loncom/interface/lonfeedback.pm - view

File: [LON-CAPA] / loncom / interface / lonfeedback.pm
Revision 1.74: download - view: text, annotated - select for diffs
Tue Jan 13 02:31:09 2004 UTC (20 years, 4 months ago) by www
Branches: MAIN
CVS tags: HEAD

Working through some of the FDBK/COM comments, bug #2187

1: # The LearningOnline Network 2: # Feedback 3: # 4: # $Id: lonfeedback.pm,v 1.74 2004/01/13 02:31:09 www Exp $ 5: # 6: # Copyright Michigan State University Board of Trustees 7: # 8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA). 9: # 10: # LON-CAPA is free software; you can redistribute it and/or modify 11: # it under the terms of the GNU General Public License as published by 12: # the Free Software Foundation; either version 2 of the License, or 13: # (at your option) any later version. 14: # 15: # LON-CAPA is distributed in the hope that it will be useful, 16: # but WITHOUT ANY WARRANTY; without even the implied warranty of 17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18: # GNU General Public License for more details. 19: # 20: # You should have received a copy of the GNU General Public License 21: # along with LON-CAPA; if not, write to the Free Software 22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23: # 24: # /home/httpd/html/adm/gpl.txt 25: # 26: # http://www.lon-capa.org/ 27: # 28: # (Internal Server Error Handler 29: # 30: # (Login Screen 31: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14, 32: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer) 33: # 34: # 3/1/1 Gerd Kortemeyer) 35: # 36: # 3/1,2/3,2/5,2/6,2/8 Gerd Kortemeyer 37: # 2/9 Guy Albertelli 38: # 2/10 Gerd Kortemeyer 39: # 2/13 Guy Albertelli 40: # 7/25 Gerd Kortemeyer 41: # 7/26 Guy Albertelli 42: # 7/26,8/10,10/1,11/5,11/6,12/27,12/29 Gerd Kortemeyer 43: # YEAR=2002 44: # 1/1,1/16 Gerd Kortemeyer 45: # 46: 47: package Apache::lonfeedback; 48: 49: use strict; 50: use Apache::Constants qw(:common); 51: use Apache::lonmsg(); 52: use Apache::loncommon(); 53: use Apache::lontexconvert(); 54: use Apache::lonlocal; 55: 56: sub list_discussion { 57: my ($mode,$status,$symb)=@_; 58: my $discussiononly=0; 59: if ($mode eq 'board') { $discussiononly=1; } 60: unless ($ENV{'request.course.id'}) { return ''; } 61: my $crs='/'.$ENV{'request.course.id'}; 62: if ($ENV{'request.course.sec'}) { 63: $crs.='_'.$ENV{'request.course.sec'}; 64: } 65: $crs=~s/\_/\//g; 66: unless ($symb) { 67: $symb=&Apache::lonnet::symbread(); 68: } 69: unless ($symb) { return ''; } 70: my $seeid=&Apache::lonnet::allowed('rin',$crs); 71: my $viewgrades=&Apache::lonnet::allowed('vgr',$crs); 72: my @discussionitems=(); 73: # backward compatibility (bulletin boards used to be 'wrapped') 74: my $ressymb=$symb; 75: if ($mode eq 'board') { 76: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|; 77: } 78: my %contrib=&Apache::lonnet::restore($ressymb,$ENV{'request.course.id'}, 79: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 80: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 81: my $visible=0; 82: my @depth=(); 83: my @original=(); 84: my @index=(); 85: my @replies=(); 86: my %alldiscussion=(); 87: my $maxdepth=0; 88: 89: my $target=''; 90: unless ($ENV{'browser.interface'} eq 'textual' || 91: $ENV{'environment.remote'} eq 'off' ) { 92: $target='target="LONcom"'; 93: } 94: if ($contrib{'version'}) { 95: for (my $id=1;$id<=$contrib{'version'};$id++) { 96: my $idx=$id; 97: my $hidden=($contrib{'hidden'}=~/\.$idx\./); 98: my $deleted=($contrib{'deleted'}=~/\.$idx\./); 99: my $origindex='0.'; 100: if (($contrib{$idx.':replyto'}) && ($ENV{'environment.threadeddiscussion'})) { 101: # this is a follow-up message 102: $original[$idx]=$original[$contrib{$idx.':replyto'}]; 103: $depth[$idx]=$depth[$contrib{$idx.':replyto'}]+1; 104: $origindex=$index[$contrib{$idx.':replyto'}]; 105: if ($depth[$idx]>$maxdepth) { $maxdepth=$depth[$idx]; } 106: } else { 107: # this is an original message 108: $original[$idx]=0; 109: $depth[$idx]=0; 110: } 111: if ($replies[$depth[$idx]]) { 112: $replies[$depth[$idx]]++; 113: } else { 114: $replies[$depth[$idx]]=1; 115: } 116: unless ((($hidden) && (!