loncom/interface/lonfeedback.pm - view

File: [LON-CAPA] / loncom / interface / lonfeedback.pm
Revision 1.73.2.1: download - view: text, annotated - select for diffs
Wed Feb 18 20:33:49 2004 UTC (20 years, 3 months ago) by albertel
Branches: version_1_1_X
CVS tags: version_1_1_3, version_1_1_2
Diff to branchpoint 1.73: preferred, unified

- backport relevant portions of 1.76 and 1.77

1: # The LearningOnline Network 2: # Feedback 3: # 4: # $Id: lonfeedback.pm,v 1.73.2.1 2004/02/18 20:33:49 albertel 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: ### 29: 30: package Apache::lonfeedback; 31: 32: use strict; 33: use Apache::Constants qw(:common); 34: use Apache::lonmsg(); 35: use Apache::loncommon(); 36: use Apache::lontexconvert(); 37: use Apache::lonlocal; 38: 39: sub list_discussion { 40: my ($mode,$status,$symb)=@_; 41: my $discussiononly=0; 42: if ($mode eq 'board') { $discussiononly=1; } 43: unless ($ENV{'request.course.id'}) { return ''; } 44: my $crs='/'.$ENV{'request.course.id'}; 45: if ($ENV{'request.course.sec'}) { 46: $crs.='_'.$ENV{'request.course.sec'}; 47: } 48: $crs=~s/\_/\//g; 49: unless ($symb) { 50: $symb=&Apache::lonnet::symbread(); 51: } 52: unless ($symb) { return ''; } 53: my $seeid=&Apache::lonnet::allowed('rin',$crs); 54: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs) 55: && ($symb=~/\.(problem|exam|quiz|assess|survey|form)$/)); 56: my @discussionitems=(); 57: # backward compatability (bulltein boards used to be 'wrapped') 58: my $ressymb=$symb; 59: if ($mode eq 'board') { 60: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|; 61: } 62: my %contrib=&Apache::lonnet::restore($ressymb,$ENV{'request.course.id'}, 63: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 64: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 65: my $visible=0; 66: my @depth=(); 67: my @original=(); 68: my @index=(); 69: my @replies=(); 70: my %alldiscussion=(); 71: my $maxdepth=0; 72: 73: my $target=''; 74: unless ($ENV{'browser.interface'} eq 'textual' || 75: $ENV{'environment.remote'} eq 'off' ) { 76: $target='target="LONcom"'; 77: } 78: if ($contrib{'version'}) { 79: for (my $id=1;$id<=$contrib{'version'};$id++) { 80: my $idx=$id; 81: my $hidden=($contrib{'hidden'}=~/\.$idx\./); 82: my $deleted=($contrib{'deleted'}=~/\.$idx\./); 83: my $origindex='0.'; 84: if (($contrib{$idx.':replyto'}) && ($ENV{'environment.threadeddiscussion'})) { 85: # this is a follow-up message 86: $original[$idx]=$original[$contrib{$idx.':replyto'}]; 87: $depth[$idx]=$depth[$contrib{$idx.':replyto'}]+1; 88: $origindex=$index[$contrib{$idx.':replyto'}]; 89: if ($depth[$idx]>$maxdepth) { $maxdepth=$depth[$idx]; } 90: } else { 91: # this is an original message 92: $original[$idx]=0; 93: $depth[$idx]=0; 94: } 95: if ($replies[$depth[$idx]]) { 96: $replies[$depth[$idx]]++; 97: } else { 98: $replies[$depth[$idx]]=1; 99: } 100: unless ((($hidden) && (!$seeid)) || ($deleted)) { 101: $visible++; 102: my $message=$contrib{$idx.':message'}; 103: $message=~s/\n/\<br \/\>/g; 104: $message=&Apache::lontexconvert::msgtexconverted($message); 105: if ($contrib{$idx.':attachmenturl'}) { 106: my ($fname,$ft) 107: =($contrib{$idx.':attachmenturl'}=~/\/(\w+)\.(\w+)$/); 108: $message.='<p>'.&mt('Attachment').': <a href="'. 109: &Apache::lonnet::tokenwrapper( 110: $contrib{$idx.':attachmenturl'}). 111: '"><tt>'.$fname.'.'.$ft.'</tt></a></p>'; 112: } 113: if ($message) { 114: if ($hidden) { 115: $message='<font color="#888888">'.$message.'</font>'; 116: } 117: my $screenname=&Apache::loncommon::screenname( 118: $contrib{$idx.':sendername'}, 119: $contrib{$idx.':senderdomain'}); 120: my $plainname=&Apache::loncommon::nickname( 121: $contrib{$idx.':sendername'}, 122: $contrib{$idx.':senderdomain'}); 123: 124: my $sender=&mt('Anonymous'); 125: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) { 126: $sender=&Apache::loncommon::aboutmewrapper( 127: $plainname, 128: $contrib{$idx.':sendername'}, 129: $contrib{$idx.':senderdomain'}).' ('. 