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Diff for /loncom/interface/lonfeedback.pm between versions 1.2 and 1.30

version 1.2, 2001/02/05 17:38:17 version 1.30, 2002/09/10 21:06:22
Line 1 Line 1
 # The LearningOnline Network  # The LearningOnline Network
 # Feedback  # Feedback
 #  #
   # $Id$
   #
   # 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/
   #
 # (Internal Server Error Handler  # (Internal Server Error Handler
 #  #
 # (Login Screen  # (Login Screen
Line 9 Line 33
 #  #
 # 3/1/1 Gerd Kortemeyer)  # 3/1/1 Gerd Kortemeyer)
 #  #
 # 3/1,2/3,2/5 Gerd Kortemeyer  # 3/1,2/3,2/5,2/6,2/8 Gerd Kortemeyer
   # 2/9 Guy Albertelli
   # 2/10 Gerd Kortemeyer
   # 2/13 Guy Albertelli
   # 7/25 Gerd Kortemeyer
   # 7/26 Guy Albertelli
   # 7/26,8/10,10/1,11/5,11/6,12/27,12/29 Gerd Kortemeyer
   # YEAR=2002
   # 1/1,1/16 Gerd Kortemeyer
 #  #
   
 package Apache::lonfeedback;  package Apache::lonfeedback;
   
 use strict;  use strict;
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
   use Apache::lonmsg();
   use Apache::loncommon();
   
 sub handler {  sub mail_screen {
     my $r = shift;    my ($r,$feedurl,$options) = @_;
     $r->content_type('text/html');    my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
     $r->send_http_header;                                            '','onLoad="window.focus();"');
     return OK if $r->header_only;    $r->print(<<ENDDOCUMENT);
   
     my $feedurl=$ENV{'form.postdata'};  
     $feedurl=~s/^http\:\/\///;  
     $feedurl=~s/^$ENV{'SERVER_NAME'}//;  
     $feedurl=~s/^$ENV{'HTTP_HOST'}//;  
   
     if (($feedurl=~/^\/res/) || ($ENV{'request.course.id'})) {  
 # --------------------------------------------------- Print login screen header  
     unless ($ENV{'form.sendit'}) {  
  my $options='';  
         if ($feedurl=~/^\/res/) {  
            $options=   
  '<p><input type=checkbox name=author> Feedback to resource author';  
         }  
  if ($ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) {  
            $options.=  
  '<br><input type=checkbox name=question> Question about resource content';  
         }  
  if ($ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) {  
            $options.=  
  '<br><input type=checkbox name=question> '.  
  'Question/Comment/Feedback about course content';  
         }  
  if ($ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) {  
            $options.=  
  '<br><input type=checkbox name=question> '.  
  'Question/Comment/Feedback about course policy';  
         }  
        $r->print(<<ENDDOCUMENT);  
 <html>  <html>
 <head>  <head>
 <title>The LearningOnline Network with CAPA</title>  <title>The LearningOnline Network with CAPA</title>
   <meta http-equiv="pragma" content="no-cache"></meta>
   <script>
       function gosubmit() {
           var rec=0;
           if (typeof(document.mailform.elements.author)!="undefined") {
             if (document.mailform.elements.author.checked) {
                rec=1;
             } 
           }
           if (typeof(document.mailform.elements.question)!="undefined") {
             if (document.mailform.elements.question.checked) {
                rec=1;
             } 
           }
           if (typeof(document.mailform.elements.course)!="undefined") {
             if (document.mailform.elements.course.checked) {
                rec=1;
             } 
           }
           if (typeof(document.mailform.elements.policy)!="undefined") {
             if (document.mailform.elements.policy.checked) {
                rec=1;
             } 
           }
           if (typeof(document.mailform.elements.discuss)!="undefined") {
             if (document.mailform.elements.discuss.checked) {
                rec=1;
             } 
           }
           if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
             if (document.mailform.elements.anondiscuss.checked) {
                rec=1;
             } 
           }
   