$seeid)) || ($deleted)) { 117: $visible++; 118: my $message=$contrib{$idx.':message'}; 119: $message=~s/\n/\<br \/\>/g; 120: $message=&Apache::lontexconvert::msgtexconverted($message); 121: if ($contrib{$idx.':attachmenturl'}) { 122: my ($fname,$ft) 123: =($contrib{$idx.':attachmenturl'}=~/\/(\w+)\.(\w+)$/); 124: $message.='<p>'.&mt('Attachment').': <a href="'. 125: &Apache::lonnet::tokenwrapper( 126: $contrib{$idx.':attachmenturl'}). 127: '"><tt>'.$fname.'.'.$ft.'</tt></a></p>'; 128: } 129: if ($message) { 130: if ($hidden) { 131: $message='<font color="#888888">'.$message.'</font>'; 132: } 133: my $screenname=&Apache::loncommon::screenname( 134: $contrib{$idx.':sendername'}, 135: $contrib{$idx.':senderdomain'}); 136: my $plainname=&Apache::loncommon::nickname( 137: $contrib{$idx.':sendername'}, 138: $contrib{$idx.':senderdomain'}); 139: 140: my $sender=&mt('Anonymous'); 141: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) { 142: $sender=&Apache::loncommon::aboutmewrapper( 143: $plainname, 144: $contrib{$idx.':sendername'}, 145: $contrib{$idx.':senderdomain'}).' ('. 146: $contrib{$idx.':sendername'}.' at '. 147: $contrib{$idx.':senderdomain'}.')'; 148: if ($contrib{$idx.':anonymous'}) { 149: $sender.=' ['.&mt('anonymous').'] '. 150: $screenname; 151: } 152: if ($seeid) { 153: if ($hidden) { 154: $sender.=' <a href="/adm/feedback?unhide='. 155: $symb.':::'.$idx.'">'.&mt('Make Visible').'</a>'; 156: } else { 157: $sender.=' <a href="/adm/feedback?hide='. 158: $symb.':::'.$idx.'">'.&mt('Hide').'</a>'; 159: } 160: $sender.=' <a href="/adm/feedback?deldisc='. 161: $symb.':::'.$idx.'">'.&mt('Delete').'</a>'; 162: } 163: if (&Apache::lonnet::allowed('pch', 164: $ENV{'request.course.id'}. 165: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 166: $sender.=' <a href="/adm/feedback?replydisc='. 167: $symb.':::'.$idx.'" '.$target.'>'.&mt('Reply').'</a>'; 168: } 169: } else { 170: if ($screenname) { 171: $sender='<i>'.$screenname.'</i>'; 172: } 173: } 174: my $vgrlink; 175: if ($viewgrades) { 176: $vgrlink=&Apache::loncommon::submlink('Submissions', 177: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb); 178: } 179: #figure out at what position this needs to print 180: my $thisindex=$idx; 181: if ($ENV{'environment.threadeddiscussion'}) { 182: $thisindex=$origindex.substr('00'.$replies[$depth[$idx]],-2,2); 183: } 184: $alldiscussion{$thisindex}=$idx; 185: $index[$idx]=$thisindex; 186: $discussionitems[$idx]='<p><b>'.$sender.'</b> '.$vgrlink.' ('. 187: localtime($contrib{$idx.':timestamp'}). 188: '):<blockquote>'.$message. 189: '</blockquote></p>'; 190: } 191: } 192: } 193: } 194: my $discussion=''; 195: if ($visible) { 196: # Print a the discusssion 197: $discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">'; 198: if ($visible>2) { 199: my $colspan=$maxdepth+1; 200: $discussion.='<tr><td bgcolor="DDDDBB" colspan="'.$colspan.'">'. 201: '<a href="/adm/feedback?threadedon='.$symb.'">'.&mt('Threaded View').'</a>  '. 202: '<a href="/adm/feedback?threadedoff='.$symb.'">'.&mt('Chronological View').'</a>'. 203: '</td></tr>'; 204: } 205: 206: foreach (sort { $a <=> $b } keys %alldiscussion) { 207: $discussion.="\n<tr>"; 208: my $thisdepth=$depth[$alldiscussion{$_}]; 209: for (1..$thisdepth) { 210: $discussion.='<td>   </td>'; 211: } 212: my $colspan=$maxdepth-$thisdepth+1; 213: $discussion.="<td bgcolor='#CCCCCC' colspan='".$colspan."'>".$discussionitems[$alldiscussion{$_}]. 214: "</td></tr>"; 215: } 216: $discussion.='</table>'; 217: } 218: if ($discussiononly) { 219: $discussion.=(<<ENDDISCUSS); 220: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> 221: <input type="submit" name="discuss" value="Post Discussion" /> 222: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" /> 223: <input type="hidden" name="symb" value="$ressymb" /> 224: <input type="hidden" name="sendit" value="true" /> 225: <br /> 226: <font size="1">Note: in anonymous discussion, your name is visible only to 227: course faculty</font><br /> 228: <textarea name="comment" cols="60" rows="10" wrap="hard"></textarea> 229: <p> 230: Attachment (128 KB max size): <input type="file" name="attachment" /> 231: </p> 232: </form> 233: ENDDISCUSS 234: $discussion.