130: $contrib{$idx.':sendername'}.' at '. 131: $contrib{$idx.':senderdomain'}.')'; 132: if ($contrib{$idx.':anonymous'}) { 133: $sender.=' ['.&mt('anonymous').'] '. 134: $screenname; 135: } 136: if ($seeid) { 137: if ($hidden) { 138: $sender.=' <a href="/adm/feedback?unhide='. 139: $ressymb.':::'.$idx.'">'.&mt('Make Visible').'</a>'; 140: } else { 141: $sender.=' <a href="/adm/feedback?hide='. 142: $ressymb.':::'.$idx.'">'.&mt('Hide').'</a>'; 143: } 144: $sender.=' <a href="/adm/feedback?deldisc='. 145: $ressymb.':::'.$idx.'">'.&mt('Delete').'</a>'; 146: } 147: } else { 148: if ($screenname) { 149: $sender='<i>'.$screenname.'</i>'; 150: } 151: } 152: if (&Apache::lonnet::allowed('pch', 153: $ENV{'request.course.id'}. 154: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 155: $sender.=' <a href="/adm/feedback?replydisc='. 156: $ressymb.':::'.$idx.'" '.$target.'>'.&mt('Reply').'</a>'; 157: } 158: my $vgrlink; 159: if ($viewgrades) { 160: $vgrlink=&Apache::loncommon::submlink('Submissions', 161: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb); 162: } 163: #figure out at what position this needs to print 164: my $thisindex=$idx; 165: if ($ENV{'environment.threadeddiscussion'}) { 166: $thisindex=$origindex.substr('00'.$replies[$depth[$idx]],-2,2); 167: } 168: $alldiscussion{$thisindex}=$idx; 169: $index[$idx]=$thisindex; 170: $discussionitems[$idx]='<p><b>'.$sender.'</b> '.$vgrlink.' ('. 171: localtime($contrib{$idx.':timestamp'}). 172: '):<blockquote>'.$message. 173: '</blockquote></p>'; 174: } 175: } 176: } 177: } 178: my $discussion=''; 179: if ($visible) { 180: # Print a the discusssion 181: $discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">'; 182: if ($visible>2) { 183: my $colspan=$maxdepth+1; 184: $discussion.='<tr><td bgcolor="DDDDBB" colspan="'.$colspan.'">'. 185: '<a href="/adm/feedback?threadedon='.$symb.'">'.&mt('Threaded View').'</a>  '. 186: '<a href="/adm/feedback?threadedoff='.$symb.'">'.&mt('Chronological View').'</a>'. 187: '</td></tr>'; 188: } 189: 190: foreach (sort { $a <=> $b } keys %alldiscussion) { 191: $discussion.="\n<tr>"; 192: my $thisdepth=$depth[$alldiscussion{$_}]; 193: for (1..$thisdepth) { 194: $discussion.='<td>   </td>'; 195: } 196: my $colspan=$maxdepth-$thisdepth+1; 197: $discussion.="<td bgcolor='#CCCCCC' colspan='".$colspan."'>".$discussionitems[$alldiscussion{$_}]. 198: "</td></tr>"; 199: } 200: $discussion.='</table>'; 201: } 202: if ($discussiononly) { 203: $discussion.=(<<ENDDISCUSS); 204: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> 205: <input type="submit" name="discuss" value="Post Discussion" /> 206: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" /> 207: <input type="hidden" name="symb" value="$ressymb" /> 208: <input type="hidden" name="sendit" value="true" /> 209: <br /> 210: <font size="1">Note: in anonymous discussion, your name is visible only to 211: course faculty</font><br /> 212: <textarea name="comment" cols="60" rows="10" wrap="hard"></textarea> 213: <p> 214: Attachment (128 KB max size): <input type="file" name="attachment" /> 215: </p> 216: </form> 217: ENDDISCUSS 218: $discussion.=&generate_preview_button(); 219: } 220: return $discussion; 221: } 222: 223: sub mail_screen { 224: my ($r,$feedurl,$options) = @_; 225: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion', 226: '','onLoad="window.focus();"'); 227: my $title=&Apache::lonnet::gettitle($feedurl); 228: if (!