loncom/interface/lonfeedback.pm - view

File: [LON-CAPA] / loncom / interface / lonfeedback.pm
Revision 1.68: download - view: text, annotated - select for diffs
Fri Nov 7 16:37:23 2003 UTC (20 years, 6 months ago) by www
Branches: MAIN
CVS tags: HEAD

Saving my work on threaded discussions.

1: # The LearningOnline Network 2: # Feedback 3: # 4: # $Id: lonfeedback.pm,v 1.68 2003/11/07 16:37:23 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 $maxdepth=0; 83: 84: if ($contrib{'version'}) { 85: for (my $id=1;$id<=$contrib{'version'};$id++) { 86: my $idx=$id; 87: my $hidden=($contrib{'hidden'}=~/\.$idx\./); 88: my $deleted=($contrib{'deleted'}=~/\.$idx\./); 89: my $origindex='0.'; 90: if ($contrib{$idx.':replyto'}) { 91: # this is a follow-up message 92: $original[$idx]=$original[$contrib{$idx.':replyto'}]; 93: $depth[$idx]=$depth[$contrib{$idx.':replyto'}]+1; 94: $origindex=$index[$contrib{$idx.':replyto'}]; 95: if ($depth[$idx]>$maxdepth) { $maxdepth=$depth[$idx]; } 96: } else { 97: # this is an original message 98: $original[$idx]=0; 99: $depth[$idx]=0; 100: } 101: if ($replies[$depth[$idx]]) { 102: $replies[$depth[$idx]]++; 103: } else { 104: $replies[$depth[$idx]]=1; 105: } 106: unless ((($hidden) && (!$seeid)) || ($deleted)) { 107: $visible++; 108: my $message=$contrib{$idx.':message'}; 109: $message=~s/\n/\<br \/\>/g; 110: $message=&Apache::lontexconvert::msgtexconverted($message); 111: if ($contrib{$idx.':attachmenturl'}) { 112: my ($fname,$ft) 113: =($contrib{$idx.':attachmenturl'}=~/\/(\w+)\.(\w+)$/); 114: $message.='<p>'.&mt('Attachment').': <a href="'. 115: &Apache::lonnet::tokenwrapper( 116: $contrib{$idx.':attachmenturl'}). 117: '"><tt>'.$fname.'.'.$ft.'</tt></a></p>'; 118: } 119: if ($message) { 120: if ($hidden) { 121: $message='<font color="#888888">'.$message.'</font>'; 122: } 123: my $screenname=&Apache::loncommon::screenname( 124: $contrib{$idx.':sendername'}, 125: $contrib{$idx.':senderdomain'}); 126: my $plainname=&Apache::loncommon::nickname( 127: $contrib{$idx.':sendername'}, 128: $contrib{$idx.':senderdomain'}); 129: 130: my $sender=&mt('Anonymous'); 131: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) { 132: $sender=&Apache::loncommon::aboutmewrapper( 133: $plainname, 134: $contrib{$idx.':sendername'}, 135: $contrib{$idx.':senderdomain'}).' ('. 136: $contrib{$idx.':sendername'}.' at '. 137: $contrib{$idx.':senderdomain'}.')'; 138: if ($contrib{$idx.':anonymous'}) { 139: $sender.=' ['.&mt('anonymous').'] '. 140: $screenname; 141: } 142: if ($seeid) { 143: if ($hidden) { 144: $sender.=' <a href="/adm/feedback?unhide='. 145: $symb.':::'.$idx.'">'.&mt('Make Visible').'</a>'; 146: } else { 147: $sender.=' <a href="/adm/feedback?hide='. 148: $symb.':::'.$idx.'">'.&mt('Hide').'</a>'; 149: } 150: $sender.=' <a href="/adm/feedback?deldisc='. 151: $symb.':::'.$idx.'">'.&mt('Delete').'</a>'; 152: } 153: if (&Apache::lonnet::allowed('pch', 154: $ENV{'request.course.id'}. 155: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 156: $sender.=' <a href="/adm/feedback?replydisc='. 157: $symb.':::'.$idx.'">'.&mt('Reply').'</a>'; 158: } 159: } else { 160: if ($screenname) { 161: $sender='<i>'.$screenname.'</i>'; 162: } 163: } 164: my $vgrlink; 165: if ($viewgrades) { 166: $vgrlink=&Apache::loncommon::submlink('Submissions', 167: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb); 168: } 169: #figure out at what position this needs to print 170: my $thisindex=$idx; 171: # if ($ENV{'request.discussions.threaded'}) { 172: if (1) { 173: $thisindex=$origindex.substr('00'.$replies[$depth[$idx]],-2,2); 174: } 175: $alldiscussion{$thisindex}=$idx; 176: $index[$idx]=$thisindex; 177: $discussionitems[$idx]='<p><b>'.$sender.'</b> '.$vgrlink.' ('. 178: localtime($contrib{$idx.':timestamp'}). 179: '):<blockquote>'.$message. 