[BACK]Return to takeoffline.pl CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / cgi

Diff for /loncom/cgi/takeoffline.pl between versions 1.4 and 1.8

version 1.4, 2008/12/25 01:56:03 version 1.8, 2015/01/21 15:12:03
Line 30  $|=1; Line 30  $|=1;
 use strict;  use strict;
 use lib '/home/httpd/lib/perl/';  use lib '/home/httpd/lib/perl/';
 use Apache::lonlocal;  use Apache::lonlocal;
   use Apache::loncommon;
   use Apache::lonnet;
 use LONCAPA::loncgi;  use LONCAPA::loncgi;
 use LONCAPA::lonauthcgi;  use LONCAPA::lonauthcgi;
   
Line 51  sub main { Line 53  sub main {
             return;              return;
         }          }
     }      }
   
     &Apache::lonlocal::get_language_handle();      &Apache::lonlocal::get_language_handle();
   
     print '<html><body bgcolor="#FFFFFF"><h1>'.&Apache::lonlocal::mt('Take Offline').'</h1>';      if ($ENV{'QUERY_STRING'} =~ /^phase\=two\&?(.*)$/) {
     my $statusmsg;          my $reroute = $1;
           print &Apache::loncommon::start_page('Take Offline');
           &phasetwo($reroute);
       } else {
           my $js = <<ENDJS;
   <script type="text/javascript">
   // <![CDATA[
   
   function setphase(form) {
       var subaction = '/cgi-bin/takeoffline.pl?phase=two';
       form.action = subaction+'&'+form.rerouteto.options[form.rerouteto.selectedIndex].value;
       form.submit();
   }
   
   // ]]>
   </script>
   ENDJS
           print &Apache::loncommon::start_page('Take Offline',$js);
           &phaseone();
       }
       print &Apache::loncommon::end_page();
       return;
   }
   
   sub phaseone {
       print '<h2>'.&Apache::lonlocal::mt('Take Offline').'</h2>';
       my ($is_dc,@okmachines,%servers);
       my @poss_domains = &Apache::lonnet::current_machine_domains();
       foreach my $dom (@poss_domains) {
           if ($Apache::lonnet::env{'request.role'} eq "dc./$dom/") {
               $is_dc = 1;
           }
           my %domconfig = &Apache::lonnet::get_dom('configuration',['serverstatuses'],$dom);
           if (ref($domconfig{'serverstatuses'}) eq 'HASH') {
               if (ref($domconfig{'serverstatuses'}{'takeonline'}) eq 'HASH') {
                   if ($domconfig{'serverstatuses'}{'takeonline'}{'machines'} ne '') {
                       @okmachines = split(/,/,$domconfig{'serverstatuses'}{'takeonline'}{'machines'});
                   }
               }
           }
           %{$servers{$dom}} = &Apache::lonnet::get_servers($dom);
       }
       my $ip = $ENV{'REMOTE_ADDR'};
       my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};
       print '<p>'.&mt("When a LON-CAPA server is 'taken offline' using this utility, the standard log-in page will be replaced with one of the following:").'</p>'.
             '<ul><li>'.&mt('A page which automatically performs a redirect to another server in your domain - the server must be specified below.').'</li>'.
                 '<li>'.&mt('A page which announces that this LON-CAPA server is offline.').'</li></ul>';
       print '<p>'.&mt("Once a server is offline, the [_1]'take online'[_2] utility can be used to reverse this, but you should verify that you will still be able to access that script once the server is in an offline state.",'<a href="/cgi-bin/takeonline.pl">','</a>').'</p>';
       print '<p>'.&mt("In common with other Domain Status pages the 'take online' script is accessible from certain IP addresses:").'</p><ul>'.
             '<li>'.&mt('The loopback device - 127.0.0.1 (localhost) - for times when you are web browsing from the server itself.').'</li>'.
             '<li>'.&mt("Specified IP addresses set via the configuration for [_1]Access to Server Status Pages[_2] for domain(s) hosted on the server.",'<a href="/adm/domainprefs?phase=display&amp;actions=serverstatuses">','</a>').'</li></ul><p>'.
             &mt("Once the server is offline you will not be able to log-in directly to select a Domain Coordinator role to use the 'Take online' script, unless IP-based controls provide your access.").'<br />'.&mt("However, you will be able to log-in to a different server in the LON-CAPA network, select a Domain Coordinator role in this server's domain, and then use: [_1] to migrate you session to this machine.","<br /><tt>/adm/switchserver?otherserver=$lonhost</tt>").'<br /></p><hr />';
       if ($ip eq '127.0.0.1') {
           print '<div class="LC_info">'.&mt('You are accessing this page from the loopback device.').'</div>';
       } elsif (!@okmachines) {
           print '<div class="LC_warning">'.&mt("IP-based access to the 'take online' page is currently unavailable, as no IP addresses have been specified.").'</div>';
       } elsif (!grep(/^\Q$ip\E$/,@okmachines)) {
           print '<div class="LC_warning">'.&mt("Your current IP [_1] is not among those configured to have IP-based access to the 'take online' utility.",$ip).'</div>';
       } else {
           print '<div class="LC_info">'.&mt("Your current IP [_1] is configured to have IP-based access to the 'take online' utility.",$ip).'</div>';
       }
       my (%allhosts,$otherserver,$domain);
     if ($ENV{'QUERY_STRING'}) {      if ($ENV{'QUERY_STRING'}) {
         my ($otherserver,$domain)=split(/\&/,$ENV{'QUERY_STRING'});          ($otherserver,$domain)=split(/\&/,$ENV{'QUERY_STRING'});
         if (&reroute($otherserver,$domain)) {      }
             print &Apache::lonlocal::mt('Rerouting to [_1]',$otherserver);      print '<hr /><form method="post" name="takeoffline" onsubmit="javascript:setphase(this);" action="">';
   
