File:  [LON-CAPA] / doc / loncapafiles / updatequery.piml
Revision 1.83: download - view: text, annotated - select for diffs
Fri Jul 29 17:26:44 2016 UTC (7 years, 9 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD
- Wording changes.
- Consistency

    1: <!-- updatequery.piml -->
    2: 
    3: <!-- $Id: updatequery.piml,v 1.83 2016/07/29 17:26:44 raeburn Exp $ -->
    4: 
    5: <!--
    6: 
    7: This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    8: 
    9: LON-CAPA is free software; you can redistribute it and/or modify
   10: it under the terms of the GNU General Public License as published by
   11: the Free Software Foundation; either version 2 of the License, or
   12: (at your option) any later version.
   13: 
   14: LON-CAPA is distributed in the hope that it will be useful,
   15: but WITHOUT ANY WARRANTY; without even the implied warranty of
   16: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   17: GNU General Public License for more details.
   18: 
   19: You should have received a copy of the GNU General Public License
   20: along with LON-CAPA; if not, write to the Free Software
   21: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   22: 
   23: /home/httpd/html/adm/gpl.txt
   24: 
   25: http://www.lon-capa.org/
   26: 
   27: -->
   28: 
   29: <piml>
   30: <targetroot>/</targetroot>
   31: <files>
   32: <file>
   33: <target dist='default'>/</target>
   34: <perlscript mode='fg'>
   35: $|=1;
   36:   use strict;
   37:   print(&lt;&lt;END);
   38: 
   39: 
   40: *********************************************
   41: *********************************************
   42: ****                                     ****
   43: **** LON-CAPA SYSTEM INFORMATION REQUEST ****
   44: ****                                     ****
   45: **** Please respond to the choices below ****
   46: ****                                     ****
   47: *********************************************
   48: *********************************************
   49: 
   50: END
   51: #sleep(3);
   52: </perlscript>
   53: </file>
   54: <file>
   55: <target dist='default'>loncom/hosts.tab</target>
   56: <perlscript mode='fg'>
   57: my $lonCluster;
   58: unless (-l "<TARGET />") {
   59:   print(&lt;&lt;END);
   60: 
   61: ===============================================================================
   62: Which cluster option would you like to have installed?
   63: IMPORTANT: to take advantage of the cluster options 1) and 3),
   64: you must contact loncapa\@loncapa.org.
   65: 
   66: 1) PRODUCTION - you want to eventually connect this machine to the
   67:                 LON-CAPA content sharing network. This setting is for
   68:                 schools, colleges, and universities, that currently
   69:                 are running - or in the future will run - courses.
   70: 2) STAND-ALONE - you want this machine to run in 'stand-alone' mode and
   71:                  not be connected to other LON-CAPA machines for now.
   72: 3) DEVELOPMENT - you want to do software (not content!) development with
   73:                  this workstation and eventually link it with the
   74:                  workstations of other LON-CAPA software developers.
   75: 4) RUNNING YOUR OWN CLUSTER - this machine is not in the standard LON-CAPA
   76:                  clusters and won't be in the future and you want the existing
   77:                  hosts.tab and domain.tab files to be left alone.
   78:                  (This choice is unlikely what you want to select.)
   79: END
   80: # Option number 26 will install rawhide_hosts.tab, but
   81: # the typical user does not want to be part of an intensive
   82: # machine test cluster.
   83: 
   84: # get input
   85: # if valid then process, otherwise loop
   86: my $flag=0;
   87: while (!$flag) {
   88:   print "ENTER 1, 2, 3, or 4:\n";
   89:   my $choice=&lt;&gt;;
   90:   chomp($choice);
   91:   if ($choice==1) {
   92:     $lonCluster='production'; $flag=1;
   93:   }
   94:   elsif ($choice==2) {
   95:     $lonCluster='standalone'; $flag=1;
   96:   }
   97:   elsif ($choice==3) {
   98:     $lonCluster='development'; $flag=1;
   99:   }
  100:   elsif ($choice==4) {
  101:     $lonCluster='existing'; $flag=1;
  102:     foreach my $file ('hosts.tab','dns_hosts.tab',
  103:                       'domain.tab','dns_domain.tab') {
  104:         if (-e '/home/httpd/lonTabs/'.$file) {
  105: 	    `cp /home/httpd/lonTabs/$file ../existing_$file`;
  106:         }
  107:         else {
  108: 	    print &lt;&lt;END;
  109: There is no existing /home/httpd/lonTabs/$file
  110: END
  111:             die('');
  112:         }
  113:     }
  114:   }
  115:   elsif ($choice==26) {
  116:     $lonCluster='rawhide'; $flag=1;
  117:   }
  118: }
  119: }
  120: </perlscript>
  121: </file>
  122: <file>
  123: <target dist='default'>/home/httpd/lonTabs/hosts.tab</target>
  124: <perlscript mode='fg'>
  125: $|=1;
  126: my $domainDescription;
  127: my $domainTabExtras;
  128: my $primaryLibServer;
  129: my $protocol;
  130: my $intdom;
  131: my @libservers = ();
  132: unless (-e "<TARGET />") {
  133:   print(&lt;&lt;END);
  134:            WELCOME TO LON-CAPA!
  135: 
  136: If you have questions, please visit http://install.loncapa.org
  137: or contact helpdesk\@loncapa.org.
  138: 
  139: ===============================================================================
  140: The following 7 values are needed to configure LON-CAPA:
  141: * Machine Role
  142: * LON-CAPA Domain Name
  143: * LON-CAPA Machine ID Name
  144: * Server Administration E-mail Address
  145: * LON-CAPA Domain's Primary Library Server Machine ID
  146: * Web Server Protocol
  147: * Internet Domain Name of Your Institution
  148: ===============================================================================
  149: 
  150: In addition, a Support E-mail Address can also be included. If
  151: an address is included then one of the options in the LON-CAPA 
  152: help menu will be a link to a form that a user will complete to
  153: request LON-CAPA help.  
  154: 
  155: END
  156: 
  157: open(OUT,'&gt;/tmp/loncapa_updatequery.out');
  158: close(OUT);
  159: 
  160: # query for Machine Role
  161:   print(&lt;&lt;END);
  162: **** Machine Role ****
  163: Library server (recommended if first-time installation of LON-CAPA):
  164:    Servers that are repositories of authoritative educational resources.
  165:    These servers also provide the authoring spaces in which content
  166:    creators (e.g., faculty instructors) create their learning content.
  167: Access server:
  168:    Servers that load-balance high-traffic delivery of educational resources
  169:    over the world-wide web.
  170: 1) Will this be a library server? (recommended if this is your first install)
  171: 2) Or, will this be an access server?
