File:  [LON-CAPA] / loncom / interface / lonfeedback.pm
Revision 1.3: download - view: text, annotated - select for diffs
Tue Feb 6 14:22:30 2001 UTC (23 years, 3 months ago) by www
Branches: MAIN
CVS tags: HEAD
Sends messages now.

    1: # The LearningOnline Network
    2: # Feedback
    3: #
    4: # (Internal Server Error Handler
    5: #
    6: # (Login Screen
    7: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
    8: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
    9: #
   10: # 3/1/1 Gerd Kortemeyer)
   11: #
   12: # 3/1,2/3,2/5,2/6 Gerd Kortemeyer
   13: #
   14: package Apache::lonfeedback;
   15: 
   16: use strict;
   17: use Apache::Constants qw(:common);
   18: use Apache::lonmsg();
   19: 
   20: sub handler {
   21:     my $r = shift;
   22:     $r->content_type('text/html');
   23:     $r->send_http_header;
   24:     return OK if $r->header_only;
   25: 
   26:     my $feedurl=$ENV{'form.postdata'};
   27:     $feedurl=~s/^http\:\/\///;
   28:     $feedurl=~s/^$ENV{'SERVER_NAME'}//;
   29:     $feedurl=~s/^$ENV{'HTTP_HOST'}//;
   30: 
   31:     if (($feedurl=~/^\/res/) || ($ENV{'request.course.id'})) {
   32: # --------------------------------------------------- Print login screen header
   33:     unless ($ENV{'form.sendit'}) {
   34: 	my $options='';
   35:         if ($feedurl=~/^\/res/) {
   36:            $options= 
   37:  '<p><input type=checkbox name=author> Feedback to resource author';
   38:         }
   39: 	if ($ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) {
   40:            $options.=
   41:  '<br><input type=checkbox name=question> Question about resource content';
   42:         }
   43: 	if ($ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) {
   44:            $options.=
   45:  '<br><input type=checkbox name=comment> '.
   46:  'Question/Comment/Feedback about course content';
   47:         }
   48: 	if ($ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) {
   49:            $options.=
   50:  '<br><input type=checkbox name=policy> '.
   51:  'Question/Comment/Feedback about course policy';
   52:         }
   53:        $r->print(<<ENDDOCUMENT);
   54: <html>
   55: <head>
   56: <title>The LearningOnline Network with CAPA</title>
   57: </head>
   58: <body bgcolor="#FFFFFF">
   59: <img align=right src=/adm/lonIcons/lonlogos.gif>
   60: <h1>Feedback</h1>
   61: <h2><tt>$feedurl</tt></h2>
   62: <form action="/adm/feedback" method=post>
   63: <input type=hidden name=postdata value="$feedurl">
   64: Please check at least one of the following:
   65: $options<hr>
   66: My question/comment/feedback:<p>
   67: <textarea name=comment cols=60 rows=10>
   68: </textarea><p>
   69: <input type=submit name=sendit value="Send Feedback"></input>
   70: </form>
   71: </body>
   72: </html>
   73: ENDDOCUMENT
   74: } else {
   75: #
   76: # Get previous user input
   77: #
   78:     my $symb=&Apache::lonnet::symbread($feedurl);
   79:     my $prevattempts='';
   80:     if ($symb) {
   81:        my $answer=&Apache::lonnet::reply(
   82:               "restore:".$ENV{'user.domain'}.':'.$ENV{'user.name'}.':'.
   83:               $ENV{'request.course.id'}.':'.
