Annotation of rat/lonpage.pm, revision 1.144
1.1 www 1: # The LearningOnline Network with CAPA
2: # Page Handler
3: #
1.144 ! raeburn 4: # $Id: lonpage.pm,v 1.143 2023/09/10 18:12:55 raeburn Exp $
1.29 www 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: #
1.30 harris41 28: ###
1.1 www 29:
1.88 jms 30:
31:
32:
1.1 www 33: package Apache::lonpage;
34:
35: use strict;
36: use Apache::Constants qw(:common :http);
1.70 albertel 37: use Apache::lonnet;
1.30 harris41 38: use Apache::loncommon();
1.102 raeburn 39: use Apache::lonhtmlcommon;
1.21 www 40: use Apache::lonxml();
1.57 raeburn 41: use Apache::lonlocal;
1.49 www 42: use Apache::lonmenu;
1.111 raeburn 43: use Apache::lonhomework;
1.112 raeburn 44: use Apache::lonparmset;
1.125 raeburn 45: use Apache::lonenc();
1.6 www 46: use HTML::TokeParser;
1.135 raeburn 47: use HTML::Entities();
1.1 www 48: use GDBM_File;
1.39 www 49: use Apache::lonsequence;
1.75 www 50: use lib '/home/httpd/lib/perl/';
51: use LONCAPA;
52:
1.1 www 53:
1.2 www 54: # -------------------------------------------------------------- Module Globals
55: my %hash;
56: my @rows;
1.6 www 57:
58: # ------------------------------------------------------------------ Euclid gcd
59:
60: sub euclid {
61: my ($e,$f)=@_;
62: my $a; my $b; my $r;
63: if ($e>$f) { $b=$e; $r=$f; } else { $r=$e; $b=$f; }
64: while ($r!=0) {
65: $a=$b; $b=$r;
66: $r=$a%$b;
67: }
68: return $b;
69: }
1.2 www 70:
71: # ------------------------------------------------------------ Build page table
72:
73: sub tracetable {
74: my ($sofar,$rid,$beenhere)=@_;
75: my $further=$sofar;
1.57 raeburn 76: my $randomout=0;
1.70 albertel 77: unless ($env{'request.role.adv'}) {
1.57 raeburn 78: $randomout = $hash{'randomout_'.$rid};
79: }
1.2 www 80: unless ($beenhere=~/\&$rid\&/) {
1.57 raeburn 81: $beenhere.=$rid.'&';
82: unless ($randomout) {
83: if (defined($hash{'is_map_'.$rid})) {
84: if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) &&
85: (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) {
86: my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}};
87: $sofar=
88: &tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},
1.87 albertel 89: '&'.$frid.$beenhere);
1.57 raeburn 90: $sofar++;
91: if ($hash{'src_'.$frid}) {
92: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid});
93: if (($brepriv eq '2') || ($brepriv eq 'F')) {
94: if (defined($rows[$sofar])) {
95: $rows[$sofar].='&'.$frid;
96: } else {
97: $rows[$sofar]=$frid;
98: }
99: }
100: }
101: }
102: } else {
103: $sofar++;
104: if ($hash{'src_'.$rid}) {
1.140 raeburn 105: my ($mapid,$resid)=split(/\./,$rid);
106: my $symb = &Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$rid});
107: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid},$symb);
1.57 raeburn 108: if (($brepriv eq '2') || ($brepriv eq 'F')) {
109: if (defined($rows[$sofar])) {
110: $rows[$sofar].='&'.$rid;
111: } else {
112: $rows[$sofar]=$rid;
113: }
114: }
115: }
116: }
117: }
118:
119: if (defined($hash{'to_'.$rid})) {
120: my $mincond=1;
121: my $next='';
122: foreach (split(/\,/,$hash{'to_'.$rid})) {
123: my $thiscond=
1.11 www 124: &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}});
1.57 raeburn 125: if ($thiscond>=$mincond) {
126: if ($next) {
127: $next.=','.$_.':'.$thiscond;
128: } else {
129: $next=$_.':'.$thiscond;
130: }
131: if ($thiscond>$mincond) { $mincond=$thiscond; }
132: }
133: }
134: foreach (split(/\,/,$next)) {
135: my ($linkid,$condval)=split(/\:/,$_);
136: if ($condval>=$mincond) {
137: my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere);
138: if ($now>$further) { $further=$now; }
139: }
140: }
141: }
1.2 www 142: }
143: return $further;
144: }
145:
1.1 www 146: # ================================================================ Main Handler
147:
148: sub handler {
149: my $r=shift;
150:
1.3 www 151: # ------------------------------------------- Set document type for header only
1.1 www 152:
1.3 www 153: if ($r->header_only) {
1.70 albertel 154: if ($env{'browser.mathml'}) {
1.53 www 155: &Apache::loncommon::content_type($r,'text/xml');
1.3 www 156: } else {
1.53 www 157: &Apache::loncommon::content_type($r,'text/html');
1.3 www 158: }
159: $r->send_http_header;
160: return OK;
161: }
1.43 sakharuk 162:
1.39 www 163: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
164: ['forceselect','launch']);
1.43 sakharuk 165: my $number_of_columns = 1;
1.37 sakharuk 166: my $requrl=$r->uri;
1.70 albertel 167: my $target = $env{'form.grade_target'};
1.94 raeburn 168:
169: # Short term solution: define target as 'tex_answer' when retrieving answers
170: # for resources in a .page when generating printouts.
