Annotation of loncom/interface/lonnavmaps.pm, revision 1.28

1.2       www         1: # The LearningOnline Network with CAPA
                      2: # Navigate Maps Handler
1.1       www         3: #
1.28    ! albertel    4: # $Id: lonnavmaps.pm,v 1.27 2002/02/28 19:45:14 albertel Exp $
1.20      albertel    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: #
1.2       www        28: # (Page Handler
1.1       www        29: #
1.2       www        30: # (TeX Content Handler
1.1       www        31: #
1.2       www        32: # 05/29/00,05/30 Gerd Kortemeyer)
                     33: # 08/30,08/31,09/06,09/14,09/15,09/16,09/19,09/20,09/21,09/23,
                     34: # 10/02,10/10,10/14,10/16,10/18,10/19,10/31,11/6,11/14,11/16 Gerd Kortemeyer)
1.1       www        35: #
1.17      www        36: # 3/1/1,6/1,17/1,29/1,30/1,2/8,9/21,9/24,9/25 Gerd Kortemeyer
1.21      www        37: # YEAR=2002
                     38: # 1/1 Gerd Kortemeyer
                     39: #
1.2       www        40: 
1.1       www        41: package Apache::lonnavmaps;
                     42: 
                     43: use strict;
1.2       www        44: use Apache::Constants qw(:common :http);
                     45: use Apache::lonnet();
1.18      albertel   46: use Apache::loncommon();
1.2       www        47: use HTML::TokeParser;
                     48: use GDBM_File;
                     49: 
                     50: # -------------------------------------------------------------- Module Globals
                     51: my %hash;
                     52: my @rows;
                     53: 
1.10      www        54: #
                     55: # These cache hashes need to be independent of user, resource and course
                     56: # (user and course can/should be in the keys)
                     57: #
                     58: 
                     59: my %courserdatas;
                     60: my %userrdatas;
                     61: 
                     62: #
                     63: # These global hashes are dependent on user, course and resource, 
                     64: # and need to be initialized every time when a sheet is calculated
                     65: #
                     66: my %courseopt;
                     67: my %useropt;
                     68: my %parmhash;
                     69: 
1.2       www        70: # ------------------------------------------------------------------ Euclid gcd
                     71: 
                     72: sub euclid {
                     73:     my ($e,$f)=@_;
                     74:     my $a; my $b; my $r;
                     75:     if ($e>$f) { $b=$e; $r=$f; } else { $r=$e; $b=$f; }
                     76:     while ($r!=0) {
                     77: 	$a=$b; $b=$r;
                     78:         $r=$a%$b;
                     79:     }
                     80:     return $b;
                     81: }
                     82: 
1.10      www        83: # --------------------------------------------------------------------- Parmval
                     84: 
                     85: # -------------------------------------------- Figure out a cascading parameter
                     86: #
                     87: # For this function to work
                     88: #
                     89: # * parmhash needs to be tied
                     90: # * courseopt and useropt need to be initialized for this user and course
                     91: #
                     92: 
                     93: sub parmval {
                     94:     my ($what,$symb)=@_;
                     95:     my $cid=$ENV{'request.course.id'};
                     96:     my $csec=$ENV{'request.course.sec'};
                     97:     my $uname=$ENV{'user.name'};
                     98:     my $udom=$ENV{'user.domain'};
                     99: 
                    100:     unless ($symb) { return ''; }
                    101:     my $result='';
                    102: 
                    103:     my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
                    104: 
                    105: # ----------------------------------------------------- Cascading lookup scheme
1.24      albertel  106:     my $rwhat=$what;
                    107:     $what=~s/^parameter\_//;
                    108:     $what=~s/\_/\./;
                    109: 
                    110:     my $symbparm=$symb.'.'.$what;
                    111:     my $mapparm=$mapname.'___(all).'.$what;
