loncom/interface/lonfeedback.pm - view

File: [LON-CAPA] / loncom / interface / lonfeedback.pm
Revision 1.70: download - view: text, annotated - select for diffs
Mon Nov 24 16:00:45 2003 UTC (20 years, 6 months ago) by www
Branches: MAIN
CVS tags: HEAD

Bug #2321: Bulletin Board was framed, conflict in non-remote mode.

1: # The LearningOnline Network 2: # Feedback 3: # 4: # $Id: lonfeedback.pm,v 1.70 2003/11/24 16:00:45 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: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 74: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 75: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 76: my $visible=0; 77: my @depth=(); 78: my @original=(); 79: my @index=(); 80: my @replies=(); 81: my %alldiscussion=(); 82: my $maxdepth=0; 83: 84: my $target=''; 85: unless ($ENV{'browser.interface'} eq 'textual' || 86: $ENV{'environment.remote'} eq 'off' ) { 87: $target='target="LONcom"'; 88: } 89: if ($contrib{'version'}) { 90: for (my $id=1;$id<=$contrib{'version'};$id++) { 91: my $idx=$id; 92: my $hidden=($contrib{'hidden'}=~/\.$idx\./); 93: my $deleted=($contrib{'deleted'}=~/\.$idx\./); 94: my $origindex='0.'; 95: if (($contrib{$idx.':replyto'}) && ($ENV{'environment.threadeddiscussion'})) { 96: # this is a follow-up message 97: $original[$idx]=$original[$contrib{$idx.':replyto'}]; 98: $depth[$idx]=$depth[$contrib{$idx.':replyto'}]+1; 99: $origindex=$index[$contrib{$idx.':replyto'}]; 100: if ($depth[$idx]>$maxdepth) { $maxdepth=$depth[$idx]; } 101: } else { 102: # this is an original message 103: $original[$idx]=0; 104: $depth[$idx]=0; 105: } 106: if ($replies[$depth[$idx]]) { 107: $replies[$depth[$idx]]++; 108: } else { 109: $replies[$depth[$idx]]=1; 110: } 111: unless ((($hidden) && (!$seeid)) || ($deleted)) { 112: $visible++; 113: my $message=$contrib{$idx.':message'}; 114: $message=~s/\n/\<br \/\>/g; 115: $message=&Apache::lontexconvert::msgtexconverted($message); 116: if ($contrib{$idx.':attachmenturl'}) { 117: my ($fname,$ft) 118: =($contrib{$idx.':attachmenturl'}=~/\/(\w+)\.(\w+)$/); 119: $message.='<p>'.&mt('Attachment').': <a href="'. 120: &Apache::lonnet::tokenwrapper( 121: $contrib{$idx.':attachmenturl'}). 122: '"><tt>'.$fname.'.'.$ft.'</tt></a></p>'; 123: } 124: if ($message) { 125: if ($hidden) { 126: $message='<font color="#888888">'.$message.'</font>'; 127: } 128: my $screenname=&Apache::loncommon::screenname( 129: $contrib{$idx.':sendername'}, 130: $contrib{$idx.':senderdomain'}); 131: my $plainname=&Apache::loncommon::nickname( 132: $contrib{$idx.':sendername'}, 133: $contrib{$idx.':senderdomain'}); 134: 135: my $sender=&mt('Anonymous'); 136: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) { 137: $sender=&Apache::loncommon::aboutmewrapper( 138: $plainname, 139: $contrib{$idx.':sendername'}, 140: $contrib{$idx.':senderdomain'}).' ('. 141: $contrib{$idx.':sendername'}.' at '. 142: $contrib{$idx.':senderdomain'}.')'; 143: if ($contrib{$idx.':anonymous'}) { 144: $sender.=' ['.&mt('anonymous').'] '. 145: $screenname; 146: } 147: if ($seeid) { 148: if ($hidden) { 149: $sender.=' <a href="/adm/feedback?unhide='. 150: $symb.':::'.$idx.'">'.&mt('Make Visible').'</a>'; 151: } else { 152: $sender.=' <a href="/adm/feedback?hide='. 153: $symb.':::'.$idx.'">'.&mt('Hide').'</a>'; 154: } 155: $sender.=' <a href="/adm/feedback?deldisc='. 156: $symb.':::'.$idx.'">'.&mt('Delete').'</a>'; 157: } 158: if (&Apache::lonnet::allowed('pch', 159: $ENV{'request.course.id'}. 160: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 161: $sender.=' <a href="/adm/feedback?replydisc='. 162: $symb.':::'.$idx.'" '.$target.'>'.&mt('Reply').'</a>'; 163: } 164: } else { 165: if ($screenname) { 166: $sender='<i>'.$screenname.'</i>'; 167: } 168: } 169: my $vgrlink; 170: if ($viewgrades) { 171: $vgrlink=&Apache::loncommon::submlink('Submissions', 172: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb); 173: } 174: #figure out at what position this needs to print 175: my $thisindex=$idx; 176: if ($ENV{'environment.threadeddiscussion'}) { 177: $thisindex=$origindex.substr('00'.$replies[$depth[$idx]],-2,2); 178: } 179: $alldiscussion{$thisindex}=$idx; 180: $index[$idx]=$thisindex; 181: $discussionitems[$idx]='<p><b>'.