loncom/interface/lonfeedback.pm - view

File: [LON-CAPA] / loncom / interface / lonfeedback.pm
Revision 1.69: download - view: text, annotated - select for diffs
Fri Nov 7 21:21:17 2003 UTC (20 years, 7 months ago) by www
Branches: MAIN
CVS tags: HEAD

Threaded discussion done (looks like).

1: # The LearningOnline Network 2: # Feedback 3: # 4: # $Id: lonfeedback.pm,v 1.69 2003/11/07 21:21:17 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: $r->print (<<ENDFAILREDIR); 331: <head><title>Feedback not sent</title> 332: <meta http-equiv="pragma" content="no-cache" /> 333: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" /> 334: </head> 335: <html> 336: <body bgcolor="#FFFFFF"> 337: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 338: <b>Sorry, no recipients ...</b> 339: </body> 340: </html> 341: ENDFAILREDIR 342: } 343: 344: sub redirect_back { 345: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status) = @_; 346: $r->print (<<ENDREDIR); 347: <head> 348: <title>Feedback sent</title> 349: <meta http-equiv="pragma" content="no-cache" /> 350: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl"> 351: </head> 352: <html> 353: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'> 354: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 355: $typestyle 356: <b>Sent $sendsomething message(s), and $sendposts post(s).</b> 357: <font color="red">$status</font> 358: <form name="reldt" action="$feedurl" target="loncapaclient"> 359: </form> 360: </body> 361: </html> 362: ENDREDIR 363: } 364: 365: sub no_redirect_back { 366: my ($r,$feedurl) = @_; 367: $r->print (<<ENDNOREDIR); 368: <head><title>Feedback not sent</title> 369: <meta http-equiv="pragma" content="no-cache" /> 370: ENDNOREDIR 371: 372: if ($feedurl!~/^\/adm\/feedback/) { 373: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">'); 374: } 375: 376: $r->print (<<ENDNOREDIRTWO); 377: </head> 378: <html> 379: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'> 380: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 381: <b>Sorry, no feedback possible on this resource ...</b> 382: </body> 383: </html> 384: ENDNOREDIRTWO 385: } 386: 387: sub screen_header { 388: my ($feedurl) = @_; 389: my $msgoptions=''; 390: my $discussoptions=''; 391: unless ($ENV{'form.replydisc'}) { 392: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) { 393: $msgoptions= 394: '<p><input type="checkbox" name="author" /> '. 395: &mt('Feedback to resource author').'</p>'; 396: } 397: if (&feedback_available(1)) { 398: $msgoptions.= 399: '<br /><input type="checkbox" name="question" /> '. 400: &mt('Question about resource content'); 401: } 402: if (&feedback_available(0,1)) { 403: $msgoptions.= 404: '<br /><input type="checkbox" name="course" /> '. 405: &mt('Question/Comment/Feedback about course content'); 406: } 407: if (&feedback_available(0,0,1)) { 408: $msgoptions.= 409: '<br /><input type="checkbox" name="policy" /> '. 410: &mt('Question/Comment/Feedback about course policy'); 411: } 412: } 413: if ($ENV{'request.course.id'}) { 414: if (&Apache::lonnet::allowed('pch', 415: $ENV{'request.course.id'}. 416: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 417: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" /> '. 418: &mt('Contribution to course discussion of resource'); 419: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '. 420: &mt('Anonymous contribution to course discussion of resource'). 421: ' <i>('.&mt('name only visible to course faculty').')</i>'; 422: } 423: } 424: if ($msgoptions) { $msgoptions='<h2>'.&mt('Sending Messages').'</h2>'.$msgoptions; } 425: if ($discussoptions) { 426: $discussoptions='<h2>'.&mt('Discussion Contributions').'</h2>'.$discussoptions; } 427: return $msgoptions.$discussoptions; 428: } 429: 430: sub resource_output { 431: my ($feedurl) = @_; 432: my $usersaw=&Apache::lonnet::ssi_body($feedurl); 433: $usersaw=~s/\<body[^\>]*\>//gi; 434: $usersaw=~s/\<\/body\>//gi; 435: $usersaw=~s/\<html\>//gi; 436: $usersaw=~s/\<\/html\>//gi; 437: $usersaw=~s/\<head\>//gi; 438: $usersaw=~s/\<\/head\>//gi; 439: $usersaw=~s/action\s*\=/would_be_action\=/gi; 440: return $usersaw; 441: } 442: 443: sub clear_out_html { 444: my ($message,$override)=@_; 445: my $cid=$ENV{'request.course.id'}; 446: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) || 447: ($override)) { 448: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG> 