  172: END
  173: my $flag=0;
  174: my $r='';
  175: my $lonRole;
  176: while (!$flag) {
  177:   print "ENTER A CHOICE OF 1 or 2:\n";
  178:   my $choice=&lt;&gt;;
  179:   chomp($choice);
  180:   if ($choice==1) {
  181:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  182:     print(OUT 'lonRole'."\t".'library'."\n");
  183:     close(OUT);
  184:     $lonRole='library';
  185:     $r='l';
  186:     $flag=1;
  187:   }
  188:   elsif ($choice==2) {
  189:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  190:     print(OUT 'lonRole'."\t".'access'."\n");
  191:     close(OUT);
  192:     $lonRole='access';
  193:     $r='a';
  194:     $flag=2;
  195:   }
  196:   else {
  197: 
  198:   }
  199: }
  200: 
  201: # need to recommend a machine ID name (ipdomain.l.somenumber)
  202: my $hostname=`hostname -f`; chomp($hostname);
  203: my $ipdomain='';
  204: if ($hostname=~/([^\.]*)\.([^\.]*)$/) {
  205:   $ipdomain=$1;
  206: }
  207: 
  208:   print(&lt;&lt;END);
  209: 
  210: **** Domain ****
  211: [This does NOT need to correspond to an internet address domain.
  212:  Please make this name short AND descriptive of your organization.
  213:  Domain names are close to impossible to change later!!!
  214:  Good examples might be "msu" or "bionet" or "vermontcc".
  215:  Bad examples are "physics" (too general)
  216:    or "michiganstateuniversity" (too long)
  217:    or "msuedu" (just make it "msu", or else make it msu.edu)
  218:    or "msuphysics" (only if there is a good reason to limit to department
  219:                     - we don't know of one)
  220:    or "mydomain" (what is that?)
  221:  Avoid multiple domains at the same institution, even if it means that you 
  222:  have to actually work together with your colleagues. You can still run
  223:  multiple library servers within the same domain.
  224:  If this domain is eventually going to be part of the main production
  225:  cluster, you MUST contact the LON-CAPA group at MSU (loncapa\@loncapa.org)
  226:  to have a domain name assigned, and then use it exactly as given. This is
  227:  also true for test installs that might eventually turn into production setups.
  228:  The short domain name needs to be unique, if your aim is to join a cluster 
  229:  containing existing domains. Stop now if you have not yet contacted the 
  230:  MSU LON-CAPA group.] 
  231: END
  232: 
  233: # get domain name
  234: # accept if valid, if not valid, tell user and repeat
  235: $flag=0;
  236: my $lonDefDomain;
  237: while (!$flag) {
  238: if ($ipdomain) {
  239: print(&lt;&lt;END);
  240: ENTER LONCAPA DOMAIN [$ipdomain]:
  241: END
  242: }
  243: else {
  244:   print(&lt;&lt;END);
  245: ENTER LONCAPA DOMAIN:
  246: END
  247: }
  248:   my $choice=&lt;&gt;;
  249:   chomp($choice);
  250:   my $bad_domain_flag=0;
  251:   my @bad_domain_names=('res','raw','userfiles','priv','adm','uploaded',
  252: 	'editupload');
  253:   foreach my $bad (@bad_domain_names) {
  254:     $bad_domain_flag=1 if $choice eq $bad;
  255:   }
  256:   if ($choice=~/capa/i) {
  257:      $bad_domain_flag=1;
  258:   }
  259:   if ($ipdomain and $choice=~/^\s*$/) {
  260:     $choice=$ipdomain;
  261:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  262:     print(OUT 'lonDefDomain'."\t".$choice."\n");
  263:     close(OUT);
  264:     $lonDefDomain=$choice;
  265:     $flag=1;
  266:   } elsif (length($choice)>35) {
  267:     print "Name too long\n";
  268:   } elsif (length($choice)<2) {
  269:     print "Name too short\n";
  270:   } elsif ($bad_domain_flag) {
  271:     print "Invalid input ('$choice' conflicts with LON-CAPA namespace).\n";
  272:     print "Please try something different than '$choice'\n";
  273:   } elsif ($choice!~/\_/ and $choice=~/^[\w\-.]+$/) {
  274:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  275:     print(OUT 'lonDefDomain'."\t".$choice."\n");
  276:     close(OUT);
  277:     $lonDefDomain=$choice;
  278:     $r='l';
  279:     $flag=1;
  280:   } else {
  281:     print "Invalid input (only alphanumeric characters, '-', and '.' supported).\n";
  282:   }
  283: }
  284: 
  285: 
  286: # get domain description
  287: # accept if valid, if not valid, tell user and repeat
  288: $flag=0;
  289: 
  290: while (!$flag) {
  291:   print(&lt;&lt;END);
  292: 
  293: **** Domain Description ****
  294: String describing the domain, to be shown to users.
  295: [Example, msu is Michigan State University]
  296: ENTER DOMAIN DESCRIPTION:
  297: END
  298: 
  299:   my $choice=&lt;&gt;;
  300:   chomp($choice);
  301:   if ($choice!~/:/) {
  302:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  303:     print(OUT 'domainDescription'."\t".$choice."\n");
  304:     close(OUT);
  305:     $domainDescription=$choice;
  306:     $flag=1;
  307:   }
  308:   else {
  309:     print "Invalid input (no ':' allowed).\n";
  310:   }
  311: }
  312: 
  313: my $lonHostID;
  314: if ($lonDefDomain) {
  315:   $lonHostID=$lonDefDomain.$r.int(1+rand(9)); # should be probably also detect
  316:                                               # against the hosts.tab
  317: }
  318: 
  319:   print(&lt;&lt;END);
  320: 
  321: **** Machine ID Name ****
  322: [This does NOT need to correspond to internet address names;
  323:  this name MUST be unique to the whole LON-CAPA network;
  324:  we recommend that you use a name based off of your institution.
  325:  Good examples: "msul1" or "bioneta2".
  326:  Bad examples: "loncapabox" or "studentsinside".
  327:  Note that machine names are very hard to change later.]
  328: END
  329: # get machine name
  330: # accept if valid, if not valid, tell user and repeat
  331: $flag=0;
  332: while (!$flag) {
  333: if ($ipdomain) {
  334: print(&lt;&lt;END);
  335: ENTER LONCAPA MACHINE ID [$lonHostID]:
  336: END
  337: }
  338: else {
  339:   print(&lt;&lt;END);
  340: ENTER LONCAPA MACHINE ID:
  341: END
  342: }
  343:   my $choice=&lt;&gt;;
  344:   chomp($choice);
  345:   if ($choice=~/capa/i) {
  346:     print "Invalid input (names containing 'capa' are reserved).\n";
  347:   } elsif ($lonHostID and $choice=~/^\s*$/) {
  348:     $choice=$lonHostID;
  349:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  350:     print(OUT 'lonHostID'."\t".$choice."\n");
  351:     close(OUT);
  352:     $lonHostID=$choice;
  353:     $flag=1;
  354:   } elsif (length($choice)>45) {
  355:     print "Name too long\n";
  356:   } elsif (length($choice)<4) {
  357:     print "Name too short\n";
  358:   } elsif ($choice!~/\_/ and $choice=~/^[\w\-.]+$/) {
  359:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  360:     print(OUT 'lonHostID'."\t".$choice."\n");
  361:     close(OUT);
  362:     $lonHostID=$choice;
  363:     $flag=1;
  364:   } else {
  365:     print "Invalid input (only alphanumeric characters, '-', and '.' supported).\n";
  366:   }
  367: }
  368: 
  369: # get primary library server in domain
  370: if ($lonRole eq 'library') {
  371:     if (!grep/^\Q$lonHostID\E$/,@libservers) {
  372:         push(@libservers,$lonHostID);
  373:     } 
  374:     if (@libservers == 1) {
  375:         $primaryLibServer = $libservers[0];
  376:     }
  377: }
  378: 
  379: $flag=0;
  380: while (!$flag) {
  381:   print(&lt;&lt;END);
  382: **** Domain's Primary Library Server ID ****
  383: This should be the LON-CAPA machine ID of a library server in your 
  384: domain.  If you only have a single library server in your domain, then
  385: the Primary Library server ID will be the machine ID of that server. 
