loncom/interface/lonfeedback.pm - view

File: [LON-CAPA] / loncom / interface / lonfeedback.pm
Revision 1.73: download - view: text, annotated - select for diffs
Thu Nov 27 09:43:42 2003 UTC (20 years, 6 months ago) by albertel
Branches: MAIN
CVS tags: version_1_1_X, version_1_1_1, version_1_1_0, version_1_0_99_3, version_1_0_99_2, version_1_0_99_1, HEAD

- Part of BUG#2416, make the new bulletin boards backward compatabile with the old ones

1: # The LearningOnline Network 2: # Feedback 3: # 4: # $Id: lonfeedback.pm,v 1.73 2003/11/27 09:43:42 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: # (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 compatability (bulltein 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: } 236: return $discussion; 237: } 238: 239: sub mail_screen { 240: my ($r,$feedurl,$options) = @_; 241: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion', 242: '','onLoad="window.focus();"'); 243: my $title=&Apache::lonnet::gettitle($feedurl); 244: if (!$title) { $title = $feedurl; } 245: my $quote=''; 246: if ($ENV{'form.replydisc'}) { 247: my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'}); 248: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 249: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 250: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 251: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) { 252: my $message=$contrib{$idx.':message'}; 253: $message=~s/\n/\<br \/\>/g; 254: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>'; 255: } 256: } 257: my $latexHelp = Apache::loncommon::helpLatexCheatsheet(); 258: $r->print(<<ENDDOCUMENT); 259: <html> 260: <head> 261: <title>The LearningOnline Network with CAPA</title> 262: <meta http-equiv="pragma" content="no-cache"></meta> 263: <script type="text/javascript"> 264: // 305: </script> 306: </head> 307: $bodytag 308: <h2><tt>$title</tt></h2> 309: <form action="/adm/feedback" method="post" name="mailform" 310: enctype="multipart/form-data"> 311: <input type="hidden" name="postdata" value="$feedurl" /> 312: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" /> 313: Please check at least one of the following feedback types: 314: $options<hr /> 315: $quote 316: <p>My question/comment/feedback:</p> 317: <p> 318: $latexHelp 319: <textarea name="comment" cols="60" rows="10" wrap="hard"> 320: </textarea></p> 321: <p> 322: Attachment (128 KB max size): <input type="file" name="attachment" /> 323: </p> 324: <p> 325: <input type="hidden" name="sendit" value="1" /> 326: <input type="button" value="Send Feedback" onClick='gosubmit();' /> 327: </p> 328: </form> 329: ENDDOCUMENT 330: $r->print(&generate_preview_button().'</body></html>'); 331: } 332: 333: sub fail_redirect { 334: my ($r,$feedurl) = @_; 335: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' }; 336: $r->print (<<ENDFAILREDIR); 337: <html> 338: <head><title>Feedback not sent</title> 339: <meta http-equiv="pragma" content="no-cache" /> 340: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" /> 341: </head> 342: <body bgcolor="#FFFFFF"> 343: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 344: <b>Sorry, no recipients ...</b> 345: </body> 346: </html> 347: ENDFAILREDIR 348: } 349: 350: sub redirect_back { 351: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status) = @_; 352: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' }; 353: $r->print (<<ENDREDIR); 354: <html> 355: <head> 356: <title>Feedback sent</title> 357: <meta http-equiv="pragma" content="no-cache" /> 358: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl"> 359: </head> 360: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'> 361: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 362: $typestyle 363: <b>Sent $sendsomething message(s), and $sendposts post(s).</b> 364: <font color="red">$status</font> 365: <form name="reldt" action="$feedurl" target="loncapaclient"> 366: </form> 367: </body> 368: </html> 369: ENDREDIR 370: } 371: 372: sub no_redirect_back { 373: my ($r,$feedurl) = @_; 374: $r->print (<<ENDNOREDIR); 375: <html> 376: <head><title>Feedback not sent</title> 377: <meta http-equiv="pragma" content="no-cache" /> 378: ENDNOREDIR 379: 380: if ($feedurl!