449: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> 450: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1, 451: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1, 452: M=>1); 453: 454: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/ 455: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge; 456: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/ 457: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge; 458: } else { 459: $message=~s/\</\&lt\;/g; 460: $message=~s/\>/\&gt\;/g; 461: } 462: return $message; 463: } 464: 465: sub assemble_email { 466: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_; 467: my $email=<<"ENDEMAIL"; 468: Refers to <a href="$feedurl">$feedurl</a> 469: 470: $message 471: ENDEMAIL 472: my $citations=<<"ENDCITE"; 473: <h2>Previous attempts of student (if applicable)</h2> 474: $prevattempts 475: <br /><hr /> 476: <h2>Original screen output (if applicable)</h2> 477: $usersaw 478: <h2>Correct Answer(s) (if applicable)</h2> 479: $useranswer 480: ENDCITE 481: return ($email,$citations); 482: } 483: 484: sub secapply { 485: my $rec=shift; 486: my $defaultflag=shift; 487: $rec=~s/\s+//g; 488: $rec=~s/\@/\:/g; 489: my ($adr,$sections)=($rec=~/^([^$]+)\(([^$]+)\)/); 490: if ($sections) { 491: foreach (split(/\;/,$sections)) { 492: if (($_ eq $ENV{'request.course.sec'}) || 493: ($defaultflag && ($_ eq '*'))) { 494: return $adr; 495: } 496: } 497: } else { 498: return $rec; 499: } 500: return ''; 501: } 502: 503: sub decide_receiver { 504: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_; 505: my $typestyle=''; 506: my %to=(); 507: if ($ENV{'form.author'}||$author) { 508: $typestyle.='Submitting as Author Feedback<br>'; 509: $feedurl=~/^\/res\/(\w+)\/(\w+)\//; 510: $to{$2.':'.$1}=1; 511: } 512: if ($ENV{'form.question'}||$question) { 513: $typestyle.='Submitting as Question<br>'; 514: foreach (split(/\,/, 515: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) 516: ) { 517: my $rec=&secapply($_,$defaultflag); 518: if ($rec) { $to{$rec}=1; } 519: } 520: } 521: if ($ENV{'form.course'}||$course) { 522: $typestyle.='Submitting as Comment<br />'; 523: foreach (split(/\,/, 524: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) 525: ) { 526: my $rec=&secapply($_,$defaultflag); 527: if ($rec) { $to{$rec}=1; } 528: } 529: } 530: if ($ENV{'form.policy'}||$policy) { 531: $typestyle.='Submitting as Policy Feedback<br />'; 532: foreach (split(/\,/, 533: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) 534: ) { 535: my $rec=&secapply($_,$defaultflag); 536: if ($rec) { $to{$rec}=1; } 537: } 538: } 539: if ((scalar(%to) eq '0') && (!$defaultflag)) { 540: ($typestyle,%to)= 541: &decide_receiver($feedurl,$author,$question,$course,$policy,1); 542: } 543: return ($typestyle,%to); 544: } 545: 546: sub feedback_available { 547: my ($question,$course,$policy)=@_; 548: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy); 549: return scalar(%to); 550: } 551: 552: sub send_msg { 553: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_; 554: my $status=''; 555: my $sendsomething=0; 556: foreach (keys %to) { 557: if ($_) { 558: my $declutter=&Apache::lonnet::declutter($feedurl); 559: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_), 560: 'Feedback ['.$declutter.']',$email,$citations,$feedurl, 561: $attachmenturl)=~/ok/) { 562: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />'; 563: } else { 564: $sendsomething++; 565: } 566: } 567: } 568: 569: my %record=&Apache::lonnet::restore('_feedback'); 570: my ($temp)=keys %record; 571: unless ($temp=~/^error\:/) { 572: my %newrecord=(); 573: $newrecord{'resource'}=$feedurl; 574: $newrecord{'subnumber'}=$record{'subnumber'}+1; 575: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') { 576: $status.='<br />'.&mt('Not registered').'<br />'; 577: } 578: } 579: 580: return ($status,$sendsomething); 581: } 582: 583: sub adddiscuss { 584: my ($symb,$email,$anon,$attachmenturl)=@_; 585: my $status=''; 586: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}. 587: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 588: 589: my %contrib=('message' => $email, 590: 'sendername' => $ENV{'user.name'}, 591: 'senderdomain' => $ENV{'user.domain'}, 592: 'screenname' => $ENV{'environment.screenname'}, 593: 'plainname' => $ENV{'environment.firstname'}.' '. 594: $ENV{'environment.middlename'}.' '. 595: $ENV{'environment.lastname'}.' '. 