  closedir(DIR);
  print "Content-type: text/html\n\n";
  print "<HTML><HEAD><TITLE>${title}: /$where</TITLE></HEAD>\n";
  if (defined($body)) {
    print $body;
  } else {
    print "<BODY ";
    if (defined ($bgcolor)) {
      print "BGCOLOR=\"" . $bgcolor . "\" ";
    }
    if (defined ($background)) {
      print "BACKGROUND=\"" . $background . "\"";
    }
    print ">\n";
  }
  print "\n<!-- Generated by cvsweb-$cvsweb_version -->\n";
  print "$h1\n";
  if ($where eq '') {
    print $intro;
  } else {
    print $shortinstr;
  }
  print "<p>Current directory: <b><a href=\"${scriptname}\">\ROOT/</a>";
  $d = "";
  foreach $s (split(?/?, $where)) {
    $d = "$d/$s";
    print "<a href=\"${scriptname}${d}\">${s}/</a>";
  }
  print "</b>\n";
  print "<BR><BR><HR><TABLE>\n";
  @dir = sort (@dir);
  foreach (@dir) {
    if ($_ eq '..') {
      last if ($where eq '');
      ($updir = $scriptwhere) =~ s|[^/]+$||;
      if (defined($backicon)) {
	print "<TH><IMG SRC=\"$backicon\" ALT=\"[UP ]\" ";
	if (defined($backicon_w) && defined($backicon_h)) {
	  print "WIDTH=\"$backicon_w\" HEIGHT=\"$backicon_h\"";
	}
	print ">";
      } else {
	print "[UP ]";
      }
      print " ", &link("Previous Directory",$updir), "</TH><BR>";
      last;
    }
  }
  print "<TR><TD WIDTH=33% VALIGN=TOP><PRE>\n";
  $n_dir_col = int (@dir / 3);
  $n_dir = 0;
  foreach (@dir) {
    next if ($_ eq '.' || $_ eq '..');
    if ($n_dir > $n_dir_col) {
      print "</PRE></TD><TD WIDTH=33% VALIGN=TOP><PRE>\n";
      $n_dir = 0;
    }
    if (-d $fullname . "/" . $_) {
      if (defined($diricon)) {
	print "<IMG SRC=\"$diricon\" ALT=\"[DIR]\" ";
	if (defined($diricon_w) && defined($diricon_h)) {
	  print "WIDTH=\"$diricon_w\" HEIGHT=\"$diricon_h\"";
	}
	print ">";
      } else {
	print "[DIR]";
      }
      print " ",
      &link($_ . "/", $scriptwhere . '/' . $_ . '/'), "<BR>";
    } elsif (s/,v$//o) {
      if (defined($lambdaicon) && m/\.(?:el|lsp|lisp|scm)$/oi) {
	print "<IMG SRC=\"$lambdaicon\" ALT=\"[ L ]\" ";
	if (defined($lambdaicon_w) && defined($lambdaicon_h)) {
	  print "WIDTH=\"$lambdaicon_w\" HEIGHT=\"$lambdaicon_h\"";
	}
	print ">";
      }
      elsif (defined($cicon) && m/\.(?:c|cxx|cpp)$/oi) {
	print "<IMG SRC=\"$cicon\" ALT=\"[ C ]\" ";
	if (defined($cicon_w) && defined($cicon_h)) {
	  print "WIDTH=\"$cicon_w\" HEIGHT=\"$cicon_h\"";
	}
	print ">";
      }
      elsif (defined($hicon) && m/\.(?:h|hpp)$/oi) {
	print "<IMG SRC=\"$hicon\" ALT=\"[ H ]\"";
	if (defined($hicon_w) && defined($hicon_h)) {
	  print "WIDTH=\"$hicon_w\" HEIGHT=\"$hicon_h\"";
	}
	print ">";
      }
      elsif (defined($texticon)) {
	print "<IMG SRC=\"$texticon\" ALT=\"[TXT]\"";
	if (defined($texticon_w) && defined($texticon_h)) {
	  print "WIDTH=\"$texticon_w\" HEIGHT=\"$texticon_h\"";
	}
	print ">";
      } else {
	print "[TXT]";
      }
      print " ", &link($_, $scriptwhere . '/' . $_), "<BR>";
    }
    $n_dir += 1;
  }
  print "</PRE></TD></TR></TABLE>\n";
  print "<HR><ADDRESS>Created by cvsweb-$cvsweb_version</ADDRESS><BR>\n";
  print $tailhtml,"\n";
  print "</BODY></HTML>\n";
} elsif (-f $fullname . ',v') {
  if ($_ = $ENV{'QUERY_STRING'}) {
    s/%(..)/sprintf("%c", hex($1))/ge; # unquote %-quoted
    if (/rev=([\d\.]+)/) {
      $rev = $1;
      open(RCS, "co -p$rev '$fullname' 2>&1 |") ||
	&fail("500 Internal Error", "Couldn't co: $!");
      # /home/ncvs/src/sys/netinet/igmp.c,v  -->  standard output
      # revision 1.1.1.2
      # /*
      $_ = <RCS>;
      if (/^\Q$fullname\E,v\s+-->\s+standard output\s*$/o) {
	# As expected
      } else {
	&fatal("500 Internal Error",
	       "Unexpected output from co: $_");
      }
      $_ = <RCS>;
      if (/^revision\s+$rev\s*$/) {
	# As expected
      } else {
	&fatal("500 Internal Error",
	       "Unexpected output from co: $_");
      }
      $| = 1;
      if ($gzip_output) {
	print "Content-type: text/plain\n";
	print "Content-encoding: x-gzip\n\n";
	open(GZIP, "|gzip -9 -c");
	print GZIP <RCS>;
	close(GZIP);
      }
      else {
	print "Content-type: text/plain\n\n";
	print <RCS>;
      }
      close(RCS);
      exit;
    }
    if (/r1=([^&:]+)(:([^&]+))?/) {
      $rev1 = $1;
      $sym1 = $3;
    }
    if ($rev1 eq 'text') {
      if (/tr1=([^&]+)/) {
	$rev1 = $1;
      }
    }
    if (/r2=([^&:]+)(:([^&]+))?/) {
      $rev2 = $1;
      $sym2 = $3;
    }
    if ($rev2 eq 'text') {
      if (/tr2=([^&]+)/) {
	$rev2 = $1;
      }
    }
    if (!($rev1 =~ /^[\d\.]+$/) || !($rev2 =~ /^[\d\.]+$/)) {
      &fatal("404 Not Found",
	     "Malformed query \"$ENV{'QUERY_STRING'}\"");
    }
    #
    # rev1 and rev2 are now both numeric revisions.
    # Thus we do a DWIM here and swap them if rev1 is after rev2.
    # XXX should we warn about the fact that we do this?
    if (&revcmp($rev1,$rev2) > 0) {
      ($tmp1, $tmp2) = ($rev1, $sym1);
      ($rev1, $sym1) = ($rev2, $sym2);