$sender.'</b> '.$vgrlink.' ('. 182: localtime($contrib{$idx.':timestamp'}). 183: '):<blockquote>'.$message. 184: '</blockquote></p>'; 185: } 186: } 187: } 188: } 189: my $discussion=''; 190: if ($visible) { 191: # Print a the discusssion 192: $discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">'; 193: if ($visible>2) { 194: my $colspan=$maxdepth+1; 195: $discussion.='<tr><td bgcolor="DDDDBB" colspan="'.$colspan.'">'. 196: '<a href="/adm/feedback?threadedon='.$symb.'">'.&mt('Threaded View').'</a>  '. 197: '<a href="/adm/feedback?threadedoff='.$symb.'">'.&mt('Chronological View').'</a>'. 198: '</td></tr>'; 199: } 200: 201: foreach (sort { $a <=> $b } keys %alldiscussion) { 202: $discussion.="\n<tr>"; 203: my $thisdepth=$depth[$alldiscussion{$_}]; 204: for (1..$thisdepth) { 205: $discussion.='<td>   </td>'; 206: } 207: my $colspan=$maxdepth-$thisdepth+1; 208: $discussion.="<td bgcolor='#CCCCCC' colspan='".$colspan."'>".$discussionitems[$alldiscussion{$_}]. 209: "</td></tr>"; 210: } 211: $discussion.='</table>'; 212: } 213: if ($discussiononly) { 214: $discussion.=(<<ENDDISCUSS); 215: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> 216: <input type="submit" name="discuss" value="Post Discussion" /> 217: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" /> 218: <input type="hidden" name="symb" value="$symb" /> 219: <input type="hidden" name="sendit" value="true" /> 220: <br /> 221: <font size="1">Note: in anonymous discussion, your name is visible only to 222: course faculty</font><br /> 223: <textarea name="comment" cols="60" rows="10" wrap="hard"></textarea> 224: <p> 225: Attachment (128 KB max size): <input type="file" name="attachment" /> 226: </p> 227: </form> 228: ENDDISCUSS 229: $discussion.=&generate_preview_button(); 230: } 231: return $discussion; 232: } 233: 234: sub mail_screen { 235: my ($r,$feedurl,$options) = @_; 236: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion', 237: '','onLoad="window.focus();"'); 238: my $title=&Apache::lonnet::gettitle($feedurl); 239: if (!$title) { $title = $feedurl; } 240: my $quote=''; 241: if ($ENV{'form.replydisc'}) { 242: my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'}); 243: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 244: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 245: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 246: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) { 247: my $message=$contrib{$idx.':message'}; 248: $message=~s/\n/\<br \/\>/g; 249: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>'; 250: } 251: } 252: my $latexHelp = Apache::loncommon::helpLatexCheatsheet(); 253: $r->print(<<ENDDOCUMENT); 254: <html> 255: <head> 256: <title>The LearningOnline Network with CAPA</title> 257: <meta http-equiv="pragma" content="no-cache"></meta> 258: <script type="text/javascript"> 259: // 300: </script> 301: </head> 302: $bodytag 303: <h2><tt>$title</tt></h2> 304: <form action="/adm/feedback" method="post" name="mailform" 305: enctype="multipart/form-data"> 306: <input type="hidden" name="postdata" value="$feedurl" /> 307: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" /> 308: Please check at least one of the following feedback types: 309: $options<hr /> 310: $quote 311: <p>My question/comment/feedback:</p> 312: <p> 313: $latexHelp 314: <textarea name="comment" cols="60" rows="10" wrap="hard"> 315: </textarea></p> 316: <p> 317: Attachment (128 KB max size): <input type="file" name="attachment" /> 318: </p> 319: <p> 320: <input type="hidden" name="sendit" value="1" /> 321: <input type="button" value="Send Feedback" onClick='gosubmit();' /> 322: </p> 323: </form> 324: ENDDOCUMENT 325: $r->print(&generate_preview_button().'</body></html>'); 326: } 327: 328: sub fail_redirect { 329: my ($r,$feedurl) = @_; 330: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' }; 331: $r->print (<<ENDFAILREDIR); 332: <head><title>Feedback not sent</title> 333: <meta http-equiv="pragma" content="no-cache" /> 334: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" /> 335: </head> 336: <html> 337: <body bgcolor="#FFFFFF"> 338: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 339: <b>Sorry, no recipients ...