           if (rec) {
       document.mailform.submit();
           } else {
               alert('Please check a feedback type.');
    }
       }
   </script>
 </head>  </head>
 <body bgcolor="#FFFFFF">  $bodytag
 <img align=right src=/adm/lonIcons/lonlogos.gif>  
 <h1>Feedback</h1>  
 <h2><tt>$feedurl</tt></h2>  <h2><tt>$feedurl</tt></h2>
 <form action="/adm/feedback" method=post>  <form action="/adm/feedback" method=post name=mailform>
 <input type=hidden name=postdata value="$feedurl">  <input type=hidden name=postdata value="$feedurl">
 Please check at least one of the following:  Please check at least one of the following feedback types:
 $options<hr>  $options<hr>
 My question/comment/feedback:<p>  My question/comment/feedback:<p>
 <textarea name=comment cols=60 rows=10>  <textarea name=comment cols=60 rows=10 wrap=hard>
 </textarea><p>  </textarea><p>
 <input type=submit name=sendit value="Send Feedback"></input>  <input type=hidden name=sendit value=1>
   <input type=button value="Send Feedback" onClick='gosubmit();'></input>
 </form>  </form>
 </body>  </body>
 </html>  </html>
 ENDDOCUMENT  ENDDOCUMENT
 } else {  }
     my $symb=&Apache::lonnet::symbread($feedurl);  
     my $prevattempts='';  sub fail_redirect {
     if ($symb) {    my ($r,$feedurl) = @_;
        my $answer=&Apache::lonnet::reply(    $r->print (<<ENDFAILREDIR);
               "restore:".$ENV{'user.domain'}.':'.$ENV{'user.name'}.':'.  <head><title>Feedback not sent</title>
               $ENV{'request.course.id'}.':'.  <meta http-equiv="pragma" content="no-cache"></meta>
               &Apache::lonnet::escape($symb),  <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl">
               $ENV{'user.home'});  
        my %returnhash=();  
        map {  
   my ($name,$value)=split(/\=/,$_);  
           $returnhash{&Apache::lonnet::unescape($name)}=  
                       &Apache::lonnet::unescape($value);  
        } split(/\&/,$answer);  
        my %lasthash=();  
        my $version;  
        for ($version=1;$version<=$returnhash{'version'};$version++) {  
           map {  
              $lasthash{$_}=$returnhash{$version.':'.$_};  
           } split(/\:/,$returnhash{$version.':keys'});  
        }  
        $prevattempts='<table border=2></tr><th>History</th>';  
        map {  
            $prevattempts.='<th>'.$_.'</th>';  
        } keys %lasthash;  
        for ($version=1;$version<=$returnhash{'version'};$version++) {  
    $prevattempts.='</tr><tr><th>Attempt '.$version.'</th>';  
            map {  
                $prevattempts.='<td>'.$returnhash{$version.':'.$_}.'</td>';     
   } keys %lasthash;  
        }  
        $prevattempts.='</tr><tr><th>Current</th>';  
        map {  
            $prevattempts.='<td>'.$lasthash{$_}.'</td>';  
        } keys %lasthash;  
        $prevattempts.='</tr></table>';  
     }  
     my $usersaw=&Apache::lonnet::ssi($feedurl);  
     $usersaw=~s/\<body[^\>]*\>//gi;  
     $usersaw=~s/\<\/body\>//gi;  
     $usersaw=~s/\<html\>//gi;  
     $usersaw=~s/\<\/html\>//gi;  
     $usersaw=~s/\<head\>//gi;  
     $usersaw=~s/\<\/head\>//gi;  
     $usersaw=~s/action\s*\=/would_be_action\=/gi;  
 # <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$feedurl">  
       
     print (<<ENDREDIR);  
 <head><title>Feedback sent</title>  
 </head>  </head>
 <html>  <html>
 <body bgcolor="#FFFFFF">  <body bgcolor="#FFFFFF">
 <b>Feedback sent ...</b>  <img align=right src=/adm/lonIcons/lonlogos.gif>
 $prevattempts  <b>Sorry, no recipients  ...</b>
 <hr>  </body>
 $usersaw  </html>
   ENDFAILREDIR
   }
   
   sub redirect_back {
     my ($r,$feedurl,$typestyle,$sendsomething,$status) = @_;
     $r->print (<<ENDREDIR);
   <head>
   <title>Feedback sent</title>
   <meta http-equiv="pragma" content="no-cache"></meta>
   <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl">
   </head>
   <html>
   <body bgcolor="#FFFFFF">
   <img align=right src=/adm/lonIcons/lonlogos.gif>
   $typestyle
   <b>Sent $sendsomething message(s).</b>
   <font color=red>$status</font>
 </body>  </body>
 </html>  </html>
 ENDREDIR  ENDREDIR
 }  }
 } else {  
     print (<<ENDNOREDIR);  sub no_redirect_back {
     my ($r,$feedurl) = @_;
     $r->print (<<ENDNOREDIR);
 <head><title>Feedback not sent</title>  <head><title>Feedback not sent</title>
 <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$feedurl">  <meta http-equiv="pragma" content="no-cache"></meta>
   ENDNOREDIR
   
     if ($feedurl!~/^\/adm\/feedback/) { 
       $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
     }
     
