loncom/interface/lonfeedback.pm - view

File: [LON-CAPA] / loncom / interface / lonfeedback.pm
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Mon Nov 3 23:23:34 2003 UTC (20 years, 6 months ago) by www
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1: # The LearningOnline Network 2: # Feedback 3: # 4: # $Id: lonfeedback.pm,v 1.66 2003/11/03 23:23:34 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: if ($contrib{'version'}) { 77: for (my $id=1;$id<=$contrib{'version'};$id++) { 78: my $idx=$id; 79: my $hidden=($contrib{'hidden'}=~/\.$idx\./); 80: my $deleted=($contrib{'deleted'}=~/\.$idx\./); 81: unless ((($hidden) && (!$seeid)) || ($deleted)) { 82: my $message=$contrib{$idx.':message'}; 83: $message=~s/\n/\<br \/\>/g; 84: $message=&Apache::lontexconvert::msgtexconverted($message); 85: if ($contrib{$idx.':attachmenturl'}) { 86: my ($fname,$ft) 87: =($contrib{$idx.':attachmenturl'}=~/\/(\w+)\.(\w+)$/); 88: $message.='<p>'.&mt('Attachment').': <a href="'. 89: &Apache::lonnet::tokenwrapper( 90: $contrib{$idx.':attachmenturl'}). 91: '"><tt>'.$fname.'.'.$ft.'</tt></a></p>'; 92: } 93: if ($message) { 94: if ($hidden) { 95: $message='<font color="#888888">'.$message.'</font>'; 96: } 97: my $screenname=&Apache::loncommon::screenname( 98: $contrib{$idx.':sendername'}, 99: $contrib{$idx.':senderdomain'}); 100: my $plainname=&Apache::loncommon::nickname( 101: $contrib{$idx.':sendername'}, 102: $contrib{$idx.':senderdomain'}); 103: 104: my $sender=&mt('Anonymous'); 105: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) { 106: $sender=&Apache::loncommon::aboutmewrapper( 107: $plainname, 108: $contrib{$idx.':sendername'}, 109: $contrib{$idx.':senderdomain'}).' ('. 110: $contrib{$idx.':sendername'}.' at '. 111: $contrib{$idx.':senderdomain'}.')'; 112: if ($contrib{$idx.':anonymous'}) { 113: $sender.=' ['.&mt('anonymous').'] '. 114: $screenname; 115: } 116: if ($seeid) { 117: if ($hidden) { 118: $sender.=' <a href="/adm/feedback?unhide='. 119: $symb.':::'.$idx.'">'.&mt('Make Visible').'</a>'; 120: } else { 121: $sender.=' <a href="/adm/feedback?hide='. 122: $symb.':::'.$idx.'">'.&mt('Hide').'</a>'; 123: } 124: $sender.=' <a href="/adm/feedback?deldisc='. 125: $symb.':::'.$idx.'">'.&mt('Delete').'</a>'; 126: } 127: if (&Apache::lonnet::allowed('pch', 128: $ENV{'request.course.id'}. 129: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 130: $sender.=' <a href="/adm/feedback?replydisc='. 131: $symb.':::'.$idx.'">'.&mt('Reply').'</a>'; 132: } 133: } else { 134: if ($screenname) { 135: $sender='<i>'.$screenname.'</i>'; 136: } 137: } 138: my $vgrlink; 139: if ($viewgrades) { 140: $vgrlink=&Apache::loncommon::submlink('Submissions', 141: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb); 142: } 143: $discussionitems{$idx}='<p><b>'.$sender.'</b> '.$vgrlink.' ('. 144: localtime($contrib{$idx.':timestamp'}). 145: '):<blockquote>'.$message. 146: '</blockquote></p>'; 147: } 148: } 149: } 150: } 151: my $discussion='<hr />'; 152: foreach (sort { $a <=> $b } keys %discussionitems) { 153: $discussion.=$discussionitems{$_}; 154: } 155: if ($discussiononly) { 156: $discussion.=(<<ENDDISCUSS); 157: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> 158: <input type="submit" name="discuss" value="Post Discussion" /> 159: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" /> 160: <input type="hidden" name="symb" value="$symb" /> 161: <input type="hidden" name="sendit" value="true" /> 162: <br /> 163: <font size="1">Note: in anonymous discussion, your name is visible only to 164: course faculty</font><br /> 165: <textarea name="comment" cols="60" rows="10" wrap="hard"></textarea> 166: <p> 167: Attachment (128 KB max size): <input type="file" name="attachment" /> 168: </p> 169: </form> 170: ENDDISCUSS 171: $discussion.=&generate_preview_button(); 172: } 173: return $discussion; 174: } 175: 176: sub mail_screen { 177: my ($r,$feedurl,$options) = @_; 178: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion', 179: '','onLoad="window.focus();"'); 180: my $title=&Apache::lonnet::gettitle($feedurl); 181: if (!