                    112:     my $usercourseprefix=$uname.'_'.$udom.'_'.$cid;
                    113: 
                    114:     my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what;
                    115:     my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm;
                    116:     my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm;
                    117: 
                    118:     my $courselevel= $usercourseprefix.'.'.$what;
                    119:     my $courselevelr=$usercourseprefix.'.'.$symbparm;
                    120:     my $courselevelm=$usercourseprefix.'.'.$mapparm;
                    121: 
                    122: # ---------------------------------------------------------- first, check user
                    123:     if ($uname) {
                    124: 	if ($useropt{$courselevelr}) { return $useropt{$courselevelr}; }
                    125: 	if ($useropt{$courselevelm}) { return $useropt{$courselevelm}; }
                    126: 	if ($useropt{$courselevel}) { return $useropt{$courselevel}; }
                    127:     }
1.10      www       128: 
1.24      albertel  129: # ------------------------------------------------------- second, check course
                    130:     if ($csec) {
                    131: 	if ($courseopt{$seclevelr}) { return $courseopt{$seclevelr}; }
1.25      albertel  132:         if ($courseopt{$seclevelm}) { return $courseopt{$seclevelm}; }
1.10      www       133:         if ($courseopt{$seclevel}) { return $courseopt{$seclevel}; }
1.24      albertel  134:     }
1.10      www       135: 
1.24      albertel  136:     if ($courseopt{$courselevelr}) { return $courseopt{$courselevelr}; }
                    137:     if ($courseopt{$courselevelm}) { return $courseopt{$courselevelm}; }
                    138:     if ($courseopt{$courselevel}) { return $courseopt{$courselevel}; }
1.10      www       139: 
1.24      albertel  140: # ----------------------------------------------------- third, check map parms
1.10      www       141: 
1.24      albertel  142:     my $thisparm=$parmhash{$symbparm};
                    143:     if ($thisparm) { return $thisparm; }
1.10      www       144: 
1.24      albertel  145: # ----------------------------------------------------- fourth , check default
1.10      www       146: 
1.25      albertel  147:     my $default=&Apache::lonnet::metadata($fn,$rwhat.'.default');
                    148:     if ($default) { return $default}
                    149: 
                    150: # --------------------------------------------------- fifth , cascade up parts
                    151: 
                    152:     my ($space,@qualifier)=split(/\./,$rwhat);
                    153:     my $qualifier=join('.',@qualifier);
                    154:     unless ($space eq '0') {
                    155: 	my ($part,$id)=split(/\_/,$space);
                    156: 	if ($id) {
                    157: 	    my $partgeneral=&parmval($part.".$qualifier",$symb);
                    158: 	    if ($partgeneral) { return $partgeneral; }
                    159: 	} else {
                    160: 	    my $resourcegeneral=&parmval("0.$qualifier",$symb);
                    161: 	    if ($resourcegeneral) { return $resourcegeneral; }
                    162: 	}
                    163:     }
                    164:     return '';
1.10      www       165: }
                    166: 
                    167: 
                    168: 
1.9       www       169: # ------------------------------------------------------------- Find out status
1.25      albertel  170: # return codes
                    171: # tcode (timecode)
                    172: # 1: will open later
                    173: # 2: is open and not past due yet
                    174: # 3: is past due date
                    175: # 4: due in the next 24 hours
                    176: #
                    177: # code (curent solved status)
                    178: # 1: not attempted
                    179: # 2: attempted but wrong, or incorrect by instructor
                    180: # 3: solved or correct by instructor
                    181: # "excused" needs to be supported, but is not yet. Could be code=4.
1.9       www       182: sub astatus {
                    183:     my $rid=shift;
                    184:     my $code=1;
                    185:     my $ctext='';
                    186:     $rid=~/(\d+)\.(\d+)/;
1.10      www       187:     my $symb=&Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.
