File:  [LON-CAPA] / loncom / interface / lonmsg.pm
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Thu Aug 16 01:42:07 2001 UTC (22 years, 10 months ago) by www
Branches: MAIN
CVS tags: HEAD
Mail from uploaded file

    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: # 07/27 Guy Albertelli
   16: # 07/27,07/28,07/30,08/03,08/06,08/08,08/09,08/10,8/13,8/15 Gerd Kortemeyer
   17: 
   18: package Apache::lonmsg;
   19: 
   20: use strict;
   21: use Apache::lonnet();
   22: use vars qw($msgcount);
   23: use HTML::TokeParser;
   24: use Apache::Constants qw(:common);
   25: 
   26: # ===================================================================== Package
   27: 
   28: sub packagemsg {
   29:     my ($subject,$message,$citation)=@_;
   30:     $message=~s/\</\&lt\;/g;
   31:     $message=~s/\>/\&gt\;/g;
   32:     $citation=~s/\</\&lt\;/g;
   33:     $citation=~s/\>/\&gt\;/g;
   34:     $subject=~s/\</\&lt\;/g;
   35:     $subject=~s/\>/\&gt\;/g;
   36:     my $now=time;
   37:     $msgcount++;
   38:     my $partsubj=$subject;
   39:     $partsubj=&Apache::lonnet::escape($partsubj);
   40:     $partsubj=substr($partsubj,0,50);
   41:     my $msgid=&Apache::lonnet::escape(
   42:            $now.':'.$partsubj.':'.$ENV{'user.name'}.':'.
   43:            $ENV{'user.domain'}.':'.$msgcount.':'.$$);
   44:     return $msgid,
   45:            '<sendername>'.$ENV{'user.name'}.'</sendername>'.
   46:            '<senderdomain>'.$ENV{'user.domain'}.'</senderdomain>'.
   47:            '<subject>'.$subject.'</subject>'.
   48: 	   '<time>'.localtime($now).'</time>'.
   49: 	   '<servername>'.$ENV{'SERVER_NAME'}.'</servername>'.
   50:            '<host>'.$ENV{'HTTP_HOST'}.'</host>'.
   51: 	   '<client>'.$ENV{'REMOTE_ADDR'}.'</client>'.
   52: 	   '<browsertype>'.$ENV{'browser.type'}.'</browsertype>'.
   53: 	   '<browseros>'.$ENV{'browser.os'}.'</browseros>'.
   54: 	   '<browserversion>'.$ENV{'browser.version'}.'</browserversion>'.
   55:            '<browsermathml>'.$ENV{'browser.mathml'}.'</browsermathml>'.
   56: 	   '<browserraw>'.$ENV{'HTTP_USER_AGENT'}.'</browserraw>'.
   57: 	   '<courseid>'.$ENV{'request.course.id'}.'</courseid>'.
   58: 	   '<role>'.$ENV{'request.role'}.'</role>'.
   59: 	   '<resource>'.$ENV{'request.filename'}.'</resource>'.
   60:            '<msgid>'.$msgid.'</msgid>'.
   61: 	   '<message>'.$message.'</message>'.
