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Diff for /doc/loncapafiles/webserver.piml between versions 1.10 and 1.58

version 1.10, 2002/05/13 09:07:05 version 1.58, 2023/05/02 01:45:48
Line 1 Line 1
 <!DOCTYPE piml PUBLIC "-//TUX/DTD piml 1.0 Final//EN"   <!DOCTYPE piml PUBLIC "-//TUX/DTD piml 1.0 Final//EN" 
  "http://lpml.sourceforge.net/DTD/piml.dtd">   "http://lpml.sourceforge.net/DTD/piml.dtd">
 <!-- webserver.piml -->  <!-- webserver.piml -->
 <!-- Scott Harrison -->  
   
 <!-- $Id$ -->  <!-- $Id$ -->
   
Line 46  http://www.lon-capa.org/ Line 45  http://www.lon-capa.org/
 <files>  <files>
 <file>  <file>
 <target dist='default'>/etc/httpd/conf/httpd.conf</target>  <target dist='default'>/etc/httpd/conf/httpd.conf</target>
 <note>This is always expected for any version of Apache</note>  <target dist='suse9.2 suse9.3 sles9'>/etc/httpd/httpd.conf</target>
   <target dist='sles10 sles11 sles12 sles15 suse10.1 suse10.2 suse10.3 suse11.1 suse11.2 suse11.3 suse11.4 suse12.1 suse12.2 suse12.3 suse13.1 suse13.2'>/etc/apache2/default-server.conf</target>
   <target dist='debian5 debian6 ubuntu6 ubuntu8 ubuntu10 ubuntu12'>/etc/apache2/sites-available/loncapa</target>
   <target dist='ubuntu14 ubuntu16 ubuntu18 ubuntu20 ubuntu22'>/etc/apache2/conf-available/loncapa.conf</target>
   <note>This is for Apache 1.X for Red Hat 4ES, Fedora 2, 3 and 4, SusSE 9.2 and 9.3, and SLES 9 distributions. This is for Apache 2.X for Fedora 5, Red Hat 5, CentOS 5, Scientific Linux 5, Oracle Linux 5, SuSE 10.1, SLES 10, Debian 5, Ubuntu LTS 8 and later distributions</note>
 <dependencies dist='default'>  <dependencies dist='default'>
 /etc/httpd/conf/httpd.conf  /etc/httpd/conf/httpd.conf
 </dependencies>  </dependencies>
 <perlscript mode='fg'>  <dependencies dist='suse9.2 suse9.3 sles9'>
   /etc/httpd/httpd.conf
   </dependencies>
   <dependencies dist='debian5 debian6 ubuntu6 ubuntu8 ubuntu10 ubuntu12'>
   /etc/apache2/sites-available/loncapa
   </dependencies>
   <dependencies dist='ubuntu14 ubuntu16 ubuntu18 ubuntu20 ubuntu22'>
   /etc/apache2/conf-available/loncapa.conf
   </dependencies>
   <dependencies dist='sles10 sles11 sles12 sles15 suse10.1 suse10.2 suse10.3 suse11.1 suse11.2 suse11.3 suse11.4 suse12.1 suse12.2 suse12.3 suse13.1 suse13.2'>
   /etc/apache2/default-server.conf
   </dependencies>
   <perlscript mode='fg' dist="default">
   # Generated from doc/loncapafiles/webserver.piml
   use Socket;
   use Sys::Hostname::FQDN();
   use File::Spec;
   use Cwd();
   
   # For ubuntu 14 and later check for loncapa.conf in sites-available,
   # and conf-available, and for symlinks in sites-enabled, and conf-enabled
   if ('<DIST />' =~ /^ubuntu(\d+)$/) {
       my $version = $1;
       if ($version &gt; 12) {
           if (-l '/etc/apache2/conf-enabled/loncapa.conf') {
               my $linkfname = readlink('/etc/apache2/conf-enabled/loncapa.conf');
               if ($linkfname ne '') {
                   $linkfname = Cwd::abs_path(File::Spec->rel2abs($linkfname,'/etc/apache2/conf-enabled'));
               }
               unless ($linkfname eq '/etc/apache2/conf-available/loncapa.conf') {
                   unlink('/etc/apache2/conf-enabled/loncapa.conf');
               }
           }
           if (-e '/etc/apache2/conf-available/loncapa') {
               system('mv /etc/apache2/conf-available/loncapa /etc/apache2/conf-available/loncapa.conf');
           }
           unless (-l '/etc/apache2/conf-enabled/loncapa.conf') {
               if (-e '/etc/apache2/conf-available/loncapa.conf') {
                   my $currdir = Cwd::getcwd();