</b> 340: </body> 341: </html> 342: ENDFAILREDIR 343: } 344: 345: sub redirect_back { 346: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status) = @_; 347: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' }; 348: $r->print (<<ENDREDIR); 349: <head> 350: <title>Feedback sent</title> 351: <meta http-equiv="pragma" content="no-cache" /> 352: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl"> 353: </head> 354: <html> 355: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'> 356: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 357: $typestyle 358: <b>Sent $sendsomething message(s), and $sendposts post(s).</b> 359: <font color="red">$status</font> 360: <form name="reldt" action="$feedurl" target="loncapaclient"> 361: </form> 362: </body> 363: </html> 364: ENDREDIR 365: } 366: 367: sub no_redirect_back { 368: my ($r,$feedurl) = @_; 369: $r->print (<<ENDNOREDIR); 370: <head><title>Feedback not sent</title> 371: <meta http-equiv="pragma" content="no-cache" /> 372: ENDNOREDIR 373: 374: if ($feedurl!~/^\/adm\/feedback/) { 375: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">'); 376: } 377: 378: $r->print (<<ENDNOREDIRTWO); 379: </head> 380: <html> 381: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'> 382: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 383: <b>Sorry, no feedback possible on this resource ...</b> 384: </body> 385: </html> 386: ENDNOREDIRTWO 387: } 388: 389: sub screen_header { 390: my ($feedurl) = @_; 391: my $msgoptions=''; 392: my $discussoptions=''; 393: unless ($ENV{'form.replydisc'}) { 394: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) { 395: $msgoptions= 396: '<p><input type="checkbox" name="author" /> '. 397: &mt('Feedback to resource author').'</p>'; 398: } 399: if (&feedback_available(1)) { 400: $msgoptions.= 401: '<br /><input type="checkbox" name="question" /> '. 402: &mt('Question about resource content'); 403: } 404: if (&feedback_available(0,1)) { 405: $msgoptions.= 406: '<br /><input type="checkbox" name="course" /> '. 407: &mt('Question/Comment/Feedback about course content'); 408: } 409: if (&feedback_available(0,0,1)) { 410: $msgoptions.= 411: '<br /><input type="checkbox" name="policy" /> '. 412: &mt('Question/Comment/Feedback about course policy'); 413: } 414: } 415: if ($ENV{'request.course.id'}) { 416: if (&Apache::lonnet::allowed('pch', 417: $ENV{'request.course.id'}. 418: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 419: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" /> '. 420: &mt('Contribution to course discussion of resource'); 421: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '. 422: &mt('Anonymous contribution to course discussion of resource'). 423: ' <i>('.&mt('name only visible to course faculty').')</i>'; 424: } 425: } 426: if ($msgoptions) { $msgoptions='<h2>'.&mt('Sending Messages').'</h2>'.$msgoptions; } 427: if ($discussoptions) { 428: $discussoptions='<h2>'.&mt('Discussion Contributions').'</h2>'.$discussoptions; } 429: return $msgoptions.$discussoptions; 430: } 431: 432: sub resource_output { 433: my ($feedurl) = @_; 434: my $usersaw=&Apache::lonnet::ssi_body($feedurl); 435: $usersaw=~s/\<body[^\>]*\>//gi; 436: $usersaw=~s/\<\/body\>//gi; 437: $usersaw=~s/\<html\>//gi; 438: $usersaw=~s/\<\/html\>//gi; 439: $usersaw=~s/\<head\>//gi; 440: $usersaw=~s/\<\/head\>//gi; 441: $usersaw=~s/action\s*\=/would_be_action\=/gi; 442: return $usersaw; 443: } 444: 445: sub clear_out_html { 446: my ($message,$override)=@_; 447: my $cid=$ENV{'request.course.id'}; 448: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) || 449: ($override)) { 450: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG> 451: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> 452: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1, 453: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1, 454: M=>1); 455: 456: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/ 457: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge; 458: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/ 459: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge; 460: } else { 461: $message=~s/\</\&lt\;/g; 462: $message=~s/\>/\&gt\;/g; 463: } 464: return $message; 465: } 