   62: 	   '<citation>'.$citation.'</citation>';
   63: }
   64: 
   65: # ================================================== Unpack message into a hash
   66: 
   67: sub unpackagemsg {
   68:     my $message=shift;
   69:     my %content=();
   70:     my $parser=HTML::TokeParser->new(\$message);
   71:     my $token;
   72:     while ($token=$parser->get_token) {
   73:        if ($token->[0] eq 'S') {
   74: 	   my $entry=$token->[1];
   75:            my $value=$parser->get_text('/'.$entry);
   76:            $content{$entry}=$value;
   77:        }
   78:     }
   79:     return %content;
   80: }
   81: 
   82: # ======================================================= Get info out of msgid
   83: 
   84: sub unpackmsgid {
   85:     my $msgid=&Apache::lonnet::unescape(shift);
   86:     my ($sendtime,$shortsubj,$fromname,$fromdomain)=split(/\:/,
   87:                           &Apache::lonnet::unescape($msgid));
   88:     my %status=&Apache::lonnet::get('email_status',[$msgid]);
   89:     if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
   90:     unless ($status{$msgid}) { $status{$msgid}='new'; }
   91:     return ($sendtime,$shortsubj,$fromname,$fromdomain,$status{$msgid});
   92: } 
   93: 
   94: # =============================== Automated message to the author of a resource
   95: 
   96: sub author_res_msg {
   97:     my ($filename,$message)=@_;
   98:     unless ($message) { return 'empty'; }
   99:     $filename=&Apache::lonnet::declutter($filename);
  100:     my ($domain,$author,@dummy)=split(/\//,$filename);
  101:     my $homeserver=&Apache::lonnet::homeserver($author,$domain);
  102:     if ($homeserver ne 'no_host') {
  103:        my $id=unpack("%32C*",$message);
  104:        my $msgid;
  105:        ($msgid,$message)=&packagemsg($filename,$message);
  106:        return &Apache::lonnet::reply('put:'.$domain.':'.$author.
  107:          ':nohist_res_msgs:'.
  108:           &Apache::lonnet::escape($filename.'_'.$id).'='.
  109:           &Apache::lonnet::escape($message),$homeserver);
  110:     }
  111:     return 'no_host';
  112: }
  113: 
  114: # ================================================== Critical message to a user
  115: 
  116: sub user_crit_msg {
  117:     my ($user,$domain,$subject,$message)=@_;
  118: # Check if allowed missing
  119:     my $status='';
  120:     my $msgid='undefined';
  121:     unless (($message)&&($user)&&($domain)) { $status='empty'; };
  122:     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
  123:     if ($homeserver ne 'no_host') {
  124:        ($msgid,$message)=&packagemsg($subject,$message);
  125:        $status=&Apache::lonnet::critical(
  126:            'put:'.$domain.':'.$user.':critical:'.
  127:            &Apache::lonnet::escape($msgid).'='.
  128:            &Apache::lonnet::escape($message),$homeserver);
  129:     } else {
  130:        $status='no_host';
  131:     }
  132:     &Apache::lonnet::logthis(
  133:       'Sending critical email '.$msgid.
  134:       ', log status: '.
  135:       &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
  136:                          $ENV{'user.home'},
  137:       'Sending critical '.$msgid.' to '.$user.' at '.$domain.' with status: '
  138:       .$status));
  139:     return $status;
  140: }
  141: 
  142: # =================================================== Critical message received
  143: 
  144: sub user_crit_received {
  145:     my $msgid=shift;
  146:     my %message=&Apache::lonnet::get('critical',[$msgid]);
  147:     my %contents=&unpackagemsg($message{$msgid});
  148:     my $status='rec: '.
  149:      &user_normal_msg($contents{'sendername'},$contents{'senderdomain'},
  150:                      'Receipt: '.$ENV{'user.name'}.' at '.$ENV{'user.domain'},
  151:                      'User '.$ENV{'user.name'}.' at '.$ENV{'user.domain'}.
  152:                      ' acknowledged receipt of message "'.
  153:                      $contents{'subject'}.'" dated '.$contents{'time'}.".\n\n"
  154:                      .'Message ID: '.$contents{'msgid'});
  155:     $status.=' trans: '.
  156:      &Apache::lonnet::put(
  157:      'nohist_email',{$contents{'msgid'} => $message{$msgid}});
  158:     $status.=' del: '.
  159:      &Apache::lonnet::del('critical',[$contents{'msgid'}]);
  160:     &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
  161:                          $ENV{'user.home'},'Received critical message '.
  162:                          $contents{'msgid'}.