  386: This server will be where domain data which are not associated with any
  387: specific home library server will be stored (e.g., configurations that
  388: apply to all nodes in the domain).
  389: END
  390:     if (defined($primaryLibServer)) {
  391:         print(&lt;&lt;END);
  392: ENTER DOMAIN'S PRIMARY LIBRARY SERVER ID [$primaryLibServer]:
  393: END
  394:     } elsif (@libservers > 0) {
  395:         print(&lt;&lt;END);
  396: ENTER DOMAIN'S PRIMARY LIBRARY SERVER ID [$libservers[0]]
  397: END
  398:     } else {
  399:         print (&lt;&lt;END);
  400: No library servers could be identified for this domain.  If you have already installed LON-CAPA on a different server (designated as a library server) in this domain, please enter the LONCAPA MACHINE ID of that server.  If not, you will need to install a LON-CAPA library server.  Enter the MACHINE ID of the server you plan to designate as a library server.
  401: END
  402:     }
  403: 
  404:     my $choice=&lt;&gt;;
  405:     chomp($choice);
  406:     if ($primaryLibServer and $choice=~/^\s*$/) {
  407:         $choice=$primaryLibServer;
  408:         open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  409:         print(OUT 'primaryLibServer'."\t".$choice."\n");
  410:         close(OUT);
  411:         $flag=1;
  412:     } elsif (length($choice)>35) {
  413:         print "Name too long\n";
  414:     } elsif (length($choice)<4) {
  415:         print "Name too short\n";
  416:     } elsif ($choice!~/\_/ and $choice=~/^[\w\-.]+$/) {
  417:         open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  418:         print(OUT 'primaryLibServer'."\t".$choice."\n");
  419:         close(OUT);
  420:         $primaryLibServer=$choice;
  421:         $flag=1;
  422:     } else {
  423:         print "Invalid input (only alphanumeric characters, '-', and '.' supported).\n";
  424:     }
  425: }
  426: 
  427: 
  428: # get admin e-mail address
  429: # accept if valid, if not valid, tell user and repeat
  430: $flag=0;
  431: my $lonAdmEMail;
  432: while (!$flag) {
  433:   print(&lt;&lt;END);
  434: 
  435: **** Server Administrators E-mail ****
  436: E-mail address of the person who will manage this machine
  437: [should be in the form somebody\@somewhere]
  438: ENTER ADMIN E-MAIL ADDRESS:
  439: END
  440: 
  441:   my $choice=&lt;&gt;;
  442:   chomp($choice);
  443:   if ($choice=~/\@/) {
  444:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  445:     print(OUT 'lonAdmEMail'."\t".$choice."\n");
  446:     close(OUT);
  447:     $lonAdmEMail=$choice;
  448:     $flag=1;
  449:   }
  450:   else {
  451:     print "Invalid input (this needs to look like an e-mail address!).\n";
  452:   }
  453: }
  454: 
  455: 
  456: # get support e-mail address
  457: # accept if valid, if not valid, tell user and repeat
  458: $flag=0;
  459: my $lonSupportEMail;
  460: while (!$flag) {
  461:   print(&lt;&lt;END);
  462: 
  463: **** Support E-mail ****
  464: E-mail address of the person who will receive 
  465: help requests from LON-CAPA users who access 
  466: the system via this server. If the address is left blank,
  467: then a help support form will not be displayed 
  468: as part of the help menu.
  469: [should be in the form somebody\@somewhere]
  470: ENTER SUPPORT E-MAIL ADDRESS:
  471: END
  472: 
  473:   my $choice=&lt;&gt;;
  474:   chomp($choice);
  475:   $choice =~ s/\s//g;
  476:   if ( ($choice=~/\@/) || $choice eq '') {
  477:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  478:     print(OUT 'lonSupportEMail'."\t".$choice."\n");
  479:     close(OUT);
  480:     $lonSupportEMail=$choice;
  481:     $flag=1;
  482:   }
  483:   else {
  484:     print "Invalid input (this either needs to be blank, or look like an e-mail address!).\n";
  485:   }
  486: }
  487: 
  488: # get protocol
  489: # accept if valid, if not valid, tell user and repeat
  490: $flag=0;
  491: while (!$flag) {
  492:   print(&lt;&lt;END);
  493: 
  494: ****  Web Server Protocol ****
  495: If you plan to run the Apache server with SSL enabled, 
  496: the protocol should be: https; otherwise it should be http.
  497: ENTER WEB SERVER PROTOCOL [http]:
  498: END
  499: 
  500:   my $choice=&lt;&gt;;
  501:   chomp($choice);
  502:   if ($choice =~ /^https?$/) {
  503:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  504:     print(OUT 'protocol'."\t".$choice."\n");
  505:     close(OUT);
  506:     $protocol=$choice;
  507:     $flag=1;
  508:   } elsif ($choice eq '') {
  509:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  510:     print(OUT 'protocol'."\t".'http'."\n");
  511:     close(OUT);
  512:     $protocol = 'http';
  513:     $flag = 1;
  514:   } else {
  515:     print "Invalid input (only http or https allowed).\n";
  516:   }
  517: }
  518: 
  519: # get internet domain
  520: # accept if valid, if not valid, tell user and repeat
  521: $flag=0;
  522: while (!$flag) {
  523:   print(&lt;&lt;END);
  524: 
  525: ****  Internet Domain Name of Your Institution ****
  526: 
  527: The internet domain name used for servers at your institution 
  528: should be provided.  This will be similar to: ustate.edu or
  529: topcollege.ac.uk or myhostingcompany.com, i.e., the part of
  530: a server hostname which indicates to which organization the 
  531: server belongs.