1.24      albertel  188: 	&Apache::lonnet::declutter($hash{'src_'.$rid});
1.15      www       189:     my %duedate=();
                    190:     my %opendate=();
                    191:     my %answerdate=();
1.25      albertel  192:     # need to always check part 0's open/due/answer status
                    193:     foreach (sort(split(/\,/,&Apache::lonnet::metadata($hash{'src_'.$rid},'keys')))) {
1.15      www       194:         if ($_=~/^parameter\_(.*)\_opendate$/) {
                    195: 	    my $part=$1;
                    196:             $duedate{$part}=&parmval($part.'.duedate',$symb);
                    197:             $opendate{$part}=&parmval($part.'.opendate',$symb);
                    198:             $answerdate{$part}=&parmval($part.'.answerdate',$symb);
                    199:         }
1.25      albertel  200:     }
1.11      www       201:     my $now=time;
                    202:     my $tcode=0;
1.16      www       203: 
                    204:     my %returnhash=&Apache::lonnet::restore($symb);
                    205: 
1.25      albertel  206:     foreach (sort(keys(%opendate))) {
1.24      albertel  207: 	my $duedate=$duedate{$_};
                    208: 	my $opendate=$opendate{$_};
                    209: 	my $answerdate=$answerdate{$_};
                    210: 	my $preface='';
                    211: 	unless ($_ eq '0') { $preface=' Part: '.$_.' '; }
                    212: 	if ($opendate) {
1.25      albertel  213: 	    if ($now<$duedate || (!$duedate)) {
                    214: 		unless ($tcode==4) { $tcode=2; }
                    215: 		if ($duedate) {
                    216: 		    $ctext.=$preface.'Due: '.localtime($duedate);
                    217: 		} else {
                    218: 		    $ctext.=$preface.'No Due Date';
                    219: 		}
                    220: 		if ($now<$opendate) {
                    221: 		    unless ($tcode) { $tcode=1; }
1.24      albertel  222: 		    $ctext.=$preface.'Open: '.localtime($opendate);
                    223: 		}
1.25      albertel  224: 		if ($duedate && $duedate-$now<86400) {
1.24      albertel  225: 		    $tcode=4;
                    226: 		    $ctext.=$preface.'Due: '.localtime($duedate);
                    227: 		}
                    228: 	    } else {
                    229: 		unless (($tcode==4) || ($tcode eq 2)) { $tcode=3; }
1.25      albertel  230: 		if ($now<$answerdate) {
1.24      albertel  231: 		    $ctext.='Answer: '.localtime($duedate);
                    232: 		}
                    233: 	    }
                    234: 	} else {
                    235: 	    unless (($tcode==2) || ($tcode==4)) { $tcode=1; }
                    236: 	}
                    237: 	
                    238: 	my $status=$returnhash{'resource.'.$_.'.solved'};
1.25      albertel  239: 	
1.24      albertel  240: 	if ($status eq 'correct_by_student') {
                    241: 	    unless ($code==2) { $code=3; }
                    242: 	    $ctext.=' solved';
                    243: 	} elsif ($status eq 'correct_by_override') {
                    244: 	    unless ($code==2) { $code=3; }
                    245: 	    $ctext.=' override';
                    246: 	} elsif ($status eq 'incorrect_attempted') {
                    247: 	    $code=2;
                    248: 	    $ctext.=' ('.
                    249: 		($returnhash{'resource.'.$_.'.tries'}?
1.25      albertel  250: 		 $returnhash{'resource.'.$_.'.tries'}:'0');
                    251: 	    my $numtries = &parmval($_.'.maxtries',$symb);
                    252: 	    if ($numtries) { $ctext.='/'.$numtries.' tries'; }
                    253: 	    $ctext.=')';
1.24      albertel  254: 	} elsif ($status eq 'incorrect_by_override') {
                    255: 	    $code=2;
                    256: 	    $ctext.=' override';
                    257: 	} elsif ($status eq 'excused') {
                    258: 	    unless ($code==2) { $code=3; }
                    259: 	    $ctext.=' excused';
                    260: 	}
1.25      albertel  261:     }
1.16      www       262: 
1.11      www       263:     return 'p'.$code.$tcode.'"'.$ctext.'"';
1.9       www       264: }
                    265: 
1.2       www       266: # ------------------------------------------------------------ Build page table
                    267: 
                    268: sub tracetable {
                    269:     my ($sofar,$rid,$beenhere)=@_;
                    270:     my $further=$sofar;
                    271:     unless ($beenhere=~/\&$rid\&/) {
1.28    ! albertel  272: 	$beenhere.=$rid.'&';  
        !           273: 	
        !           274: 	if (defined($hash{'is_map_'.$rid})) {
        !           275: 	    $sofar++;
        !           276: 	    my $tprefix='';