  163:                          ', '.$status);
  164:     return $status;
  165: }
  166: 
  167: # ======================================================== Normal communication
  168: 
  169: sub user_normal_msg {
  170:     my ($user,$domain,$subject,$message,$citation)=@_;
  171: # Check if allowed missing
  172:     my $status='';
  173:     my $msgid='undefined';
  174:     unless (($message)&&($user)&&($domain)) { $status='empty'; };
  175:     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
  176:     if ($homeserver ne 'no_host') {
  177:        ($msgid,$message)=&packagemsg($subject,$message,$citation);
  178:        $status=&Apache::lonnet::critical(
  179:            'put:'.$domain.':'.$user.':nohist_email:'.
  180:            &Apache::lonnet::escape($msgid).'='.
  181:            &Apache::lonnet::escape($message),$homeserver);
  182:     } else {
  183:        $status='no_host';
  184:     }
  185:     &Apache::lonnet::log($ENV{'user.domain'},$ENV{'user.name'},
  186:                          $ENV{'user.home'},
  187:       'Sending '.$msgid.' to '.$user.' at '.$domain.' with status: '.$status);
  188:     return $status;
  189: }
  190: 
  191: # =============================================================== Status Change
  192: 
  193: sub statuschange {
  194:     my ($msgid,$newstatus)=@_;
  195:     my %status=&Apache::lonnet::get('email_status',[$msgid]);
  196:     if ($status{$msgid}=~/^error\:/) { $status{$msgid}=''; }
  197:     unless ($status{$msgid}) { $status{$msgid}='new'; }
  198:     unless (($status{$msgid} eq 'replied') || 
  199:             ($status{$msgid} eq 'forwarded')) {
  200: 	&Apache::lonnet::put('email_status',{$msgid => $newstatus});
  201:     }
  202:     if (($newstatus eq 'deleted') || ($newstatus eq 'new')) {
  203: 	&Apache::lonnet::put('email_status',{$msgid => $newstatus});
  204:     }
  205: }
  206: 
  207: # ======================================================= Display a course list
  208: 
  209: sub discourse {
  210:     my $r=shift;
  211:     my %courselist=&Apache::lonnet::dump(
  212:                    'classlist',
  213: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
  214: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
  215:     my $now=time;
  216:     $r->print(<<ENDDISHEADER);
  217: <input type=hidden name=sendmode value=group>
  218: <script>
  219:     function checkall() {
  220: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  221:             if 
  222:           (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
  223: 	      document.forms.compemail.elements[i].checked=true;
  224:             }
  225:         }
  226:     }
  227: 
  228:     function checksec() {
  229: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  230:             if 
  231:           (document.forms.compemail.elements[i].name.indexOf
  232:            ('send_to_&&&'+document.forms.compemail.chksec.value)==0) {
  233: 	      document.forms.compemail.elements[i].checked=true;
  234:             }
  235:         }
  236:     }
  237: 
  238:     function uncheckall() {
  239: 	for (i=0; i<document.forms.compemail.elements.length; i++) {
  240:             if 
  241:           (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
  242: 	      document.forms.compemail.elements[i].checked=false;
  243:             }
  244:         }
  245:     }
  246: </script>
  247: <input type=button onClick="checkall()" value="Check for All">&nbsp;
  248: <input type=button onClick="checksec()" value="Check for Section/Group">
  249: <input type=text size=5 name=chksec>&nbsp;
  250: <input type=button onClick="uncheckall()" value="Check for None">
  251: <p>
  252: ENDDISHEADER
  253:     map {
  254:         my ($end,$start)=split(/\:/,$courselist{$_});
  255:         my $active=1;
  256:         if (($end) && ($now>$end)) { $active=0; }
  257:         if ($active) {
  258:            my ($sname,$sdom)=split(/\:/,$_);
  259:            my %reply=&Apache::lonnet::get('environment',
  260:               ['firstname','middlename','lastname','generation'],
  261:               $sdom,$sname);
  262:            my $section=&Apache::lonnet::usection
  263: 	       ($sdom,$sname,$ENV{'request.course.id'});
  264:            $r->print(
  265:         '<br><input type=checkbox name="send_to_&&&'.$section.'&&&_'.$_.'"> '.
  266: 		      $reply{'firstname'}.' '. 
  267:                       $reply{'middlename'}.' '.
