Return to lonmsg.pm CVS log

Up to [LON-CAPA] / loncom / interface

Trying to implement mail reader

    1: # The LearningOnline Network with CAPA
    2: #
    3: # Routines for messaging
    4: #
    5: # (Routines to control the menu
    6: #
    7: # (TeX Conversion Module
    8: #
    9: # 05/29/00,05/30 Gerd Kortemeyer)
   10: #
   11: # 10/05 Gerd Kortemeyer)
   12: #
   13: # 10/19,10/20,10/30,
   14: # 02/06/01 Gerd Kortemeyer
   15: 
   16: package Apache::lonmsg;
   17: 
   18: use strict;
   19: use Apache::lonnet();
   20: use vars qw($msgcount);
   21: use HTML::TokeParser;
   22: use Apache::Constants qw(:common);
   23: 
   24: # ===================================================================== Package
   25: 
   26: sub packagemsg {
   27:     my ($subject,$message)=@_;
   28:     $message=~s/\</\&lt\;/g;
   29:     $message=~s/\>/\&gt\;/g;
   30:     $subject=~s/\</\&lt\;/g;
   31:     $subject=~s/\>/\&gt\;/g;
   32:     my $now=time;
   33:     $msgcount++;
   34:     my $partsubj=$subject;
   35:     $partsubj=&Apache::lonnet::escape($partsubj);
   36:     $partsubj=substr($partsubj,0,50);
   37:     my $msgid=&Apache::lonnet::escape(
   38:            $now.':'.$partsubj.':'.$ENV{'user.name'}.':'.
   39:            $ENV{'user.domain'}.':'.$msgcount.':'.$$);
   40:     return $msgid,
   41:            '<sendername>'.$ENV{'user.name'}.'</sendername>'.
   42:            '<senderdomain>'.$ENV{'user.domain'}.'</senderdomain>'.
   43:            '<subject>'.$subject.'</subject>'.
   44: 	   '<time>'.localtime($now).'</time>'.
   45: 	   '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.
   46:            '<host>'.$ENV{'HTTP_HOST'}.'</host>'.
   47: 	   '<client>'.$ENV{'REMOTE_ADDR'}.'</client>'.
   48: 	   '<browsertype>'.$ENV{'browser.type'}.'</browsertype>'.
   49: 	   '<browseros>'.$ENV{'browser.os'}.'</browseros>'.
   50: 	   '<browserversion>'.$ENV{'browser.version'}.'</browserversion>'.
   51:            '<browsermathml>'.$ENV{'browser.mathml'}.'</browsermathml>'.
   52: 	   '<browserraw>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.
   53: 	   '<courseid>'.$ENV{'request.course.id'}.'</courseid>'.
   54: 	   '<role>'.$ENV{'request.role'}.'</role>'.
   55: 	   '<resource>'.$ENV{'request.filename'}.'</resource>'.
   56:            '<msgid>'.$msgid.'</msgid>'.
   57: 	   '<message>'.$message.'</message>';
   58: }
   59: 
   60: # ================================================== Unpack message into a hash
   61: 
   62: sub unpackagemsg {
   63:     my $message=shift;
   64:     my %content=();
   65:     my $parser=HTML::TokeParser->new(\$message);
   66:     my $token;
   67:     while ($token=$parser->get_token) {
   68:        if ($token->[0] eq 'S') {
   69: 	   my $entry=$token->[1];
   70:            my $value=$parser->get_text('/'.$entry);
   71:            $content{$entry}=$value;
   72:        }
   73:     }
   74:     return %content;
   75: }
   76: 
   77: # ======================================================= Get info out of msgid
   78: 
   79: sub unpackmsgid {
   80:     my $msgid=shift;
   81:     my ($sendtime,$shortsubj,$fromname,$fromdomain)=split(/\:/,
   82:                      &Apache::lonnet::unescape(
   83:                           &Apache::lonnet::unescape($_)));
   84:     my %status=&Apache::lonnet::get('email_status',$msgid);
   85:     if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
   86:     unless ($status{$msgid}) { $status{$msgid}='new'; }
   87:     return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid});
   88: } 
   89: 
   90: # =============================== Automated message to the author of a resource
   91: 
   92: sub author_res_msg {
   93:     my ($filename,$message)=@_;
   94:     unless ($message) { return 'empty'; }
   95:     $filename=&Apache::lonnet::declutter($filename);
   96:     my ($domain,$author,@dummy)=split(/\//,$filename);
   97:     my $homeserver=&Apache::lonnet::homeserver($author,$domain);
   98:     if ($homeserver ne 'no_host') {
   99:        my $id=unpack("%32C*",$message);
  100:        my $msgid;
  101:        ($msgid,$message)=&packagemsg($filename,$message);
  102:        return &Apache::lonnet::reply('put:'.$domain.':'.$author.