      ($rev2, $sym2) = ($tmp1, $tmp2);
    }
    #
    $difftype = "-u";
    $diffname = "Unidiff";
    if (/f=([^&]+)/) {
      if ($1 eq 'c') {
	$difftype = '-c';
	$diffname = "Context diff";
      }
    }
    # XXX should this just be text/plain
    # or should it have an HTML header and then a <pre>
    print "Content-type: text/plain\n\n";
    open(RCSDIFF, "rcsdiff $difftype -r$rev1 -r$rev2 '$fullname' 2>&1 |") ||
      &fail("500 Internal Error", "Couldn't rcsdiff: $!");
    #
    #===================================================================
    #RCS file: /home/ncvs/src/sys/netinet/tcp_output.c,v
    #retrieving revision 1.16
    #retrieving revision 1.17
    #diff -c -r1.16 -r1.17
    #*** /home/ncvs/src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
    #--- /home/ncvs/src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17
    #
    # Ideas:
    # - nuke the stderr output if it's what we expect it to be
    # - Add "no differences found" if the diff command supplied no output.
    #
    #*** src/sys/netinet/tcp_output.c     1995/11/03 22:08:08     1.16
    #--- src/sys/netinet/tcp_output.c     1995/12/05 17:46:35     1.17 RELENG_2_1_0
    # (bogus example, but...)
    #
    if ($difftype eq '-u') {
      $f1 = '---';
      $f2 = '\+\+\+';
    } else {
      $f1 = '\*\*\*';
      $f2 = '---';
    }
    while (<RCSDIFF>) {
      if (m|^$f1 $cvsroot|o) {
	s|$cvsroot/||o;
	if ($sym1) {
	  chop;
	  $_ .= " " . $sym1 . "\n";
	}
      } elsif (m|^$f2 $cvsroot|o) {
	s|$cvsroot/||o;
	if ($sym2) {
	  chop;
	  $_ .= " " . $sym2 . "\n";
	}
      }
      print $_;
    }
    close(RCSDIFF);
    exit;
  }
  open(RCS, "rlog '$fullname'|") || &fatal("500 Internal Error",
					   "Failed to popen() rlog");
  while (<RCS>) {
    print if ($verbose);
    if ($symnames) {
      if (/^\s+([^:]+):\s+([\d\.]+)/) {
	$symrev{$1} = $2;
	if ($revsym{$2}) {
	  $revsym{$2} .= ", ";
	}
	$revsym{$2} .= $1;
      } else {
	$symnames = 0;
      }
    } elsif (/^symbolic names/) {
      $symnames = 1;
    } elsif (/^-----/) {
      last;
    }
  }
  # each log entry is of the form:
  # ----------------------------
  # revision 3.7.1.1
  # date: 1995/11/29 22:15:52;  author: fenner;  state: Exp;  lines: +5 -3
  # log info
  # ----------------------------
 logentry:
  while (!/^=========/) {
    $_ = <RCS>;
    print "R:", $_ if ($verbose);
    if (/^revision ([\d\.]+)/) {
      $rev = $1;
    } elsif (/^========/ || /^----------------------------$/) {
      next logentry;
    } else {
      &fatal("500 Internal Error","Error parsing RCS output: $_");
    }
    $_ = <RCS>;
    print "D:", $_ if ($verbose);
    if (m|^date:\s+(\d+)/(\d+)/(\d+)\s+(\d+):(\d+):(\d+);\s+author:\s+(\S+);|) {
      $yr = $1;
      # damn 2-digit year routines
      if ($yr > 100) {
	$yr -= 1900;
      }
      $date{$rev} = &timelocal($6,$5,$4,$3,$2 - 1,$yr);
      $author{$rev} = $7;
    } else {
      &fatal("500 Internal Error", "Error parsing RCS output: $_");
    }
  line:
    while (<RCS>) {
      print "L:", $_ if ($verbose);
      next line if (/^branches:\s/);
      last line if (/^----------------------------$/ || /^=========/);
      $log{$rev} .= $_;
    }
    print "E:", $_ if ($verbose);
  }
  close(RCS);
  print "Done reading RCS file\n" if ($verbose);
  #
  # Sort the revisions into commit-date order.
  @revorder = sort {$date{$b} <=> $date{$a}} keys %date;
  print "Done sorting revisions\n" if ($verbose);
  #
  # HEAD is an artificial tag which is simply the highest tag number on the main
  # branch.  Find it by looking through @revorder; it should at least
  # be near the beginning (In fact, it *should* be the first commit listed on
  # the main branch.)
 revision:
  for ($i = 0; $i <= $#revorder; $i++) {
    if ($revorder[$i] =~ /^\d+\.\d+$/) {
      if ($revsym{$revorder[$i]}) {
	$revsym{$revorder[$i]} .= ", ";
      }
      $revsym{$revorder[$i]} .= "HEAD";
      $symrev{"HEAD"} = $revorder[$i];
      last revision;
    }
  }
  print "Done finding HEAD\n" if ($verbose);
  #
  # Now that we know all of the revision numbers, we can associate
  # absolute revision numbers with all of the symbolic names, and
  # pass them to the form so that the same association doesn't have
  # to be built then.
  #
  # should make this a case-insensitive sort
  foreach (sort keys %symrev) {
    $rev = $symrev{$_};
    if ($rev =~ /^(\d+(\.\d+)+)\.0\.(\d+)$/) {
      #
      # A revision number of A.B.0.D really translates into
      # "the highest current revision on branch A.B.D".
      #
      # If there is no branch A.B.D, then it translates into
      # the head A.B .
      #
      # This is pure speculation.
      #
      $head = $1;
      $branch = $3;
      $regex = $head . "." . $branch;
      $regex =~ s/\./\./g;
      #             <
      #           \____/
      $rev = $head;
      