171: # A better long-term fix would be to modify the way problem rendering, and
172: # answer rendering are retrieved for individual resources when printing a .page,
173: # so rendered problem and answer are sequential for individual resources in
174: # the .page
175: #
176: if ($target eq 'answer') {
177: if ($env{'form.answer_output_mode'} eq 'tex') {
178: $target = 'tex_answer';
179: }
180: }
1.55 www 181: # &Apache::lonnet::logthis("Got a target of $target");
1.54 albertel 182: if ($target eq 'meta') {
183: &Apache::loncommon::content_type($r,'text/html');
184: $r->send_http_header;
185: return OK;
186: }
1.1 www 187: # ----------------------------------------------------------------- Tie db file
1.70 albertel 188: if (($env{'request.course.fn'}) && (!$env{'form.forceselect'})) {
189: my $fn=$env{'request.course.fn'};
1.1 www 190: if (-e "$fn.db") {
1.119 raeburn 191: my %buttonshide;
1.122 raeburn 192: my $hostname = $r->hostname();
1.135 raeburn 193: my $lonhost = $r->dir_config('lonHostID');
194: my $ip = &Apache::lonnet::get_host_ip($lonhost);
1.44 albertel 195: if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) {
1.1 www 196: # ------------------------------------------------------------------- Hash tied
197: my $firstres=$hash{'map_start_'.$requrl};
198: my $lastres=$hash{'map_finish_'.$requrl};
199: if (($firstres) && ($lastres)) {
1.111 raeburn 200: # ------------------------------------------------------------- Countdown Timer
201: my $now = time;
1.112 raeburn 202: my ($pagefirstaccess,%hastimeleft,%countdowndisp,%donebutton,
1.114 raeburn 203: %donebtnextra,%buttonbytime,$donetime,$symbtosetdone);
1.111 raeburn 204: my ($pagesymb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
1.114 raeburn 205: unless ($pagesymb) {
206: $pagesymb=&Apache::lonnet::symbread($requrl);
207: }
1.113 musolffc 208: if ($pagesymb && ($courseid ne '') && ($domain ne '') && ($name ne '')) {
1.111 raeburn 209: my %times=&Apache::lonnet::get('firstaccesstimes',
210: [$courseid."\0".$pagesymb],
211: $domain,$name);
212: if ($times{$courseid."\0".$pagesymb} =~ /^\d+$/) {
213: $pagefirstaccess = $times{$courseid."\0".$pagesymb};
1.112 raeburn 214: if ($pagefirstaccess && $env{'form.LC_interval_done'} eq 'true') {
215: $donetime = $now - $pagefirstaccess;
216: }
1.111 raeburn 217: }
218: }
1.112 raeburn 219:
1.1 www 220: # ----------------------------------------------------------------- Render page
221:
1.3 www 222: @rows=();
1.2 www 223:
1.45 www 224: &tracetable(0,$firstres,'&');
1.2 www 225:
1.9 www 226: # ------------------------------------------------------------ Add to symb list
227:
1.2 www 228: my $i;
1.9 www 229: my %symbhash=();
230: for ($i=0;$i<=$#rows;$i++) {
231: if ($rows[$i]) {
232: my @colcont=split(/\&/,$rows[$i]);
1.73 albertel 233: foreach my $rid (@colcont) {
234: my ($mapid,$resid)=split(/\./,$rid);
235: $symbhash{$hash{'src_'.$rid}}=
236: [$hash{'src_'.$rid},$resid];
1.112 raeburn 237: if (($donetime) && ($symbtosetdone eq '')) {
238: my $src = $hash{'src_'.$rid};
239: if ($hash{'encrypted_'.$rid}) {
240: $src=&Apache::lonenc::encrypted($src);
241: }
242: my ($mapid,$resid)=split(/\./,$rid);
243: my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$src);
244: if ($src =~ /$LONCAPA::assess_re/) {
245: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
246: if (@interval > 1) {
1.114 raeburn 247: if (($interval[1] eq 'map') && ($pagefirstaccess)) {
248: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
249: if ($timelimit) {
250: if ($pagefirstaccess + $timelimit > $now) {