  103:          ':nohist_res_msgs:'.
  104:           &Apache::lonnet::escape($filename.'_'.$id).'='.
  105:           &Apache::lonnet::escape($message),$homeserver);
  106:     }
  107:     return 'no_host';
  108: }
  109: 
  110: # ================================================== Critical message to a user
  111: 
  112: sub user_crit_msg {
  113:     my ($user,$domain,$subject,$message)=@_;
  114: # Check if allowed missing
  115:     my $status='';
  116:     my $msgid='undefined';
  117:     unless (($message)&&($user)&&($domain)) { $status='empty'; };
  118:     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
  119:     if ($homeserver ne 'no_host') {
  120:        my $msgid;
  121:        ($msgid,$message)=&packagemsg($subject,$message);
  122:        $status=&Apache::lonnet::critical(
  123:            'put:'.$domain.':'.$user.':critical:'.
  124:            &Apache::lonnet::escape($msgid).'='.
  125:            &Apache::lonnet::escape($message),$homeserver);
  126:     } else {
  127:        $status='no_host';
  128:     }
  129:     &Apache::lonnet::logthis(
  130:       'Sending critical email '.$msgid.
  131:       ', log status: '.
  132:       &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
  133:                          $ENV{'user.home'},
  134:       'Sending critical '.$msgid.' to '.$user.' at '.$domain.' with status: '
  135:       .$status));
  136:     return $status;
  137: }
  138: 
  139: # =================================================== Critical message received
  140: 
  141: sub user_crit_received {
  142:     my $message=shift;
  143:     my %contents=&unpackagemsg($message);
  144:     my $status='rec: '.
  145:      &user_normal_msg($contents{'sendername'},$contents{'senderdomain'},
  146:                      'Receipt: '.$ENV{'user.name'}.' at '.$ENV{'user.domain'},
  147:                      'User '.$ENV{'user.name'}.' at '.$ENV{'user.domain'}.
  148:                      ' acknowledged receipt of message "'.
  149:                      $contents{'subject'}.'" dated '.$contents{'time'}.".\n\n"
  150:                      .'Message ID: '.$contents{'msgid'});
  151:     $status.=' trans: '.
  152:      &Apache::lonnet::put('nohist_email',$contents{'msgid'} => $message);
  153:     $status.=' del: '.
  154:      &Apache::lonnet::del('critical',$contents{'msgid'});
  155:     &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
  156:                          $ENV{'user.home'},'Received critical message '.
  157:                          $contents{'msgid'}.
  158:                          ', '.$status);
  159: }
  160: 
  161: # ======================================================== Normal communication
  162: 
  163: sub user_normal_msg {
  164:     my ($user,$domain,$subject,$message)=@_;
  165: # Check if allowed missing
  166:     my $status='';
  167:     my $msgid='undefined';
  168:     unless (($message)&&($user)&&($domain)) { $status='empty'; };
  169:     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
  170:     if ($homeserver ne 'no_host') {
  171:        my $msgid;
  172:        ($msgid,$message)=&packagemsg($subject,$message);
  173:        $status=&Apache::lonnet::critical(
  174:            'put:'.$domain.':'.$user.':nohist_email:'.