  268:                       $reply{'lastname'}.' '.
  269:                       $reply{'generation'}.
  270:                       ' ('.$_.') '.$section);
  271:         } 
  272:     } sort keys %courselist;
  273: }
  274: 
  275: # ==================================================== Display Critical Message
  276: 
  277: sub discrit {
  278:     my $r=shift;
  279:       $r->print('<h1><font color=red>Critical Messages</font></h1>'.
  280:          '<form action=/adm/email method=post>'.
  281:          '<input type=hidden name=confirm value=true>');
  282:       my %what=&Apache::lonnet::dump('critical');
  283:       map {
  284:           my %content=&unpackagemsg($what{$_});
  285:           $content{'message'}=~s/\n/\<br\>/g;
  286: 	  $r->print('<hr>From: <b>'.$content{'sendername'}.'@'.
  287:                     $content{'senderdomain'}.'</b> ('.$content{'time'}.
  288:                     ')<br><blockquote>'.$content{'message'}.'</blockquote>'.
  289:   '<input type=submit name="rec_'.$_.'" value="Confirm Receipt">'.
  290:  '<input type=submit name="reprec_'.$_.'" value="Confirm Receipt and Reply">');
  291:       } sort keys %what;
  292:       $r->print(
  293:           '<input type=hidden name="displayedcrit" value="true"></form>');
  294: }
  295: 
  296: # =============================================================== Compose reply
  297: 
  298: sub comprep {
  299:     my ($r,$msgid)=@_;
  300:       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
  301:       my %content=&unpackagemsg($message{$msgid});
  302:       my $quotemsg='> '.$content{'message'};
  303:       $quotemsg=~s/\r/\n/g;
  304:       $quotemsg=~s/\f/\n/g;
  305:       $quotemsg=~s/\n+/\n\> /g;
  306:       my $subject='Re: '.$content{'subject'};
  307:       my $dispcrit='';
  308:       if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
  309:          $dispcrit=
  310: 	     '<input type=checkbox name=critmsg> Send as critical message<p>';
  311:       }
  312:       $r->print(<<"ENDREPLY");
  313: <form action="/adm/email" method=post>
  314: <input type=hidden name=sendreply value="$msgid">
  315: Subject: <input type=text size=50 name=subject value="$subject"><p>
  316: <textarea name=message cols=60 rows=10>
  317: $quotemsg
  318: </textarea><p>
  319: $dispcrit
  320: <input type=submit value="Send Reply">
  321: </form>
  322: ENDREPLY
  323: }
  324: 
  325: # ======================================================== Display all messages
  326: 
  327: sub disall {
  328:     my $r=shift;
  329:     $r->print('<h1>Display All Messages</h1>'.
  330:      '<table border=2><tr><th colspan=2>&nbsp</th><th>Date</th>'.
  331:      '<th>Username</th><th>Domain</th><th>Subject</th><th>Status</th></tr>');
  332:     map {
  333:         my ($sendtime,$shortsubj,$fromname,$fromdomain,$status)=
  334: 	    &Apache::lonmsg::unpackmsgid($_);
  335:        unless ($status eq 'deleted') {
  336:         if ($status eq 'new') {
  337: 	    $r->print('<tr bgcolor="#FFBB77">');
  338:         } elsif ($status eq 'read') {
  339: 	    $r->print('<tr bgcolor="#BBBB77">');
  340:         } elsif ($status eq 'replied') {
  341: 	    $r->print('<tr bgcolor="#AAAA88">');
  342: 	} else {
  343: 	    $r->print('<tr bgcolor="#99BBBB">');
  344:         }
  345:         $r->print('<td><a href="/adm/email?display='.$_.
  346:                   '">Open</a></td><td><a href="/adm/email?markdel='.$_.
  347:                   '">Delete</a></td><td>'.localtime($sendtime).'</td><td>'.
  348:                   $fromname.'</td><td>'.$fromdomain.'</td><td>'.
  349: 		      &Apache::lonnet::unescape($shortsubj).'</td><td>'.