$title) { $title = $feedurl; } 229: my $quote=''; 230: if ($ENV{'form.replydisc'}) { 231: my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'}); 232: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 233: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 234: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 235: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) { 236: my $message=$contrib{$idx.':message'}; 237: $message=~s/\n/\<br \/\>/g; 238: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>'; 239: } 240: } 241: my $latexHelp = Apache::loncommon::helpLatexCheatsheet(); 242: $r->print(<<ENDDOCUMENT); 243: <html> 244: <head> 245: <title>The LearningOnline Network with CAPA</title> 246: <meta http-equiv="pragma" content="no-cache"></meta> 247: <script type="text/javascript"> 248: // 289: </script> 290: </head> 291: $bodytag 292: <h2><tt>$title</tt></h2> 293: <form action="/adm/feedback" method="post" name="mailform" 294: enctype="multipart/form-data"> 295: <input type="hidden" name="postdata" value="$feedurl" /> 296: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" /> 297: Please check at least one of the following feedback types: 298: $options<hr /> 299: $quote 300: <p>My question/comment/feedback:</p> 301: <p> 302: $latexHelp 303: <textarea name="comment" cols="60" rows="10" wrap="hard"> 304: </textarea></p> 305: <p> 306: Attachment (128 KB max size): <input type="file" name="attachment" /> 307: </p> 308: <p> 309: <input type="hidden" name="sendit" value="1" /> 310: <input type="button" value="Send Feedback" onClick='gosubmit();' /> 311: </p> 312: </form> 313: ENDDOCUMENT 314: $r->print(&generate_preview_button().'</body></html>'); 315: } 316: 317: sub fail_redirect { 318: my ($r,$feedurl) = @_; 319: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' }; 320: $r->print (<<ENDFAILREDIR); 321: <html> 322: <head><title>Feedback not sent</title> 323: <meta http-equiv="pragma" content="no-cache" /> 324: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" /> 325: </head> 326: <body bgcolor="#FFFFFF"> 327: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 328: <b>Sorry, no recipients ...</b> 329: </body> 330: </html> 331: ENDFAILREDIR 332: } 333: 334: sub redirect_back { 335: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status) = @_; 336: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' }; 337: $r->print (<<ENDREDIR); 338: <html> 339: <head> 340: <title>Feedback sent</title> 341: <meta http-equiv="pragma" content="no-cache" /> 342: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl"> 343: </head> 344: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'> 345: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 346: $typestyle 347: <b>Sent $sendsomething message(s), and $sendposts post(s).</b> 348: <font color="red">$status</font> 349: <form name="reldt" action="$feedurl" target="loncapaclient"> 350: </form> 351: </body> 352: </html> 353: ENDREDIR 354: } 355: 356: sub no_redirect_back { 357: my ($r,$feedurl) = @_; 358: $r->print (<<ENDNOREDIR); 359: <html> 360: <head><title>Feedback not sent</title> 361: <meta http-equiv="pragma" content="no-cache" /> 362: ENDNOREDIR 363: 364: if ($feedurl!~/^\/adm\/feedback/) { 365: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">'); 366: } 367: 368: $r->print (<<ENDNOREDIRTWO); 369: </head> 370: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'> 371: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 372: <b>Sorry, no feedback possible on this resource ...</b> 373: </body> 374: </html> 375: ENDNOREDIRTWO 376: } 377: 378: sub screen_header { 379: my ($feedurl) = @_; 380: my $msgoptions=''; 381: my $discussoptions=''; 382: unless ($ENV{'form.replydisc'}) { 383: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) { 384: $msgoptions= 385: '<p><input type="checkbox" name="author" /> '. 386: &mt('Feedback to resource author').'</p>'; 387: } 388: if (&feedback_available(1)) { 389: $msgoptions.= 390: '<br /><input type="checkbox" name="question" /> '. 391: &mt('Question about resource content'); 392: } 393: if (&feedback_available(0,1)) { 394: $msgoptions.