                   if ($currdir ne '') {
                       chdir('/etc/apache2/conf-enabled');
                       symlink('../conf-available/loncapa.conf','loncapa.conf');
                       chdir($currdir);
                   }
               }
           }
           if (-l '/etc/apache2/sites-enabled/000-default.conf') {
               my $linkfname = readlink('/etc/apache2/sites-enabled/000-default.conf');
               if ($linkfname ne '') {
                   $linkfname = Cwd::abs_path(File::Spec->rel2abs($linkfname,'/etc/apache2/sites-enabled'));
               }
               if (($linkfname eq '/etc/apache2/sites-available/loncapa') ||
                   ($linkfname eq '/etc/apache2/sites-available/000-default.conf')) {
                   unlink('/etc/apache2/sites-enabled/000-default.conf');
               }
           }
           if (-e '/etc/apache2/sites-available/loncapa') {
               system('mv /etc/apache2/sites-available/loncapa /etc/apache2/sites-available/loncapa.conf');
           }
           if (-l '/etc/apache2/sites-enabled/loncapa.conf') {
               my $linkfname = readlink('/etc/apache2/sites-enabled/loncapa.conf');
               if ($linkfname ne '') {
                   $linkfname = Cwd::abs_path(File::Spec->rel2abs($linkfname,'/etc/apache2/sites-enabled'));
               }
               unless ($linkfname eq '/etc/apache2/sites-available/loncapa.conf') {
                   unlink('/etc/apache2/sites-enabled/loncapa.conf');
               }
           }
           unless (-l '/etc/apache2/sites-enabled/loncapa.conf') {
               if (-e '/etc/apache2/sites-available/loncapa.conf') {
                   my $currdir = Cwd::getcwd();
                   if ($currdir ne '') {
                       chdir('/etc/apache2/sites-enabled');
                       symlink('../sites-available/loncapa.conf','loncapa.conf');
                       chdir($currdir);
                   }
               }
           }
       }
   }
   
 unless (-e "<TARGET />") {  unless (-e "<TARGET />") {
  print 'ERROR! httpd.conf should exist! Are you missing the Apache '.    print '**** ERROR! <TARGET /> should exist! Are you missing the Apache '.
  'software package';      'software package?';
     exit(1);
 }  }
 else {  else {
     # Append loncapa_apache.conf inclusion to httpd.conf 
     # (or sites-available/loncapa or conf-available/loncapa.conf) if not present.
   $flag=0;    $flag=0;
   open IN, "&lt;<TARGET />";    open(IN,'&lt;<TARGET />');
   while (&lt;IN&gt;) { if (/^\s*Include\s+conf\/srm.conf/) { $flag=1; } }  
   close IN;  
   unless ($flag==1) {  
  open OUT,"&gt;&gt;<TARGET />";  
  print OUT 'Include conf/srm.conf'."\n";  
  close OUT;  
   }  
   $flag=0;  
   open IN, "&lt;<TARGET />";  
   while (&lt;IN&gt;) { if (/^\s*Include\s+conf\/access.conf/) { $flag=1; } }  
   close IN;  
   unless ($flag==1) {  
  open OUT,"&gt;&gt;<TARGET />";  
  print OUT 'Include conf/access.conf'."\n";  
  close OUT;  
   }  
   my $eflag=0;  
   $flag=0;  
   open IN, "&lt;<TARGET />";  
   while (&lt;IN&gt;) {     while (&lt;IN&gt;) { 
     if (/^\s*Include\s+conf\/loncapa_apache.conf/) {      if (/^\s*Include\s+conf\/loncapa_apache.conf/) {
       $flag=1;         $flag=1; 
     }      }
   }    }
   close IN;    close(IN);
   unless ($flag==1) {    unless ($flag==1) {
  open OUT,"&gt;&gt;<TARGET />";      open(OUT,'&gt;&gt;<TARGET />');
  print OUT 'Include conf/loncapa_apache.conf'."\n";      print(OUT 'Include conf/loncapa_apache.conf'."\n");
  close OUT;      close(OUT);