$title) { $title = $feedurl; } 182: my $latexHelp = Apache::loncommon::helpLatexCheatsheet(); 183: $r->print(<<ENDDOCUMENT); 184: <html> 185: <head> 186: <title>The LearningOnline Network with CAPA</title> 187: <meta http-equiv="pragma" content="no-cache"></meta> 188: <script type="text/javascript"> 189: // 230: </script> 231: </head> 232: $bodytag 233: <h2><tt>$title</tt></h2> 234: <form action="/adm/feedback" method="post" name="mailform" 235: enctype="multipart/form-data"> 236: <input type="hidden" name="postdata" value="$feedurl" /> 237: Please check at least one of the following feedback types: 238: $options<hr /> 239: <p>My question/comment/feedback:</p> 240: <p> 241: $latexHelp 242: <textarea name="comment" cols="60" rows="10" wrap="hard"> 243: </textarea></p> 244: <p> 245: Attachment (128 KB max size): <input type="file" name="attachment" /> 246: </p> 247: <p> 248: <input type="hidden" name="sendit" value="1" /> 249: <input type="button" value="Send Feedback" onClick='gosubmit();' /> 250: </p> 251: </form> 252: ENDDOCUMENT 253: $r->print(&generate_preview_button().'</body></html>'); 254: } 255: 256: sub fail_redirect { 257: my ($r,$feedurl) = @_; 258: $r->print (<<ENDFAILREDIR); 259: <head><title>Feedback not sent</title> 260: <meta http-equiv="pragma" content="no-cache" /> 261: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" /> 262: </head> 263: <html> 264: <body bgcolor="#FFFFFF"> 265: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 266: <b>Sorry, no recipients ...</b> 267: </body> 268: </html> 269: ENDFAILREDIR 270: } 271: 272: sub redirect_back { 273: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status) = @_; 274: $r->print (<<ENDREDIR); 275: <head> 276: <title>Feedback sent</title> 277: <meta http-equiv="pragma" content="no-cache" /> 278: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl"> 279: </head> 280: <html> 281: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'> 282: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 283: $typestyle 284: <b>Sent $sendsomething message(s), and $sendposts post(s).</b> 285: <font color="red">$status</font> 286: <form name="reldt" action="$feedurl" target="loncapaclient"> 287: </form> 288: </body> 289: </html> 290: ENDREDIR 291: } 292: 293: sub no_redirect_back { 294: my ($r,$feedurl) = @_; 295: $r->print (<<ENDNOREDIR); 296: <head><title>Feedback not sent</title> 297: <meta http-equiv="pragma" content="no-cache" /> 298: ENDNOREDIR 299: 300: if ($feedurl!~/^\/adm\/feedback/) { 301: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">'); 302: } 303: 304: $r->print (<<ENDNOREDIRTWO); 305: </head> 306: <html> 307: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'> 308: <img align="right" src="/adm/lonIcons/lonlogos.gif" /> 309: <b>Sorry, no feedback possible on this resource ...</b> 310: </body> 311: </html> 312: ENDNOREDIRTWO 313: } 314: 315: sub screen_header { 316: my ($feedurl) = @_; 317: my $msgoptions=''; 318: my $discussoptions=''; 319: unless ($ENV{'form.replydisc'}) { 320: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) { 321: $msgoptions= 322: '<p><input type="checkbox" name="author" /> '. 323: &mt('Feedback to resource author').'</p>'; 324: } 325: if (&feedback_available(1)) { 326: $msgoptions.= 327: '<br /><input type="checkbox" name="question" /> '. 328: &mt('Question about resource content'); 329: } 330: if (&feedback_available(0,1)) { 331: $msgoptions.= 332: '<br /><input type="checkbox" name="course" /> '. 333: &mt('Question/Comment/Feedback about course content'); 334: } 335: if (&feedback_available(0,0,1)) { 336: $msgoptions.= 337: '<br /><input type="checkbox" name="policy" /> '. 338: &mt('Question/Comment/Feedback about course policy'); 339: } 340: } 341: if ($ENV{'request.course.id'}) { 342: if (&Apache::lonnet::allowed('pch', 343: $ENV{'request.course.id'}. 344: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 345: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" /> '. 346: &mt('Contribution to course discussion of resource'); 347: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '. 348: &mt('Anonymous contribution to course discussion of resource'). 349: ' <i>('.&mt('name only visible to course faculty').')</i>'; 350: } 351: } 352: if ($msgoptions) { $msgoptions='<h2>'.&mt('Sending Messages').'</h2>'.$msgoptions; } 353: if ($discussoptions) { 354: $discussoptions='<h2>'.&mt('Discussion Contributions').'</h2>'.$discussoptions; } 355: return $msgoptions.