  175:            &Apache::lonnet::escape($msgid).'='.
  176:            &Apache::lonnet::escape($message),$homeserver);
  177:     } else {
  178:        $status='no_host';
  179:     }
  180:     &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
  181:                          $ENV{'user.home'},
  182:       'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
  183:     return $status;
  184: }
  185: 
  186: # ===================================================================== Handler
  187: 
  188: sub handler {
  189:     my $r=shift;
  190: 
  191: # ----------------------------------------------------------- Set document type
  192: 
  193:   $r->content_type('text/html');
  194:   $r->send_http_header;
  195: 
  196:   return OK if $r->header_only;
  197: 
  198: # --------------------------- Get query string for limited number of parameters
  199: 
  200:     map {
  201:        my ($name, $value) = split(/=/,$_);
  202:        $value =~ tr/+/ /;
  203:        $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
  204:        if (($name eq 'display') || ($name eq 'replyto') || 
  205:            ($name eq 'forward') || ($name eq 'mark')) {
  206:            unless ($ENV{'form.'.$name}) {
  207:               $ENV{'form.'.$name}=$value;
  208: 	   }
  209:        }
  210:     } (split(/&/,$ENV{'QUERY_STRING'}));
  211: 
  212: # --------------------------------------------------------------- Render Output
  213:   
  214:   $r->print('<html><head><title>EMail and Messaging</title></head>');
  215:   $r->print('<body bgcolor="#FFFFFF">');
  216:   $r->print('<h1>EMail</h1>');
  217:   if ($ENV{'form.display'}) {
  218:   } elsif ($ENV{'form.replyto'}) {
  219:   } elsif ($ENV{'form.forward'}) {
  220:   } elsif ($ENV{'form.mark'}) {
  221:   } else {
  222:     $r->print('<table border=2><tr><th>&nbsp</th><th>Date</th>'.
  223:      '<th>Username</th><th>Domain</th><th>Subject</th><th>Status</th></tr>');
  224:     map {
  225:         my ($sendtime,$shortsubj,$fromname,$fromdomain,$status)=
  226: 	    &Apache::lonmsg::unpackmsgid($_);
  227:         if ($status eq 'new') {
  228: 	    $r->print('<tr bgcolor="#FFBB77">');
  229:         } elsif ($status eq 'read') {
  230: 	    $r->print('<tr bgcolor="#BBBB77">');
  231:         } elsif ($status eq 'replied') {
  232: 	    $r->print('<tr bgcolor="#BBBB99">');
  233: 	} else {
  234: 	    $r->print('<tr bgcolor="#99BBBB">');
  235:         }
  236:         $r->print('<td><a href="/adm/email?display='.$_.
  237:                   '">Open</a></td><td>'.localtime($sendtime).'</td><td>'.
  238:                   $fromname.'</td><td>'.$fromdomain.'</td><td>'.
  239: 		      &Apache::lonnet::unescape($shortsubj).'</td><td>'.
  240:                       $status.'</td></tr>');
  241:     } sort split(/\&/,&Apache::lonnet::reply('keys:'.
  242: 					$ENV{'user.domain'}.':'.
  243:                                         $ENV{'user.name'}.':nohist_email',
  244:                                         $ENV{'user.home'}));
  245:     $r->print('</table></body></html>');
  246: 
  247:   }
  248:   $r->print('</body></html>');
  249:   return OK;
  250: 
  251: }
  252: # ================================================= Main program, reset counter
  253: 
  254: sub BEGIN {
  255:     $msgcount=0;
  256: }
  257: 
  258: 1;
  259: __END__
  260: 
  261: 
  262: 
  263: 
  264: 
  265: 
  266: