--- loncom/interface/lonmsg.pm	2001/08/06 11:41:11	1.16
+++ loncom/interface/lonmsg.pm	2002/06/26 20:41:55	1.34
@@ -1,7 +1,31 @@
 # The LearningOnline Network with CAPA
-#
 # Routines for messaging
 #
+# $Id: lonmsg.pm,v 1.34 2002/06/26 20:41:55 www Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+#
 # (Routines to control the menu
 #
 # (TeX Conversion Module
@@ -13,8 +37,11 @@
 # 10/19,10/20,10/30,
 # 02/06/01 Gerd Kortemeyer
 # 07/27 Guy Albertelli
-# 07/27,07/28,07/30,08/03,08/06 Gerd Kortemeyer
-
+# 07/27,07/28,07/30,08/03,08/06,08/08,08/09,08/10,8/13,8/15,
+# 10/1,11/5 Gerd Kortemeyer
+# YEAR=2002
+# 1/1,3/18 Gerd Kortemeyer
+#
 package Apache::lonmsg;
 
 use strict;
@@ -37,7 +64,6 @@ sub packagemsg {
     $msgcount++;
     my $partsubj=$subject;
     $partsubj=&Apache::lonnet::escape($partsubj);
-    $partsubj=substr($partsubj,0,50);
     my $msgid=&Apache::lonnet::escape(
            $now.':'.$partsubj.':'.$ENV{'user.name'}.':'.
            $ENV{'user.domain'}.':'.$msgcount.':'.$$);
@@ -114,15 +140,15 @@ sub author_res_msg {
 # ================================================== Critical message to a user
 
 sub user_crit_msg {
-    my ($user,$domain,$subject,$message)=@_;
+    my ($user,$domain,$subject,$message,$sendback)=@_;
 # Check if allowed missing
     my $status='';
     my $msgid='undefined';
     unless (($message)&&($user)&&($domain)) { $status='empty'; };
     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
     if ($homeserver ne 'no_host') {
-       my $msgid;
        ($msgid,$message)=&packagemsg($subject,$message);
+       if ($sendback) { $message.='<sendback>true</sendback>'; }
        $status=&Apache::lonnet::critical(
            'put:'.$domain.':'.$user.':critical:'.
            &Apache::lonnet::escape($msgid).'='.
@@ -146,13 +172,13 @@ sub user_crit_received {
     my $msgid=shift;
     my %message=&Apache::lonnet::get('critical',[$msgid]);
     my %contents=&unpackagemsg($message{$msgid});
-    my $status='rec: '.
+    my $status='rec: '.($contents{'sendback'}?
      &user_normal_msg($contents{'sendername'},$contents{'senderdomain'},
                      'Receipt: '.$ENV{'user.name'}.' at '.$ENV{'user.domain'},
                      'User '.$ENV{'user.name'}.' at '.$ENV{'user.domain'}.
                      ' acknowledged receipt of message "'.
                      $contents{'subject'}.'" dated '.$contents{'time'}.".\n\n"
-                     .'Message ID: '.$contents{'msgid'});
+                     .'Message ID: '.$contents{'msgid'}):'no msg req');
     $status.=' trans: '.
      &Apache::lonnet::put(
      'nohist_email',{$contents{'msgid'} => $message{$msgid}});
@@ -175,7 +201,6 @@ sub user_normal_msg {
     unless (($message)&&($user)&&($domain)) { $status='empty'; };
     my $homeserver=&Apache::lonnet::homeserver($user,$domain);
     if ($homeserver ne 'no_host') {
-       my $msgid;
        ($msgid,$message)=&packagemsg($subject,$message,$citation);
        $status=&Apache::lonnet::critical(
            'put:'.$domain.':'.$user.':nohist_email:'.
@@ -206,25 +231,103 @@ sub statuschange {
     }
 }
 
+# ======================================================= Display a course list
+
+sub discourse {
+    my $r=shift;
+    my %courselist=&Apache::lonnet::dump(
+                   'classlist',
+		   $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
+		   $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
+    my $now=time;
+    $r->print(<<ENDDISHEADER);
+<input type=hidden name=sendmode value=group>
+<script>
+    function checkall() {
+	for (i=0; i<document.forms.compemail.elements.length; i++) {
+            if 
+          (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
+	      document.forms.compemail.elements[i].checked=true;
+            }
+        }
+    }
+
+    function checksec() {
+	for (i=0; i<document.forms.compemail.elements.length; i++) {
+            if 
+          (document.forms.compemail.elements[i].name.indexOf
+           ('send_to_&&&'+document.forms.compemail.chksec.value)==0) {
+	      document.forms.compemail.elements[i].checked=true;
+            }
+        }
+    }
+
+    function uncheckall() {
+	for (i=0; i<document.forms.compemail.elements.length; i++) {
+            if 
+          (document.forms.compemail.elements[i].name.indexOf('send_to_')==0) {
+	      document.forms.compemail.elements[i].checked=false;
+            }
+        }
+    }
+</script>
+<input type=button onClick="checkall()" value="Check for All">&nbsp;
+<input type=button onClick="checksec()" value="Check for Section/Group">
+<input type=text size=5 name=chksec>&nbsp;
+<input type=button onClick="uncheckall()" value="Check for None">
+<p>
+ENDDISHEADER
+    foreach (sort keys %courselist) {
+        my ($end,$start)=split(/\:/,$courselist{$_});
+        my $active=1;
+        if (($end) && ($now>$end)) { $active=0; }
+        if ($active) {
+           my ($sname,$sdom)=split(/\:/,$_);
+           my %reply=&Apache::lonnet::get('environment',
+              ['firstname','middlename','lastname','generation'],
+              $sdom,$sname);
+           my $section=&Apache::lonnet::usection
+	       ($sdom,$sname,$ENV{'request.course.id'});
+           $r->print(
+        '<br><input type=checkbox name="send_to_&&&'.$section.'&&&_'.$_.'"> '.
+		      $reply{'firstname'}.' '. 
+                      $reply{'middlename'}.' '.
+                      $reply{'lastname'}.' '.
+                      $reply{'generation'}.
+                      ' ('.$_.') '.$section);
+        } 
+    }
+}
+
 # ==================================================== Display Critical Message
 
 sub discrit {
     my $r=shift;
-      $r->print('<h1><font color=red>Critical Messages</font></h1>'.
-         '<form action=/adm/email method=post>'.
-         '<input type=hidden name=confirm value=true>');
-      my %what=&Apache::lonnet::dump('critical');
-      map {
-          my %content=&unpackagemsg($what{$_});
-          $content{'message'}=~s/\n/\<br\>/g;
-	  $r->print('<hr>From: <b>'.$content{'sendername'}.'@'.
-                    $content{'senderdomain'}.'</b> ('.$content{'time'}.
-                    ')<br><blockquote>'.$content{'message'}.'</blockquote>'.
-  '<input type=submit name="rec_'.$_.'" value="Confirm Receipt">'.
- '<input type=submit name="reprec_'.$_.'" value="Confirm Receipt and Reply">');
-      } sort keys %what;
-      $r->print(
-          '<input type=hidden name="displayedcrit" value="true"></form>');
+    my $header = '<h1><font color=red>Critical Messages</font></h1>'.
+        '<form action=/adm/email method=post>'.
+        '<input type=hidden name=confirm value=true>';
+    my %what=&Apache::lonnet::dump('critical');
+    my $result = '';
+    foreach (sort keys %what) {
+        my %content=&unpackagemsg($what{$_});
+        next if ($content{'senderdomain'} eq '');
+        $content{'message'}=~s/\n/\<br\>/g;
+        $result.='<hr>From: <b>'.$content{'sendername'}.'@'.
+            $content{'senderdomain'}.'</b> ('.$content{'time'}.
+            ')<br>Subject: '.$content{'subject'}.
+            '<br><blockquote>'.$content{'message'}.'</blockquote>'.
+            '<input type=submit name="rec_'.$_.'" value="Confirm Receipt">'.
+            '<input type=submit name="reprec_'.$_.'" '.
+                  'value="Confirm Receipt and Reply">';
+    }
+    # Check to see if there were any messages.
+    if ($result eq '') {
+        $result = "<h2>You have no critical messages.</h2>";
+    } else {
+        $r->print($header);
+    }
+    $r->print($result);
+    $r->print('<input type=hidden name="displayedcrit" value="true"></form>');
 }
 