596: $ENV{'enrironment.generation'}, 597: 'attachmenturl'=> $attachmenturl); 598: if ($ENV{'form.replydisc'}) { 599: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1]; 600: } 601: if ($anon) { 602: $contrib{'anonymous'}='true'; 603: } 604: if (($symb) && ($email)) { 605: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '. 606: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'}, 607: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 608: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 609: my %storenewentry=($symb => time); 610: $status.='<br />'.&mt('Updating discussion time').': '. 611: &Apache::lonnet::put('discussiontimes',\%storenewentry, 612: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 613: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 614: } 615: my %record=&Apache::lonnet::restore('_discussion'); 616: my ($temp)=keys %record; 617: unless ($temp=~/^error\:/) { 618: my %newrecord=(); 619: $newrecord{'resource'}=$symb; 620: $newrecord{'subnumber'}=$record{'subnumber'}+1; 621: $status.='<br />'.&mt('Registering').': '. 622: &Apache::lonnet::cstore(\%newrecord,'_discussion'); 623: } 624: } else { 625: $status.='Failed.'; 626: } 627: return $status.'<br />'; 628: } 629: 630: # ----------------------------------------------------------- Preview function 631: 632: sub show_preview { 633: my $r=shift; 634: my $message=&clear_out_html($ENV{'form.comment'}); 635: $message=~s/\n/\<br \/\>/g; 636: $message=&Apache::lontexconvert::msgtexconverted($message); 637: $r->print('<table border="2"><tr><td>'. 638: $message.'</td></tr></table>'); 639: } 640: 641: sub generate_preview_button { 642: my $pre=&mt("Show Preview"); 643: return(<<ENDPREVIEW); 644: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview"> 645: <input type="hidden" name="comment" /> 646: <input type="button" value="$pre" 647: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" /> 648: </form> 649: ENDPREVIEW 650: } 651: sub handler { 652: my $r = shift; 653: if ($r->header_only) { 654: $r->content_type('text/html'); 655: $r->send_http_header; 656: return OK; 657: } 658: 659: # --------------------------- Get query string for limited number of parameters 660: 661: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 662: ['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff']); 663: 664: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) { 665: # ----------------------------------------------------------------- Hide/unhide 666: $r->content_type('text/html'); 667: $r->send_http_header; 668: 669: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'}; 670: 671: my ($symb,$idx)=split(/\:\:\:/,$entry); 672: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 673: 674: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 675: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 676: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 677: 678: 679: my $currenthidden=$contrib{'hidden'}; 680: 681: if ($ENV{'form.hide'}) { 682: $currenthidden.='.'.$idx.'.'; 683: } else { 684: $currenthidden=~s/\.$idx\.//g; 685: } 686: my %newhash=('hidden' => $currenthidden); 687: 688: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 689: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 690: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 691: 692: &redirect_back($r,&Apache::lonnet::clutter($url), 693: &mt('Changed discussion status').'<br />','0','0'); 694: } elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) { 695: if ($ENV{'form.threadedon'}) { 696: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'}); 697: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on'); 698: } else { 699: &Apache::lonnet::del('environment',['threadeddiscussion']); 700: &Apache::lonnet::delenv('environment\.threadeddiscussion'); 701: } 702: my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'}; 703: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 704: &redirect_back($r,&Apache::lonnet::clutter($url), 705: &mt('Changed discussion view mode').'<br />','0','0'); 706: } elsif ($ENV{'form.deldisc'}) { 707: # --------------------------------------------------------------- Hide for good 708: $r->content_type('text/html'); 709: $r->send_http_header; 710: 711: my $entry=$ENV{'form.deldisc'}; 712: 713: my ($symb,$idx)=split(/\:\:\:/,$entry); 714: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 715: 716: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 717: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 718: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 719: 720: 721: my $currentdeleted=$contrib{'deleted'}; 722: 723: $currentdeleted.