466: 467: sub assemble_email { 468: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_; 469: my $email=<<"ENDEMAIL"; 470: Refers to <a href="$feedurl">$feedurl</a> 471: 472: $message 473: ENDEMAIL 474: my $citations=<<"ENDCITE"; 475: <h2>Previous attempts of student (if applicable)</h2> 476: $prevattempts 477: <br /><hr /> 478: <h2>Original screen output (if applicable)</h2> 479: $usersaw 480: <h2>Correct Answer(s) (if applicable)</h2> 481: $useranswer 482: ENDCITE 483: return ($email,$citations); 484: } 485: 486: sub secapply { 487: my $rec=shift; 488: my $defaultflag=shift; 489: $rec=~s/\s+//g; 490: $rec=~s/\@/\:/g; 491: my ($adr,$sections)=($rec=~/^([^$]+)\(([^$]+)\)/); 492: if ($sections) { 493: foreach (split(/\;/,$sections)) { 494: if (($_ eq $ENV{'request.course.sec'}) || 495: ($defaultflag && ($_ eq '*'))) { 496: return $adr; 497: } 498: } 499: } else { 500: return $rec; 501: } 502: return ''; 503: } 504: 505: sub decide_receiver { 506: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_; 507: my $typestyle=''; 508: my %to=(); 509: if ($ENV{'form.author'}||$author) { 510: $typestyle.='Submitting as Author Feedback<br>'; 511: $feedurl=~/^\/res\/(\w+)\/(\w+)\//; 512: $to{$2.':'.$1}=1; 513: } 514: if ($ENV{'form.question'}||$question) { 515: $typestyle.='Submitting as Question<br>'; 516: foreach (split(/\,/, 517: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) 518: ) { 519: my $rec=&secapply($_,$defaultflag); 520: if ($rec) { $to{$rec}=1; } 521: } 522: } 523: if ($ENV{'form.course'}||$course) { 524: $typestyle.='Submitting as Comment<br />'; 525: foreach (split(/\,/, 526: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) 527: ) { 528: my $rec=&secapply($_,$defaultflag); 529: if ($rec) { $to{$rec}=1; } 530: } 531: } 532: if ($ENV{'form.policy'}||$policy) { 533: $typestyle.='Submitting as Policy Feedback<br />'; 534: foreach (split(/\,/, 535: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) 536: ) { 537: my $rec=&secapply($_,$defaultflag); 538: if ($rec) { $to{$rec}=1; } 539: } 540: } 541: if ((scalar(%to) eq '0') && (!$defaultflag)) { 542: ($typestyle,%to)= 543: &decide_receiver($feedurl,$author,$question,$course,$policy,1); 544: } 545: return ($typestyle,%to); 546: } 547: 548: sub feedback_available { 549: my ($question,$course,$policy)=@_; 550: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy); 551: return scalar(%to); 552: } 553: 554: sub send_msg { 555: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_; 556: my $status=''; 557: my $sendsomething=0; 558: foreach (keys %to) { 559: if ($_) { 560: my $declutter=&Apache::lonnet::declutter($feedurl); 561: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_), 562: 'Feedback ['.$declutter.']',$email,$citations,$feedurl, 563: $attachmenturl)=~/ok/) { 564: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />'; 565: } else { 566: $sendsomething++; 567: } 568: } 569: } 570: 571: my %record=&Apache::lonnet::restore('_feedback'); 572: my ($temp)=keys %record; 573: unless ($temp=~/^error\:/) { 574: my %newrecord=(); 575: $newrecord{'resource'}=$feedurl; 576: $newrecord{'subnumber'}=$record{'subnumber'}+1; 577: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') { 578: $status.='<br />'.&mt('Not registered').'<br />'; 579: } 580: } 581: 582: return ($status,$sendsomething); 583: } 584: 585: sub adddiscuss { 586: my ($symb,$email,$anon,$attachmenturl)=@_; 587: my $status=''; 588: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}. 589: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 590: 591: my %contrib=('message' => $email, 592: 'sendername' => $ENV{'user.name'}, 593: 'senderdomain' => $ENV{'user.domain'}, 594: 'screenname' => $ENV{'environment.screenname'}, 595: 'plainname' => $ENV{'environment.firstname'}.' '. 596: $ENV{'environment.middlename'}.' '. 597: $ENV{'environment.lastname'}.' '. 598: $ENV{'enrironment.generation'}, 599: 'attachmenturl'=> $attachmenturl); 600: if ($ENV{'form.replydisc'}) { 601: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1]; 602: } 603: if ($anon) { 604: $contrib{'anonymous'}='true'; 605: } 606: if (($symb) && ($email)) { 607: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '. 