   }    }
     # Remove loncapa.conf inclusion from httpd.conf 
     # (or sites-available/loncapa or conf-available/loncapa.conf) if present.
   $flag=0;    $flag=0;
   open IN, "&lt;<TARGET />";    open(IN,'&lt;<TARGET />');
   while (&lt;IN&gt;) {     while (&lt;IN&gt;) {
     if (/^\s*Include\s+conf\/loncapa.conf/) {      if (/^\s*Include\s+conf\/loncapa.conf/) {
       $flag=1;         $flag=1;
     }      }
   }    }
   close IN;    close(IN);
   unless ($flag==1) {    $in='';
  open OUT,"&gt;&gt;<TARGET />";    if ($flag==1) {
  print OUT 'Include conf/loncapa.conf'."\n";      open(IN,'&lt;<TARGET />');
  close OUT;      while(&lt;IN&gt;) {
         $in.=$_ unless /^\s*Include\s+conf\/loncapa.conf/;
       }
       close(IN);
       open(OUT,'&gt;<TARGET />');
       print(OUT $in."\n");
       close(OUT);
   }    }
 }  
 </perlscript>  # Checking for overlapping ScriptAlias and DocumentRoot definitions.
 </file>    $scriptalias_flag=0;
 <file>    $documentroot_flag=0;
 <target dist='default'>/etc/httpd/conf/access.conf</target>    my $scriptalias;
 <note>This may or may not exist on a system depending on the version of    my $documentroot;
 Apache</note>    open(IN,'&lt;<TARGET />');
 <dependencies dist='default'>    while (&lt;IN&gt;) {
 /etc/httpd/conf/access.conf      if (m!^\s*ScriptAlias\s+/cgi-bin/\s+(.*)$!) {
 </dependencies>        $scriptalias = $1;
 <perlscript mode='fg'>        if ($scriptalias !~ m!home/httpd/cgi-bin!) {
 unless (-e "<TARGET />") {          $scriptalias_flag = 1;
  print &lt;&lt;END;        }
 WARNING! access.conf is not currently present on your system.      }
 This is either due to       if (m!^\s*DocumentRoot\s+(.*)$!) {
 * you are missing the Apache software package,        $documentroot = $1;
 * you have a newer version of Apache that does not        if ($documentroot !~ m!home/httpd/html!) {
   ordinarily install an access.conf          $documentroot_flag = 1;
 * configuration files are installed in a directory location        }
   different than for <TARGET />      }
 For backwards compatibility,    }
 <TARGET /> is being generated.    close(IN);
 END    if ($scriptalias_flag==1) {
 }        my $conffile = '/etc/httpd/conf/httpd.conf';
 my $flag=0;        if ('<DIST />' eq 'suse9.2' || '<DIST />' eq 'suse9.3' 
 open IN, "&lt;<TARGET />";            || '<DIST />' eq 'sles9') {
 while (&lt;IN&gt;) { if (/^\s*Include\s+conf\/loncapa_apache.conf/)            $conffile =  '/etc/httpd/httpd.conf';
  { $flag=1; } }        } elsif ('<DIST />' =~ /^(suse|sles)/) {
 close IN;            $conffile = '/etc/apache2/default-server.conf';
 unless ($flag==1) {        } elsif ('<DIST />' =~ /^(debian|ubuntu)/) {
 open OUT,"&gt;&gt;<TARGET />";            $conffile = '/etc/apache2/sites-available/loncapa';
 print OUT 'Include conf/loncapa_apache.conf'."\n";            if ('<DIST />' =~ /^ubuntu(\d+)$/) {
 close OUT;                my $version = $1;
 }                if ($version &gt; 12) {
 $flag=0;                    $conffile = '/etc/apache2/conf-available/loncapa.conf';
 open IN, "&lt;<TARGET />";                }
 while (&lt;IN&gt;) { if (/^\s*Include\s+conf\/loncapa.conf/) { $flag=1; } }            }
 close IN;        }
 unless ($flag==1) {        print('**** ERROR **** '.$conffile.' has an overlapping definition of '.
 open OUT,"&gt;&gt;<TARGET />";              'ScriptAlias (it is incorrectly set to '.$scriptalias.').'."\n".
 print OUT 'Include conf/loncapa.conf'."\n";              'This conflicts with loncapa_apache.conf.'."\n");
 close OUT;    }
 }    if ($documentroot_flag==1) {
 </perlscript>        print('**** ERROR **** '.$conffile.' has an overlapping definition of '.
 </file>              'DocumentRoot (it is incorrectly set to '.$documentroot.').'."\n".