        !           277: 	    if ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}} 
        !           278: 		eq 'sequence') { 
        !           279: 		$tprefix='h'; 
        !           280: 	    }
        !           281: 	    if (defined($rows[$sofar])) {
        !           282: 		$rows[$sofar].='&'.$tprefix.$rid;
        !           283: 	    } else {
        !           284: 		$rows[$sofar]=$tprefix.$rid;
        !           285: 	    }
        !           286: 	    if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) &&
        !           287: 		(defined($hash{'map_finish_'.$hash{'src_'.$rid}})) &&
        !           288: 		($tprefix eq 'h')) {
        !           289: 		my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}};
        !           290: 		$sofar=
        !           291: 		    &tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},
        !           292: 				'&'.$frid.'&');
        !           293: 		$sofar++;
        !           294: 		if ($hash{'src_'.$frid}) {
        !           295: 		    my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid});
        !           296: 		    if (($brepriv eq '2') || ($brepriv eq 'F')) {
        !           297: 			my $pprefix='';
        !           298: 			if ($hash{'src_'.$frid}=~
        !           299: 			    /\.(problem|exam|quiz|assess|survey|form)$/) {
        !           300: 			    $pprefix=&astatus($frid);
        !           301: 			
        !           302: 			}
        !           303: 			if (defined($rows[$sofar])) {
        !           304: 			    $rows[$sofar].='&'.$pprefix.$frid;
        !           305: 			} else {
        !           306: 			    $rows[$sofar]=$pprefix.$frid;
        !           307: 			}
        !           308: 		    }
        !           309: 		}
        !           310: 	    }
        !           311: 	} else {
        !           312: 	    $sofar++;
        !           313: 	    if ($hash{'src_'.$rid}) {
        !           314: 		my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid});
        !           315: 		if (($brepriv eq '2') || ($brepriv eq 'F')) {
        !           316: 		    my $pprefix='';
        !           317: 		    if ($hash{'src_'.$rid}=~
        !           318: 			/\.(problem|exam|quiz|assess|survey|form)$/) {
        !           319: 			$pprefix=&astatus($rid);
        !           320: 		    }
        !           321: 		    if (defined($rows[$sofar])) {
        !           322: 			$rows[$sofar].='&'.$pprefix.$rid;
        !           323: 		    } else {
        !           324: 			$rows[$sofar]=$pprefix.$rid;
        !           325: 		    }
        !           326: 		}
        !           327: 	    }
        !           328: 	}
        !           329: 	
        !           330: 	if (defined($hash{'to_'.$rid})) {
        !           331: 	    my $mincond=1;
        !           332: 	    my $next='';
        !           333: 	    foreach (split(/\,/,$hash{'to_'.$rid})) {
        !           334: 		my $thiscond=
        !           335: 		    &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}});
        !           336: 		if ($thiscond>=$mincond) {
        !           337: 		    if ($next) {
        !           338: 			$next.=','.$_.':'.$thiscond;
        !           339: 		    } else {
        !           340: 			$next=$_.':'.$thiscond;
        !           341: 		    }
        !           342: 		    if ($thiscond>$mincond) { $mincond=$thiscond; }
        !           343: 		}
        !           344: 	    }
        !           345: 	    foreach (split(/\,/,$next)) {
        !           346: 		my ($linkid,$condval)=split(/\:/,$_);
        !           347: 		if ($condval>=$mincond) {
        !           348: 		    my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere);
        !           349: 		    if ($now>$further) { $further=$now; }
        !           350: 		}
        !           351: 	    }
        !           352: 	}
1.2       www       353:     }
                    354:     return $further;
                    355: }
                    356: 
                    357: # ================================================================ Main Handler
1.1       www       358: 
                    359: sub handler {
1.28    ! albertel  360:     my $r=shift;
1.2       www       361: 
                    362: 
                    363: # ------------------------------------------- Set document type for header only
                    364: 
1.28    ! albertel  365:     if ($r->header_only) {
        !           366: 	if ($ENV{'browser.mathml'}) {
        !           367: 	    $r->content_type('text/xml');
        !           368: 	} else {
        !           369: 	    $r->content_type('text/html');
        !           370: 	}
        !           371: 	$r->send_http_header;