~/^\/adm\/feedback/) { 381: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">'); 382: } 383: 384: $r->print (<<ENDNOREDIRTWO); 385: </head> 386: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'> 387: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 388: <b>Sorry, no feedback possible on this resource ...</b> 389: </body> 390: </html> 391: ENDNOREDIRTWO 392: } 393: 394: sub screen_header { 395: my ($feedurl) = @_; 396: my $msgoptions=''; 397: my $discussoptions=''; 398: unless ($ENV{'form.replydisc'}) { 399: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) { 400: $msgoptions= 401: '<p><input type="checkbox" name="author" /> '. 402: &mt('Feedback to resource author').'</p>'; 403: } 404: if (&feedback_available(1)) { 405: $msgoptions.= 406: '<br /><input type="checkbox" name="question" /> '. 407: &mt('Question about resource content'); 408: } 409: if (&feedback_available(0,1)) { 410: $msgoptions.= 411: '<br /><input type="checkbox" name="course" /> '. 412: &mt('Question/Comment/Feedback about course content'); 413: } 414: if (&feedback_available(0,0,1)) { 415: $msgoptions.= 416: '<br /><input type="checkbox" name="policy" /> '. 417: &mt('Question/Comment/Feedback about course policy'); 418: } 419: } 420: if ($ENV{'request.course.id'}) { 421: if (&Apache::lonnet::allowed('pch', 422: $ENV{'request.course.id'}. 423: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 424: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" /> '. 425: &mt('Contribution to course discussion of resource'); 426: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '. 427: &mt('Anonymous contribution to course discussion of resource'). 428: ' <i>('.&mt('name only visible to course faculty').')</i>'; 429: } 430: } 431: if ($msgoptions) { $msgoptions='<h2>'.&mt('Sending Messages').'</h2>'.$msgoptions; } 432: if ($discussoptions) { 433: $discussoptions='<h2>'.&mt('Discussion Contributions').'</h2>'.$discussoptions; } 434: return $msgoptions.$discussoptions; 435: } 436: 437: sub resource_output { 438: my ($feedurl) = @_; 439: my $usersaw=&Apache::lonnet::ssi_body($feedurl); 440: $usersaw=~s/\<body[^\>]*\>//gi; 441: $usersaw=~s/\<\/body\>//gi; 442: $usersaw=~s/\<html\>//gi; 443: $usersaw=~s/\<\/html\>//gi; 444: $usersaw=~s/\<head\>//gi; 445: $usersaw=~s/\<\/head\>//gi; 446: $usersaw=~s/action\s*\=/would_be_action\=/gi; 447: return $usersaw; 448: } 449: 450: sub clear_out_html { 451: my ($message,$override)=@_; 452: my $cid=$ENV{'request.course.id'}; 453: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) || 454: ($override)) { 455: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG> 456: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> 457: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1, 458: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1, 459: M=>1); 460: 461: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/ 462: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge; 463: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/ 464: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge; 465: } else { 466: $message=~s/\</\&lt\;/g; 467: $message=~s/\>/\&gt\;/g; 468: } 469: return $message; 470: } 471: 472: sub assemble_email { 473: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_; 474: my $email=<<"ENDEMAIL"; 475: Refers to <a href="$feedurl">$feedurl</a> 476: 477: $message 478: ENDEMAIL 479: my $citations=<<"ENDCITE"; 480: <h2>Previous attempts of student (if applicable)</h2> 481: $prevattempts 482: <br /><hr /> 483: <h2>Original screen output (if applicable)</h2> 484: $usersaw 485: <h2>Correct Answer(s) (if applicable)</h2> 486: $useranswer 487: ENDCITE 488: return ($email,$citations); 489: } 490: 491: sub secapply { 492: my $rec=shift; 493: my $defaultflag=shift; 494: $rec=~s/\s+//g; 495: $rec=~s/\@/\:/g; 496: my ($adr,$sections)=($rec=~/^([^$]+)\(([^$]+)\)/); 497: if ($sections) { 498: foreach (split(/\;/,$sections)) { 499: if (($_ eq $ENV{'request.course.sec'}) || 500: ($defaultflag && ($_ eq '*'))) { 501: return $adr; 502: } 503: } 504: } else { 505: return $rec; 506: } 507: return ''; 508: } 509: 510: sub decide_receiver { 511: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_; 512: my $typestyle=''; 513: my %to=(); 514: if ($ENV{'form.author'}||$author) { 515: $typestyle.