 <file>              'This conflicts with loncapa_apache.conf.'."\n");
 <target dist='default'>/etc/httpd/conf/srm.conf</target>    }
 <note>This may or may not exist on a system depending on the version of  
 Apache</note>  # Checking for rewrites of http:// to https://
 <dependencies dist='default'>      my $rewrite_dir = '/etc/httpd/conf/rewrites';
 /etc/httpd/conf/srm.conf      my $curr_rewrite = '/etc/httpd/conf/loncapa_rewrite.conf';
 </dependencies>      if ('<DIST />' eq 'suse9.2' || '<DIST />' eq 'suse9.3'
 <perlscript mode='fg'>          || '<DIST />' eq 'sles9') {
 unless (-e "<TARGET />") {          $rewrite_dir = '/etc/httpd/rewrites/';
  print &lt;&lt;END;          $curr_rewrite = '/etc/httpd/loncapa_rewrite.conf';
 WARNING! srm.conf is not currently present on your system.      } elsif ('<DIST />' =~ /^(suse|sles|debian|ubuntu)/) {
 This is either due to           $rewrite_dir = '/etc/apache2/rewrites';
 * you are missing the Apache software package,          $curr_rewrite = '/etc/apache2/loncapa_rewrite.conf';
 * you have a newer version of Apache that does not      }
   ordinarily install an srm.conf      my $rewrite_off = $rewrite_dir.'/loncapa_rewrite_off.conf';
 * configuration files are installed in a directory location      my $rewrite_on = $rewrite_dir.'/loncapa_rewrite_on.conf';
   different than for <TARGET />      if (!-e $curr_rewrite) { 
 For backwards compatibility,          system("cp $rewrite_off $curr_rewrite");
 <TARGET /> is being generated.          chmod(0644, $curr_rewrite);
 END      } else {
 }          my ($not_rewrite_on,$not_rewrite_off,$rewrite_state);
 my $flag=0;          if (open(PIPE, "diff --brief $rewrite_off $curr_rewrite |")) {
 open IN, "&lt;<TARGET />";              my $diffres = &lt;PIPE&gt; ;
 while (&lt;IN&gt;) { if (/^\s*Include\s+conf\/loncapa_apache.conf/)              close(PIPE);
  { $flag=1; } }              chomp($diffres);
 close IN;              if ($diffres) {
 unless ($flag==1) {                  $not_rewrite_off = 1;
 open OUT,"&gt;&gt;<TARGET />";              } else {
 print OUT 'Include conf/loncapa_apache.conf'."\n";                  $rewrite_state = 'off';
 close OUT;              }
 }          }
 $flag=0;          if (open(PIPE, "diff --brief $rewrite_on $curr_rewrite |")) {
 open IN, "&lt;<TARGET />";              my $diffres = &lt;PIPE&gt; ;
 while (&lt;IN&gt;) { if (/^\s*Include\s+conf\/loncapa.conf/) { $flag=1; } }              close(PIPE);
 close IN;              chomp($diffres);
 unless ($flag==1) {              if ($diffres) {
 open OUT,"&gt;&gt;<TARGET />";                  $not_rewrite_on = 1;
 print OUT 'Include conf/loncapa.conf'."\n";              } else {
 close OUT;                  $rewrite_state = 'on';
               }
           }
           if ($not_rewrite_off && $not_rewrite_on) {
               print('**** WARNING **** '."\n".$curr_rewrite.' does not match '.
               'either:'."\n".$rewrite_on.' - the file used to enable rewriting '.
               'of requests for http:// to https:// '."\n".'or:'."\n".$rewrite_off.
               ' - the file used to disable such rewriting'."\n\n".
               'This may be because '. $curr_rewrite.' has been '. 
               'previously customized,'."\n".'or it may be because of a change '.  
