[BACK]Return to lonchatfetch.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface

Diff for /loncom/interface/lonchatfetch.pm between versions 1.1 and 1.40

version 1.1, 2002/08/08 13:44:17 version 1.40, 2021/11/30 15:55:37
Line 29 Line 29
 package Apache::lonchatfetch;  package Apache::lonchatfetch;
   
 use strict;  use strict;
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common :http);
 use Apache::lontexconvert;  use Apache::lontexconvert;
   use Apache::loncommon;
   use Apache::lonnet;
   use Apache::longroup;
   use Apache::lonlocal;
   use lib '/home/httpd/lib/perl/';
   use LONCAPA;
    
   
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
     $r->content_type('text/html');  
       &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
       ['lastid','group']);
       my ($group,$grouptitle);
       my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
       my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
       if (defined($env{'form.group'})) {
           $group = $env{'form.group'};
           if ((! &Apache::lonnet::allowed('pgc',$env{'request.course.id'}.'/'.
          $group)) &&
              (! &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.
            ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
               return HTTP_NOT_ACCEPTABLE;
           }
           my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum,$group);
           if (%curr_groups) {
               my %group_info = 
    &Apache::longroup::get_group_settings($curr_groups{$group});
               $grouptitle = 
    '<b>'.&unescape($group_info{description}).
    '</b><br />';
           }
       } elsif (! &Apache::lonnet::allowed('plc',$env{'request.course.id'}.
                ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))
           ) {
           return HTTP_NOT_ACCEPTABLE;
       }
   
       &Apache::loncommon::content_type($r,'text/html');
     $r->send_http_header;      $r->send_http_header;
     return OK if $r->header_only;      return OK if $r->header_only;
   
 # ------------------------------------------------------------ retrieve entries  # ------------------------------------------------------------ retrieve entries
   
     my $cnum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};      my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
     my $cdom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};  
     my $chome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'};  
     my @entries=split(/\:/,      my @entries=split(/\:/,
                        &Apache::lonnet::reply("chatretr:$cdom:$cnum",$chome));         &Apache::lonnet::reply(
     my ($lastid)=($entries[$#entries]=~/^(\w+)/);          "chatretr:$cdom:$cnum:$env{'user.domain'}:$env{'user.name'}:$group",
     my ($thentime,$idnum)=split(/\_/,$lastid);          $chome));
   # Figure out what the last valid entry-id is
       my ($lastid,$thentime,$idnum);
       foreach my $entry (@entries) {
    $entry =~/^(\w+)/;
           if ($1 ne 'active_participant') {
       $lastid=$1;
               ($thentime,$idnum)=split(/\_/,$lastid);
    }
       }
   # ----------------------------------------------------------- Can see identity?
       my $seeid = &get_seeid_status();
 # -------------------------------------------------------- see which ones apply  # -------------------------------------------------------- see which ones apply
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['lastid']);  
     my $include=0;      my $include=0;
       my $header;
     my $newstuff='';      my $newstuff='';
     unless ($ENV{'form.lastid'}) { $include=1; }      my $bottomid='';
     foreach (@entries) {      unless ($env{'form.lastid'}) { 
  if ($include) {   $include=1; 
             my ($id,$msg)=split(/\:/,&Apache::lonnet::unescape($_));   $header = 
             chomp($msg);      &Apache::loncommon::start_page(undef,undef,
             my ($msgtime,$msgnum)=split(/\_/,$id);     {'only_body' => 1,
             my ($sdom,$snum,$anon,$contrib)=split(/\:/,      'bgcolor'   => '#FFFFFF',
                                               &Apache::lonnet::unescape($msg));      'js_ready'  => 1,});
             $contrib=&Apache::lonnet::unescape($contrib);      }
             $contrib=~s/\n/\<br \/\>/g;      my @participants=();
     $contrib=&Apache::lontexconvert::msgtexconverted($contrib);      foreach my $entry (@entries) {
             $contrib=~s/\n/ /g;   my ($id,$msg,$udom)=split(/\:/,&unescape($entry));
             $contrib=~s/\'/\&\#39\;/g;    if ($id eq 'active_participant') {
             my $sender=$snum.' at '.$sdom;             chomp($udom);
             if ($anon) {     my $participant= &Apache::loncommon::nickname($msg,$udom);
      unless ($participant=~/\w/) { $participant=$msg.':'.$udom; }
      $participants[$#participants+1]=$participant;
    } elsif ($include) {
       chomp($msg);
       my ($msgtime,$msgnum)=split(/\_/,$id);
       my ($sdom,$snum,$anon,$contrib)=split(/\:/,
        &unescape($msg));
       $contrib=&unescape($contrib);
       &Apache::lonfeedback::newline_to_br(\$contrib);
       ($contrib,my $errors)=&Apache::lontexconvert::msgtexconverted($contrib);
               if ($errors) {
                   $contrib.=' <span class="LC_error">'
                            .&mt('(Message not fully displayed due to incorrect embedded TeX.)')
                            .'</span>';
             }              }
     $newstuff.='<b>'.$sender.'</b> ('.localtime($msgtime).'): '.      if ($errors && $snum eq $env{'user.name'} &&
                        $contrib."<br>";   $sdom eq $env{'user.domain'} ) {
         } else {                  $contrib.='<br /><span class="LC_error">'
             $_=~/^(\w+)/;                           .&mt('TeX error message: [_1]',$errors)
             if ($1 eq $ENV{'form.lastid'}) { $include=1; }                           .'</span>';
         }      }
       $contrib=~s/\n/ /g;
       $contrib=~s/\'/\&\#39\;/g;
       my $sender='';
       if ($seeid) {
    $sender=&Apache::loncommon::plainname($snum,$sdom);
    my $nick=&Apache::loncommon::nickname($snum,$sdom);
    if (($nick) && ($nick ne $sender)) {
       $sender.=' '.$nick;
    }
    unless ($sender) { $sender=$snum.':'.$sdom; }
    if ($anon) { $sender.=' [Anon]' };
       } elsif (!$anon) {
    $sender=&Apache::loncommon::nickname($snum,$sdom);
    unless ($sender) { $sender=$snum.':'.$sdom; }
       } else {
    $sender=&Apache::loncommon::screenname($snum,$sdom);
    unless ($sender) { $sender=&mt("Anonymous"); }
       }
       $sender=~s/\'/\&\#39\;/g;
       my $color=$sender;
       $color=~tr/a-j/0-9/;
       $color=~tr/A-J/0-9/;
       $color=~tr/k-t/0-9/;
       $color=~tr/K-T/0-9/;
       $color=~tr/u-z/0-5/;
       $color=~tr/U-Z/0-5/;
       $color=~s/\D//g;
       $color=substr($color,0,6);
       my $timestamp=localtime($msgtime);
       my ($mhour,$mmin,$msec)=($timestamp=~/(\d\d)\:(\d\d)\:(\d\d)/);
       $newstuff.='<span style="color:#'.$color.'"><a name="LC_'.$id.'"></a><b>'.
    $sender.'</b> ('.$mhour.':'.$mmin.':'.$msec.'): '.
    $contrib."</span><br />";
       $bottomid='LC_'.$id;
    } else {
       $entry=~/^(\w+)/;
       if ($1 eq $env{'form.lastid'}) { $include=1; }
    }
       }
       my $participant_output=join('<br />',sort @participants);
       my $refresh_cmd = "/adm/chatfetch?lastid=$lastid";
       if (defined($group)) {
           $refresh_cmd .= "&amp;group=$group";
     }      }
       my $headarg;
       my $clientip = &Apache::lonnet::get_requestor_ip($r);
       my ($blocked,$blocktext) = &blockstatus($clientip);
       if ($blocked) {
           $newstuff = $blocktext;
           $headarg =  {'only_body' => 1,};
   