  532: 
  533: ENTER INTERNET DOMAIN NAME:
  534: END
  535: 
  536:   my $choice=&lt;&gt;;
  537:   chomp($choice);
  538:   if ($choice =~/[^.]+\.[^.]+/) {
  539:     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
  540:     print(OUT 'internet domain'."\t".$choice."\n");
  541:     close(OUT);
  542:     $intdom=$choice;
  543:     $flag=1;
  544:   }
  545:   else {
  546:     print "Invalid input (must be at least two levels separated by .  - e.g., ustate.edu).\n";
  547:   }
  548: }
  549: 
  550: 
  551: # update loncapa.conf
  552: my $confdir = '/etc/httpd/conf/';
  553: if ('<DIST />' eq 'sles10' || '<DIST />' eq 'sles11' || '<DIST />' eq 'sles12' || '<DIST />' eq 'suse10.1' || '<DIST />' eq 'suse10.2' || '<DIST />' eq 'suse10.3' || '<DIST />' eq 'suse11.1' || '<DIST />' eq 'suse11.2' || '<DIST />' eq 'suse11.3' || '<DIST />' eq 'suse11.4' || '<DIST />' eq 'suse12.1' || '<DIST />' eq 'suse12.2' || '<DIST />' eq 'suse12.3' || '<DIST />' eq 'suse13.1' || '<DIST />' eq 'suse13.2' || '<DIST />' eq 'debian5' || '<DIST />' eq 'debian6' || '<DIST />' eq 'ubuntu6' || '<DIST />' eq 'ubuntu8' || '<DIST />' eq 'ubuntu10' || '<DIST />' eq 'ubuntu12' || '<DIST />' eq 'ubuntu14' || '<DIST />' eq 'ubuntu16') {
  554:      $confdir = '/etc/apache2/';
  555: }   
  556: my $filename='loncapa.conf';
  557: my %perlvar;
  558:     if (-e "$confdir$filename") {
  559: 	open(CONFIG,'&lt;'.$confdir.$filename) or die("Can't read $confdir$filename");
  560: 	while (my $configline=&lt;CONFIG&gt;) {
  561: 	    if ($configline =~ /^[^\#]*PerlSetVar/) {
  562: 		my ($unused,$varname,$varvalue)=split(/\s+/,$configline);
  563: 		chomp($varvalue);
  564: 		$perlvar{$varname}=$varvalue if $varvalue!~/^\{\[\[\[\[/;
  565: 	    }
  566: 	}
  567: 	close(CONFIG);
  568:     }
  569:     $perlvar{'lonHostID'}=$lonHostID;
  570:     $perlvar{'lonDefDomain'}=$lonDefDomain;
  571:     $perlvar{'lonAdmEMail'}=$lonAdmEMail;
  572:     $perlvar{'lonSupportEMail'}=$lonSupportEMail;
  573:     $perlvar{'lonRole'}=$lonRole;
  574:     unless ($perlvar{'lonLoadLim'} and $perlvar{'lonLoadLim'}!~/\{\[\[\[\[/) {
  575:        $perlvar{'lonLoadLim'}='2.00';
  576:     }
  577:     unless ($perlvar{'lonUserLoadLim'} and $perlvar{'lonUserLoadLim'}!~/\{\[\[\[\[/) {
  578:        $perlvar{'lonUserLoadLim'}='0';
  579:     }
  580:     unless ($perlvar{'lonExpire'} and $perlvar{'lonExpire'}!~/\{\[\[\[\[/) {
  581:        $perlvar{'lonExpire'}='86400';
  582:     }
  583:     unless ($perlvar{'lonReceipt'} and $perlvar{'lonReceipt'}!~/\{\[\[\[\[/) {
  584:        my $lonReceipt='';
  585:        srand(time ^ $$ ^ unpack "%L*", `ps axww | gzip`);
  586:        my @alnum=(0..9,"a".."z");
  587:        foreach my $i (1..20) {
  588: 	 $lonReceipt.=$alnum[int(rand(36))];
  589:        }
  590:        $perlvar{'lonReceipt'}=$lonReceipt;
  591:     }
  592:     open(OUT,"&gt;$confdir$filename") or
  593:       die("Cannot output to $confdir$filename\n");
  594:     foreach my $key (keys %perlvar) {
  595:       my $value=$perlvar{$key};
  596:       my $line = "PerlSetVar     $key      $value"; 
  597:       if ($value eq '') {
  598:           $line = '#'.$line;
  599:       }
  600:       print(OUT &lt;&lt;END);
  601: $line
  602: END
  603:     }
  604:     close(OUT);
  605: }
  606: </perlscript>
  607: </file>
  608: <file>
  609: <target dist='default'>/etc/httpd/conf/</target>
  610: <target dist='sles10 sles11 sles12 suse10.1 suse10.2 suse10.3 suse11.1 suse11.2 suse11.3 suse11.4 suse12.1 suse12.2 suse12.3 suse13.1 suse13.2 debian5 debian6 ubuntu6 ubuntu8 ubuntu10 ubuntu12 ubuntu14 ubuntu16'>/etc/apache2/</target>
  611: <perlscript mode='fg'>
  612: sub securesetting {
  613:     my (%perlvar)=@_;
  614:     my $securestatus='unknown';
  615:     my $securenum='';
  616:     if      ( $perlvar{'loncAllowInsecure'}&&  $perlvar{'londAllowInsecure'}) {
  617: 	$securestatus='no';                  $securenum='4';
  618:     } elsif ( $perlvar{'loncAllowInsecure'}&& !$perlvar{'londAllowInsecure'}) {
  619: 	$securestatus='lond';                $securenum='3';
  620:     } elsif (!$perlvar{'loncAllowInsecure'}&&  $perlvar{'londAllowInsecure'}) {
  621: 	$securestatus='lonc';                $securenum='2';
  622:     } elsif (!$perlvar{'loncAllowInsecure'}&& !$perlvar{'londAllowInsecure'}) {
  623: 	$securestatus='yes (lond and lonc)'; $securenum='1';
  624:     }
  625:     return ($securestatus,$securenum);
  626: }
  627: # read values from loncapa.conf
  628: my $confdir = "<TARGET />";
  629: my $filename='loncapa.conf';
  630: my %perlvar;
  631: my ($securestatus,$securenum);
  632:     if (-e "$confdir$filename") {
  633: 	open(CONFIG,'&lt;'.$confdir.$filename) or 
  634:           die("Can't read $confdir$filename");
  635: 	while (my $configline=&lt;CONFIG&gt;) {
  636: 	    if ($configline =~ /^[^\#]*PerlSetVar/) {
  637: 		my ($unused,$varname,$varvalue)=split(/\s+/,$configline);
  638: 		chomp($varvalue);
  639: 		$perlvar{$varname}=$varvalue;
  640: 	    }
  641: 	}
  642: 	close(CONFIG);
  643:     }
  644:     unless ($perlvar{'lonLoadLim'} and $perlvar{'lonLoadLim'}!~/\{\[\[\[\[/) {
  645:        $perlvar{'lonLoadLim'}='2.00';
  646:     }