180: '</blockquote></p>'; 181: } 182: } 183: } 184: } 185: my $discussion=''; 186: if ($visible) { 187: $discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">'; 188: foreach (sort { $a <=> $b } keys %alldiscussion) { 189: $discussion.="\n<tr bgcolor='#CCCCCC'><td>".$discussionitems[$alldiscussion{$_}]. 190: "</td></tr>"; 191: } 192: $discussion.='</table>'; 193: } 194: if ($discussiononly) { 195: $discussion.=(<<ENDDISCUSS); 196: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> 197: <input type="submit" name="discuss" value="Post Discussion" /> 198: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" /> 199: <input type="hidden" name="symb" value="$symb" /> 200: <input type="hidden" name="sendit" value="true" /> 201: <br /> 202: <font size="1">Note: in anonymous discussion, your name is visible only to 203: course faculty</font><br /> 204: <textarea name="comment" cols="60" rows="10" wrap="hard"></textarea> 205: <p> 206: Attachment (128 KB max size): <input type="file" name="attachment" /> 207: </p> 208: </form> 209: ENDDISCUSS 210: $discussion.=&generate_preview_button(); 211: } 212: return $discussion; 213: } 214: 215: sub mail_screen { 216: my ($r,$feedurl,$options) = @_; 217: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion', 218: '','onLoad="window.focus();"'); 219: my $title=&Apache::lonnet::gettitle($feedurl); 220: if (!$title) { $title = $feedurl; } 221: my $latexHelp = Apache::loncommon::helpLatexCheatsheet(); 222: $r->print(<<ENDDOCUMENT); 223: <html> 224: <head> 225: <title>The LearningOnline Network with CAPA</title> 226: <meta http-equiv="pragma" content="no-cache"></meta> 227: <script type="text/javascript"> 228: // 269: </script> 270: </head> 271: $bodytag 272: <h2><tt>$title</tt></h2> 273: <form action="/adm/feedback" method="post" name="mailform" 274: enctype="multipart/form-data"> 275: <input type="hidden" name="postdata" value="$feedurl" /> 276: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" /> 277: Please check at least one of the following feedback types: 278: $options<hr /> 279: <p>My question/comment/feedback:</p> 280: <p> 281: $latexHelp 282: <textarea name="comment" cols="60" rows="10" wrap="hard"> 283: </textarea></p> 284: <p> 285: Attachment (128 KB max size): <input type="file" name="attachment" /> 286: </p> 287: <p> 288: <input type="hidden" name="sendit" value="1" /> 289: <input type="button" value="Send Feedback" onClick='gosubmit();' /> 290: </p> 291: </form> 292: ENDDOCUMENT 293: $r->print(&generate_preview_button().'</body></html>'); 294: } 295: 296: sub fail_redirect { 297: my ($r,$feedurl) = @_; 298: $r->print (<<ENDFAILREDIR); 299: <head><title>Feedback not sent</title> 300: <meta http-equiv="pragma" content="no-cache" /> 301: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" /> 302: </head> 303: <html> 304: <body bgcolor="#FFFFFF"> 305: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 306: <b>Sorry, no recipients ...</b> 307: </body> 308: </html> 309: ENDFAILREDIR 310: } 311: 312: sub redirect_back { 313: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status) = @_; 314: $r->print (<<ENDREDIR); 315: <head> 316: <title>Feedback sent</title> 317: <meta http-equiv="pragma" content="no-cache" /> 318: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl"> 319: </head> 320: <html> 321: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'> 322: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 323: $typestyle 324: <b>Sent $sendsomething message(s), and $sendposts post(s).</b> 325: <font color="red">$status</font> 326: <form name="reldt" action="$feedurl" target="loncapaclient"> 327: </form> 328: </body> 329: </html> 330: ENDREDIR 331: } 332: 333: sub no_redirect_back { 334: my ($r,$feedurl) = @_; 335: $r->print (<<ENDNOREDIR); 336: <head><title>Feedback not sent</title> 337: <meta http-equiv="pragma" content="no-cache" /> 338: ENDNOREDIR 339: 340: if ($feedurl!