        !           372: 	return OK;
        !           373:     }
        !           374:     my $requrl=$r->uri;
        !           375:     my $hashtied;
1.2       www       376: # ----------------------------------------------------------------- Tie db file
1.28    ! albertel  377:     my $fn;
        !           378:     if ($ENV{'request.course.fn'}) {
        !           379: 	$fn=$ENV{'request.course.fn'};
        !           380: 	if (-e "$fn.db") {
        !           381: 	    if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER,0640)) &&
        !           382: 		(tie(%parmhash,'GDBM_File',
        !           383: 		     $ENV{'request.course.fn'}.'_parms.db',
        !           384: 		     &GDBM_READER,0640))) {
        !           385: 		$hashtied=1;
        !           386: 	    }
        !           387: 	}
        !           388:     }
        !           389:     if (!$hashtied) {
        !           390: 	$ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
        !           391: 	return HTTP_NOT_ACCEPTABLE; 
        !           392:     }
        !           393: 
1.2       www       394: # ------------------------------------------------------------------- Hash tied
1.28    ! albertel  395: 
        !           396:     if ($ENV{'browser.mathml'}) {
        !           397: 	$r->content_type('text/xml');
        !           398:     } else {
        !           399: 	$r->content_type('text/html');
        !           400:     }
        !           401:     &Apache::loncommon::no_cache($r);
        !           402:     $r->send_http_header;
        !           403: 
        !           404:     my $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}};
        !           405:     my $lastres=$hash{'map_finish_/res/'.$ENV{'request.course.uri'}};
        !           406:     if (!(($firstres) && ($lastres))) {
        !           407: 	$r->print('<html><body>Coursemap undefined.</body></html>');
        !           408:     } else {
        !           409: 
1.2       www       410: # ----------------------------------------------------------------- Render page
1.10      www       411: # -------------------------------------------------------------- Set parameters
                    412: 
                    413: 
                    414: # ---------------------------- initialize coursedata and userdata for this user
1.28    ! albertel  415: 	undef %courseopt;
        !           416: 	undef %useropt;
1.10      www       417: 
1.28    ! albertel  418: 	my $uname=$ENV{'user.name'};
        !           419: 	my $udom=$ENV{'user.domain'};
        !           420: 	my $uhome=$ENV{'user.home'};
        !           421: 	my $cid=$ENV{'request.course.id'};
        !           422: 	my $chome=$ENV{'course.'.$cid.'.home'};
        !           423: 	my ($cdom,$cnum)=split(/\_/,$cid);
1.10      www       424: 
1.28    ! albertel  425: 	my $userprefix=$uname.'_'.$udom.'_';
1.10      www       426: 
1.28    ! albertel  427: 	unless ($uhome eq 'no_host') { 
1.10      www       428: # -------------------------------------------------------------- Get coursedata
1.28    ! albertel  429: 	    unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
        !           430: 		my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.
        !           431: 						 ':resourcedata',$chome);
        !           432: 		if ($reply!~/^error\:/) {
        !           433: 		    $courserdatas{$cid}=$reply;
        !           434: 		    $courserdatas{$cid.'.last_cache'}=time;
        !           435: 		}
        !           436: 	    }
        !           437: 	    foreach (split(/\&/,$courserdatas{$cid})) {
        !           438: 		my ($name,$value)=split(/\=/,$_);
        !           439: 		$courseopt{$userprefix.&Apache::lonnet::unescape($name)}=
        !           440: 		    &Apache::lonnet::unescape($value);
        !           441: 	    }
1.10      www       442: # --------------------------------------------------- Get userdata (if present)
1.28    ! albertel  443: 	    unless ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) {
        !           444: 		my $reply=&Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome);
        !           445: 		if ($reply!~/^error\:/) {
        !           446: 		    $userrdatas{$uname.'___'.$udom}=$reply;
        !           447: 		    $userrdatas{$uname.'___'.$udom.'.last_cache'}=time;
        !           448: 		}
        !           449: 	    }
        !           450: 	    foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) {
        !           451: 		my ($name,$value)=split(/\=/,$_);
        !           452: 		$useropt{$userprefix.&Apache::lonnet::unescape($name)}=
        !           453: 		    &Apache::lonnet::unescape($value);
        !           454: 	    }