  647:     unless ($perlvar{'lonUserLoadLim'} and $perlvar{'lonUserLoadLim'}!~/\{\[\[\[\[/) {
  648:        $perlvar{'lonUserLoadLim'}='0';
  649:     }
  650:     unless ($perlvar{'lonExpire'} and $perlvar{'lonExpire'}!~/\{\[\[\[\[/) {
  651:        $perlvar{'lonExpire'}='86400';
  652:     }
  653:     unless ($perlvar{'londAllowInsecure'} and $perlvar{'londAllowInsecure'}!~/\{\[\[\[\[/) {
  654:        $perlvar{'londAllowInsecure'}='1';
  655:     }
  656:     unless ($perlvar{'loncAllowInsecure'} and $perlvar{'loncAllowInsecure'}!~/\{\[\[\[\[/) {
  657:        $perlvar{'loncAllowInsecure'}='1';
  658:     }
  659:     ($securestatus,$securenum)=&securesetting(%perlvar);
  660:     unless ($perlvar{'lonReceipt'} and $perlvar{'lonReceipt'}!~/\{\[\[\[\[/) {
  661:        my $lonReceipt='';
  662:        srand(time ^ $$ ^ unpack "%L*", `ps axww | gzip`);
  663:        my @alnum=(0..9,"a".."z");
  664:        foreach my $i (1..20) {
  665: 	 $lonReceipt.=$alnum[int(rand(36))];
  666:        }
  667:        $perlvar{'lonReceipt'}=$lonReceipt;
  668:     }
  669: my %perlvarstatic;
  670:     if (-e "${confdir}loncapa_apache.conf") {
  671: 	open(CONFIG,'&lt;'.$confdir.'loncapa_apache.conf') or 
  672:           die("Can't read ${confdir}loncapa_apache.conf");
  673: 	while (my $configline=&lt;CONFIG&gt;) {
  674: 	    if ($configline =~ /^[^\#]*PerlSetVar/) {
  675: 		my ($unused,$varname,$varvalue)=split(/\s+/,$configline);
  676: 		chomp($varvalue);
  677: 		$perlvarstatic{$varname}=$varvalue;
  678: 	    }
  679: 	}
  680: 	close(CONFIG);
  681:     }
  682: 
  683:     my (@hosts_files, @domain_files);
  684:     if ( $lonCluster ne 'existing') {
  685: 	push(@domain_files,'../'.$lonCluster.'_domain.tab',
  686: 	     '../'.$lonCluster.'_dns_domain.tab');
  687: 	push(@hosts_files,'../'.$lonCluster.'_hosts.tab',
  688: 	     '../'.$lonCluster.'_dns_hosts.tab');
  689:     }
  690:     push(@domain_files,'/home/httpd/lonTabs/domain.tab',
  691:          '/home/httpd/lonTabs/dns_domain.tab');
  692:     push(@hosts_files,'/home/httpd/lonTabs/hosts.tab',
  693:          '/home/httpd/lonTabs/dns_hosts.tab');
  694: 
  695:     if (!$domainDescription) {
  696: 	foreach my $file (@domain_files) {
  697: 	    open(IN,'&lt;'.$file);
  698: 	    while(my $line = &lt;IN&gt;) {
  699: 		if ($line =~ /^\Q$perlvar{'lonDefDomain'}\E\:/) {
  700: 		    (undef,$domainDescription,$domainTabExtras)=split(/:/,$line,3);
  701: 		    chomp($domainDescription);
  702: 		    chomp($domainTabExtras);
  703: 		    # the remaining field (primary lib server) is handled later
  704: 		    $domainTabExtras = join(':',(split(/:/,$domainTabExtras))[0..5]);
  705: 		    last;
  706: 		}
  707: 	    }
  708: 	    close(IN);
  709: 	    last if ($domainDescription);
  710: 	}
  711:     }
  712: 
  713:     if (!$protocol) {
  714:         foreach my $file (@hosts_files) {
  715:             open(IN,'&lt;'.$file);
  716:             while(my $line = &lt;IN&gt;) {
  717:                 if ($line =~ /^\Q$perlvar{'lonHostID'}\E:\Q$perlvar{'lonDefDomain'}\E\:(?:access|library)\:[^:]+\:(https?)/) {
  718:                     $protocol = $1;
  719:                     chomp($protocol);
  720:                     last;
  721:                 }
  722:             }
  723:         }
  724:     }
  725: 
  726:     if (!$protocol) {
  727:         $protocol = 'http';
  728:     }
  729: 
  730:     if (!$intdom) {
  731:         foreach my $file (@hosts_files) {
  732:             open(IN,'&lt;'.$file);
  733:             while(my $line = &lt;IN&gt;) {
  734:                 if ($line =~ /^\Q$perlvar{'lonHostID'}\E:\Q$perlvar{'lonDefDomain'}\E\:(?:access|library)\:[^:]+\:https?\:([^:]+)/) {
  735:                     $intdom = $1;
  736:                     chomp($intdom);
  737:                     last;
  738:                 }
  739:             }
  740:         }
  741:     }
  742: 
  743:     while(!$primaryLibServer && (@hosts_files || @domain_files)) {
  744: 	my $file = shift(@domain_files);
  745:         open(IN,'&lt;'.$file);
  746:         while(my $line = &lt;IN&gt;) {
  747:             if ($line =~ /^\Q$perlvar{'lonDefDomain'}\E\:/) {
  748: 		$primaryLibServer=(split(/:/,$line))[8];
  749:                 chomp($primaryLibServer);
  750:             }
  751:         }
  752:         close(IN);
  753: 	last if ($primaryLibServer);
  754: 	$file = shift(@hosts_files);
  755: 	open(IN,'&lt;'.$file);
  756: 	while(my $line = &lt;IN&gt;) {
  757: 	    if ($line =~ /^([^\:]+)\:\Q$perlvar{'lonDefDomain'}\E\:library\:/) {
  758: 		push(@libservers,$1);
  759: 	    }
  760: 	}
  761: 	# make list unique
  762: 	@libservers = keys(%{{ map { $_ => 1 } (@libservers) }});
  763: 	close(IN);
  764: 	if (@libservers == 1) {
  765: 	    $primaryLibServer = $libservers[0];
  766: 	}
  767:     }
  768:    
  769: # implement editing logic below, interactively
  770: # update loncapa.conf until 14 is entered
  771: 
  772: my $flag=0;
  773: 
  774: while (!$flag) {
  775:   print(&lt;&lt;END);
  776: 
  777: ===============================================================================
  778: This is now the current configuration of your machine.