     $r->print (<<ENDNOREDIRTWO);
 </head>  </head>
 <html>  <html>
 <body bgcolor="#FFFFFF">  <body bgcolor="#FFFFFF">
 Sorry, no feedback possible on this resource  ...  <img align=right src=/adm/lonIcons/lonlogos.gif>
   <b>Sorry, no feedback possible on this resource  ...</b>
 </body>  </body>
 </html>  </html>
 ENDNOREDIR  ENDNOREDIRTWO
 }  }
     return OK;  
 }   
   
 1;  sub screen_header {
 __END__    my ($feedurl) = @_;
     my $options='';
     if (($feedurl=~/^\/res/) && ($feedurl!~/^\/res\/adm/)) {
       $options= 
         '<p><input type=checkbox name=author> Feedback to resource author';
     }
     if ($ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) {
       $options.=
       '<br><input type=checkbox name=question> Question about resource content';
     }
     if ($ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) {
       $options.=
         '<br><input type=checkbox name=course> '.
    'Question/Comment/Feedback about course content';
     }
     if ($ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) {
       $options.=
         '<br><input type=checkbox name=policy> '.
    'Question/Comment/Feedback about course policy';
     }
   
     if ($ENV{'request.course.id'}) {
         if (&Apache::lonnet::allowed('pch',
           $ENV{'request.course.id'}.
           ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
       $options.='<br><input type=checkbox name=discuss> '.
    '<b>Contribution to course discussion of resource</b>';
       $options.='<br><input type=checkbox name=anondiscuss> '.
    '<b>Anonymous contribution to course discussion of resource</b>'.
           ' (name only visible to course faculty)';
         }
     }
     return $options;
   }
   
   sub resource_output {
     my ($feedurl) = @_;
     my $usersaw=&Apache::lonnet::ssi($feedurl);
     $usersaw=~s/\<body[^\>]*\>//gi;
     $usersaw=~s/\<\/body\>//gi;
     $usersaw=~s/\<html\>//gi;
     $usersaw=~s/\<\/html\>//gi;
     $usersaw=~s/\<head\>//gi;
     $usersaw=~s/\<\/head\>//gi;
     $usersaw=~s/action\s*\=/would_be_action\=/gi;
     return $usersaw;
   }
   
   sub clear_out_html {
     my $message=$ENV{'form.comment'};
     $message=~s/\</\&lt\;/g;
     $message=~s/\>/\&gt\;/g;
     return $message;
   }
   
   sub assemble_email {
     my ($feedurl,$message,$prevattempts,$usersaw)=@_;
     my $email=<<"ENDEMAIL";
   Refers to <a href="$feedurl">$feedurl</a>
   
   $message
   ENDEMAIL
       my $citations=<<"ENDCITE";
   <h2>Previous attempts of student (if applicable)</h2>
   $prevattempts
   <p><hr>
   <h2>Original screen output (if applicable)</h2>
   $usersaw
   ENDCITE
     return ($email,$citations);
   }
   
   sub decide_receiver {
     my ($feedurl) = @_;
     my $typestyle='';
     my %to=();
     if ($ENV{'form.author'}) {
       $typestyle.='Submitting as Author Feedback<br>';
       $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
       $to{$2.':'.$1}=1;
     }
     if ($ENV{'form.question'}) {
       $typestyle.='Submitting as Question<br>';
       foreach (split(/\,/,
      $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
        ) {
         $to{$_}=1;
       } 
     }
     if ($ENV{'form.course'}) {
       $typestyle.='Submitting as Comment<br>';
       foreach (split(/\,/,
      $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
        ) {
         $to{$_}=1;
       } 
     }
     if ($ENV{'form.policy'}) {
       $typestyle.='Submitting as Policy Feedback<br>';
       foreach (split(/\,/,
      $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
        ) {
         $to{$_}=1;
       } 
     }
     return ($typestyle,%to);
   }
   
   sub send_msg {
     my ($feedurl,$email,$citations,%to)=@_;
     my $status='';
     my $sendsomething=0;
     foreach (keys %to) {
       if ($_) {
         my $declutter=&Apache::lonnet::declutter($feedurl);
         unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
                  'Feedback ['.$declutter.']',$email,$citations) eq 'ok') {
    $status.='<br>Error sending message to '.$_.'<br>';
         } else {
    $sendsomething++;
         }
       }
     }
   
       my %record=&Apache::lonnet::restore('_feedback');
       my ($temp)=keys %record;
       unless ($temp=~/^error\:/) {
          my %newrecord=();
          $newrecord{'resource'}=$feedurl;
          $newrecord{'subnumber'}=$record{'subnumber'}+1;
          unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
      $status.='<br>Not registered<br>';
          }
       }
          
     return ($status,$sendsomething);
   }
   
   sub adddiscuss {
       my ($symb,$email,$anon)=@_;
       my $status='';
       if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
           ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
   