= 395: '<br /><input type="checkbox" name="course" /> '. 396: &mt('Question/Comment/Feedback about course content'); 397: } 398: if (&feedback_available(0,0,1)) { 399: $msgoptions.= 400: '<br /><input type="checkbox" name="policy" /> '. 401: &mt('Question/Comment/Feedback about course policy'); 402: } 403: } 404: if ($ENV{'request.course.id'}) { 405: if (&Apache::lonnet::allowed('pch', 406: $ENV{'request.course.id'}. 407: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 408: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" /> '. 409: &mt('Contribution to course discussion of resource'); 410: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '. 411: &mt('Anonymous contribution to course discussion of resource'). 412: ' <i>('.&mt('name only visible to course faculty').')</i>'; 413: } 414: } 415: if ($msgoptions) { $msgoptions='<h2>'.&mt('Sending Messages').'</h2>'.$msgoptions; } 416: if ($discussoptions) { 417: $discussoptions='<h2>'.&mt('Discussion Contributions').'</h2>'.$discussoptions; } 418: return $msgoptions.$discussoptions; 419: } 420: 421: sub resource_output { 422: my ($feedurl) = @_; 423: my $usersaw=&Apache::lonnet::ssi_body($feedurl); 424: $usersaw=~s/\<body[^\>]*\>//gi; 425: $usersaw=~s/\<\/body\>//gi; 426: $usersaw=~s/\<html\>//gi; 427: $usersaw=~s/\<\/html\>//gi; 428: $usersaw=~s/\<head\>//gi; 429: $usersaw=~s/\<\/head\>//gi; 430: $usersaw=~s/action\s*\=/would_be_action\=/gi; 431: return $usersaw; 432: } 433: 434: sub clear_out_html { 435: my ($message,$override)=@_; 436: my $cid=$ENV{'request.course.id'}; 437: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) || 438: ($override)) { 439: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG> 440: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> 441: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1, 442: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1, 443: M=>1); 444: 445: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/ 446: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge; 447: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/ 448: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge; 449: } else { 450: $message=~s/\</\&lt\;/g; 451: $message=~s/\>/\&gt\;/g; 452: } 453: return $message; 454: } 455: 456: sub assemble_email { 457: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_; 458: my $email=<<"ENDEMAIL"; 459: Refers to <a href="$feedurl">$feedurl</a> 460: 461: $message 462: ENDEMAIL 463: my $citations=<<"ENDCITE"; 464: <h2>Previous attempts of student (if applicable)</h2> 465: $prevattempts 466: <br /><hr /> 467: <h2>Original screen output (if applicable)</h2> 468: $usersaw 469: <h2>Correct Answer(s) (if applicable)</h2> 470: $useranswer 471: ENDCITE 472: return ($email,$citations); 473: } 474: 475: sub secapply { 476: my $rec=shift; 477: my $defaultflag=shift; 478: $rec=~s/\s+//g; 479: $rec=~s/\@/\:/g; 480: my ($adr,$sections)=($rec=~/^([^$]+)\(([^$]+)\)/); 481: if ($sections) { 482: foreach (split(/\;/,$sections)) { 483: if (($_ eq $ENV{'request.course.sec'}) || 484: ($defaultflag && ($_ eq '*'))) { 485: return $adr; 486: } 487: } 488: } else { 489: return $rec; 490: } 491: return ''; 492: } 493: 494: sub decide_receiver { 495: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_; 496: my $typestyle=''; 497: my %to=(); 498: if ($ENV{'form.author'}||$author) { 499: $typestyle.='Submitting as Author Feedback<br>'; 500: $feedurl=~/^\/res\/(\w+)\/(\w+)\//; 501: $to{$2.':'.$1}=1; 502: } 503: if ($ENV{'form.question'}||$question) { 504: $typestyle.='Submitting as Question<br>'; 505: foreach (split(/\,/, 506: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) 507: ) { 508: my $rec=&secapply($_,$defaultflag); 509: if ($rec) { $to{$rec}=1; } 510: } 511: } 512: if ($ENV{'form.course'}||$course) { 513: $typestyle.