  779:  1) Domain Name: $perlvar{'lonDefDomain'}
  780:  2) Domain Description: $domainDescription
  781:  3) Machine Name: $perlvar{'lonHostID'}
  782:  4) ID of primary library server for domain: $primaryLibServer
  783:  5) Server Administrator's E-mail Address: $perlvar{'lonAdmEMail'}
  784:  6) Support E-mail Address: $perlvar{'lonSupportEMail'}
  785:  7) Web Server Protocol (http or https): $protocol 
  786:  8) Internet Domain Name: $intdom 
  787:  9) Role: $perlvar{'lonRole'}
  788: 10) Cache Expiration Time: $perlvar{'lonExpire'}
  789: 11) Server Load: $perlvar{'lonLoadLim'}
  790: 12) User Load: $perlvar{'lonUserLoadLim'}
  791: 13) Allow only secure connections: $securestatus 
  792: 14) Everything is correct up above
  793: END
  794: 
  795: my @error;
  796: foreach my $v ($perlvar{'lonDefDomain'},$perlvar{'lonHostID'}) {
  797:    if (length($v)>35) { push(@error,"Name $v too long"); }		
  798:    if (length($v)<2) { push(@error,"Name $v too short"); }
  799:    if ($v=~/capa/i) {
  800: 	if ($v!~/^oucapa\d+$/ && 
  801: 	    ($v!~/^capa\d+$/ && $perlvar{'lonDefDomain'} eq 'uwsp')) {
  802: 		 push(@error,"Name $v contains 'capa'");
  803: 	}
  804:    }
  805:    foreach my $bad ('res','raw','userfiles','priv','adm','uploaded',
  806: 	'editupload') {
  807:       push(@error,"\nName $v reserved.") if $v eq $bad;
  808:    }
  809:    if ($v=~/[^\w\-.]/) { push(@error,"Name $v contains special characters"); }
  810: }
  811: if ($domainDescription =~ /^\s*$/) {
  812:    push(@error,"Domain Description is blank.");
  813: } elsif ($domainDescription!~/^[\(\)\-\w\s,]+$/) {
  814:    push(@error,"Domain Description contains special characters.");
  815: } 
  816: foreach my $v ($perlvar{'lonExpire'},$perlvar{'lonLoadLim'}) {
  817:    unless ($v=~/^[\d+\.]+$/) { push(@error,"Number expected instead of $v"); }
  818: }
  819: unless (($perlvar{'lonRole'} eq 'library') || ($perlvar{'lonRole'} eq 'access')) {
  820:    push(@error,"Invalid Role");
  821: }
  822: 
  823: unless (($protocol eq 'http') || ($protocol eq 'https')) {
  824:    push(@error,"Invalid Protocol (must be http or https");
  825: }
  826: 
  827: if (!defined($intdom)) { 
  828:    push(@error,"No internet domain name designated. Enter something like ustate.edu"); 
  829: } elsif ($intdom !~ /[^.]+\.\w{2,6}$/) {
  830:    push(@error,"Invalid Internet domain name (must be at least two levels separated by .  - e.g., ustate.edu");
  831: }
  832: 
  833: if (!defined($primaryLibServer)) {
  834:    if (@libservers > 0) {
  835:        push(@error,"No primary library server ID designated. Choose from: ".join(',',sort(@libservers)));
  836:    } else {
  837:        push(@error,"No library servers in this domain (including current server)");
  838:    }
  839: } else {
  840:    if (length($primaryLibServer)>35) { push(@error,"Primary Library Server ID:  $primaryLibServer too long"); }
  841:    if (length($primaryLibServer)<2) { push(@error,"Primary Library Server ID:  $primaryLibServer too short"); }
  842:    if ($primaryLibServer =~/capa/i) {
  843:         if ($primaryLibServer!~/^oucapa\d+$/ &&
  844:             ($primaryLibServer!~/^capa\d+$/ && $perlvar{'lonDefDomain'} eq 'uwsp')) {
  845:                  push(@error,"Primary library server ID $primaryLibServer contains 'capa'")
  846:         }
  847:    }
  848:    foreach my $bad ('res','raw','userfiles','priv','adm','uploaded',
  849:         'editupload') {
  850:       push(@error,"Primary library server ID $primaryLibServer reserved.") if $primaryLibServer eq $bad;
  851:    }
  852:    if ($primaryLibServer=~/[^\w\-.]/) { push(@error,"Primary library server ID $primaryLibServer contains special characters"); }
  853: }
  854: 
  855: 
  856: if (@error) { print "\n*** ERRORS: \n\t".join("\n\t",@error)."\n"; }
  857:   print(&lt;&lt;END);
  858: ENTER A CHOICE OF 1-13 TO CHANGE, otherwise ENTER 14:
  859: END
  860: my $choice=&lt;&gt;;
  861: chomp($choice);
  862:   if ($choice==1) {
  863:   print(&lt;&lt;END);
  864: 1) Domain Name: $perlvar{'lonDefDomain'}
  865: ENTER NEW VALUE (this is an internal value used to identify a group of
  866:                  LON-CAPA machines, it must be alphanumerical, we suggest
  867:                  using a part of your actual DNS domain. For example, for
  868:                  the machine loncapa.msu.edu, we set the Domain to msu):
  869: END
  870:     my $choice2=&lt;&gt;;
  871:     chomp($choice2);
  872:     $perlvar{'lonDefDomain'}=$choice2;
  873:   }
  874:   elsif ($choice==2) {
  875:   print(&lt;&lt;END);
  876: 2) Domain Description: $domainDescription
  877: ENTER NEW VALUE (this should be a string that describes your domain, spaces
  878:                  and punctuation are fine except for ':'):
  879: END
  880:     my $choice2=&lt;&gt;;
  881:     chomp($choice2);
  882:     $domainDescription=$choice2;
  883:   }
  884:   elsif ($choice==3) {
  885:   print(&lt;&lt;END);
  886: 3) Machine Name: $perlvar{'lonHostID'}
  887: ENTER NEW VALUE (this will be the name of the machine in the LON-CAPA network
  888:                  it cannot contain any of '_' '-' '.' or ':'. We suggest that
  889:                  if you are in the domain 'example' and are the first library
  890:                  server you enter 'examplel1') :
  891: END
  892:     my $choice2=&lt;&gt;;
  893:     chomp($choice2);
  894:     $perlvar{'lonHostID'}=$choice2;
  895:   }
  896:   elsif ($choice==4) {
  897:   print(&lt;&lt;END);
  898: 4) ID of primary library server for domain: $primaryLibServer
  899: ENTER NEW VALUE (this will be the LON-CAPA Machine ID of a library server in
  900:                  your domain; it cannot contain any of '_' '-' '.' or ':'. 
  901:                  This server will be where domain data which are not 
  902:                  associated with any specific home library server
  903:                  will be stored (e.g., e-mail broadcast by Domain Coordinators
  904:                  to users in the domain).