       my %contrib=('message'      => $email,
                    'sendername'   => $ENV{'user.name'},
                    'senderdomain' => $ENV{'user.domain'},
                    'screenname'   => $ENV{'environment.screenname'},
                    'plainname'    => $ENV{'environment.firstname'}.' '.
                      $ENV{'environment.middlename'}.' '.
                                      $ENV{'environment.lastname'}.' '.
                                      $ENV{'enrironment.generation'});
       if ($anon) {
    $contrib{'anonymous'}='true';
       }
       if (($symb) && ($email)) {
          $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
           &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
                        $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
        $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
           my %storenewentry=($symb => time);
           $status.='<br>Updating discussion time: '.
           &Apache::lonnet::put('discussiontimes',\%storenewentry,
                        $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
        $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
       }
       my %record=&Apache::lonnet::restore('_discussion');
       my ($temp)=keys %record;
       unless ($temp=~/^error\:/) {
          my %newrecord=();
          $newrecord{'resource'}=$symb;
          $newrecord{'subnumber'}=$record{'subnumber'}+1;
          $status.='<br>Registering: '.
                  &Apache::lonnet::cstore(\%newrecord,'_discussion');
       }
       } else {
    $status.='Failed.';
       }
       return $status.'<br>';   
   }
   
   sub handler {
     my $r = shift;
     if ($r->header_only) {
        $r->content_type('text/html');
        $r->send_http_header;
        return OK;
     }
   
   # --------------------------- Get query string for limited number of parameters
   
      &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
                                              ['hide','unhide','postdata']);
   
     if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
   # ----------------------------------------------------------------- Hide/unhide
       $r->content_type('text/html');
       $r->send_http_header;
   
       my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
   
       my ($symb,$idx)=split(/\:\:\:/,$entry);
       my ($map,$ind,$url)=split(/\_\_\_/,$symb);
   
       my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
                        $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
        $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
   
           
       my $currenthidden=$contrib{'hidden'};
       
       if ($ENV{'form.hide'}) {
    $currenthidden.='.'.$idx.'.';
       } else {
           $currenthidden=~s/\.$idx\.//g;
       }
       my %newhash=('hidden' => $currenthidden);
   
       &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
                        $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
        $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
   
       &redirect_back($r,&Apache::lonnet::clutter($url),
          'Changed discussion status<p>','0');
     } else {
   # ------------------------------------------------------------- Normal feedback
     my $feedurl=$ENV{'form.postdata'};
     $feedurl=~s/^http\:\/\///;
     $feedurl=~s/^$ENV{'SERVER_NAME'}//;
     $feedurl=~s/^$ENV{'HTTP_HOST'}//;
   
     my $symb=&Apache::lonnet::symbread($feedurl);
     my $goahead=1;
     if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
         unless ($symb) { $goahead=0; }
     }
   
     if ($goahead) {
   # Go ahead with feedback, no ambiguous reference
       $r->content_type('text/html');
       $r->send_http_header;
     
       if (
         (
          ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
         ) 
         || 
         ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
        ) {
   # --------------------------------------------------- Print login screen header
       unless ($ENV{'form.sendit'}) {
         my $options=&screen_header($feedurl);
         if ($options) {
    &mail_screen($r,$feedurl,$options);
         } else {
    &fail_redirect($r,$feedurl);
         }
       } else {
         
   # Get previous user input
         my $prevattempts=&Apache::loncommon::get_previous_attempt(
               $symb,$ENV{'user.name'},$ENV{'user.domain'},
               $ENV{'request.course.id'});
   
   # Get output from resource
         my $usersaw=&resource_output($feedurl);
   
   # Filter HTML out of message (could be nasty)
         my $message=&clear_out_html;
   
   # Assemble email
         my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
             $usersaw);
   
   # Who gets this?
         my ($typestyle,%to) = &decide_receiver($feedurl);
   
   # Actually send mail
         my ($status,$numsent)=&send_msg($feedurl,$email,$citations,%to);
   
   # Discussion? Store that.
   
         if ($ENV{'form.discuss'}) {
     $typestyle.=&adddiscuss($symb,$message);
         }
   
         if ($ENV{'form.anondiscuss'}) {
     $typestyle.=&adddiscuss($symb,$message,1);
         }
   
   
   # Receipt screen and redirect back to where came from
         &redirect_back($r,$feedurl,$typestyle,$numsent,$status);
   
       }
      } else {
   # Unable to give feedback
       &no_redirect_back($r,$feedurl);
      }
     } else {
   # Ambiguous Problem Resource
       $r->internal_redirect('/adm/ambiguous');
     }
   }
     return OK;
   } 
   
   1;
   __END__
Removed from v.1.2  
changed lines
  Added in v.1.30

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