~/^\/adm\/feedback/) { 341: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">'); 342: } 343: 344: $r->print (<<ENDNOREDIRTWO); 345: </head> 346: <html> 347: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'> 348: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 349: <b>Sorry, no feedback possible on this resource ...</b> 350: </body> 351: </html> 352: ENDNOREDIRTWO 353: } 354: 355: sub screen_header { 356: my ($feedurl) = @_; 357: my $msgoptions=''; 358: my $discussoptions=''; 359: unless ($ENV{'form.replydisc'}) { 360: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) { 361: $msgoptions= 362: '<p><input type="checkbox" name="author" /> '. 363: &mt('Feedback to resource author').'</p>'; 364: } 365: if (&feedback_available(1)) { 366: $msgoptions.= 367: '<br /><input type="checkbox" name="question" /> '. 368: &mt('Question about resource content'); 369: } 370: if (&feedback_available(0,1)) { 371: $msgoptions.= 372: '<br /><input type="checkbox" name="course" /> '. 373: &mt('Question/Comment/Feedback about course content'); 374: } 375: if (&feedback_available(0,0,1)) { 376: $msgoptions.= 377: '<br /><input type="checkbox" name="policy" /> '. 378: &mt('Question/Comment/Feedback about course policy'); 379: } 380: } 381: if ($ENV{'request.course.id'}) { 382: if (&Apache::lonnet::allowed('pch', 383: $ENV{'request.course.id'}. 384: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 385: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" /> '. 386: &mt('Contribution to course discussion of resource'); 387: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '. 388: &mt('Anonymous contribution to course discussion of resource'). 389: ' <i>('.&mt('name only visible to course faculty').')</i>'; 390: } 391: } 392: if ($msgoptions) { $msgoptions='<h2>'.&mt('Sending Messages').'</h2>'.$msgoptions; } 393: if ($discussoptions) { 394: $discussoptions='<h2>'.&mt('Discussion Contributions').'</h2>'.$discussoptions; } 395: return $msgoptions.$discussoptions; 396: } 397: 398: sub resource_output { 399: my ($feedurl) = @_; 400: my $usersaw=&Apache::lonnet::ssi_body($feedurl); 401: $usersaw=~s/\<body[^\>]*\>//gi; 402: $usersaw=~s/\<\/body\>//gi; 403: $usersaw=~s/\<html\>//gi; 404: $usersaw=~s/\<\/html\>//gi; 405: $usersaw=~s/\<head\>//gi; 406: $usersaw=~s/\<\/head\>//gi; 407: $usersaw=~s/action\s*\=/would_be_action\=/gi; 408: return $usersaw; 409: } 410: 411: sub clear_out_html { 412: my ($message,$override)=@_; 413: my $cid=$ENV{'request.course.id'}; 414: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) || 415: ($override)) { 416: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG> 417: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> 418: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1, 419: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1, 420: M=>1); 421: 422: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/ 423: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge; 424: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/ 425: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge; 426: } else { 427: $message=~s/\</\&lt\;/g; 428: $message=~s/\>/\&gt\;/g; 429: } 430: return $message; 431: } 432: 433: sub assemble_email { 434: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_; 435: my $email=<<"ENDEMAIL"; 436: Refers to <a href="$feedurl">$feedurl</a> 437: 438: $message 439: ENDEMAIL 440: my $citations=<<"ENDCITE"; 441: <h2>Previous attempts of student (if applicable)</h2> 442: $prevattempts 443: <br /><hr /> 444: <h2>Original screen output (if applicable)</h2> 445: $usersaw 446: <h2>Correct Answer(s) (if applicable)</h2> 447: $useranswer 448: ENDCITE 449: return ($email,$citations); 450: } 451: 452: sub secapply { 453: my $rec=shift; 454: my $defaultflag=shift; 455: $rec=~s/\s+//g; 456: $rec=~s/\@/\:/g; 457: my ($adr,$sections)=($rec=~/^([^$]+)\(([^$]+)\)/); 458: if ($sections) { 459: foreach (split(/\;/,$sections)) { 460: if (($_ eq $ENV{'request.course.sec'}) || 461: ($defaultflag && ($_ eq '*'))) { 462: return $adr; 463: } 464: } 465: } else { 466: return $rec; 467: } 468: return ''; 469: } 470: 471: sub decide_receiver { 472: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_; 473: my $typestyle=''; 474: my %to=(); 475: if ($ENV{'form.author'}||$author) { 476: $typestyle.