    revision:
      foreach $r (@revorder) {
	if ($r =~ /^${regex}/) {
	$rev = $head . "." . $branch;
	last revision;
      }
    }
    $revsym{$rev} .= ", " if ($revsym{$rev});
    $revsym{$rev} .= $_;
  }
  $sel .= "<OPTION VALUE=\"${rev}:${_}\">$_\n";
}
print "Done associating revisions with branches\n" if ($verbose);
print "Content-type: text/html\n\n";
print "<HTML><HEAD><TITLE>CVS log for $where</TITLE></HEAD>\n";
if (defined($body)) {
  print $body;
} else {
  print "<BODY ";
  if (defined ($bgcolor)) {
    print "BGCOLOR=\"" . $bgcolor . "\" ";
  }
  if (defined ($background)) {
    print "BACKGROUND=\"" . $background . "\"";
  }
  print ">\n";
}
print "\n<!-- Generated by cvsweb-$cvsweb_version -->\n";
print "<H1 align=center>CVS log for $where</H1>\n";
($upwhere = $where) =~ s|[^/]+$||;
print "<b><a href=\"${scriptname}\">\ROOT/</a>";
$d = "";
foreach $s (split(?/?, $upwhere)) {
  $d = "$d/$s";
  print "<a href=\"${scriptname}${d}\">${s}/</a>";
}
print "</b><BR>\n";
print "<A HREF=\"#diff\">Request diff between arbitrary revisions</A>\n";
print "<HR>\n";
# The other possible U.I. I can see is to have each revision be hot
# and have the first one you click do ?r1=foo
# and since there's no r2 it keeps going & the next one you click
# adds ?r2=foo and performs the query.
# I suppose there's no reason we can't try both and see which one
# people prefer...