        !           455: 	}
        !           456: 
        !           457: 	@rows=();
        !           458: 
        !           459: 	&tracetable(0,$firstres,'&'.$lastres.'&');
        !           460: 	if ($hash{'src_'.$lastres}) {
        !           461: 	    my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$lastres});
        !           462: 	    if (($brepriv eq '2') || ($brepriv eq 'F')) {
        !           463: 		$rows[$#rows+1]=''.$lastres;
        !           464: 	    }
        !           465: 	}
1.2       www       466: 
                    467: # ------------------------------------------------------------------ Page parms
                    468: 
1.28    ! albertel  469: 	my $j;
        !           470: 	my $i;
        !           471: 	my $lcm=1;
        !           472: 	my $contents=0;
1.2       www       473: 
                    474: # ---------------------------------------------- Go through table to get layout
                    475: 
1.28    ! albertel  476: 	for ($i=0;$i<=$#rows;$i++) {
        !           477: 	    if ($rows[$i]) {
        !           478: 		$contents++;
        !           479: 		my @colcont=split(/\&/,$rows[$i]);
        !           480: 		$lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
        !           481: 	    } 
        !           482: 	}
1.5       www       483: 
1.2       www       484: 
1.28    ! albertel  485: 	unless ($contents) {
        !           486: 	    $r->print('<html><body>Empty Map.</body></html>');
        !           487: 	} else {
1.10      www       488: 
1.2       www       489: # ------------------------------------------------------------------ Build page
                    490: 
1.28    ! albertel  491: 	    my $currenturl=$ENV{'form.postdata'};
        !           492: 	    $currenturl=~s/^http\:\/\///;
        !           493: 	    $currenturl=~s/^[^\/]+//;
1.13      www       494: 
1.2       www       495: # ---------------------------------------------------------------- Send headers
                    496: 
1.28    ! albertel  497: 	    my $date=localtime;
        !           498: 	    my $now=time;
1.21      www       499: # ----------------------------------------- Get email status and discussiontime
                    500: 
1.28    ! albertel  501: 	    my %emailstatus=&Apache::lonnet::dump('email_status');
        !           502: 	    my $logouttime=$emailstatus{'logout'};
        !           503: 	    my $courseleave=$emailstatus{'logout_'.$ENV{'request.course.id'}};
        !           504: 	    my $lastcheck=($courseleave>$logouttime?$courseleave:$logouttime);
        !           505: 
        !           506: 	    my %discussiontimes=&Apache::lonnet::dump('discussiontimes',
        !           507: 							  $cdom,$cnum);
        !           508: 
        !           509: 	    my %feedback=();
        !           510: 	    my %error=();
        !           511: 	    foreach my $msgid (split(/\&/,&Apache::lonnet::reply('keys:'.
        !           512: 								 $ENV{'user.domain'}.':'.
        !           513: 								 $ENV{'user.name'}.':nohist_email',
        !           514: 								 $ENV{'user.home'}))) {
        !           515: 		$msgid=&Apache::lonnet::unescape($msgid);
        !           516: 		my $plain=&Apache::lonnet::unescape(&Apache::lonnet::unescape($msgid));
        !           517: 		if ($plain=~/(Error|Feedback) \[([^\]]+)\]/) {
        !           518: 		    my ($what,$url)=($1,$2);
        !           519: 		    my %status=
        !           520: 			&Apache::lonnet::get('email_status',[$msgid]);
        !           521: 		    if ($status{$msgid}=~/^error\:/) { 
        !           522: 			$status{$msgid}=''; 
        !           523: 		    }
        !           524: 			
        !           525: 		    if (($status{$msgid} eq 'new') || 
        !           526: 			(!$status{$msgid})) { 
        !           527: 			if ($what eq 'Error') {
        !           528: 			    $error{$url}.=','.$msgid; 
        !           529: 			} else {
        !           530: 			    $feedback{$url}.=','.$msgid;
        !           531: 			}
        !           532: 		    }
        !           533: 		}
        !           534: 	    }
1.22      www       535: # ----------------------------------------------------------- Start Page Output
1.28    ! albertel  536: 	    $r->print('<html><head><title>Navigate LON-CAPA Maps</title></head>');
        !           537: 	    $r->print('<body bgcolor="#FFFFFF"');
        !           538: 	    if (($currenturl=~/^\/res/) &&
        !           539: 		($currenturl!~/^\/res\/adm/)) {
        !           540: 		$r->print(' onLoad="window.location.hash='."'curloc'".'"');
        !           541: 	    }
        !           542: 	    $r->print('><script>window.focus();</script>'.