$discussoptions; 356: } 357: 358: sub resource_output { 359: my ($feedurl) = @_; 360: my $usersaw=&Apache::lonnet::ssi_body($feedurl); 361: $usersaw=~s/\<body[^\>]*\>//gi; 362: $usersaw=~s/\<\/body\>//gi; 363: $usersaw=~s/\<html\>//gi; 364: $usersaw=~s/\<\/html\>//gi; 365: $usersaw=~s/\<head\>//gi; 366: $usersaw=~s/\<\/head\>//gi; 367: $usersaw=~s/action\s*\=/would_be_action\=/gi; 368: return $usersaw; 369: } 370: 371: sub clear_out_html { 372: my ($message,$override)=@_; 373: my $cid=$ENV{'request.course.id'}; 374: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) || 375: ($override)) { 376: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG> 377: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> 378: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1, 379: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1, 380: M=>1); 381: 382: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/ 383: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge; 384: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/ 385: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge; 386: } else { 387: $message=~s/\</\&lt\;/g; 388: $message=~s/\>/\&gt\;/g; 389: } 390: return $message; 391: } 392: 393: sub assemble_email { 394: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_; 395: my $email=<<"ENDEMAIL"; 396: Refers to <a href="$feedurl">$feedurl</a> 397: 398: $message 399: ENDEMAIL 400: my $citations=<<"ENDCITE"; 401: <h2>Previous attempts of student (if applicable)</h2> 402: $prevattempts 403: <br /><hr /> 404: <h2>Original screen output (if applicable)</h2> 405: $usersaw 406: <h2>Correct Answer(s) (if applicable)</h2> 407: $useranswer 408: ENDCITE 409: return ($email,$citations); 410: } 411: 412: sub secapply { 413: my $rec=shift; 414: my $defaultflag=shift; 415: $rec=~s/\s+//g; 416: $rec=~s/\@/\:/g; 417: my ($adr,$sections)=($rec=~/^([^$]+)\(([^$]+)\)/); 418: if ($sections) { 419: foreach (split(/\;/,$sections)) { 420: if (($_ eq $ENV{'request.course.sec'}) || 421: ($defaultflag && ($_ eq '*'))) { 422: return $adr; 423: } 424: } 425: } else { 426: return $rec; 427: } 428: return ''; 429: } 430: 431: sub decide_receiver { 432: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_; 433: my $typestyle=''; 434: my %to=(); 435: if ($ENV{'form.author'}||$author) { 436: $typestyle.='Submitting as Author Feedback<br>'; 437: $feedurl=~/^\/res\/(\w+)\/(\w+)\//; 438: $to{$2.':'.$1}=1; 439: } 440: if ($ENV{'form.question'}||$question) { 441: $typestyle.='Submitting as Question<br>'; 442: foreach (split(/\,/, 443: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) 444: ) { 445: my $rec=&secapply($_,$defaultflag); 446: if ($rec) { $to{$rec}=1; } 447: } 448: } 449: if ($ENV{'form.course'}||$course) { 450: $typestyle.='Submitting as Comment<br />'; 451: foreach (split(/\,/, 452: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) 453: ) { 454: my $rec=&secapply($_,$defaultflag); 455: if ($rec) { $to{$rec}=1; } 456: } 457: } 458: if ($ENV{'form.policy'}||$policy) { 459: $typestyle.='Submitting as Policy Feedback<br />'; 460: foreach (split(/\,/, 461: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) 462: ) { 463: my $rec=&secapply($_,$defaultflag); 464: if ($rec) { $to{$rec}=1; } 465: } 466: } 467: if ((scalar(%to) eq '0') && (!$defaultflag)) { 468: ($typestyle,%to)= 469: &decide_receiver($feedurl,$author,$question,$course,$policy,1); 470: } 471: return ($typestyle,%to); 472: } 473: 474: sub feedback_available { 475: my ($question,$course,$policy)=@_; 476: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy); 477: return scalar(%to); 478: } 479: 480: sub send_msg { 481: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_; 482: my $status=''; 483: my $sendsomething=0; 484: foreach (keys %to) { 485: if ($_) { 486: my $declutter=&Apache::lonnet::declutter($feedurl); 487: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_), 488: 'Feedback ['.$declutter.']',$email,$citations,$feedurl, 489: $attachmenturl)=~/ok/) { 490: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />'; 491: } else { 492: $sendsomething++; 493: } 494: } 495: } 496: 497: my %record=&Apache::lonnet::restore('_feedback'); 498: my ($temp)=keys %record; 499: unless ($temp=~/^error\:/) { 500: my %newrecord=(); 501: $newrecord{'resource'}=$feedurl; 502: $newrecord{'subnumber'}=$record{'subnumber'}+1; 503: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') { 504: $status.='<br />'.&mt('Not registered').'