 # =============================================================== Compose reply
@@ -241,13 +344,15 @@ sub comprep {
       my $dispcrit='';
       if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
          $dispcrit=
-	     '<input type=checkbox name=critmsg> Send as critical message<p>';
+ '<input type=checkbox name=critmsg> Send as critical message<br>'.
+ '<input type=checkbox name=sendbck> Send as critical message'.
+ ' and return receipt<p>';
       }
       $r->print(<<"ENDREPLY");
 <form action="/adm/email" method=post>
 <input type=hidden name=sendreply value="$msgid">
 Subject: <input type=text size=50 name=subject value="$subject"><p>
-<textarea name=message cols=60 rows=10>
+<textarea name=message cols=64 rows=10 wrap=hard>
 $quotemsg
 </textarea><p>
 $dispcrit
@@ -260,13 +365,39 @@ ENDREPLY
 
 sub disall {
     my $r=shift;
-    $r->print('<h1>Display All Messages</h1>'.
+     $r->print(<<ENDDISHEADER);
+<script>
+    function checkall() {
+	for (i=0; i<document.forms.disall.elements.length; i++) {
+            if 
+          (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
+	      document.forms.disall.elements[i].checked=true;
+            }
+        }
+    }
+
+    function uncheckall() {
+	for (i=0; i<document.forms.disall.elements.length; i++) {
+            if 
+          (document.forms.disall.elements[i].name.indexOf('delmark_')==0) {
+	      document.forms.disall.elements[i].checked=false;
+            }
+        }
+    }
+</script>
+ENDDISHEADER
+   $r->print(
+ '<h1>Display All Messages</h1><form method=post name=disall '.
+ 'action="/adm/email">'.
      '<table border=2><tr><th colspan=2>&nbsp</th><th>Date</th>'.
      '<th>Username</th><th>Domain</th><th>Subject</th><th>Status</th></tr>');
-    map {
+    foreach (sort split(/\&/,&Apache::lonnet::reply('keys:'.
+					$ENV{'user.domain'}.':'.
+                                        $ENV{'user.name'}.':nohist_email',
+                                        $ENV{'user.home'}))) {
         my ($sendtime,$shortsubj,$fromname,$fromdomain,$status)=
 	    &Apache::lonmsg::unpackmsgid($_);
-       unless ($status eq 'deleted') {
+       unless (($status eq 'deleted') || ($sendtime=~/error/)) {
         if ($status eq 'new') {
 	    $r->print('<tr bgcolor="#FFBB77">');
         } elsif ($status eq 'read') {
@@ -278,29 +409,33 @@ sub disall {
         }
         $r->print('<td><a href="/adm/email?display='.$_.
                   '">Open</a></td><td><a href="/adm/email?markdel='.$_.
-                  '">Delete</a></td><td>'.localtime($sendtime).'</td><td>'.
+                '">Delete</a><input type=checkbox name="delmark_'.$_.'"></td>'.
+                  '<td>'.localtime($sendtime).'</td><td>'.
                   $fromname.'</td><td>'.$fromdomain.'</td><td>'.
 		      &Apache::lonnet::unescape($shortsubj).'</td><td>'.
                       $status.'</td></tr>');
        }
-    } sort split(/\&/,&Apache::lonnet::reply('keys:'.
-					$ENV{'user.domain'}.':'.
-                                        $ENV{'user.name'}.':nohist_email',
-                                        $ENV{'user.home'}));
-    $r->print('</table></body></html>');
+    }
+    $r->print('</table><p>'.
+              '<a href="javascript:checkall()">Check All</a>&nbsp;'.
+              '<a href="javascript:uncheckall()">Uncheck All</a><p>'.
+              '<input type=submit name="markeddel" value="Delete Checked">'.
+              '</form></body></html>');
 }
 