        !           543: 		      '<img align=right src=/adm/lonIcons/lonlogos.gif>'.
        !           544: 		      '<h1>Navigate Course Map</h1>'.
        !           545: 		      "<h3>$date</h3>");
        !           546: 	    $r->rflush();
        !           547: 	    $r->print('<img src="/adm/lonMisc/chat.gif"> New discussion since '.
        !           548: 		      localtime($lastcheck).
        !           549: 		      '<br><img src="/adm/lonMisc/feedback.gif"> New message (click to open)<p>'); 
        !           550: 	    if (($currenturl=~/^\/res/) &&
        !           551: 		($currenturl!~/^\/res\/adm/)) {
        !           552: 		$r->print('<a href="#curloc">Current Location</a><p>');
        !           553: 	    }
1.13      www       554: # ----------------------------------------------------- The little content list
1.28    ! albertel  555: 	    for ($i=0;$i<=$#rows;$i++) {
        !           556: 		if ($rows[$i]) {
        !           557: 		    my @colcont=split(/\&/,$rows[$i]);
        !           558: 		    my $avespan=$lcm/($#colcont+1);
        !           559: 		    for ($j=0;$j<=$#colcont;$j++) {
        !           560: 			my $rid=$colcont[$j];
        !           561: 			if ($rid=~/^h(.+)/) {
        !           562: 			    $rid=$1;
        !           563: 			    $r->print('&nbsp;&nbsp;&nbsp;<a href="#'.
        !           564: 				      $rid.'">'.$hash{'title_'.$rid}.
        !           565: 				      '</a><br>');
        !           566: 			}
        !           567: 		    }
        !           568: 		}
        !           569: 	    }
1.2       www       570: # ----------------------------------------------------------------- Start table
1.28    ! albertel  571: 	    $r->print('<hr><table cols="'.$lcm.'" border="0">');
        !           572: 	    for ($i=0;$i<=$#rows;$i++) {
        !           573: 		if ($rows[$i]) {
        !           574: 		    $r->print("\n<tr>");
        !           575: 		    my @colcont=split(/\&/,$rows[$i]);
        !           576: 		    my $avespan=$lcm/($#colcont+1);
        !           577: 		    for ($j=0;$j<=$#colcont;$j++) {
        !           578: 			my $rid=$colcont[$j];
        !           579: 			my $add='<td>&nbsp;&nbsp;';
        !           580: 			my $adde='</td>';
        !           581: 			my $hwk='<font color="#223322">';
        !           582: 			my $hwke='</font>';
        !           583: 			if ($rid=~/^h(.+)/) {
        !           584: 			    $rid=$1;
        !           585: 			    $add='<th bgcolor="#AAFF55"><a name="'.$rid.'">';
        !           586: 			    $adde='</th>';
        !           587: 			}
        !           588: 			if ($rid=~/^p(\d)(\d)\"([\w\: \(\)\/\,]*)\"(.+)/) {
        !           589: 			    # sub astatus describes what code/tcode mean
        !           590: 			    my $code=$1;
        !           591: 			    my $tcode=$2;
        !           592: 			    my $ctext=$3;
        !           593: 			    $rid=$4;
        !           594: 			    if ($tcode eq '1') {
        !           595: 				$add='<td bgcolor="#AAAAAA">';
        !           596: 			    }
        !           597: 			    if ($code eq '3') {
        !           598: 				$add='<td bgcolor="#AAFFAA">';
        !           599: 			    } else {
        !           600: 				$add='<td bgcolor="#FFAAAA">';
        !           601: 				if ($tcode eq '2') {
        !           602: 				    $add='<td bgcolor="#FFFFAA">';
        !           603: 				}
        !           604: 				if ($tcode eq '4') {
        !           605: 				    $add='<td bgcolor="#FFFF33">';
        !           606: 				    $adde='</td>';
        !           607: 				}
        !           608: 			    }
        !           609: 			    $hwk='<font color="#888811"><b>';
        !           610: 			    $hwke='</b></font>';
        !           611: 			    if ($code eq '1') {
        !           612: 				$hwke='</b> ('.$ctext.')</font>';
        !           613: 			    }
        !           614: 			    if ($code eq '2') {
        !           615: 				$hwk='<font color="#992222"><b>';
        !           616: 				$hwke='</b> ('.$ctext.')</font>';
        !           617: 			    }
        !           618: 			    if ($code eq '3') {
        !           619: 				$hwk='<font color="#229922"><b>';
        !           620: 				$hwke='</b> ('.$ctext.')</font>';
        !           621: 			    }
        !           622: 			}
        !           623: 			if ($hash{'src_'.$rid} eq $currenturl) {
        !           624: 			    $add=$add.'<a name="curloc"></a>'.