<br />'; 505: } 506: } 507: 508: return ($status,$sendsomething); 509: } 510: 511: sub adddiscuss { 512: my ($symb,$email,$anon,$attachmenturl)=@_; 513: my $status=''; 514: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}. 515: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { 516: 517: my %contrib=('message' => $email, 518: 'sendername' => $ENV{'user.name'}, 519: 'senderdomain' => $ENV{'user.domain'}, 520: 'screenname' => $ENV{'environment.screenname'}, 521: 'plainname' => $ENV{'environment.firstname'}.' '. 522: $ENV{'environment.middlename'}.' '. 523: $ENV{'environment.lastname'}.' '. 524: $ENV{'enrironment.generation'}, 525: 'attachmenturl'=> $attachmenturl); 526: if ($ENV{'form.replydisc'}) { 527: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1]; 528: } 529: if ($anon) { 530: $contrib{'anonymous'}='true'; 531: } 532: if (($symb) && ($email)) { 533: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '. 534: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'}, 535: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 536: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 537: my %storenewentry=($symb => time); 538: $status.='<br />'.&mt('Updating discussion time').': '. 539: &Apache::lonnet::put('discussiontimes',\%storenewentry, 540: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 541: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 542: } 543: my %record=&Apache::lonnet::restore('_discussion'); 544: my ($temp)=keys %record; 545: unless ($temp=~/^error\:/) { 546: my %newrecord=(); 547: $newrecord{'resource'}=$symb; 548: $newrecord{'subnumber'}=$record{'subnumber'}+1; 549: $status.='<br />'.&mt('Registering').': '. 550: &Apache::lonnet::cstore(\%newrecord,'_discussion'); 551: } 552: } else { 553: $status.='Failed.'; 554: } 555: return $status.'<br />'; 556: } 557: 558: # ----------------------------------------------------------- Preview function 559: 560: sub show_preview { 561: my $r=shift; 562: my $message=&clear_out_html($ENV{'form.comment'}); 563: $message=~s/\n/\<br \/\>/g; 564: $message=&Apache::lontexconvert::msgtexconverted($message); 565: $r->print('<table border="2"><tr><td>'. 566: $message.'</td></tr></table>'); 567: } 568: 569: sub generate_preview_button { 570: my $pre=&mt("Show Preview"); 571: return(<<ENDPREVIEW); 572: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview"> 573: <input type="hidden" name="comment" /> 574: <input type="button" value="$pre" 575: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" /> 576: </form> 577: ENDPREVIEW 578: } 579: sub handler { 580: my $r = shift; 581: if ($r->header_only) { 582: $r->content_type('text/html'); 583: $r->send_http_header; 584: return OK; 585: } 586: 587: # --------------------------- Get query string for limited number of parameters 588: 589: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 590: ['hide','unhide','deldisc','postdata','preview','replydisc']); 591: 592: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) { 593: # ----------------------------------------------------------------- Hide/unhide 594: $r->content_type('text/html'); 595: $r->send_http_header; 596: 597: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'}; 598: 599: my ($symb,$idx)=split(/\:\:\:/,$entry); 600: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 601: 602: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 603: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 604: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 605: 606: 607: my $currenthidden=$contrib{'hidden'}; 608: 609: if ($ENV{'form.hide'}) { 610: $currenthidden.='.'.$idx.'.'; 611: } else { 612: $currenthidden=~s/\.$idx\.//g; 613: } 614: my %newhash=('hidden' => $currenthidden); 615: 616: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 617: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 618: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 619: 620: &redirect_back($r,&Apache::lonnet::clutter($url), 621: &mt('Changed discussion status').'<br />','0','0'); 622: } elsif ($ENV{'form.deldisc'}) { 623: # --------------------------------------------------------------- Hide for good 624: $r->content_type('text/html'); 625: $r->send_http_header; 626: 627: my $entry=$ENV{'form.deldisc'}; 628: 629: my ($symb,$idx)=split(/\:\:\:/,$entry); 630: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); 631: 632: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, 633: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 634: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 635: 636: 637: my $currentdeleted=$contrib{'deleted'}; 638: 639: $currentdeleted.