='Submitting as Author Feedback<br>'; 516: $feedurl=~/^\/res\/(\w+)\/(\w+)\//; 517: $to{$2.':'.$1}=1; 518: } 519: if ($ENV{'form.question'}||$question) { 520: $typestyle.='Submitting as Question<br>'; 521: foreach (split(/\,/, 522: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) 523: ) { 524: my $rec=&secapply($_,$defaultflag); 525: if ($rec) { $to{$rec}=1; } 526: } 527: } 528: if ($ENV{'form.course'}||$course) { 529: $typestyle.='Submitting as Comment<br />'; 530: foreach (split(/\,/, 531: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) 532: ) { 533: my $rec=&secapply($_,$defaultflag); 534: if ($rec) { $to{$rec}=1; } 535: } 536: } 537: if ($ENV{'form.policy'}||$policy) { 538: $typestyle.='Submitting as Policy Feedback<br />'; 539: foreach (split(/\,/, 540: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) 541: ) { 542: my $rec=&secapply($_,$defaultflag); 543: if ($rec) { $to{$rec}=1; } 544: } 545: } 546: if ((scalar(%to) eq '0') && (!$defaultflag)) { 547: ($typestyle,%to)= 548: &decide_receiver($feedurl,$author,$question,$course,$policy,1); 549: } 550: return ($typestyle,%to); 551: } 552: 553: sub feedback_available { 554: my ($question,$course,$policy)=@_; 555: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy); 556: return scalar(%to); 557: } 558: 559: sub send_msg { 560: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_; 561: my $status=''; 562: my $sendsomething=0; 563: foreach (keys %to) { 564: if ($_) { 565: my $declutter=&Apache::lonnet::declutter($feedurl); 566: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_), 567: 'Feedback ['.$declutter.']',$email,$citations,$feedurl, 568: $attachmenturl)=~/ok/) { 569: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />'; 570: } else { 571: $sendsomething++; 572: } 573: } 574: } 575: 576: my %record=&Apache::lonnet::restore('_feedback'); 577: my ($temp)=keys %record; 578: unless ($temp=~/^error\:/) { 579: my %newrecord=(); 580: $newrecord{'resource'}=$feedurl; 581: $newrecord{'subnumber'}=$record{'subnumber'}+1; 582: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') { 583: $status.='<br />'.&mt('Not registered').'<br />'; 584: } 585: } 586: 587: return ($status,$sendsomething); 588: } 589: 590: sub adddiscuss { 591: my ($symb,$email,$anon,$attachmenturl)=@_; 592: my $status=''; 593: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}. 594: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 595: 596: my %contrib=('message' => $email, 597: 'sendername' => $ENV{'user.name'}, 598: 'senderdomain' => $ENV{'user.domain'}, 599: 'screenname' => $ENV{'environment.screenname'}, 600: 'plainname' => $ENV{'environment.firstname'}.' '. 601: $ENV{'environment.middlename'}.' '. 602: $ENV{'environment.lastname'}.' '. 603: $ENV{'enrironment.generation'}, 604: 'attachmenturl'=> $attachmenturl); 605: if ($ENV{'form.replydisc'}) { 606: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1]; 607: } 608: if ($anon) { 609: $contrib{'anonymous'}='true'; 610: } 611: if (($symb) && ($email)) { 612: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '. 613: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'}, 614: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 615: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 616: my %storenewentry=($symb => time); 617: $status.='<br />'.&mt('Updating discussion time').': '. 618: &Apache::lonnet::put('discussiontimes',\%storenewentry, 619: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 620: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 621: } 622: my %record=&Apache::lonnet::restore('_discussion'); 623: my ($temp)=keys %record; 624: unless ($temp=~/^error\:/) { 625: my %newrecord=(); 626: $newrecord{'resource'}=$symb; 627: $newrecord{'subnumber'}=$record{'subnumber'}+1; 628: $status.