608: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'}, 609: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 610: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 611: my %storenewentry=($symb => time); 612: $status.='<br />'.&mt('Updating discussion time').': '. 613: &Apache::lonnet::put('discussiontimes',\%storenewentry, 614: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 615: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 616: } 617: my %record=&Apache::lonnet::restore('_discussion'); 618: my ($temp)=keys %record; 619: unless ($temp=~/^error\:/) { 620: my %newrecord=(); 621: $newrecord{'resource'}=$symb; 622: $newrecord{'subnumber'}=$record{'subnumber'}+1; 623: $status.='<br />'.&mt('Registering').': '. 624: &Apache::lonnet::cstore(\%newrecord,'_discussion'); 625: } 626: } else { 627: $status.='Failed.'; 628: } 629: return $status.'<br />'; 630: } 631: 632: # ----------------------------------------------------------- Preview function 633: 634: sub show_preview { 635: my $r=shift; 636: my $message=&clear_out_html($ENV{'form.comment'}); 637: $message=~s/\n/\<br \/\>/g; 638: $message=&Apache::lontexconvert::msgtexconverted($message); 639: $r->print('<table border="2"><tr><td>'. 640: $message.'</td></tr></table>'); 641: } 642: 643: sub generate_preview_button { 644: my $pre=&mt("Show Preview"); 645: return(<<ENDPREVIEW); 646: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview"> 647: <input type="hidden" name="comment" /> 648: <input type="button" value="$pre" 649: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" /> 650: </form> 651: ENDPREVIEW 652: } 653: sub handler { 654: my $r = shift; 655: if ($r->header_only) { 656: $r->content_type('text/html'); 657: $r->send_http_header; 658: return OK; 659: } 660: 661: # --------------------------- Get query string for limited number of parameters 662: 663: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 664: ['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff']); 665: 666: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) { 667: # ----------------------------------------------------------------- Hide/unhide 668: $r->content_type('text/html'); 669: $r->send_http_header; 670: 671: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'}; 672: 673: my ($symb,$idx)=split(/\:\:\:/,$entry); 674: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 675: 676: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 677: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 678: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 679: 680: 681: my $currenthidden=$contrib{'hidden'}; 682: 683: if ($ENV{'form.hide'}) { 684: $currenthidden.='.'.$idx.'.'; 685: } else { 686: $currenthidden=~s/\.$idx\.//g; 687: } 688: my %newhash=('hidden' => $currenthidden); 689: 690: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 691: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 692: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 693: 694: &redirect_back($r,&Apache::lonnet::clutter($url), 695: &mt('Changed discussion status').'<br />','0','0'); 696: } elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) { 697: if ($ENV{'form.threadedon'}) { 698: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'}); 699: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on'); 700: } else { 701: &Apache::lonnet::del('environment',['threadeddiscussion']); 702: &Apache::lonnet::delenv('environment\.threadeddiscussion'); 703: } 704: my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'}; 705: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 706: &redirect_back($r,&Apache::lonnet::clutter($url), 707: &mt('Changed discussion view mode').'<br />','0','0'); 708: } elsif ($ENV{'form.deldisc'}) { 709: # --------------------------------------------------------------- Hide for good 710: $r->content_type('text/html'); 711: $r->send_http_header; 712: 713: my $entry=$ENV{'form.deldisc'}; 714: 715: my ($symb,$idx)=split(/\:\:\:/,$entry); 716: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 717: 718: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 719: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 720: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 721: 722: 723: my $currentdeleted=$contrib{'deleted'}; 724: 725: $currentdeleted.