   84:               &Apache::lonnet::escape($symb),
   85:               $ENV{'user.home'});
   86:        my %returnhash=();
   87:        map {
   88: 	  my ($name,$value)=split(/\=/,$_);
   89:           $returnhash{&Apache::lonnet::unescape($name)}=
   90:                       &Apache::lonnet::unescape($value);
   91:        } split(/\&/,$answer);
   92:        my %lasthash=();
   93:        my $version;
   94:        for ($version=1;$version<=$returnhash{'version'};$version++) {
   95:           map {
   96:              $lasthash{$_}=$returnhash{$version.':'.$_};
   97:           } split(/\:/,$returnhash{$version.':keys'});
   98:        }
   99:        $prevattempts='<table border=2></tr><th>History</th>';
  100:        map {
  101:            $prevattempts.='<th>'.$_.'</th>';
  102:        } keys %lasthash;
  103:        for ($version=1;$version<=$returnhash{'version'};$version++) {
  104: 	   $prevattempts.='</tr><tr><th>Attempt '.$version.'</th>';
  105:            map {
  106:                $prevattempts.='<td>'.$returnhash{$version.':'.$_}.'</td>';   
  107: 	  } keys %lasthash;
  108:        }
  109:        $prevattempts.='</tr><tr><th>Current</th>';
  110:        map {
  111:            $prevattempts.='<td>'.$lasthash{$_}.'</td>';
  112:        } keys %lasthash;
  113:        $prevattempts.='</tr></table>';
  114:     }
  115: #
  116: # Get output from resource
  117: #
  118:     my $usersaw=&Apache::lonnet::ssi($feedurl);
  119:     $usersaw=~s/\<body[^\>]*\>//gi;
  120:     $usersaw=~s/\<\/body\>//gi;
  121:     $usersaw=~s/\<html\>//gi;
  122:     $usersaw=~s/\<\/html\>//gi;
  123:     $usersaw=~s/\<head\>//gi;
  124:     $usersaw=~s/\<\/head\>//gi;
  125:     $usersaw=~s/action\s*\=/would_be_action\=/gi;
  126: #
  127: # Filter HTML out of message (could be nasty)
  128: #
  129:     my $message=$ENV{'form.comment'};
  130:     $message=~s/\</\&lt\;/g;
  131:     $message=~s/\>/\&gt\;/g;
  132: 
  133: #
  134: # Assemble email
  135: #
  136:     my $email=<<"ENDEMAIL";
  137: Refers to <a href="$feedurl">$feedurl</a>
  138: <hr>
  139: <h2>Message</h2>
  140: <pre>
  141: $message
  142: </pre>
  143: <hr>
  144: <h2>Previous attempts of student (if applicable)</h2>
  145: $prevattempts
  146: <p><hr>
  147: <h2>Original screen output (if applicable)</h2>
  148: $usersaw
  149: ENDEMAIL
  150: #
  151: # Who gets this?
  152: #
  153:     my %to=();
  154:     if ($ENV{'form.author'}) {
  155: 	$feedurl=~/^\/res\/(\w+)\/(\w+)\//;
  156:         $to{$2.':'.$1}=1;
  157:     }
  158:     if ($ENV{'form.question'}) {
  159: 	map {
  160:             $to{$_}=1;
  161:         } split(/\,/,
  162:           $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'});
  163:     }
  164:     if ($ENV{'form.comment'}) {
  165: 	map {
  166:             $to{$_}=1;
  167:         } split(/\,/,
  168:           $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'});
  169:     }
  170:     if ($ENV{'form.policy'}) {
  171: 	map {
  172:             $to{$_}=1;
  173:         } split(/\,/,
  174:           $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'});
  175:     }
  176: #
  177: # Actually send mail
  178: #
  179:     my $status='';
  180:     map {
  181:        if ($_) {
  182:           unless (
  183:           &Apache::lonmsg::user_normal_msg(split(/\:/,$_),'Feedback '.$feedurl,
  184:                                            $email) eq 'ok') {
  185:             $status.='<br>Error sending message to '.$_.'<br>';
  186: 	  }
  187:        }
  188:     } keys %to;
  189: #
  190: # Receipt screen and redirect back to where came from
  191: #
  192:     print (<<ENDREDIR);
  193: <head>
  194: <title>Feedback sent</title>
  195: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$feedurl">
  196: </head>
  197: <html>
  198: <body bgcolor="#FFFFFF">
  199: <b>Feedback sent ...</b>
  200: <font color=red>$status</font>
  201: </body>
  202: </html>
  203: ENDREDIR
  204: }
  205: } else {
  206:     print (<<ENDNOREDIR);
  207: <head><title>Feedback not sent</title>
  208: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$feedurl">
  209: </head>
  210: <html>
  211: <body bgcolor="#FFFFFF">
  212: Sorry, no feedback possible on this resource  ...
  213: </body>
  214: </html>
  215: ENDNOREDIR
  216: }
  217:     return OK;
  218: } 
  219: 
  220: 1;
  221: __END__
  222: 
  223: 
  224: 

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