       my $options;
       if ($domain) {
           if (grep(/^\Q$domain\E$/,keys(%servers))) {
               if (ref($servers{$domain}) eq 'HASH') {
                   foreach my $hostid (sort(keys(%{$servers{$domain}}))) {
                       next if ($hostid eq $lonhost);
                       my $selchk = '';
                       if ($otherserver eq $hostid) {
                           $selchk = ' selected="selected"';
                       }
                       $options .=
                           "<option value=\"$hostid&amp;$domain\"$selchk>$servers{$domain}{$hostid}</option>\n";
                   }
               }
           }
       }
       foreach my $dom (sort(keys(%servers))) {
           next if (($domain) && ($dom eq $domain));
           if (ref($servers{$dom}) eq 'HASH') {
               foreach my $hostid (sort(keys(%{$servers{$dom}}))) {
                   next if ($hostid eq $lonhost);
                   next if(defined($allhosts{$hostid}));
                   $allhosts{$hostid} = 1;
                   my $selchk = '';
                   if ($otherserver eq $hostid) {
                       $selchk = ' selected="selected"';
                   }
                   $options .=
                       "<option value=\"$hostid&amp;$dom\"$selchk>$servers{$dom}{$hostid}</option>\n";
               }
           }
       }
       if ($options) {
           print &mt('Optional: choose another server in your domain, to which to redirect log-ins: ').
                 '<select name="rerouteto">'."\n".
                 ' <option value="">'.&mt('Please select').'</option>'."\n".
                 $options.'</select>'."\n";
       } else {
           print &mt('There are no other servers in your domain to which to redirect logins.');
       }
       print '<br /><br /><input type="submit" name="offline" value="Take Offline" />'."\n".
             '</form>'."\n";
   }
   