='<br />'.&mt('Registering').': '. 629: &Apache::lonnet::cstore(\%newrecord,'_discussion'); 630: } 631: } else { 632: $status.='Failed.'; 633: } 634: return $status.'<br />'; 635: } 636: 637: # ----------------------------------------------------------- Preview function 638: 639: sub show_preview { 640: my $r=shift; 641: my $message=&clear_out_html($ENV{'form.comment'}); 642: $message=~s/\n/\<br \/\>/g; 643: $message=&Apache::lontexconvert::msgtexconverted($message); 644: $r->print('<table border="2"><tr><td>'. 645: $message.'</td></tr></table>'); 646: } 647: 648: sub generate_preview_button { 649: my $pre=&mt("Show Preview"); 650: return(<<ENDPREVIEW); 651: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview"> 652: <input type="hidden" name="comment" /> 653: <input type="button" value="$pre" 654: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" /> 655: </form> 656: ENDPREVIEW 657: } 658: 659: sub handler { 660: my $r = shift; 661: if ($r->header_only) { 662: &Apache::loncommon::content_type($r,'text/html'); 663: $r->send_http_header; 664: return OK; 665: } 666: 667: # --------------------------- Get query string for limited number of parameters 668: 669: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 670: ['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff']); 671: 672: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) { 673: # ----------------------------------------------------------------- Hide/unhide 674: &Apache::loncommon::content_type($r,'text/html'); 675: $r->send_http_header; 676: 677: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'}; 678: 679: my ($symb,$idx)=split(/\:\:\:/,$entry); 680: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 681: 682: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 683: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 684: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 685: 686: 687: my $currenthidden=$contrib{'hidden'}; 688: 689: if ($ENV{'form.hide'}) { 690: $currenthidden.='.'.$idx.'.'; 691: } else { 692: $currenthidden=~s/\.$idx\.//g; 693: } 694: my %newhash=('hidden' => $currenthidden); 695: 696: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 697: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 698: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 699: 700: &redirect_back($r,&Apache::lonnet::clutter($url), 701: &mt('Changed discussion status').'<br />','0','0'); 702: } elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) { 703: &Apache::loncommon::content_type($r,'text/html'); 704: $r->send_http_header; 705: if ($ENV{'form.threadedon'}) { 706: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'}); 707: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on'); 708: } else { 709: &Apache::lonnet::del('environment',['threadeddiscussion']); 710: &Apache::lonnet::delenv('environment\.threadeddiscussion'); 711: } 712: my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'}; 713: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 714: &redirect_back($r,&Apache::lonnet::clutter($url), 715: &mt('Changed discussion view mode').'<br />','0','0'); 716: } elsif ($ENV{'form.deldisc'}) { 717: # --------------------------------------------------------------- Hide for good 718: &Apache::loncommon::content_type($r,'text/html'); 719: $r->send_http_header; 720: 721: my $entry=$ENV{'form.deldisc'}; 722: 723: my ($symb,$idx)=split(/\:\:\:/,$entry); 724: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 725: 726: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 727: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 728: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 729: 730: 731: my $currentdeleted=$contrib{'deleted'}; 732: 733: $currentdeleted.='.'.$idx.'.'; 734: 735: my %newhash=('deleted' => $currentdeleted); 736: 737: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 738: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 739: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 740: 741: &redirect_back($r,&Apache::lonnet::clutter($url), 742: &mt('Changed discussion status').'