  350:                       $status.'</td></tr>');
  351:        }
  352:     } sort split(/\&/,&Apache::lonnet::reply('keys:'.
  353: 					$ENV{'user.domain'}.':'.
  354:                                         $ENV{'user.name'}.':nohist_email',
  355:                                         $ENV{'user.home'}));
  356:     $r->print('</table></body></html>');
  357: }
  358: 
  359: # ============================================================== Compose output
  360: 
  361: sub compout {
  362:     my ($r,$forwarding,$broadcast)=@_;
  363:       my $dispcrit='';
  364:     my $dissub='';
  365:     my $dismsg='';
  366:     my $func='Send New';
  367:       if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
  368:          $dispcrit=
  369: 	     '<input type=checkbox name=critmsg> Send as critical message<p>';
  370:       }
  371:     if ($forwarding) {
  372:        $dispcrit.='<input type=hidden name=forwid value="'.
  373: 	   $forwarding.'">';
  374:        $func='Forward';
  375:       my %message=&Apache::lonnet::get('nohist_email',[$forwarding]);
  376:       my %content=&unpackagemsg($message{$forwarding});
  377: 
  378:        $dissub='Forwarding: '.$content{'subject'};
  379:        $dismsg='Forwarded message from '.
  380: 	   $content{'sendername'}.' at '.$content{'senderdomain'};
  381:     }
  382:     my $defdom=$ENV{'user.domain'};
  383:       $r->print(
  384:                 '<form action="/adm/email"  name="compemail" method=post'.
  385:                 ' enctype="multipart/form-data">'.
  386:                 '<input type=hidden name=sendmail value=on><table>');
  387:     unless (($broadcast eq 'group') || ($broadcast eq 'upload')) {
  388:        $r->print(<<"ENDREC");
  389: <table>
  390: <tr><td>Username:</td><td><input type=text size=12 name=recuname></td></tr>
  391: <tr><td>Domain:</td>
  392: <td><input type=text size=12 name=recdomain value="$defdom"></td></tr>
  393: ENDREC
  394:     }
  395:     unless ($broadcast eq 'upload') {
  396:        $r->print(<<"ENDCOMP");
  397: <tr><td>Additional Recipients<br><tt>username\@domain,username\@domain, ...
  398: </tt></td><td>
  399: <input type=text size=50 name=additionalrec></td></tr>
  400: <tr><td>Subject:</td><td><input type=text size=50 name=subject value="$dissub">
  401: </td></tr></table>
  402: <textarea name=message cols=60 rows=10>$dismsg
  403: </textarea><p>
  404: $dispcrit
  405: <input type=submit value="$func Mail">
  406: ENDCOMP
  407:     }
  408:     if ($broadcast eq 'upload') {
  409: 	$r->print(<<ENDUPLOAD);
  410: <input type=hidden name=sendmode value=upload>
  411: <h3>Generate messages from a file</h3>
  412: Subject: <input type=text size=50 name=subject>
  413: <pre>
  414: username1\@domain1: text
  415: username2\@domain2: text
  416: username1\@domain1: text
  417: </pre>
  418: The messages will be assembled from all lines with the respective 
  419: <tt>username\@domain</tt>, and appended to the general message text.<p>
  420: <input type=file name=upfile size=20><p>
  421: General message text:<p>
  422: <textarea name=message cols=60 rows=10>$dismsg
  423: </textarea><p>
  424: $dispcrit
  425: <input type=submit value="Upload and send">
  426: ENDUPLOAD
  427:     }
  428:     if ($broadcast eq 'group') {
  429:        &discourse;
  430:     }
  431:     $r->print('</form>');
  432: }
  433: 
  434: # ===================================================================== Handler
  435: 
  436: sub handler {
  437:     my $r=shift;
  438: 
  439: # ----------------------------------------------------------- Set document type
  440: 
  441:   $r->content_type('text/html');
  442:   $r->send_http_header;
  443: 
  444:   return OK if $r->header_only;
  445: 
  446: # --------------------------- Get query string for limited number of parameters