=&generate_preview_button(); 235: } else { 236: if (&Apache::lonnet::allowed('pch', 237: $ENV{'request.course.id'}. 238: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 239: $discussion.='<table bgcolor="#BBBBBB"><tr><td><a href="/adm/feedback?replydisc='. 240: $symb.':::" '.$target.'>'. 241: '<img src="/adm/lonMisc/chat.gif" border="0" />'. 242: &mt('Post Discussion').'</a></td></tr></table>'; 243: } 244: } 245: return $discussion; 246: } 247: 248: sub mail_screen { 249: my ($r,$feedurl,$options) = @_; 250: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion', 251: '','onLoad="window.focus();"'); 252: my $title=&Apache::lonnet::gettitle($feedurl); 253: if (!$title) { $title = $feedurl; } 254: my $quote=''; 255: if ($ENV{'form.replydisc'}) { 256: my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'}); 257: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 258: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 259: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 260: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) { 261: my $message=$contrib{$idx.':message'}; 262: $message=~s/\n/\<br \/\>/g; 263: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>'; 264: } 265: } 266: my $latexHelp = Apache::loncommon::helpLatexCheatsheet(); 267: my $send=&mt('Send'); 268: $r->print(<<ENDDOCUMENT); 269: <html> 270: <head> 271: <title>The LearningOnline Network with CAPA</title> 272: <meta http-equiv="pragma" content="no-cache"></meta> 273: <script type="text/javascript"> 274: // 315: </script> 316: </head> 317: $bodytag 318: <h2><tt>$title</tt></h2> 319: <form action="/adm/feedback" method="post" name="mailform" 320: enctype="multipart/form-data"> 321: <input type="hidden" name="postdata" value="$feedurl" /> 322: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" /> 323: Please check at least one of the following feedback types: 324: $options<hr /> 325: $quote 326: <p>My question/comment/feedback:</p> 327: <p> 328: $latexHelp 329: <textarea name="comment" cols="60" rows="10" wrap="hard"> 330: </textarea></p> 331: <p> 332: Attachment (128 KB max size): <input type="file" name="attachment" /> 333: </p> 334: <p> 335: <input type="hidden" name="sendit" value="1" /> 336: <input type="button" value="$send" onClick='gosubmit();' /> 337: </p> 338: </form> 339: ENDDOCUMENT 340: $r->print(&generate_preview_button().'</body></html>'); 341: } 342: 343: sub fail_redirect { 344: my ($r,$feedurl) = @_; 345: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' }; 346: $r->print (<<ENDFAILREDIR); 347: <html> 348: <head><title>Feedback not sent</title> 349: <meta http-equiv="pragma" content="no-cache" /> 350: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" /> 351: </head> 352: <body bgcolor="#FFFFFF"> 353: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 354: <b>Sorry, no recipients ...</b> 355: </body> 356: </html> 357: ENDFAILREDIR 358: } 359: 360: sub redirect_back { 361: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status) = @_; 362: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' }; 363: $r->print (<<ENDREDIR); 364: <html> 365: <head> 366: <title>Feedback sent</title> 367: <meta http-equiv="pragma" content="no-cache" /> 368: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl"> 369: </head> 370: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'> 371: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 372: $typestyle 373: <b>Sent $sendsomething message(s), and $sendposts post(s).</b> 374: <font color="red">$status</font> 375: <form name="reldt" action="$feedurl" target="loncapaclient"> 376: </form> 377: </body> 378: </html> 379: ENDREDIR 380: } 381: 382: sub no_redirect_back { 383: my ($r,$feedurl) = @_; 384: $r->print (<<ENDNOREDIR); 385: <html> 386: <head><title>Feedback not sent</title> 387: <meta http-equiv="pragma" content="no-cache" /> 388: ENDNOREDIR 389: 390: if ($feedurl!