for ($i = 0; $i <= $#revorder; $i++) {
  $_ = $revorder[$i];
  #	    print "RCS revision <b>$_</b>\n";
  print "<A HREF=\"$scriptwhere?rev=$_\"><b>$_</b></A>";
  if (/^1\.1\.1\.\d+$/) {
    print " <i>(vendor branch)</i>";
  }
  #	    print "<BR>\n";
  #	    print "Checked in on <i>" . &ctime($date{$_}) . "</i> by ";
  #	    print "<i>" . $author{$_} . "</i><BR>\n";
  print " <i>" . &ctime($date{$_}) . "</i> by ";
  print "<i>" . $author{$_} . "</i>\n";
  if ($revsym{$_}) {
    #		print "CVS Tags: <b>$revsym{$_}</b><BR>\n";
    print "<BR>CVS Tags: <b>$revsym{$_}</b>";
  }
  if (($br = $_) =~ s/\.\d+$// && $revsym{$br})  {
    #		print "Branch: <b>$revsym{$br}</b><BR>\n";
    if ($revsym{$_}) {
      print "; ";
    } else {
      print "<BR>";
    }
    print "Branch: <b>$revsym{$br}</b>";
  }
  # Find the previous revision on this branch.
  @prevrev = split(/\./, $_);
  if (--$prevrev[$#prevrev] == 0) {
    # If it was X.Y.Z.1, just make it X.Y
    if ($#prevrev > 1) {
      pop(@prevrev);
      pop(@prevrev);
    } else {
      # It was rev 1.1 (XXX does CVS use revisions
      # greater than 1.x?)
      if ($prevrev[0] != 1) {
	print "<i>* I can't figure out the previous revision! *</i>\n";
      }
    }
  }
  if ($prevrev[$#prevrev] != 0) {
    $prev = join(".", @prevrev);
    print "<BR><A HREF=\"$scriptwhere?r1=$prev";
    print "&r2=$_\">Diffs to $prev</A>\n";
    #
    # Plus, if it's on a branch, and it's not a vendor branch,
    # offer to diff with the immediately-preceding commit if it
    # is not the previous revision as calculated above
    # and if it is on the HEAD (or at least on a higher branch)
    # (e.g. change gets committed and then brought
    # over to -stable)
    if (!/^1\.1\.1\.\d+$/ && ($i != $#revorder) &&
	($prev ne $revorder[$i+1])) {
      @tmp1 = split(/\./, $revorder[$i+1]);
      @tmp2 = split(/\./, $_);
      if ($#tmp1 < $#tmp2) {
	print "; <A HREF=\"$scriptwhere?r1=$revorder[$i+1]";
	print "&r2=$_\">Diffs to $revorder[$i+1]</A>\n";
      }
    }
  }
  #	    print "Log message:<BR>\n";
  print "<PRE>\n";
  print &htmlify($log{$_});
  print "</PRE><HR>\n";
}
print "<A NAME=diff>\n";
print "This form allows you to request diffs between any two\n";
print "revisions of a file.  You may select a symbolic revision\n";
print "name using the selection box or you may type in a numeric\n";
print "revision using the type-in text box.\n";
print "</A><P>\n";
print "<FORM METHOD=\"GET\" ACTION=\"$scriptwhere\">\n";
print "Diffs between \n";
print "<SELECT NAME=\"r1\">\n";
print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
print $sel;
print "</SELECT>\n";
print "<INPUT TYPE=\"TEXT\" NAME=\"tr1\" VALUE=\"$revorder[$#revorder]\">\n";
print " and \n";
print "<SELECT NAME=\"r2\">\n";
print "<OPTION VALUE=\"text\" SELECTED>Use Text Field\n";
print $sel;
print "</SELECT>\n";
print "<INPUT TYPE=\"TEXT\" NAME=\"tr2\" VALUE=\"$revorder[0]\">\n";
print "<BR><INPUT TYPE=RADIO NAME=\"f\" VALUE=u CHECKED>Unidiff<br>\n";
print "<INPUT TYPE=RADIO NAME=\"f\" VALUE=c>Context diff<br>\n";
print "<INPUT TYPE=SUBMIT VALUE=\"Get Diffs\">\n";
print "</FORM>\n";
print "<HR><ADDRESS>Created by cvsweb-$cvsweb_version</ADDRESS><BR>\n";
print $tailhtml,"\n";
print "</BODY></HTML>\n";
} else {
&fatal("404 Not Found","$where: no such file or directory");
}