  447: 
  448:     map {
  449:        my ($name, $value) = split(/=/,$_);
  450:        $value =~ tr/+/ /;
  451:        $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
  452:        if (($name eq 'display') || ($name eq 'replyto') || 
  453:            ($name eq 'forward') || ($name eq 'markread') ||
  454:            ($name eq 'markdel') || ($name eq 'markunread') ||
  455:            ($name eq 'sendreply') || ($name eq 'compose') ||
  456:            ($name eq 'sendmail') || ($name eq 'critical')) {
  457:            unless ($ENV{'form.'.$name}) {
  458:               $ENV{'form.'.$name}=$value;
  459: 	   }
  460:        }
  461:     } (split(/&/,$ENV{'QUERY_STRING'}));
  462: 
  463: # --------------------------------------------------------------- Render Output
  464:   
  465:   $r->print('<html><head><title>EMail and Messaging</title></head>');
  466:   $r->print(
  467:    '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
  468:   $r->print('<h1>EMail</h1>');
  469:   if ($ENV{'form.display'}) {
  470:       my $msgid=$ENV{'form.display'};
  471:       &statuschange($msgid,'read');
  472:       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
  473:       my %content=&unpackagemsg($message{$msgid});
  474:       $r->print('<b>Subject:</b> '.$content{'subject'}.
  475:              '<br><b>From:</b> '.$content{'sendername'}.' at '.
  476:                                  $content{'senderdomain'}.
  477:              '<br><b>Time:</b> '.$content{'time'}.'<p>'.
  478:              '<table border=2><tr bgcolor="#FFFFAA"><td>Functions:</td>'.
  479:            '<td><a href="/adm/email?replyto='.&Apache::lonnet::escape($msgid).
  480:              '"><b>Reply</b></a></td>'.
  481:            '<td><a href="/adm/email?forward='.&Apache::lonnet::escape($msgid).
  482:              '"><b>Forward</b></a></td>'.
  483:         '<td><a href="/adm/email?markunread='.&Apache::lonnet::escape($msgid).
  484:              '"><b>Mark Unread</b></a></td>'.
  485:         '<td><a href="/adm/email"><b>Display all Messages</b></a></td>'.
  486:              '</tr></table><p><pre>'.
  487:              $content{'message'}.'</pre><hr>'.$content{'citation'});
  488:   } elsif ($ENV{'form.replyto'}) {
  489:       &comprep($r,$ENV{'form.replyto'});
  490:   } elsif ($ENV{'form.sendreply'}) {
  491:       my $msgid=$ENV{'form.sendreply'};
  492:       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
  493:       my %content=&unpackagemsg($message{$msgid});
  494:       &statuschange($msgid,'replied');
  495:       if (($ENV{'form.critmsg'}) && 
  496:           (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
  497:          $r->print('Sending critical: '.
  498:                 &user_crit_msg($content{'sendername'},
  499:                                  $content{'senderdomain'},
  500:                                  $ENV{'form.subject'},
  501:                                  $ENV{'form.message'}));
  502:       } else {
  503:          $r->print('Sending: '.&user_normal_msg($content{'sendername'},
  504:                                  $content{'senderdomain'},
  505:                                  $ENV{'form.subject'},
  506:                                  $ENV{'form.message'}));
  507:       }
  508:       if ($ENV{'form.displayedcrit'}) {
  509:           &discrit($r);
  510:       } else {
  511: 	  &disall($r);
  512:       }
  513:   } elsif ($ENV{'form.confirm'}) {
  514:       map {
  515:           if ($_=~/^form\.rec\_(.*)$/) {
  516: 	      $r->print('<b>Confirming Receipt:</b> '.
  517:                         &user_crit_received($1).'<br>');
  518:           }
  519:           if ($_=~/^form\.reprec\_(.*)$/) {
  520:               my $msgid=$1;
  521: 	      $r->print('<b>Confirming Receipt:</b> '.