 # ============================================================== Compose output
 
 sub compout {
-    my ($r,$forwarding)=@_;
+    my ($r,$forwarding,$broadcast)=@_;
       my $dispcrit='';
     my $dissub='';
     my $dismsg='';
     my $func='Send New';
       if (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'})) {
          $dispcrit=
-	     '<input type=checkbox name=critmsg> Send as critical message<p>';
+ '<input type=checkbox name=critmsg> Send as critical message<br>'.
+ '<input type=checkbox name=sendbck> Send as critical message'.
+ ' and return receipt<p>';
       }
     if ($forwarding) {
        $dispcrit.='<input type=hidden name=forwid value="'.
@@ -314,21 +449,64 @@ sub compout {
 	   $content{'sendername'}.' at '.$content{'senderdomain'};
     }
     my $defdom=$ENV{'user.domain'};
-      $r->print(<<"ENDCOMP");
-<form action="/adm/email" method=post>
-<input type=hidden name=sendmail value=on>
+      $r->print(
+                '<form action="/adm/email"  name="compemail" method="post"'.
+                ' enctype="multipart/form-data">'."\n".
+                '<input type="hidden" name="sendmail" value="on">'."\n".
+                '<table>');
+    unless (($broadcast eq 'group') || ($broadcast eq 'upload')) {
+        my $domform = &Apache::loncommon::select_dom_form($defdom,'recdomain');
+
+       $r->print(<<"ENDREC");
 <table>
 <tr><td>Username:</td><td><input type=text size=12 name=recuname></td></tr>
 <tr><td>Domain:</td>
-<td><input type=text size=12 name=recdomain value="$defdom"></td></tr>
+<td>$domform</td></tr>
+ENDREC
+    }
+    if ($broadcast ne 'upload') {
+       $r->print(<<"ENDCOMP");
+<tr><td>Additional Recipients<br><tt>username\@domain,username\@domain, ...
+</tt></td><td>
+<input type=text size=50 name=additionalrec></td></tr>
 <tr><td>Subject:</td><td><input type=text size=50 name=subject value="$dissub">
 </td></tr></table>
-<textarea name=message cols=60 rows=10>$dismsg
+<textarea name=message cols=60 rows=10 wrap=hard>$dismsg
 </textarea><p>
 $dispcrit
 <input type=submit value="$func Mail">
-</form>
 ENDCOMP
+    } else { # $broadcast is 'upload'
+	$r->print(<<ENDUPLOAD);
+<input type=hidden name=sendmode value=upload>
+<h3>Generate messages from a file</h3>
+<p>
+Subject: <input type=text size=50 name=subject>
+</p>
+<p>General message text<br />
+<textarea name=message cols=60 rows=10 wrap=hard>$dismsg
+</textarea></p>
+<p>
+The file format for the uploaded portion of the message is:
+<pre>
+username1\@domain1: text
+username2\@domain2: text
+username3\@domain1: text
+</pre>
+</p>
+<p>
+The messages will be assembled from all lines with the respective 
+<tt>username\@domain</tt>, and appended to the general message text.</p>
+<p>
+<input type=file name=upfile size=20><p>
+$dispcrit
+<input type=submit value="Upload and send">
+ENDUPLOAD
+    }
+    if ($broadcast eq 'group') {
+       &discourse;
+    }
+    $r->print('</form>');
 }
 
 # ===================================================================== Handler
@@ -344,21 +522,9 @@ sub handler {
   return OK if $r->header_only;
 
 # --------------------------- Get query string for limited number of parameters
-
-    map {
-       my ($name, $value) = split(/=/,$_);
-       $value =~ tr/+/ /;
-       $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
-       if (($name eq 'display') || ($name eq 'replyto') || 
-           ($name eq 'forward') || ($name eq 'markread') ||
-           ($name eq 'markdel') || ($name eq 'markunread') ||
-           ($name eq 'sendreply') || ($name eq 'compose') ||
-           ($name eq 'sendmail') || ($name eq 'critical')) {
-           unless ($ENV{'form.'.$name}) {
-              $ENV{'form.'.$name}=$value;
-	   }
-       }
-    } (split(/&/,$ENV{'QUERY_STRING'}));
+    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+        ['display','replyto','forward','markread','markdel','markunread',
+         'sendreply','compose','sendmail','critical']);
 