~/^\/adm\/feedback/) { 391: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">'); 392: } 393: 394: $r->print (<<ENDNOREDIRTWO); 395: </head> 396: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'> 397: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 398: <b>Sorry, no feedback possible on this resource ...</b> 399: </body> 400: </html> 401: ENDNOREDIRTWO 402: } 403: 404: sub screen_header { 405: my ($feedurl) = @_; 406: my $msgoptions=''; 407: my $discussoptions=''; 408: unless ($ENV{'form.replydisc'}) { 409: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) { 410: $msgoptions= 411: '<p><input type="checkbox" name="author" /> '. 412: &mt('Feedback to resource author').'</p>'; 413: } 414: if (&feedback_available(1)) { 415: $msgoptions.= 416: '<br /><input type="checkbox" name="question" /> '. 417: &mt('Question about resource content'); 418: } 419: if (&feedback_available(0,1)) { 420: $msgoptions.= 421: '<br /><input type="checkbox" name="course" /> '. 422: &mt('Question/Comment/Feedback about course content'); 423: } 424: if (&feedback_available(0,0,1)) { 425: $msgoptions.= 426: '<br /><input type="checkbox" name="policy" /> '. 427: &mt('Question/Comment/Feedback about course policy'); 428: } 429: } 430: if ($ENV{'request.course.id'}) { 431: if (&Apache::lonnet::allowed('pch', 432: $ENV{'request.course.id'}. 433: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 434: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" '. 435: ($ENV{'form.replydisc'}?' checked="1"':'').' /> '. 436: &mt('Contribution to course discussion of resource'); 437: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '. 438: &mt('Anonymous contribution to course discussion of resource'). 439: ' <i>('.&mt('name only visible to course faculty').')</i>'; 440: } 441: } 442: if ($msgoptions) { $msgoptions='<h2><img src="/adm/lonMisc/feedback.gif" />'.&mt('Sending Messages').'</h2>'.$msgoptions; } 443: if ($discussoptions) { 444: $discussoptions='<h2><img src="/adm/lonMisc/chat.gif" />'.&mt('Discussion Contributions').'</h2>'.$discussoptions; } 445: return $msgoptions.$discussoptions; 446: } 447: 448: sub resource_output { 449: my ($feedurl) = @_; 450: my $usersaw=&Apache::lonnet::ssi_body($feedurl); 451: $usersaw=~s/\<body[^\>]*\>//gi; 452: $usersaw=~s/\<\/body\>//gi; 453: $usersaw=~s/\<html\>//gi; 454: $usersaw=~s/\<\/html\>//gi; 455: $usersaw=~s/\<head\>//gi; 456: $usersaw=~s/\<\/head\>//gi; 457: $usersaw=~s/action\s*\=/would_be_action\=/gi; 458: return $usersaw; 459: } 460: 461: sub clear_out_html { 462: my ($message,$override)=@_; 463: my $cid=$ENV{'request.course.id'}; 464: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) || 465: ($override)) { 466: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG> 467: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> 468: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1, 469: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1, 470: M=>1); 471: 472: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/ 473: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge; 474: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/ 475: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge; 476: } else { 477: $message=~s/\</\&lt\;/g; 478: $message=~s/\>/\&gt\;/g; 479: } 480: return $message; 481: } 482: 483: sub assemble_email { 484: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_; 485: my $email=<<"ENDEMAIL"; 486: Refers to <a href="$feedurl">$feedurl</a> 487: 488: $message 489: ENDEMAIL 490: my $citations=<<"ENDCITE"; 491: <h2>Previous attempts of student (if applicable)</h2> 492: $prevattempts 493: <br /><hr /> 494: <h2>Original screen output (if applicable)</h2> 495: $usersaw 496: <h2>Correct Answer(s) (if applicable)</h2> 497: $useranswer 498: ENDCITE 499: return ($email,$citations); 500: } 501: 502: sub secapply { 503: my $rec=shift; 504: my $defaultflag=shift; 505: $rec=~s/\s+//g; 506: $rec=~s/\@/\:/g; 507: my ($adr,$sections)=($rec=~/^([^$]+)\(([^$]+)\)/); 508: if ($sections) { 509: foreach (split(/\;/,$sections)) { 510: if (($_ eq $ENV{'request.course.sec'}) || 511: ($defaultflag && ($_ eq '*'))) { 512: return $adr; 513: } 514: } 515: } else { 516: return $rec; 517: } 518: return ''; 519: } 520: 521: sub decide_receiver { 522: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_; 523: my $typestyle=''; 524: my %to=(); 525: if ($ENV{'form.author'}||$author) { 526: $typestyle.