='Submitting as Comment<br />'; 514: foreach (split(/\,/, 515: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) 516: ) { 517: my $rec=&secapply($_,$defaultflag); 518: if ($rec) { $to{$rec}=1; } 519: } 520: } 521: if ($ENV{'form.policy'}||$policy) { 522: $typestyle.='Submitting as Policy Feedback<br />'; 523: foreach (split(/\,/, 524: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) 525: ) { 526: my $rec=&secapply($_,$defaultflag); 527: if ($rec) { $to{$rec}=1; } 528: } 529: } 530: if ((scalar(%to) eq '0') && (!$defaultflag)) { 531: ($typestyle,%to)= 532: &decide_receiver($feedurl,$author,$question,$course,$policy,1); 533: } 534: return ($typestyle,%to); 535: } 536: 537: sub feedback_available { 538: my ($question,$course,$policy)=@_; 539: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy); 540: return scalar(%to); 541: } 542: 543: sub send_msg { 544: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_; 545: my $status=''; 546: my $sendsomething=0; 547: foreach (keys %to) { 548: if ($_) { 549: my $declutter=&Apache::lonnet::declutter($feedurl); 550: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_), 551: 'Feedback ['.$declutter.']',$email,$citations,$feedurl, 552: $attachmenturl)=~/ok/) { 553: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />'; 554: } else { 555: $sendsomething++; 556: } 557: } 558: } 559: 560: my %record=&Apache::lonnet::restore('_feedback'); 561: my ($temp)=keys %record; 562: unless ($temp=~/^error\:/) { 563: my %newrecord=(); 564: $newrecord{'resource'}=$feedurl; 565: $newrecord{'subnumber'}=$record{'subnumber'}+1; 566: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') { 567: $status.='<br />'.&mt('Not registered').'<br />'; 568: } 569: } 570: 571: return ($status,$sendsomething); 572: } 573: 574: sub adddiscuss { 575: my ($symb,$email,$anon,$attachmenturl)=@_; 576: my $status=''; 577: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}. 578: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 579: 580: my %contrib=('message' => $email, 581: 'sendername' => $ENV{'user.name'}, 582: 'senderdomain' => $ENV{'user.domain'}, 583: 'screenname' => $ENV{'environment.screenname'}, 584: 'plainname' => $ENV{'environment.firstname'}.' '. 585: $ENV{'environment.middlename'}.' '. 586: $ENV{'environment.lastname'}.' '. 587: $ENV{'enrironment.generation'}, 588: 'attachmenturl'=> $attachmenturl); 589: if ($ENV{'form.replydisc'}) { 590: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1]; 591: } 592: if ($anon) { 593: $contrib{'anonymous'}='true'; 594: } 595: if (($symb) && ($email)) { 596: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '. 597: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'}, 598: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 599: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 600: my %storenewentry=($symb => time); 601: $status.='<br />'.&mt('Updating discussion time').': '. 602: &Apache::lonnet::put('discussiontimes',\%storenewentry, 603: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 604: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 605: } 606: my %record=&Apache::lonnet::restore('_discussion'); 607: my ($temp)=keys %record; 608: unless ($temp=~/^error\:/) { 609: my %newrecord=(); 610: $newrecord{'resource'}=$symb; 611: $newrecord{'subnumber'}=$record{'subnumber'}+1; 612: $status.='<br />'.&mt('Registering').': '. 613: &Apache::lonnet::cstore(\%newrecord,'_discussion'); 614: } 615: } else { 616: $status.='Failed.'; 617: } 618: return $status.'<br />'; 619: } 620: 621: # ----------------------------------------------------------- Preview function 622: 623: sub show_preview { 624: my $r=shift; 625: my $message=&clear_out_html($ENV{'form.comment'}); 626: $message=~s/\n/\<br \/\>/g; 627: $message=&Apache::lontexconvert::msgtexconverted($message); 628: $r->print('<table border="2"><tr><td>'. 