   sub phasetwo {
       my ($reroute) = @_;
       print '<h2>'.&Apache::lonlocal::mt('Take Offline').'</h2>';
       my $statusmsg;
       if ($reroute ne '') {
           my ($otherserver,$domain)=split(/\&/,$reroute);
           my $otherhostname = &reroute($otherserver,$domain);
           if ($otherhostname ne '') {
               print &Apache::lonlocal::mt('Rerouting to [_1]',$otherhostname);
             $statusmsg = "status=rerouting&server=$otherserver&domain=$domain&time=".time.              $statusmsg = "status=rerouting&server=$otherserver&domain=$domain&time=".time.
                          "by=$Apache::lonnet::env{'user.name'}:$Apache::lonnet::env{'user.domain'}";                           "by=$Apache::lonnet::env{'user.name'}:$Apache::lonnet::env{'user.domain'}";
         }          }
Line 69  sub main { Line 185  sub main {
             $statusmsg = 'status=offline&time='.time."by=$Apache::lonnet::env{'user.name'}:$Apache::lonnet::env{'user.domain'}"              $statusmsg = 'status=offline&time='.time."by=$Apache::lonnet::env{'user.name'}:$Apache::lonnet::env{'user.domain'}"
         }          }
     }      }
     print "</body></html>";  
     if ($statusmsg) {      if ($statusmsg) {
         if (open (STATUS,'>/home/httpd/html/lon-status/reroute.txt')) {          if (open (STATUS,'>/home/httpd/html/lon-status/reroute.txt')) {
             print STATUS "$statusmsg\n";              print STATUS "$statusmsg\n";
             close(STATUS);              close(STATUS);
         } else {          } else {
             print &Apache::lonlocal::mt('Logging of status change to [_1] failed.','reroute.txt');               print &Apache::lonlocal::mt('Logging of status change to [_1] failed.','<tt>/home/httpd/html/lon-status/reroute.txt</tt>'); 
         }          }
     }      }
 }  }
Line 91  sub dead { Line 206  sub dead {
   
 sub reroute {  sub reroute {
     my ($otherserver,$domain) = @_;      my ($otherserver,$domain) = @_;
     if (open (OUT,'>/home/httpd/html/index.html')) {      my $otherhostname = &Apache::lonnet::hostname($otherserver);
         print OUT (<<ENDNEWINDEX);      my $protocol = $Apache::lonnet::protocol{$otherserver};
 <html>      $protocol = 'http' if ($protocol ne 'https');
       if ($otherhostname ne '') {
           if (open (OUT,'>/home/httpd/html/index.html')) {
               print OUT (<<ENDNEWINDEX);
   <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
   <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>   <head>
   <title>Welcome to the LearningOnline Network with CAPA</title>    <title>Welcome to the LearningOnline Network with CAPA</title>
   <meta HTTP-EQUIV="Refresh" CONTENT="0.5; url=http://$otherserver/adm/login?domain=$domain">    <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
     <meta http-equiv="refresh" content="0.5; url=$protocol://$otherhostname/adm/login?domain=$domain">
     <meta http-equiv="pragma" content="no-cache" />
  </head>   </head>
  <body bgcolor="#004400" topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>   <body style="background-color:#004400; margin: 0px;">
   <img src="/adm/lonIcons/header.gif" />    <img src="/adm/lonIcons/header.gif" alt="loncapa banner" />
 <p><font color="#FFFFFF">Connecting to  <p style="color:#ffffff">Connecting to 
 <a href="http://$otherserver/adm/login?domain=$domain"><font color="#FFFFFF">http://$otherserver/</font></a></font></p>  <a href="$protocol://$otherhostname/adm/login?domain=$domain" style="color:#ffffff">$protocol://$otherhostname/</a></p>
 </body>  </body>
 </html>  </html>
 ENDNEWINDEX  ENDNEWINDEX
        close(OUT);             close(OUT);
        return 'ok';             return $otherhostname;
           }
     }      }
     return;      return;
 }  }
Removed from v.1.4  
changed lines
  Added in v.1.8

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>