               'to the files in '.$rewrite_dir."\n");
               if (open(my $fh,'&lt;',$curr_rewrite)) {
                   while(&lt;$fh&gt;) {
                       if (/^\s*RewriteEngine\s+(on|off)\s*$/i) {
                           if ($1 eq 'on') {
                               $rewrite_state = 'on';
                           } else {
                               $rewrite_state = 'off';
                           }
                           last;
                       }
                   }
               }
           }
           if ($rewrite_state eq 'on') {
           # Checking for rewrites of https:// to http://
               my ($gotrules,$rulestr,$ssldir);
               if ('<DIST />' eq 'suse9.2' || '<DIST />' eq 'suse9.3'
                   || '<DIST />' eq 'sles9') {
                   $ssldir = '/etc/apache/vhosts.d';
               } elsif ('<DIST />' =~ /^(suse|sles)/) {
                   $ssldir = '/etc/apache2/vhosts.d';
               } elsif ('<DIST />' =~ /^(debian|ubuntu)/) {
                   $ssldir = '/etc/apache2/sites-available';
               } else {
                   $ssldir = '/etc/httpd/conf.d';
               }
               my $hostname = Sys::Hostname::FQDN::fqdn();
               my $hostip = Socket::inet_ntoa(scalar(gethostbyname($hostname)) || 'localhost');
               my @expected = ('RewriteEngine on',
                               'RewriteCond %{HTTPS} =on',
                               'RewriteCond %{REQUEST_URI} ^/adm/wrapper/ext/(?!https:)',
                               'RewriteCond %{QUERY_STRING} (^|&(|amp;))usehttp=1($|&)',
                               'RewriteRule ^/adm/wrapper/ext/(?!https:) http://%{HTTP_HOST}%{REQUEST_URI} [R,L,NE]',
                               'RewriteCond %{REMOTE_ADDR} 127.0.0.1',
                               'RewriteRule (.*) - [L]');
               if (($hostip ne '') && ($hostip ne '127.0.0.1')) {
                   push(@expected,('RewriteCond %{REMOTE_ADDR} '.$hostip,
                                   'RewriteRule (.*) - [L]'));
               }
               push(@expected,('RewriteCond %{REQUEST_URI} ^/public/.*/syllabus$',
                               'RewriteCond %{QUERY_STRING} (^|&(|amp;))usehttp=1($|&)',
                               'RewriteRule ^/public/.*/syllabus$ http://%{HTTP_HOST}%{REQUEST_URI} [R,L,NE]'));
               if (-d $ssldir) {
                   my @rewrites;
                   if (opendir(my $dir,$ssldir)) {
                       my @sslconf_files;
                       foreach my $file (grep(!/^\./,readdir($dir))) {
                           next if ($file =~ /\.rpmnew$/);
                           if (open(my $fh,'&lt;',"$ssldir/$file")) {
                               while (&lt;$fh&gt;) {
                                   if (/^\s*&lt;VirtualHost\s+[^:]*\:443&gt;\s*$/) {
                                       push(@sslconf_files,$file);
                                       last;
                                   }
                               }
                               close($fh);
                           }
                       }
                       if (@sslconf_files) {
                           foreach my $file (@sslconf_files) {
                               if (open(my $fh,'&lt;',"$ssldir/$file")) {
                                   my ($rewrite,$num) = (0,0);
                                   while (&lt;$fh&gt;) {
                                       if ($rewrite) {
                                           if (/^\s*&lt;\/IfModule&gt;/) {
                                               $rewrite = 0;
                                               $num ++;
                                           } else {
                                               chomp();
                                               s/^\s+|\s+$//g;
                                               push(@{$rewrites[$num]},$_);
                                           }
                                       } elsif (/^\s*&lt;IfModule\s+mod_rewrite.c&gt;/) {
                                           $rewrite = 1;
                                       }
                                   }
                                   close($fh);
                               }
                           }
                       }
                       closedir($dir);
                   }
                   if (@rewrites) {
                       foreach my $item (@rewrites) {
                           if (ref($item) eq 'ARRAY') {
                               my $found = 0;
                               foreach my $line (@{$item}) {
                                   foreach my $match (@expected) {
                                       if ($match eq $line) {
                                           $found ++;
                                           last;
                                       }
                                   }
                               }
                               if ($found &gt;= scalar(@expected)) {
                                   $gotrules = 1;
                                   last;
                               }
                           }
                       }
                   }
               }
               unless ($gotrules) {
                   print('**** WARNING **** '."\n".$curr_rewrite.' is currently set so rewrites '.
                         'of http to https are enabled for most URLs.'."\n".
                         'Unless your Apache configuration includes Strict-Transport-Security '.
                         '(with max-age > 0), it is recommended to also set rewrites from https to http '.
                         'for specific URLs in a file in '.$ssldir.' by including the following:'."\n".
                         "&lt;IfModule mod_rewrite.c&gt;\n".'  '.
                         join("\n  ",@expected)."\n".
                         "&lt;/IfModule&gt;\n");
               }
           }
       }
 }  }
 </perlscript>  </perlscript>
 </file>  </file>
Removed from v.1.10  
changed lines
  Added in v.1.58

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