='.'.$idx.'.'; 640: 641: my %newhash=('deleted' => $currentdeleted); 642: 643: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'}, 644: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 645: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); 646: 647: &redirect_back($r,&Apache::lonnet::clutter($url), 648: &mt('Changed discussion status').'<br />','0','0'); 649: } elsif ($ENV{'form.preview'}) { 650: # -------------------------------------------------------- User wants a preview 651: &show_preview($r); 652: } else { 653: # ------------------------------------------------------------- Normal feedback 654: my $feedurl=$ENV{'form.postdata'}; 655: $feedurl=~s/^http\:\/\///; 656: $feedurl=~s/^$ENV{'SERVER_NAME'}//; 657: $feedurl=~s/^$ENV{'HTTP_HOST'}//; 658: $feedurl=~s/\?.+$//; 659: 660: my $symb; 661: if ($ENV{'form.replydisc'}) { 662: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0]; 663: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 664: $feedurl=&Apache::lonnet::clutter($url); 665: } else { 666: $symb=&Apache::lonnet::symbread($feedurl); 667: } 668: unless ($symb) { 669: $symb=$ENV{'form.symb'}; 670: if ($symb) { 671: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb); 672: $feedurl=&Apache::lonnet::clutter($url); 673: } 674: } 675: my $goahead=1; 676: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) { 677: unless ($symb) { $goahead=0; } 678: } 679: 680: if ($goahead) { 681: # Go ahead with feedback, no ambiguous reference 682: $r->content_type('text/html'); 683: $r->send_http_header; 684: 685: if ( 686: ( 687: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:) 688: ) 689: || 690: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:)) 691: || 692: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/)) 693: ) { 694: # --------------------------------------------------- Print login screen header 695: unless ($ENV{'form.sendit'}) { 696: my $options=&screen_header($feedurl); 697: if ($options) { 698: &mail_screen($r,$feedurl,$options); 699: } else { 700: &fail_redirect($r,$feedurl); 701: } 702: } else { 703: 704: # Get previous user input 705: my $prevattempts=&Apache::loncommon::get_previous_attempt( 706: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 707: $ENV{'request.course.id'}); 708: 709: # Get output from resource 710: my $usersaw=&resource_output($feedurl); 711: 712: # Get resource answer (need to allow student to view grades for this to work) 713: &Apache::lonnet::appenv(('allowed.vgr'=>'F')); 714: my $useranswer=&Apache::loncommon::get_student_answers( 715: $symb,$ENV{'user.name'},$ENV{'user.domain'}, 716: $ENV{'request.course.id'}); 717: &Apache::lonnet::delenv('allowed.vgr'); 718: # Get attachments, if any, and not too large 719: my $attachmenturl=''; 720: if ($ENV{'form.attachment.filename'}) { 721: unless (length($ENV{'form.attachment'})>131072) { 722: $attachmenturl=&Apache::lonnet::userfileupload('attachment'); 723: } 724: } 725: # Filter HTML out of message (could be nasty) 726: my $message=&clear_out_html($ENV{'form.comment'}); 727: 728: # Assemble email 729: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts, 730: $usersaw,$useranswer); 731: 732: # Who gets this? 733: my ($typestyle,%to) = &decide_receiver($feedurl); 734: 735: # Actually send mail 736: my ($status,$numsent)=&send_msg($feedurl,$email,$citations, 737: $attachmenturl,%to); 738: 739: # Discussion? Store that. 740: 741: my $numpost=0; 742: if ($ENV{'form.discuss'}) { 743: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl); 744: $numpost++; 745: } 746: 747: if ($ENV{'form.anondiscuss'}) { 748: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl); 749: $numpost++; 750: } 751: 752: 753: # Receipt screen and redirect back to where came from 754: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status); 755: 756: } 757: } else { 758: # Unable to give feedback 759: &no_redirect_back($r,$feedurl); 760: } 761: } else { 762: # Ambiguous Problem Resource 763: if ( &Apache::lonnet::mod_perl_version() == 2 ) { 764: &Apache::lonnet::cleanenv(); 765: } 766: $r->internal_redirect('/adm/ambiguous'); 767: } 768: } 769: return OK; 770: } 771: 772: 1; 773: __END__