sub htmlify {
  local($string) = @_;
  
  $string =~ s/&/&amp;/g;
  $string =~ s/</&lt;/g;
  $string =~ s/>/&gt;/g;
  
  $string;
}

sub link {
  local($name, $where) = @_;
  
  "<A HREF=\"$where\">$name</A>\n";
}

sub revcmp {
  local($rev1, $rev2) = @_;
  local(@r1) = split(/\./, $rev1);
  local(@r2) = split(/\./, $rev2);
  local($a,$b);
  
  while (($a = pop(@r1)) && ($b = pop(@r2))) {
    if ($a != $b) {
      return $a <=> $b;
    }
  }
  if (@r1) { return 1; }
  if (@r2) { return -1; }
  return 0;
}

sub fixpatch {
  # Correct the file locations according to the Index line.
  while (<>)
    {
      if (/^Index: (.*)/) 
	{
	  $full = $1;
	  ($small) = ($full =~ m=.*/([^\t]*)=);
	  print;
	  $small || next;
	  for (1..4) { $_ = <>; print; }
	  for (1..2)
	    {
	      $_ = <>;
	      s/$small/$full/;
	      print;
	    }
	}
      else
	{
	  print;
	}
    }
}

sub fatal {
  local($errcode, $errmsg) = @_;
  print "Status: $errcode\n";
  print "Content-type: text/html\n";
  print "\n";
  print "<HTML><HEAD><TITLE>Error</TITLE></HEAD>\n";
  print "<BODY>Error: $errmsg</BODY></HTML>\n";
  exit(1);
}
#
# Example set of environment variables passed to CGI script:
#
#HTTP_USER_AGENT: Mozilla/1.1N (X11; I; SunOS 4.1.3_U1 sun4m) via proxy gateway CERN-HTTPD/3.0 libwww/2.17
#SERVER_NAME: www.freebsd.org
#QUERY_STRING: baz
#SCRIPT_FILENAME: /usr/local/www/cgi-bin/env.pl
#SERVER_PORT: 80
#HTTP_ACCEPT: */*, image/gif, image/x-xbitmap, image/jpeg
#SERVER_PROTOCOL: HTTP/1.0
#HTTP_COOKIE: s=beta26429821397802167
#PATH_INFO: /foo/bar
#REMOTE_ADDR: 13.1.64.94
#DOCUMENT_ROOT: /usr/local/www/data/
#PATH: /sbin:/bin:/usr/sbin:/usr/bin
#PATH_TRANSLATED: /usr/local/www/data//foo/bar
#GATEWAY_INTERFACE: CGI/1.1
#REQUEST_METHOD: GET
#SCRIPT_NAME: /cgi-bin/env.pl
#SERVER_SOFTWARE: Apache/1.0.0
#REMOTE_HOST: beta.xerox.com
#SERVER_ADMIN: webmaster@freebsd.org