='.'.$idx.'.'; 726: 727: my %newhash=('deleted' => $currentdeleted); 728: 729: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 730: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 731: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 732: 733: &redirect_back($r,&Apache::lonnet::clutter($url), 734: &mt('Changed discussion status').'<br />','0','0'); 735: } elsif ($ENV{'form.preview'}) { 736: # -------------------------------------------------------- User wants a preview 737: &show_preview($r); 738: } else { 739: # ------------------------------------------------------------- Normal feedback 740: my $feedurl=$ENV{'form.postdata'}; 741: $feedurl=~s/^http\:\/\///; 742: $feedurl=~s/^$ENV{'SERVER_NAME'}//; 743: $feedurl=~s/^$ENV{'HTTP_HOST'}//; 744: $feedurl=~s/\?.+$//; 745: 746: my $symb; 747: if ($ENV{'form.replydisc'}) { 748: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0]; 749: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 750: $feedurl=&Apache::lonnet::clutter($url); 751: } else { 752: $symb=&Apache::lonnet::symbread($feedurl); 753: } 754: unless ($symb) { 755: $symb=$ENV{'form.symb'}; 756: if ($symb) { 757: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 758: $feedurl=&Apache::lonnet::clutter($url); 759: } 760: } 761: my $goahead=1; 762: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) { 763: unless ($symb) { $goahead=0; } 764: } 765: 766: if ($goahead) { 767: # Go ahead with feedback, no ambiguous reference 768: $r->content_type('text/html'); 769: $r->send_http_header; 770: 771: if ( 772: ( 773: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:) 774: ) 775: || 776: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:)) 777: || 778: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/)) 779: ) { 780: # --------------------------------------------------- Print login screen header 781: unless ($ENV{'form.sendit'}) { 782: my $options=&screen_header($feedurl); 783: if ($options) { 784: &mail_screen($r,$feedurl,$options); 785: } else { 786: &fail_redirect($r,$feedurl); 787: } 788: } else { 789: 790: # Get previous user input 791: my $prevattempts=&Apache::loncommon::get_previous_attempt( 792: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 793: $ENV{'request.course.id'}); 794: 795: # Get output from resource 796: my $usersaw=&resource_output($feedurl); 797: 798: # Get resource answer (need to allow student to view grades for this to work) 799: &Apache::lonnet::appenv(('allowed.vgr'=>'F')); 800: my $useranswer=&Apache::loncommon::get_student_answers( 801: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 802: $ENV{'request.course.id'}); 803: &Apache::lonnet::delenv('allowed.vgr'); 804: # Get attachments, if any, and not too large 805: my $attachmenturl=''; 806: if ($ENV{'form.attachment.filename'}) { 807: unless (length($ENV{'form.attachment'})>131072) { 808: $attachmenturl=&Apache::lonnet::userfileupload('attachment'); 809: } 810: } 811: # Filter HTML out of message (could be nasty) 812: my $message=&clear_out_html($ENV{'form.comment'}); 813: 814: # Assemble email 815: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts, 816: $usersaw,$useranswer); 817: 818: # Who gets this? 819: my ($typestyle,%to) = &decide_receiver($feedurl); 820: 821: # Actually send mail 822: my ($status,$numsent)=&send_msg($feedurl,$email,$citations, 823: $attachmenturl,%to); 824: 825: # Discussion? Store that. 826: 827: my $numpost=0; 828: if ($ENV{'form.discuss'}) { 829: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl); 830: $numpost++; 831: } 832: 833: if ($ENV{'form.anondiscuss'}) { 834: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl); 835: $numpost++; 836: } 837: 838: 839: # Receipt screen and redirect back to where came from 840: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status); 841: 842: } 843: } else { 844: # Unable to give feedback 845: &no_redirect_back($r,$feedurl); 846: } 847: } else { 848: # Ambiguous Problem Resource 849: if ( &Apache::lonnet::mod_perl_version() == 2 ) { 850: &Apache::lonnet::cleanenv(); 851: } 852: $r->internal_redirect('/adm/ambiguous'); 853: } 854: } 855: return OK; 856: } 857: 858: 1; 859: __END__