='Submitting as Author Feedback<br>'; 477: $feedurl=~/^\/res\/(\w+)\/(\w+)\//; 478: $to{$2.':'.$1}=1; 479: } 480: if ($ENV{'form.question'}||$question) { 481: $typestyle.='Submitting as Question<br>'; 482: foreach (split(/\,/, 483: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) 484: ) { 485: my $rec=&secapply($_,$defaultflag); 486: if ($rec) { $to{$rec}=1; } 487: } 488: } 489: if ($ENV{'form.course'}||$course) { 490: $typestyle.='Submitting as Comment<br />'; 491: foreach (split(/\,/, 492: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) 493: ) { 494: my $rec=&secapply($_,$defaultflag); 495: if ($rec) { $to{$rec}=1; } 496: } 497: } 498: if ($ENV{'form.policy'}||$policy) { 499: $typestyle.='Submitting as Policy Feedback<br />'; 500: foreach (split(/\,/, 501: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) 502: ) { 503: my $rec=&secapply($_,$defaultflag); 504: if ($rec) { $to{$rec}=1; } 505: } 506: } 507: if ((scalar(%to) eq '0') && (!$defaultflag)) { 508: ($typestyle,%to)= 509: &decide_receiver($feedurl,$author,$question,$course,$policy,1); 510: } 511: return ($typestyle,%to); 512: } 513: 514: sub feedback_available { 515: my ($question,$course,$policy)=@_; 516: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy); 517: return scalar(%to); 518: } 519: 520: sub send_msg { 521: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_; 522: my $status=''; 523: my $sendsomething=0; 524: foreach (keys %to) { 525: if ($_) { 526: my $declutter=&Apache::lonnet::declutter($feedurl); 527: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_), 528: 'Feedback ['.$declutter.']',$email,$citations,$feedurl, 529: $attachmenturl)=~/ok/) { 530: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />'; 531: } else { 532: $sendsomething++; 533: } 534: } 535: } 536: 537: my %record=&Apache::lonnet::restore('_feedback'); 538: my ($temp)=keys %record; 539: unless ($temp=~/^error\:/) { 540: my %newrecord=(); 541: $newrecord{'resource'}=$feedurl; 542: $newrecord{'subnumber'}=$record{'subnumber'}+1; 543: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') { 544: $status.='<br />'.&mt('Not registered').'<br />'; 545: } 546: } 547: 548: return ($status,$sendsomething); 549: } 550: 551: sub adddiscuss { 552: my ($symb,$email,$anon,$attachmenturl)=@_; 553: my $status=''; 554: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}. 555: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 556: 557: my %contrib=('message' => $email, 558: 'sendername' => $ENV{'user.name'}, 559: 'senderdomain' => $ENV{'user.domain'}, 560: 'screenname' => $ENV{'environment.screenname'}, 561: 'plainname' => $ENV{'environment.firstname'}.' '. 562: $ENV{'environment.middlename'}.' '. 563: $ENV{'environment.lastname'}.' '. 564: $ENV{'enrironment.generation'}, 565: 'attachmenturl'=> $attachmenturl); 566: if ($ENV{'form.replydisc'}) { 567: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1]; 568: } 569: if ($anon) { 570: $contrib{'anonymous'}='true'; 571: } 572: if (($symb) && ($email)) { 573: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '. 574: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'}, 575: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 576: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 577: my %storenewentry=($symb => time); 578: $status.