 # --------------------------------------------------------------- Render Output
   
@@ -392,13 +558,14 @@ sub handler {
       my %message=&Apache::lonnet::get('nohist_email',[$msgid]);
       my %content=&unpackagemsg($message{$msgid});
       &statuschange($msgid,'replied');
-      if (($ENV{'form.critmsg'}) && 
+      if ((($ENV{'form.critmsg'}) || ($ENV{'form.sendbck'})) && 
           (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
          $r->print('Sending critical: '.
                 &user_crit_msg($content{'sendername'},
                                  $content{'senderdomain'},
                                  $ENV{'form.subject'},
-                                 $ENV{'form.message'}));
+                                 $ENV{'form.message'},
+                                 $ENV{'form.sendbck'}));
       } else {
          $r->print('Sending: '.&user_normal_msg($content{'sendername'},
                                  $content{'senderdomain'},
@@ -411,7 +578,7 @@ sub handler {
 	  &disall($r);
       }
   } elsif ($ENV{'form.confirm'}) {
-      map {
+      foreach (keys %ENV) {
           if ($_=~/^form\.rec\_(.*)$/) {
 	      $r->print('<b>Confirming Receipt:</b> '.
                         &user_crit_received($1).'<br>');
@@ -422,7 +589,7 @@ sub handler {
                         &user_crit_received($msgid).'<br>');
               &comprep($r,$msgid);
           }
-      } keys %ENV;
+      }
       &discrit($r);
   } elsif ($ENV{'form.critical'}) {
       &discrit($r);
@@ -432,11 +599,21 @@ sub handler {
   } elsif ($ENV{'form.markdel'}) {
       &statuschange($ENV{'form.markdel'},'deleted');
       &disall($r);
+  } elsif ($ENV{'form.markeddel'}) {
+      my $total=0;
+      foreach (keys %ENV) {
+          if ($_=~/^form\.delmark_(.*)$/) {
+	      &statuschange(&Apache::lonnet::unescape($1),'deleted');
+              $total++;
+          }
+      }
+      $r->print('Deleted '.$total.' message(s)<p>');
+      &disall($r);
   } elsif ($ENV{'form.markunread'}) {
       &statuschange($ENV{'form.markunread'},'new');
       &disall($r);
   } elsif ($ENV{'form.compose'}) {
-      &compout($r);
+      &compout($r,'',$ENV{'form.compose'});
   } elsif ($ENV{'form.sendmail'}) {
       my %content=();
       undef %content;
@@ -448,21 +625,50 @@ sub handler {
         $ENV{'form.message'}.="\n\n-- Forwarded message --\n\n".
 	                       $content{'message'};
       }
-      if (($ENV{'form.critmsg'}) && 
+      my %toaddr=();
+      undef %toaddr;
+      if ($ENV{'form.sendmode'} eq 'group') {
+          foreach (keys %ENV) {
+	      if ($_=~/^form\.send\_to\_\&\&\&[^\&]*\&\&\&\_(.+)$/) {
+		  $toaddr{$1}='';
+              }
+          }
+      } elsif ($ENV{'form.sendmode'} eq 'upload') {
+          foreach (split(/[\n\r\f]+/,$ENV{'form.upfile'})) {
+              my ($rec,$txt)=split(/\s*\:\s*/,$_);
+              if ($txt) {
+		  $rec=~s/\@/\:/;
+                  $toaddr{$rec}.=$txt."\n";
+              }
+          }
+      } else {
+	  $toaddr{$ENV{'form.recuname'}.':'.$ENV{'form.recdomain'}}='';
+      }
+      if ($ENV{'form.additionalrec'}) {
+	  foreach (split(/\,/,$ENV{'form.additionalrec'})) {
+              my ($auname,$audom)=split(/\@/,$_);
+              $toaddr{$auname.':'.$audom}='';
+          }
+      }
+    foreach (keys %toaddr) {
+      my ($recuname,$recdomain)=split(/\:/,$_);
+      my $msgtxt=$ENV{'form.message'};
+      if ($toaddr{$_}) { $msgtxt.='<hr>'.$toaddr{$_}; }    
+      if ((($ENV{'form.critmsg'}) || ($ENV{'form.sendbck'})) && 
           (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
          $r->print('Sending critical: '.
-                &user_crit_msg($ENV{'form.recuname'},
-                                 $ENV{'form.recdomain'},
+                &user_crit_msg($recuname,$recdomain,
                                  $ENV{'form.subject'},
-                                 $ENV{'form.message'},
-                                 $content{'citation'}));
+                                 $msgtxt,
+                                 $ENV{'form.sendbck'}));
       } else {
-         $r->print('Sending: '.&user_normal_msg($ENV{'form.recuname'},
-                                 $ENV{'form.recdomain'},
+         $r->print('Sending: '.&user_normal_msg($recuname,$recdomain,
                                  $ENV{'form.subject'},
-                                 $ENV{'form.message'},
+                                 $msgtxt,
                                  $content{'citation'}));
       }
+      $r->print('<br>');
+    }
       if ($ENV{'form.displayedcrit'}) {
           &discrit($r);
       } else {
@@ -477,7 +683,7 @@ sub handler {
 }
 # ================================================= Main program, reset counter
 
-sub BEGIN {
+BEGIN {
     $msgcount=0;
 }