='.'.$idx.'.'; 724: 725: my %newhash=('deleted' => $currentdeleted); 726: 727: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 728: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 729: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 730: 731: &redirect_back($r,&Apache::lonnet::clutter($url), 732: &mt('Changed discussion status').'<br />','0','0'); 733: } elsif ($ENV{'form.preview'}) { 734: # -------------------------------------------------------- User wants a preview 735: &show_preview($r); 736: } else { 737: # ------------------------------------------------------------- Normal feedback 738: my $feedurl=$ENV{'form.postdata'}; 739: $feedurl=~s/^http\:\/\///; 740: $feedurl=~s/^$ENV{'SERVER_NAME'}//; 741: $feedurl=~s/^$ENV{'HTTP_HOST'}//; 742: $feedurl=~s/\?.+$//; 743: 744: my $symb; 745: if ($ENV{'form.replydisc'}) { 746: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0]; 747: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 748: $feedurl=&Apache::lonnet::clutter($url); 749: } else { 750: $symb=&Apache::lonnet::symbread($feedurl); 751: } 752: unless ($symb) { 753: $symb=$ENV{'form.symb'}; 754: if ($symb) { 755: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 756: $feedurl=&Apache::lonnet::clutter($url); 757: } 758: } 759: my $goahead=1; 760: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) { 761: unless ($symb) { $goahead=0; } 762: } 763: 764: if ($goahead) { 765: # Go ahead with feedback, no ambiguous reference 766: $r->content_type('text/html'); 767: $r->send_http_header; 768: 769: if ( 770: ( 771: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:) 772: ) 773: || 774: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:)) 775: || 776: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/)) 777: ) { 778: # --------------------------------------------------- Print login screen header 779: unless ($ENV{'form.sendit'}) { 780: my $options=&screen_header($feedurl); 781: if ($options) { 782: &mail_screen($r,$feedurl,$options); 783: } else { 784: &fail_redirect($r,$feedurl); 785: } 786: } else { 787: 788: # Get previous user input 789: my $prevattempts=&Apache::loncommon::get_previous_attempt( 790: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 791: $ENV{'request.course.id'}); 792: 793: # Get output from resource 794: my $usersaw=&resource_output($feedurl); 795: 796: # Get resource answer (need to allow student to view grades for this to work) 797: &Apache::lonnet::appenv(('allowed.vgr'=>'F')); 798: my $useranswer=&Apache::loncommon::get_student_answers( 799: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 800: $ENV{'request.course.id'}); 801: &Apache::lonnet::delenv('allowed.vgr'); 802: # Get attachments, if any, and not too large 803: my $attachmenturl=''; 804: if ($ENV{'form.attachment.filename'}) { 805: unless (length($ENV{'form.attachment'})>131072) { 806: $attachmenturl=&Apache::lonnet::userfileupload('attachment'); 807: } 808: } 809: # Filter HTML out of message (could be nasty) 810: my $message=&clear_out_html($ENV{'form.comment'}); 811: 812: # Assemble email 813: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts, 814: $usersaw,$useranswer); 815: 816: # Who gets this? 817: my ($typestyle,%to) = &decide_receiver($feedurl); 818: 819: # Actually send mail 820: my ($status,$numsent)=&send_msg($feedurl,$email,$citations, 821: $attachmenturl,%to); 822: 823: # Discussion? Store that. 824: 825: my $numpost=0; 826: if ($ENV{'form.discuss'}) { 827: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl); 828: $numpost++; 829: } 830: 831: if ($ENV{'form.anondiscuss'}) { 832: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl); 833: $numpost++; 834: } 835: 836: 837: # Receipt screen and redirect back to where came from 838: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status); 839: 840: } 841: } else { 842: # Unable to give feedback 843: &no_redirect_back($r,$feedurl); 844: } 845: } else { 846: # Ambiguous Problem Resource 847: if ( &Apache::lonnet::mod_perl_version() == 2 ) { 848: &Apache::lonnet::cleanenv(); 849: } 850: $r->internal_redirect('/adm/ambiguous'); 851: } 852: } 853: return OK; 854: } 855: 856: 1; 857: __END__