='<br />'.&mt('Updating discussion time').': '. 579: &Apache::lonnet::put('discussiontimes',\%storenewentry, 580: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 581: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 582: } 583: my %record=&Apache::lonnet::restore('_discussion'); 584: my ($temp)=keys %record; 585: unless ($temp=~/^error\:/) { 586: my %newrecord=(); 587: $newrecord{'resource'}=$symb; 588: $newrecord{'subnumber'}=$record{'subnumber'}+1; 589: $status.='<br />'.&mt('Registering').': '. 590: &Apache::lonnet::cstore(\%newrecord,'_discussion'); 591: } 592: } else { 593: $status.='Failed.'; 594: } 595: return $status.'<br />'; 596: } 597: 598: # ----------------------------------------------------------- Preview function 599: 600: sub show_preview { 601: my $r=shift; 602: my $message=&clear_out_html($ENV{'form.comment'}); 603: $message=~s/\n/\<br \/\>/g; 604: $message=&Apache::lontexconvert::msgtexconverted($message); 605: $r->print('<table border="2"><tr><td>'. 606: $message.'</td></tr></table>'); 607: } 608: 609: sub generate_preview_button { 610: my $pre=&mt("Show Preview"); 611: return(<<ENDPREVIEW); 612: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview"> 613: <input type="hidden" name="comment" /> 614: <input type="button" value="$pre" 615: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" /> 616: </form> 617: ENDPREVIEW 618: } 619: sub handler { 620: my $r = shift; 621: if ($r->header_only) { 622: $r->content_type('text/html'); 623: $r->send_http_header; 624: return OK; 625: } 626: 627: # --------------------------- Get query string for limited number of parameters 628: 629: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 630: ['hide','unhide','deldisc','postdata','preview','replydisc']); 631: 632: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) { 633: # ----------------------------------------------------------------- Hide/unhide 634: $r->content_type('text/html'); 635: $r->send_http_header; 636: 637: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'}; 638: 639: my ($symb,$idx)=split(/\:\:\:/,$entry); 640: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 641: 642: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 643: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 644: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 645: 646: 647: my $currenthidden=$contrib{'hidden'}; 648: 649: if ($ENV{'form.hide'}) { 650: $currenthidden.='.'.$idx.'.'; 651: } else { 652: $currenthidden=~s/\.$idx\.//g; 653: } 654: my %newhash=('hidden' => $currenthidden); 655: 656: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 657: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 658: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 659: 660: &redirect_back($r,&Apache::lonnet::clutter($url), 661: &mt('Changed discussion status').'<br />','0','0'); 662: } elsif ($ENV{'form.deldisc'}) { 663: # --------------------------------------------------------------- Hide for good 664: $r->content_type('text/html'); 665: $r->send_http_header; 666: 667: my $entry=$ENV{'form.deldisc'}; 668: 669: my ($symb,$idx)=split(/\:\:\:/,$entry); 670: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 671: 672: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 673: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 674: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 675: 676: 677: my $currentdeleted=$contrib{'deleted'}; 678: 679: $currentdeleted.='.'.$idx.'.'; 680: 681: my %newhash=('deleted' => $currentdeleted); 682: 683: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 684: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 685: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 686: 687: &redirect_back($r,&Apache::lonnet::clutter($url), 688: &mt('Changed discussion status').'