='Submitting as Author Feedback<br>'; 527: $feedurl=~/^\/res\/(\w+)\/(\w+)\//; 528: $to{$2.':'.$1}=1; 529: } 530: if ($ENV{'form.question'}||$question) { 531: $typestyle.='Submitting as Question<br>'; 532: foreach (split(/\,/, 533: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) 534: ) { 535: my $rec=&secapply($_,$defaultflag); 536: if ($rec) { $to{$rec}=1; } 537: } 538: } 539: if ($ENV{'form.course'}||$course) { 540: $typestyle.='Submitting as Comment<br />'; 541: foreach (split(/\,/, 542: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) 543: ) { 544: my $rec=&secapply($_,$defaultflag); 545: if ($rec) { $to{$rec}=1; } 546: } 547: } 548: if ($ENV{'form.policy'}||$policy) { 549: $typestyle.='Submitting as Policy Feedback<br />'; 550: foreach (split(/\,/, 551: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) 552: ) { 553: my $rec=&secapply($_,$defaultflag); 554: if ($rec) { $to{$rec}=1; } 555: } 556: } 557: if ((scalar(%to) eq '0') && (!$defaultflag)) { 558: ($typestyle,%to)= 559: &decide_receiver($feedurl,$author,$question,$course,$policy,1); 560: } 561: return ($typestyle,%to); 562: } 563: 564: sub feedback_available { 565: my ($question,$course,$policy)=@_; 566: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy); 567: return scalar(%to); 568: } 569: 570: sub send_msg { 571: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_; 572: my $status=''; 573: my $sendsomething=0; 574: foreach (keys %to) { 575: if ($_) { 576: my $declutter=&Apache::lonnet::declutter($feedurl); 577: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_), 578: 'Feedback ['.$declutter.']',$email,$citations,$feedurl, 579: $attachmenturl)=~/ok/) { 580: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />'; 581: } else { 582: $sendsomething++; 583: } 584: } 585: } 586: 587: my %record=&Apache::lonnet::restore('_feedback'); 588: my ($temp)=keys %record; 589: unless ($temp=~/^error\:/) { 590: my %newrecord=(); 591: $newrecord{'resource'}=$feedurl; 592: $newrecord{'subnumber'}=$record{'subnumber'}+1; 593: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') { 594: $status.='<br />'.&mt('Not registered').'<br />'; 595: } 596: } 597: 598: return ($status,$sendsomething); 599: } 600: 601: sub adddiscuss { 602: my ($symb,$email,$anon,$attachmenturl)=@_; 603: my $status=''; 604: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}. 605: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 606: 607: my %contrib=('message' => $email, 608: 'sendername' => $ENV{'user.name'}, 609: 'senderdomain' => $ENV{'user.domain'}, 610: 'screenname' => $ENV{'environment.screenname'}, 611: 'plainname' => $ENV{'environment.firstname'}.' '. 612: $ENV{'environment.middlename'}.' '. 613: $ENV{'environment.lastname'}.' '. 614: $ENV{'enrironment.generation'}, 615: 'attachmenturl'=> $attachmenturl); 616: if ($ENV{'form.replydisc'}) { 617: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1]; 618: } 619: if ($anon) { 620: $contrib{'anonymous'}='true'; 621: } 622: if (($symb) && ($email)) { 623: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '. 624: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'}, 625: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 626: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 627: my %storenewentry=($symb => time); 628: $status.='<br />'.&mt('Updating discussion time').': '. 629: &Apache::lonnet::put('discussiontimes',\%storenewentry, 630: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 631: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 632: } 633: my %record=&Apache::lonnet::restore('_discussion'); 634: my ($temp)=keys %record; 635: unless ($temp=~/^error\:/) { 636: my %newrecord=(); 637: $newrecord{'resource'}=$symb; 638: $newrecord{'subnumber'}=$record{'subnumber'}+1; 639: $status.