<br />','0','0'); 743: } elsif ($ENV{'form.preview'}) { 744: # -------------------------------------------------------- User wants a preview 745: &show_preview($r); 746: } else { 747: # ------------------------------------------------------------- Normal feedback 748: my $feedurl=$ENV{'form.postdata'}; 749: $feedurl=~s/^http\:\/\///; 750: $feedurl=~s/^$ENV{'SERVER_NAME'}//; 751: $feedurl=~s/^$ENV{'HTTP_HOST'}//; 752: $feedurl=~s/\?.+$//; 753: 754: my $symb; 755: if ($ENV{'form.replydisc'}) { 756: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0]; 757: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 758: $feedurl=&Apache::lonnet::clutter($url); 759: } else { 760: $symb=&Apache::lonnet::symbread($feedurl); 761: } 762: unless ($symb) { 763: $symb=$ENV{'form.symb'}; 764: if ($symb) { 765: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 766: $feedurl=&Apache::lonnet::clutter($url); 767: } 768: } 769: my $goahead=1; 770: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) { 771: unless ($symb) { $goahead=0; } 772: } 773: # backward compatability (bulltein boards used to be 'wrapped') 774: if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) { 775: $feedurl=~s|^/adm/wrapper||; 776: } 777: if ($goahead) { 778: # Go ahead with feedback, no ambiguous reference 779: &Apache::loncommon::content_type($r,'text/html'); 780: $r->send_http_header; 781: 782: if ( 783: ( 784: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:) 785: ) 786: || 787: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:)) 788: || 789: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/)) 790: ) { 791: # --------------------------------------------------- Print login screen header 792: unless ($ENV{'form.sendit'}) { 793: my $options=&screen_header($feedurl); 794: if ($options) { 795: &mail_screen($r,$feedurl,$options); 796: } else { 797: &fail_redirect($r,$feedurl); 798: } 799: } else { 800: 801: # Get previous user input 802: my $prevattempts=&Apache::loncommon::get_previous_attempt( 803: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 804: $ENV{'request.course.id'}); 805: 806: # Get output from resource 807: my $usersaw=&resource_output($feedurl); 808: 809: # Get resource answer (need to allow student to view grades for this to work) 810: &Apache::lonnet::appenv(('allowed.vgr'=>'F')); 811: my $useranswer=&Apache::loncommon::get_student_answers( 812: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 813: $ENV{'request.course.id'}); 814: &Apache::lonnet::delenv('allowed.vgr'); 815: # Get attachments, if any, and not too large 816: my $attachmenturl=''; 817: if ($ENV{'form.attachment.filename'}) { 818: unless (length($ENV{'form.attachment'})>131072) { 819: $attachmenturl=&Apache::lonnet::userfileupload('attachment'); 820: } 821: } 822: # Filter HTML out of message (could be nasty) 823: my $message=&clear_out_html($ENV{'form.comment'}); 824: 825: # Assemble email 826: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts, 827: $usersaw,$useranswer); 828: 829: # Who gets this? 830: my ($typestyle,%to) = &decide_receiver($feedurl); 831: 832: # Actually send mail 833: my ($status,$numsent)=&send_msg($feedurl,$email,$citations, 834: $attachmenturl,%to); 835: 836: # Discussion? Store that. 837: 838: my $numpost=0; 839: if ($ENV{'form.discuss'}) { 840: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl); 841: $numpost++; 842: } 843: 844: if ($ENV{'form.anondiscuss'}) { 845: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl); 846: $numpost++; 847: } 848: 849: 850: # Receipt screen and redirect back to where came from 851: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status); 852: 853: } 854: } else { 855: # Unable to give feedback 856: &no_redirect_back($r,$feedurl); 857: } 858: } else { 859: # Ambiguous Problem Resource 860: if ( &Apache::lonnet::mod_perl_version() == 2 ) { 861: &Apache::lonnet::cleanenv(); 862: } 863: $r->internal_redirect('/adm/ambiguous'); 864: } 865: } 866: return OK; 867: } 868: 869: 1; 870: __END__