629: $message.'</td></tr></table>'); 630: } 631: 632: sub generate_preview_button { 633: my $pre=&mt("Show Preview"); 634: return(<<ENDPREVIEW); 635: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview"> 636: <input type="hidden" name="comment" /> 637: <input type="button" value="$pre" 638: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" /> 639: </form> 640: ENDPREVIEW 641: } 642: 643: sub handler { 644: my $r = shift; 645: if ($r->header_only) { 646: &Apache::loncommon::content_type($r,'text/html'); 647: $r->send_http_header; 648: return OK; 649: } 650: 651: # --------------------------- Get query string for limited number of parameters 652: 653: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 654: ['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff']); 655: 656: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) { 657: # ----------------------------------------------------------------- Hide/unhide 658: &Apache::loncommon::content_type($r,'text/html'); 659: $r->send_http_header; 660: 661: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'}; 662: 663: my ($symb,$idx)=split(/\:\:\:/,$entry); 664: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 665: 666: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 667: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 668: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 669: 670: 671: my $currenthidden=$contrib{'hidden'}; 672: 673: if ($ENV{'form.hide'}) { 674: $currenthidden.='.'.$idx.'.'; 675: } else { 676: $currenthidden=~s/\.$idx\.//g; 677: } 678: my %newhash=('hidden' => $currenthidden); 679: 680: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 681: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 682: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 683: 684: &redirect_back($r,&Apache::lonnet::clutter($url), 685: &mt('Changed discussion status').'<br />','0','0'); 686: } elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) { 687: &Apache::loncommon::content_type($r,'text/html'); 688: $r->send_http_header; 689: if ($ENV{'form.threadedon'}) { 690: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'}); 691: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on'); 692: } else { 693: &Apache::lonnet::del('environment',['threadeddiscussion']); 694: &Apache::lonnet::delenv('environment\.threadeddiscussion'); 695: } 696: my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'}; 697: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 698: &redirect_back($r,&Apache::lonnet::clutter($url), 699: &mt('Changed discussion view mode').'<br />','0','0'); 700: } elsif ($ENV{'form.deldisc'}) { 701: # --------------------------------------------------------------- Hide for good 702: &Apache::loncommon::content_type($r,'text/html'); 703: $r->send_http_header; 704: 705: my $entry=$ENV{'form.deldisc'}; 706: 707: my ($symb,$idx)=split(/\:\:\:/,$entry); 708: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 709: 710: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 711: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 712: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 713: 714: 715: my $currentdeleted=$contrib{'deleted'}; 716: 717: $currentdeleted.='.'.$idx.'.'; 718: 719: my %newhash=('deleted' => $currentdeleted); 720: 721: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 722: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 723: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 724: 725: &redirect_back($r,&Apache::lonnet::clutter($url), 726: &mt('Changed discussion status').'