    $r->print(<<ENDSCRIPT);
             <script type="text/javascript">
               parent.location.href="/adm/blockingstatus/?activity=chat"
             </script>
   ENDSCRIPT
       } else {
           $headarg = {'redirect'  => [5,$refresh_cmd,1],
                                       'only_body' => 1,};
       }
       my $start_page = &Apache::loncommon::start_page('Chat Room',undef,$headarg); 
       my $end_page = &Apache::loncommon::end_page();
     $r->print(<<ENDDOCUMENT);      $r->print(<<ENDDOCUMENT);
 <html>  $start_page
 <head>  <script type="text/javascript">
 <title>The LearningOnline Network with CAPA</title>  parent.chatout.document.writeln('$header$newstuff');
   <meta HTTP-EQUIV="Refresh" CONTENT="5; url=/adm/chatfetch?lastid=$lastid">  parent.chatout.scroll(0,10000000);
 </head>  
 <body bgcolor="#FFFFFF">  
 <script>  
 parent.chatout.document.writeln('$newstuff');  
 </script>  </script>
 </body>  $grouptitle
 </html>  $participant_output
   $end_page
 ENDDOCUMENT  ENDDOCUMENT
     return OK;      return OK;
 }   }
   
   sub get_seeid_status {
       my $crs='/'.$env{'request.course.id'};
       my $seeid;
       if (exists($env{'form.group'})) {
           $seeid = &Apache::lonnet::allowed('rci',$crs.'/'.$env{'form.group'});
       } else {
           if ($env{'request.course.sec'}) {
               $crs.='_'.$env{'request.course.sec'};
           }
           $crs=~s/\_/\//g;
           $seeid=&Apache::lonnet::allowed('rin',$crs);
       }
       return $seeid;
   }
   
   sub blockstatus {
       my ($clientip) = @_;
       my ($blocked,$output);
       my %setters;
       my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
           &Apache::loncommon::blockcheck(\%setters,'chat',$clientip);
       if ($startblock && $endblock) {
           $blocked = 1;
           my $endblocktime = &Apache::lonlocal::locallocaltime($endblock);
           $output .= &mt('Chat Room will be unavailable to you until [_1] because communication is blocked in one or more of your courses:',$endblocktime).'<br /><br />';
           foreach my $course (keys(%setters)) {
               my %courseinfo=&Apache::lonnet::coursedescription($course);
               for (my $i=0; $i<@{$setters{$course}{staff}}; $i++) {
                   my ($uname,$udom) = @{$setters{$course}{staff}[$i]};
                   my $fullname = &Apache::loncommon::plainname($uname,$udom);
                   my ($openblock,$closeblock) = @{$setters{$course}{times}[$i]};
                   $openblock = &Apache::lonlocal::locallocaltime($openblock);
                   $closeblock= &Apache::lonlocal::locallocaltime($closeblock);
                   $output .= &mt('Block for [_1] starts: [_2], ends [_3], set by: [_4]',$courseinfo{'description'},$openblock,$closeblock,$fullname).'<br />';
               }
           }
       } elsif ($by_ip) {
           $blocked = 1;
           my $showdom = &Apache::lonnet::domain($blockdom);
           if ($showdom eq '') {
               $showdom = $blockdom;
           }
           $output = &mt('Chat Room is unavailable from your current IP address: [_1], '
                        .'because communication is blocked for certain IP address(es).'
                        ,$clientip).
                     '<br />'.
                     &mt('This restriction was set by an administrator in the [_1] LON-CAPA domain.'
                        ,$showdom);
       }
       return ($blocked,$output);
   }
   
 1;  1;
 __END__  __END__
Removed from v.1.1  
changed lines
  Added in v.1.40

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