  522:                         &user_crit_received($msgid).'<br>');
  523:               &comprep($r,$msgid);
  524:           }
  525:       } keys %ENV;
  526:       &discrit($r);
  527:   } elsif ($ENV{'form.critical'}) {
  528:       &discrit($r);
  529:   } elsif ($ENV{'form.forward'}) {
  530:       &compout($r,$ENV{'form.forward'});
  531:   } elsif ($ENV{'form.markread'}) {
  532:   } elsif ($ENV{'form.markdel'}) {
  533:       &statuschange($ENV{'form.markdel'},'deleted');
  534:       &disall($r);
  535:   } elsif ($ENV{'form.markunread'}) {
  536:       &statuschange($ENV{'form.markunread'},'new');
  537:       &disall($r);
  538:   } elsif ($ENV{'form.compose'}) {
  539:       &compout($r,'',$ENV{'form.compose'});
  540:   } elsif ($ENV{'form.sendmail'}) {
  541:       my %content=();
  542:       undef %content;
  543:       if ($ENV{'form.forwid'}) {
  544:         my $msgid=$ENV{'form.forwid'};
  545:         my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
  546:         %content=&unpackagemsg($message{$msgid});
  547:         &statuschange($msgid,'forwarded');
  548:         $ENV{'form.message'}.="\n\n-- Forwarded message --\n\n".
  549: 	                       $content{'message'};
  550:       }
  551:       my %toaddr=();
  552:       undef %toaddr;
  553:       if ($ENV{'form.sendmode'} eq 'group') {
  554:           map {
  555: 	      if ($_=~/^form\.send\_to\_\&\&\&[^\&]*\&\&\&\_(.+)$/) {
  556: 		  $toaddr{$1}='';
  557:               }
  558:           } keys %ENV;
  559:       } elsif ($ENV{'form.sendmode'} eq 'upload') {
  560:           map {
  561:               my ($rec,$txt)=split(/\s*\:\s*/,$_);
  562:               if ($txt) {
  563: 		  $rec=~s/\@/\:/;
  564:                   $toaddr{$rec}.=$txt."\n";
  565:               }
  566:           } split(/[\n\r\f]+/,$ENV{'form.upfile'});
  567:       } else {
  568: 	  $toaddr{$ENV{'form.recuname'}.':'.$ENV{'form.recdomain'}}='';
  569:       }
  570:       if ($ENV{'form.additionalrec'}) {
  571: 	  map {
  572:               my ($auname,$audom)=split(/\@/,$_);
  573:               $toaddr{$auname.':'.$audom}='';
  574:           } split(/\,/,$ENV{'form.additionalrec'});
  575:       }
  576:     map {
  577:       my ($recuname,$recdomain)=split(/\:/,$_);
  578:       my $msgtxt=$ENV{'form.message'};
  579:       if ($toaddr{$_}) { $msgtxt.='<hr>'.$toaddr{$_}; }    
  580:       if (($ENV{'form.critmsg'}) && 
  581:           (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
  582:          $r->print('Sending critical: '.
  583:                 &user_crit_msg($recuname,$recdomain,
  584:                                  $ENV{'form.subject'},
  585:                                  $msgtxt,
  586:                                  $content{'citation'}));
  587:       } else {
  588:          $r->print('Sending: '.&user_normal_msg($recuname,$recdomain,
  589:                                  $ENV{'form.subject'},
  590:                                  $msgtxt,
  591:                                  $content{'citation'}));
  592:       }
  593:       $r->print('<br>');
  594:     } keys %toaddr;
  595:       if ($ENV{'form.displayedcrit'}) {
  596:           &discrit($r);
  597:       } else {
  598: 	  &disall($r);
  599:       }
  600:   } else {
  601:       &disall($r);
  602:   }
  603:   $r->print('</body></html>');
  604:   return OK;
  605: 
  606: }
  607: # ================================================= Main program, reset counter
  608: 
  609: sub BEGIN {
  610:     $msgcount=0;
  611: }
  612: 
  613: 1;
  614: __END__
  615: 
  616: 
  617: 
  618: 
  619: 
  620: 
  621: 

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