='<br />'.&mt('Registering').': '. 640: &Apache::lonnet::cstore(\%newrecord,'_discussion'); 641: } 642: } else { 643: $status.='Failed.'; 644: } 645: return $status.'<br />'; 646: } 647: 648: # ----------------------------------------------------------- Preview function 649: 650: sub show_preview { 651: my $r=shift; 652: my $message=&clear_out_html($ENV{'form.comment'}); 653: $message=~s/\n/\<br \/\>/g; 654: $message=&Apache::lontexconvert::msgtexconverted($message); 655: $r->print('<table border="2"><tr><td>'. 656: $message.'</td></tr></table>'); 657: } 658: 659: sub generate_preview_button { 660: my $pre=&mt("Show Preview"); 661: return(<<ENDPREVIEW); 662: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview"> 663: <input type="hidden" name="comment" /> 664: <input type="button" value="$pre" 665: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" /> 666: </form> 667: ENDPREVIEW 668: } 669: 670: sub handler { 671: my $r = shift; 672: if ($r->header_only) { 673: &Apache::loncommon::content_type($r,'text/html'); 674: $r->send_http_header; 675: return OK; 676: } 677: 678: # --------------------------- Get query string for limited number of parameters 679: 680: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 681: ['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff']); 682: 683: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) { 684: # ----------------------------------------------------------------- Hide/unhide 685: &Apache::loncommon::content_type($r,'text/html'); 686: $r->send_http_header; 687: 688: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'}; 689: 690: my ($symb,$idx)=split(/\:\:\:/,$entry); 691: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 692: 693: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 694: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 695: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 696: 697: 698: my $currenthidden=$contrib{'hidden'}; 699: 700: if ($ENV{'form.hide'}) { 701: $currenthidden.='.'.$idx.'.'; 702: } else { 703: $currenthidden=~s/\.$idx\.//g; 704: } 705: my %newhash=('hidden' => $currenthidden); 706: 707: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 708: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 709: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 710: 711: &redirect_back($r,&Apache::lonnet::clutter($url), 712: &mt('Changed discussion status').'<br />','0','0'); 713: } elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) { 714: &Apache::loncommon::content_type($r,'text/html'); 715: $r->send_http_header; 716: if ($ENV{'form.threadedon'}) { 717: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'}); 718: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on'); 719: } else { 720: &Apache::lonnet::del('environment',['threadeddiscussion']); 721: &Apache::lonnet::delenv('environment\.threadeddiscussion'); 722: } 723: my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'}; 724: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 725: &redirect_back($r,&Apache::lonnet::clutter($url), 726: &mt('Changed discussion view mode').'<br />','0','0'); 727: } elsif ($ENV{'form.deldisc'}) { 728: # --------------------------------------------------------------- Hide for good 729: &Apache::loncommon::content_type($r,'text/html'); 730: $r->send_http_header; 731: 732: my $entry=$ENV{'form.deldisc'}; 733: 734: my ($symb,$idx)=split(/\:\:\:/,$entry); 735: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 736: 737: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 738: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 739: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 740: 741: 742: my $currentdeleted=$contrib{'deleted'}; 743: 744: $currentdeleted.='.'.$idx.'.'; 745: 746: my %newhash=('deleted' => $currentdeleted); 747: 748: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 749: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 750: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 751: 752: &redirect_back($r,&Apache::lonnet::clutter($url), 753: &mt('Changed discussion status').'