<br />','0','0'); 689: } elsif ($ENV{'form.preview'}) { 690: # -------------------------------------------------------- User wants a preview 691: &show_preview($r); 692: } else { 693: # ------------------------------------------------------------- Normal feedback 694: my $feedurl=$ENV{'form.postdata'}; 695: $feedurl=~s/^http\:\/\///; 696: $feedurl=~s/^$ENV{'SERVER_NAME'}//; 697: $feedurl=~s/^$ENV{'HTTP_HOST'}//; 698: $feedurl=~s/\?.+$//; 699: 700: my $symb; 701: if ($ENV{'form.replydisc'}) { 702: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0]; 703: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 704: $feedurl=&Apache::lonnet::clutter($url); 705: } else { 706: $symb=&Apache::lonnet::symbread($feedurl); 707: } 708: unless ($symb) { 709: $symb=$ENV{'form.symb'}; 710: if ($symb) { 711: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 712: $feedurl=&Apache::lonnet::clutter($url); 713: } 714: } 715: my $goahead=1; 716: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) { 717: unless ($symb) { $goahead=0; } 718: } 719: 720: if ($goahead) { 721: # Go ahead with feedback, no ambiguous reference 722: $r->content_type('text/html'); 723: $r->send_http_header; 724: 725: if ( 726: ( 727: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:) 728: ) 729: || 730: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:)) 731: || 732: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/)) 733: ) { 734: # --------------------------------------------------- Print login screen header 735: unless ($ENV{'form.sendit'}) { 736: my $options=&screen_header($feedurl); 737: if ($options) { 738: &mail_screen($r,$feedurl,$options); 739: } else { 740: &fail_redirect($r,$feedurl); 741: } 742: } else { 743: 744: # Get previous user input 745: my $prevattempts=&Apache::loncommon::get_previous_attempt( 746: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 747: $ENV{'request.course.id'}); 748: 749: # Get output from resource 750: my $usersaw=&resource_output($feedurl); 751: 752: # Get resource answer (need to allow student to view grades for this to work) 753: &Apache::lonnet::appenv(('allowed.vgr'=>'F')); 754: my $useranswer=&Apache::loncommon::get_student_answers( 755: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 756: $ENV{'request.course.id'}); 757: &Apache::lonnet::delenv('allowed.vgr'); 758: # Get attachments, if any, and not too large 759: my $attachmenturl=''; 760: if ($ENV{'form.attachment.filename'}) { 761: unless (length($ENV{'form.attachment'})>131072) { 762: $attachmenturl=&Apache::lonnet::userfileupload('attachment'); 763: } 764: } 765: # Filter HTML out of message (could be nasty) 766: my $message=&clear_out_html($ENV{'form.comment'}); 767: 768: # Assemble email 769: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts, 770: $usersaw,$useranswer); 771: 772: # Who gets this? 773: my ($typestyle,%to) = &decide_receiver($feedurl); 774: 775: # Actually send mail 776: my ($status,$numsent)=&send_msg($feedurl,$email,$citations, 777: $attachmenturl,%to); 778: 779: # Discussion? Store that. 780: 781: my $numpost=0; 782: if ($ENV{'form.discuss'}) { 783: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl); 784: $numpost++; 785: } 786: 787: if ($ENV{'form.anondiscuss'}) { 788: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl); 789: $numpost++; 790: } 791: 792: 793: # Receipt screen and redirect back to where came from 794: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status); 795: 796: } 797: } else { 798: # Unable to give feedback 799: &no_redirect_back($r,$feedurl); 800: } 801: } else { 802: # Ambiguous Problem Resource 803: if ( &Apache::lonnet::mod_perl_version() == 2 ) { 804: &Apache::lonnet::cleanenv(); 805: } 806: $r->internal_redirect('/adm/ambiguous'); 807: } 808: } 809: return OK; 810: } 811: 812: 1; 813: __END__