  905: END
  906:     my $choice2=&lt;&gt;;
  907:     chomp($choice2);
  908:     $primaryLibServer=$choice2;
  909:   }
  910:   elsif ($choice==5) {
  911:   print(&lt;&lt;END);
  912: 5) Server Administrator's E-mail Address: $perlvar{'lonAdmEMail'}
  913: ENTER NEW VALUE:
  914: END
  915:     my $choice2=&lt;&gt;;
  916:     chomp($choice2);
  917:     $perlvar{'lonAdmEMail'}=$choice2;
  918:   }
  919:   elsif ($choice==6) {
  920:   print(&lt;&lt;END);
  921: 6) Support E-mail Address: $perlvar{'lonSupportEMail'}
  922: ENTER NEW VALUE:
  923: END
  924:     my $choice2=&lt;&gt;;
  925:     chomp($choice2);
  926:     $perlvar{'lonSupportEMail'}=$choice2;
  927:   }
  928:   elsif ($choice==7) {
  929:   print(&lt;&lt;END);
  930: 7) Server Protocol (http or https): 
  931: ENTER NEW VALUE: (this should be either 'http' or 'https'
  932:                  if in doubt set to 'http'):
  933: END
  934:     my $choice2=&lt;&gt;;
  935:     chomp($choice2);
  936:     $protocol=$choice2;
  937:   }
  938:   elsif ($choice==8) {
  939:   print(&lt;&lt;END);
  940: 8) Internet Domain Name of Institution
  941: ENTER NEW VALUE: 
  942: 
  943: END
  944:     my $choice2=&lt;&gt;;
  945:     chomp($choice2);
  946:     $intdom=$choice2;
  947:   }
  948:   elsif ($choice==9) {
  949:   print(&lt;&lt;END);
  950: 9) Role: $perlvar{'lonRole'}
  951: ENTER NEW VALUE (this should be either 'access' or 'library' 
  952:                  if in doubt select 'library'):
  953: END
  954:     my $choice2=&lt;&gt;;
  955:     chomp($choice2);
  956:     $perlvar{'lonRole'}=$choice2;
  957:   }
  958:   elsif ($choice==10) {
  959:   print(&lt;&lt;END);
  960: 10) Cache Expiration Time: $perlvar{'lonExpire'}
  961: ENTER NEW VALUE (in seconds, 86400 is a reasonable value):
  962: END
  963:     my $choice2=&lt;&gt;;
  964:     chomp($choice2);
  965:     $perlvar{'lonExpire'}=$choice2;
  966:   }
  967:   elsif ($choice==11) {
  968:   print(&lt;&lt;END);
  969: 11) Server Load: $perlvar{'lonLoadLim'}
  970: ENTER NEW VALUE:
  971: END
  972:     my $choice2=&lt;&gt;;
  973:     chomp($choice2);
  974:     $perlvar{'lonLoadLim'}=$choice2;
  975:   }
  976:   elsif ($choice==12) {
  977:   print(&lt;&lt;END);
  978: 12) User Load: $perlvar{'lonUserLoadLim'}
  979: Numer of users that can login before machine is 'overloaded'
  980: ENTER NEW VALUE (integer value, 0 means there is no limit):
  981: END
  982:     my $choice2=&lt;&gt;;
  983:     chomp($choice2);
  984:     $perlvar{'lonUserLoadLim'}=$choice2;
  985:   }
  986:   elsif ($choice==13) {
  987:   print(&lt;&lt;END);
  988: 13) Allow only secure connections: $securestatus 
  989: The Lon-CAPA communication daemons lonc and lond can be configured to
  990: allow only secure connections by default.
  991: 
  992: POSSIBLE CHOICES:
  993: 1) allow only secure connections and don't connect to machines that
  994:     can not be connected to securely
  995: 2) allow only secure connections but allow this machine to connect to 
  996:     machines that don't support secure connections
  997: 3) allow insecure connections to this machine but only allow connections
  998:     to machines that support secure connections
  999: 4) allow insecure connections
 1000: ENTER NEW VALUE (currently $securenum):
 1001: END
 1002:     my $choice2=&lt;&gt;;
 1003:     chomp($choice2);
 1004:     if      ($choice2 eq '1') {
 1005: 	$perlvar{'loncAllowInsecure'}=0;$perlvar{'londAllowInsecure'}=0;
 1006:     } elsif ($choice2 eq '2') {
 1007: 	$perlvar{'loncAllowInsecure'}=0;$perlvar{'londAllowInsecure'}=1;
 1008:     } elsif ($choice2 eq '3') {
 1009: 	$perlvar{'loncAllowInsecure'}=1;$perlvar{'londAllowInsecure'}=0;
 1010:     } elsif ($choice2 eq '4') {
 1011: 	$perlvar{'loncAllowInsecure'}=1;$perlvar{'londAllowInsecure'}=1;
 1012:     }
 1013:     ($securestatus,$securenum)=&securesetting(%perlvar);
 1014:   }
 1015:   elsif (($choice==14) && (!@error)) {
 1016:     $flag=1;
 1017:   }
 1018:   else {
 1019:     print "Invalid input.\n";
 1020:   }
 1021: }
 1022:     open(OUT,"&gt;$confdir$filename") or
 1023:       die("Cannot output to $confdir$filename\n");
 1024:     foreach my $key (keys %perlvar) {
 1025:       my $value=$perlvar{$key};
 1026:       my $line = "PerlSetVar     $key      $value";
 1027:       if ($value eq '') {
 1028:           $line = '#'.$line;
 1029:       }
 1030:       print(OUT &lt;&lt;END) unless $perlvarstatic{$key};
 1031: $line
 1032: END
 1033:     }
 1034:     close(OUT);
 1035: </perlscript>
 1036: </file>
 1037: <file>
 1038: <target dist='default'>loncom/hosts.tab</target>
 1039: <perlscript mode='fg'>
 1040: unless (-l "<TARGET />") {
 1041:   my $hostname=`hostname -f`;chomp($hostname);
 1042:   my $date=`date -I`; chomp($date);
 1043:   my $lonHostID=$perlvar{'lonHostID'};
 1044:   $lonHostID=~s/[^\w\-.]//g;
 1045:   my $lineexistflag=0;
 1046:   my $hostidexistflag=0;
 1047:   my $line2insert=&lt;&lt;END;
 1048: $perlvar{'lonHostID'}:$perlvar{'lonDefDomain'}:$perlvar{'lonRole'}:$hostname:$protocol:$intdom
 1049: END
 1050:   if (!$domainTabExtras) {
 1051: 	$domainTabExtras=':::::';
 1052:   }
 1053:   my $domaininsert="$perlvar{'lonDefDomain'}:$domainDescription:$domainTabExtras:$primaryLibServer\n";
 1054:   if ($lonCluster eq 'standalone') {
 1055:     open(OUT,'&gt;../'.$lonCluster.'_hosts.tab') or
 1056:       die('file generation error');
 1057:       print(OUT $line2insert);
 1058:       print OUT ("^$hostname:$protocol\n");
 1059:     close(OUT);
 1060:     open(OUT,'&gt;../'.$lonCluster.'_dns_hosts.tab') or
 1061:       die('file generation error');
 1062:       print(OUT $line2insert);
 1063:     close(OUT);
 1064:     open(OUT,'&gt;../'.$lonCluster.'_domain.tab') or
 1065:       die('file generation error');
 1066:       print(OUT $domaininsert);
 1067:     close(OUT);
 1068:     open(OUT,'&gt;../'.$lonCluster.'_dns_domain.tab') or
 1069:       die('file generation error');
 1070:       print(OUT $domaininsert);
 1071:     close(OUT);
 1072:   }
 1073:   if ($flag==1) {
 1074:     `rm -f ../hosts.tab`;
 1075:     `rm -f ../dns_hosts.tab`;
 1076:     `ln -s ${lonCluster}_dns_hosts.tab ../dns_hosts.tab`;
 1077:     open(IN,'&lt;../'.$lonCluster.'_dns_hosts.tab');
 1078:     while(my $line = &lt;IN&gt;) {
 1079:       if ($line =~ /^\Q$line2insert\E$/) {
 1080:         $lineexistflag=1;
 1081:       }
 1082:       if ($line =~ /^\Q$lonHostID\E\:/) {
 1083:         $hostidexistflag=1;
 1084:       }
 1085:     }
 1086:     close(IN);
 1087:     if ($hostidexistflag and !$lineexistflag) {
 1088:       print &lt;&lt;END;
 1089: WARNING: $lonHostID already exists inside
 1090: loncapa/loncom/${lonCluster}_dns_hosts.tab.  The entry inside
 1091: ${lonCluster}_dns_hosts.tab does not match your settings.