        !           625: 				'<font color=red size=+2><b>&gt; </b></font>';
        !           626: 			    $adde=
        !           627: 				'<font color=red size=+2><b> &lt;</b></font>'.$adde;
        !           628: 			}
        !           629: 			my $src=
        !           630: 			    &Apache::lonnet::declutter($hash{'src_'.$rid});
        !           631: 			$rid=~/^(\d+)\.(\d+)$/;
        !           632: 			my $symb=
        !           633: 			    &Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.$src;
        !           634: 			if ($discussiontimes{$symb}>$lastcheck) {
        !           635: 			    $adde=
        !           636: 				'<img border=0 src="/adm/lonMisc/chat.gif">'.
        !           637: 				    $adde;
        !           638: 			}
        !           639: 			if ($error{$src}) {
        !           640: 			    foreach (split(/\,/,$error{$src})) {
        !           641: 				if ($_) {
        !           642: 				    $adde=
        !           643: 					'&nbsp;<a href="/adm/email?display='.
        !           644: 					    &Apache::lonnet::escape($_).
        !           645: 						'"><img src="/adm/lonMisc/bomb.gif" border=0></a>'
        !           646: 						    .$adde;
        !           647: 				}
        !           648: 			    }
        !           649: 			}
        !           650: 			if ($feedback{$src}) {
        !           651: 			    foreach (split(/\,/,$feedback{$src})) {
        !           652: 				if ($_) {
        !           653: 				    $adde=
        !           654: 					'&nbsp;<a href="/adm/email?display='.
        !           655: 					    &Apache::lonnet::escape($_).
        !           656: 						'"><img src="/adm/lonMisc/feedback.gif" border=0></a>'
        !           657: 						    .$adde;
        !           658: 				}
        !           659: 			    }
        !           660: 			}
        !           661: 			$r->print($add.'<a href="'.$hash{'src_'.$rid}.
        !           662: 				  '">'.$hwk.
        !           663: 				  $hash{'title_'.$rid}.$hwke.'</a>'.$adde);
        !           664: 		    }
        !           665: 		    $r->print('</tr>');
        !           666: 		}
        !           667: 	    }
        !           668: 	    $r->print("\n</table>");
        !           669: 	    $r->print('</body></html>');
1.2       www       670: # -------------------------------------------------------------------- End page
1.28    ! albertel  671: 	}                  
1.2       www       672: # ------------------------------------------------------------- End render page
1.28    ! albertel  673:     }
1.2       www       674: # ------------------------------------------------------------------ Untie hash
1.28    ! albertel  675:     unless (untie(%hash)) {
        !           676: 	&Apache::lonnet::logthis("<font color=blue>WARNING: ".
        !           677: 				 "Could not untie coursemap $fn (browse).</font>"); 
        !           678:     }
        !           679:     unless (untie(%parmhash)) {
        !           680: 	&Apache::lonnet::logthis("<font color=blue>WARNING: ".
        !           681: 				 "Could not untie parmhash (browse).</font>"); 
        !           682:     }
        !           683:     return OK;
1.2       www       684: }
1.1       www       685: 
                    686: 1;
                    687: __END__
1.2       www       688: 
                    689: 
                    690: 
                    691: 
                    692: 
                    693: 
                    694: 

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