<br />','0','0'); 754: } elsif ($ENV{'form.preview'}) { 755: # -------------------------------------------------------- User wants a preview 756: &show_preview($r); 757: } else { 758: # ------------------------------------------------------------- Normal feedback 759: my $feedurl=$ENV{'form.postdata'}; 760: $feedurl=~s/^http\:\/\///; 761: $feedurl=~s/^$ENV{'SERVER_NAME'}//; 762: $feedurl=~s/^$ENV{'HTTP_HOST'}//; 763: $feedurl=~s/\?.+$//; 764: 765: my $symb; 766: if ($ENV{'form.replydisc'}) { 767: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0]; 768: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 769: $feedurl=&Apache::lonnet::clutter($url); 770: } else { 771: $symb=&Apache::lonnet::symbread($feedurl); 772: } 773: unless ($symb) { 774: $symb=$ENV{'form.symb'}; 775: if ($symb) { 776: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 777: $feedurl=&Apache::lonnet::clutter($url); 778: } 779: } 780: my $goahead=1; 781: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) { 782: unless ($symb) { $goahead=0; } 783: } 784: # backward compatibility (bulltin boards used to be 'wrapped') 785: if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) { 786: $feedurl=~s|^/adm/wrapper||; 787: } 788: if ($goahead) { 789: # Go ahead with feedback, no ambiguous reference 790: &Apache::loncommon::content_type($r,'text/html'); 791: $r->send_http_header; 792: 793: if ( 794: ( 795: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:) 796: ) 797: || 798: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:)) 799: || 800: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/)) 801: ) { 802: # --------------------------------------------------- Print login screen header 803: unless ($ENV{'form.sendit'}) { 804: my $options=&screen_header($feedurl); 805: if ($options) { 806: &mail_screen($r,$feedurl,$options); 807: } else { 808: &fail_redirect($r,$feedurl); 809: } 810: } else { 811: 812: # Get previous user input 813: my $prevattempts=&Apache::loncommon::get_previous_attempt( 814: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 815: $ENV{'request.course.id'}); 816: 817: # Get output from resource 818: my $usersaw=&resource_output($feedurl); 819: 820: # Get resource answer (need to allow student to view grades for this to work) 821: &Apache::lonnet::appenv(('allowed.vgr'=>'F')); 822: my $useranswer=&Apache::loncommon::get_student_answers( 823: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 824: $ENV{'request.course.id'}); 825: &Apache::lonnet::delenv('allowed.vgr'); 826: # Get attachments, if any, and not too large 827: my $attachmenturl=''; 828: if ($ENV{'form.attachment.filename'}) { 829: unless (length($ENV{'form.attachment'})>131072) { 830: $attachmenturl=&Apache::lonnet::userfileupload('attachment'); 831: } 832: } 833: # Filter HTML out of message (could be nasty) 834: my $message=&clear_out_html($ENV{'form.comment'}); 835: 836: # Assemble email 837: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts, 838: $usersaw,$useranswer); 839: 840: # Who gets this? 841: my ($typestyle,%to) = &decide_receiver($feedurl); 842: 843: # Actually send mail 844: my ($status,$numsent)=&send_msg($feedurl,$email,$citations, 845: $attachmenturl,%to); 846: 847: # Discussion? Store that. 848: 849: my $numpost=0; 850: if ($ENV{'form.discuss'}) { 851: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl); 852: $numpost++; 853: } 854: 855: if ($ENV{'form.anondiscuss'}) { 856: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl); 857: $numpost++; 858: } 859: 860: 861: # Receipt screen and redirect back to where came from 862: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status); 863: 864: } 865: } else { 866: # Unable to give feedback 867: &no_redirect_back($r,$feedurl); 868: } 869: } else { 870: # Ambiguous Problem Resource 871: if ( &Apache::lonnet::mod_perl_version() == 2 ) { 872: &Apache::lonnet::cleanenv(); 873: } 874: $r->internal_redirect('/adm/ambiguous'); 875: } 876: } 877: return OK; 878: } 879: 880: 1; 881: __END__