 1092: An entry inside ${lonCluster}_hosts.tab will be made
 1093: with your new values.
 1094: END
 1095:       `grep -v "$lonHostID:" ../${lonCluster}_hosts.tab &gt; ../new_${lonCluster}_hosts.tab`;
 1096:        open(OUT,'&gt;&gt;../new_'.$lonCluster.'_hosts.tab') or
 1097:          die("cannot open loncom/${lonCluster}_hosts.tab for output\n");
 1098:          print(OUT $line2insert);
 1099:        close(OUT);
 1100:       `ln -s new_${lonCluster}_hosts.tab ../hosts.tab`;
 1101:       # email appropriate message
 1102:       `echo "REPLACE:$lonCluster:$lonHostID:$date:$line2insert" | mail -s "REPLACE:$lonCluster:$lonHostID:$protocol:$intdom:$date" installrecord\@mail.lon-capa.org`;
 1103:     }
 1104:     elsif ($hostidexistflag and $lineexistflag) {
 1105:       print &lt;&lt;END;
 1106: Entry exists in ${lonCluster}_dns_hosts.tab. Making duplicate entry in ${lonCluster}_hosts.tab
 1107: END
 1108:       `grep -v "$lonHostID:" ../${lonCluster}_hosts.tab &gt; ../new_${lonCluster}_hosts.tab`;
 1109:        open(OUT,'&gt;&gt;../new_'.$lonCluster.'_hosts.tab') or
 1110:          die("cannot open loncom/${lonCluster}_hosts.tab for output\n");
 1111:          print(OUT $line2insert);
 1112:        close(OUT);
 1113:       `ln -s new_${lonCluster}_hosts.tab ../hosts.tab`;
 1114:       # email appropriate message
 1115:       `echo "STABLEUPDATE:$lonCluster:$lonHostID:$date:$line2insert" | mail -s "STABLEUPDATE:$lonCluster:$lonHostID:$protocol:$intdom:$date" installrecord\@mail.lon-capa.org`;
 1116:     }
 1117:     elsif (!$hostidexistflag and !$lineexistflag) {
 1118:       print &lt;&lt;END;
 1119: New entry for $lonCluster.
 1120: END
 1121:       `cat ../${lonCluster}_hosts.tab &gt; ../new_${lonCluster}_hosts.tab`;
 1122:        open(OUT,'&gt;&gt;../new_'.$lonCluster.'_hosts.tab') or
 1123:          die("cannot open loncom/new_${lonCluster}_hosts.tab for output\n");
 1124:          print(OUT $line2insert);
 1125:        close(OUT);
 1126:       `ln -s new_${lonCluster}_hosts.tab ../hosts.tab`;
 1127:       # email appropriate message
 1128:       `echo "INSERT:$lonCluster:$lonHostID:$date:$line2insert" | mail -s "INSERT:$lonCluster:$lonHostID:$protocol:$intdom:$date" installrecord\@mail.lon-capa.org`;
 1129:     }
 1130:   }
 1131:   $lineexistflag=0;
 1132:   my $domainexistflag=0;
 1133:   if ($flag==1) {
 1134:     `rm -f ../domain.tab`;
 1135:     `rm -f ../dns_domain.tab`;
 1136:     `ln -s ${lonCluster}_dns_domain.tab ../dns_domain.tab`;
 1137:     open(IN,'&lt;../'.$lonCluster.'_dns_domain.tab');
 1138:     while(my $line = &lt;IN&gt;) {
 1139:       if ($line =~/^\Q$domaininsert\E$/) {
 1140:         $lineexistflag=1;
 1141:       }
 1142:       if ($line =~/^\Q$perlvar{'lonDefDomain'}\E\:/) {
 1143:         $domainexistflag=1;
 1144:       }
 1145:     }
 1146:     close(IN);
 1147:     if ($domainexistflag and !$lineexistflag) {
 1148:       print &lt;&lt;END;
 1149: WARNING: $perlvar{'lonDefDomain'} already exists inside
 1150: loncapa/loncom/${lonCluster}_dns_domain.tab.  The entry inside
 1151: ${lonCluster}_dns_domain.tab does not match your settings.
 1152: An entry will be made in inside ${lonCluster}_domain.tab
 1153: with your new values.
 1154: END
 1155:       `grep -v "$perlvar{'lonDefDomain'}:" ../${lonCluster}_domain.tab &gt; ../new_${lonCluster}_domain.tab`;
 1156:        open(OUT,'&gt;&gt;../new_'.$lonCluster.'_domain.tab') or
 1157:          die("cannot open loncom/${lonCluster}_domain.tab for output\n");
 1158:          print(OUT $domaininsert);
 1159:        close(OUT);
 1160:       `ln -s new_${lonCluster}_domain.tab ../domain.tab`;
 1161:       # email appropriate message
 1162:       `echo "REPLACEdom:$lonCluster:$lonHostID:$date:$domaininsert" | mail -s "REPLACEdom:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
 1163:     }
 1164:     elsif ($domainexistflag and $lineexistflag) {
 1165:       `grep -v "$perlvar{'lonDefDomain'}:" ../${lonCluster}_domain.tab &gt; ../new_${lonCluster}_domain.tab`;
 1166:        open(OUT,'&gt;&gt;../new_'.$lonCluster.'_domain.tab') or
 1167:          die("cannot open loncom/${lonCluster}_domain.tab for output\n");
 1168:          print(OUT $domaininsert);
 1169:        close(OUT);
 1170:       print &lt;&lt;END;
 1171: Entry exists in ${lonCluster}_dns_domain.tab. Making duplicate entry in ${lonCluster}_domain.tab
 1172: END
 1173:       `ln -s new_${lonCluster}_domain.tab ../domain.tab`;
 1174:       # email appropriate message
 1175:       `echo "STABLEUPDATEdom:$lonCluster:$lonHostID:$date:$domaininsert" | mail -s "STABLEUPDATEdom:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
 1176:     }
 1177:     elsif (!$domainexistflag and !$lineexistflag) {
 1178:       print &lt;&lt;END;
 1179: New entry for $lonCluster.
 1180: END
 1181:       `cat ../${lonCluster}_domain.tab &gt; ../new_${lonCluster}_domain.tab`;
 1182:        open(OUT,'&gt;&gt;../new_'.$lonCluster.'_domain.tab') or
 1183:          die("cannot open loncom/new_${lonCluster}_domain.tab for output\n");
 1184:          print(OUT $domaininsert);
 1185:        close(OUT);
 1186:       `ln -s new_${lonCluster}_domain.tab ../domain.tab`;
 1187:       # email appropriate message
 1188:       `echo "INSERTdom:$lonCluster:$lonHostID:$date:$domaininsert" | mail -s "INSERTdom:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
 1189:     }
 1190:   }
 1191: }
 1192: </perlscript>
 1193: </file>
 1194: </files>
 1195: </piml>

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