<br />','0','0'); 727: } elsif ($ENV{'form.preview'}) { 728: # -------------------------------------------------------- User wants a preview 729: $r->content_type('text/html'); 730: $r->send_http_header; 731: &show_preview($r); 732: } else { 733: # ------------------------------------------------------------- Normal feedback 734: my $feedurl=$ENV{'form.postdata'}; 735: $feedurl=~s/^http\:\/\///; 736: $feedurl=~s/^$ENV{'SERVER_NAME'}//; 737: $feedurl=~s/^$ENV{'HTTP_HOST'}//; 738: $feedurl=~s/\?.+$//; 739: 740: my $symb; 741: if ($ENV{'form.replydisc'}) { 742: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0]; 743: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 744: $feedurl=&Apache::lonnet::clutter($url); 745: } else { 746: $symb=&Apache::lonnet::symbread($feedurl); 747: } 748: unless ($symb) { 749: $symb=$ENV{'form.symb'}; 750: if ($symb) { 751: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 752: $feedurl=&Apache::lonnet::clutter($url); 753: } 754: } 755: my $goahead=1; 756: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) { 757: unless ($symb) { $goahead=0; } 758: } 759: # backward compatability (bulltein boards used to be 'wrapped') 760: if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) { 761: $feedurl=~s|^/adm/wrapper||; 762: } 763: if ($goahead) { 764: # Go ahead with feedback, no ambiguous reference 765: &Apache::loncommon::content_type($r,'text/html'); 766: $r->send_http_header; 767: 768: if ( 769: ( 770: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:) 771: ) 772: || 773: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:)) 774: || 775: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/)) 776: ) { 777: # --------------------------------------------------- Print login screen header 778: unless ($ENV{'form.sendit'}) { 779: my $options=&screen_header($feedurl); 780: if ($options) { 781: &mail_screen($r,$feedurl,$options); 782: } else { 783: &fail_redirect($r,$feedurl); 784: } 785: } else { 786: 787: # Get previous user input 788: my $prevattempts=&Apache::loncommon::get_previous_attempt( 789: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 790: $ENV{'request.course.id'}); 791: 792: # Get output from resource 793: my $usersaw=&resource_output($feedurl); 794: 795: # Get resource answer (need to allow student to view grades for this to work) 796: &Apache::lonnet::appenv(('allowed.vgr'=>'F')); 797: my $useranswer=&Apache::loncommon::get_student_answers( 798: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 799: $ENV{'request.course.id'}); 800: &Apache::lonnet::delenv('allowed.vgr'); 801: # Get attachments, if any, and not too large 802: my $attachmenturl=''; 803: if ($ENV{'form.attachment.filename'}) { 804: unless (length($ENV{'form.attachment'})>131072) { 805: $attachmenturl=&Apache::lonnet::userfileupload('attachment'); 806: } 807: } 808: # Filter HTML out of message (could be nasty) 809: my $message=&clear_out_html($ENV{'form.comment'}); 810: 811: # Assemble email 812: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts, 813: $usersaw,$useranswer); 814: 815: # Who gets this? 816: my ($typestyle,%to) = &decide_receiver($feedurl); 817: 818: # Actually send mail 819: my ($status,$numsent)=&send_msg($feedurl,$email,$citations, 820: $attachmenturl,%to); 821: 822: # Discussion? Store that. 823: 824: my $numpost=0; 825: if ($ENV{'form.discuss'}) { 826: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl); 827: $numpost++; 828: } 829: 830: if ($ENV{'form.anondiscuss'}) { 831: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl); 832: $numpost++; 833: } 834: 835: 836: # Receipt screen and redirect back to where came from 837: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status); 838: 839: } 840: } else { 841: # Unable to give feedback 842: &no_redirect_back($r,$feedurl); 843: } 844: } else { 845: # Ambiguous Problem Resource 846: if ( &Apache::lonnet::mod_perl_version() == 2 ) { 847: &Apache::lonnet::cleanenv(); 848: } 849: $r->internal_redirect('/adm/ambiguous'); 850: } 851: } 852: return OK; 853: } 854: 855: 1; 856: __END__