251: $symbtosetdone = $symb;
252: }
1.112 raeburn 253: }
254: }
255: }
256: }
257: }
1.30 harris41 258: }
1.9 www 259: }
260: }
261: &Apache::lonnet::symblist($requrl,%symbhash);
262:
263: # ------------------------------------------------------------------ Page parms
264:
1.4 www 265: my $j;
1.6 www 266: my $lcm=1;
267: my $contents=0;
1.7 www 268: my $nforms=0;
1.96 raeburn 269: my $nuploads=0;
1.110 raeburn 270: my $ntimers=0;
1.143 raeburn 271: my $hasnumresp;
1.96 raeburn 272: my %turninpaths;
273: my %multiresps;
274: my $turninparent;
1.6 www 275:
276: my %ssibody=();
277: my %ssibgcolor=();
278: my %ssitext=();
279: my %ssilink=();
280: my %ssivlink=();
281: my %ssialink=();
1.139 raeburn 282: my %cssrefs=();
283: my %httpref=();
1.14 www 284:
1.6 www 285: my %cellemb=();
1.99 raeburn 286: my %cellexternal=();
1.3 www 287:
1.7 www 288: my $allscript='';
289: my $allmeta='';
290:
291: my $isxml=0;
292: my $xmlheader='';
293: my $xmlbody='';
294:
1.112 raeburn 295: # ---------------------------------------------------------- Handle Done button
296:
297: # Set the event timer to zero if the "done button" was clicked.
298: if ($donetime && $symbtosetdone) {
299: &Apache::lonparmset::storeparm_by_symb_inner($symbtosetdone,'0_interval',
300: 2,$donetime,'date_interval',
301: $name,$domain);
302: undef($env{'form.LC_interval_done'});
303: }
304:
1.3 www 305: # --------------------------------------------- Get SSI output, post parameters
306:
1.2 www 307: for ($i=0;$i<=$#rows;$i++) {
1.4 www 308: if ($rows[$i]) {
1.6 www 309: $contents++;
1.3 www 310: my @colcont=split(/\&/,$rows[$i]);
1.6 www 311: $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
1.30 harris41 312: foreach (@colcont) {
1.3 www 313: my $src=$hash{'src_'.$_};
1.120 raeburn 314: my $plainsrc = $src;
1.135 raeburn 315: my $anchor;
1.134 raeburn 316: if ($hash{'ext_'.$_} eq 'true:') {
317: $cellexternal{$_}=($hash{'ext_'.$_} eq 'true:');
318: $src =~ s{^/ext/}{http://};
319: $src =~ s{http://https://}{https://};
1.135 raeburn 320: if ($src =~ /(\#[^#]+)$/) {
321: $anchor = $1;
322: $src =~ s/\#[^#]+$//;
323: }
1.134 raeburn 324: }
1.135 raeburn 325: my $unencsrc = $src;
1.99 raeburn 326: my ($extension)=($src=~/\.(\w+)$/);
1.61 albertel 327: if ($hash{'encrypted_'.$_}) {
328: $src=&Apache::lonenc::encrypted($src);
329: }
1.119 raeburn 330: my ($mapid,$resid)=split(/\./,$_);
1.134 raeburn 331: my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$plainsrc);
1.119 raeburn 332: unless ($env{'request.role.adv'}) {
333: $buttonshide{$symb} = &Apache::lonnet::EXT("resource.0.buttonshide",$symb);
334: }
1.61 albertel 335: $cellemb{$_}=
336: &Apache::loncommon::fileembstyle($extension);
1.99 raeburn 337: if ($cellexternal{$_}) {
1.134 raeburn 338: if (($target eq 'tex') || ($target eq 'tex_answer')) {
1.135 raeburn 339: my $shown = $src.$anchor;
340: if (($hash{'encrypted_'.$_}) && (!$env{'request.role.adv'})) {
1.134 raeburn 341: $shown = &mt('URL not shown (encrypted)');
342: }
343: my $title=&Apache::lonnet::gettitle($symb);
344: $title = &Apache::lonxml::latex_special_symbols($title);
1.135 raeburn 345: $shown = &Apache::lonxml::latex_special_symbols($shown);
1.134 raeburn 346: $ssibody{$_} = ' \strut \\\\ \textit{'.$title.'} \strut \\\\ '.$shown.'\\\\';
347: } else {
348: my $showsrc = $src;
1.135 raeburn 349: my ($is_pdf,$title,$linktext);
350: if ($unencsrc =~ /\.pdf$/i) {
351: $is_pdf = 1;
352: }
1.134 raeburn 353: if (($hash{'encrypted_'.$_}) && ($symb)) {
1.135 raeburn 354: $title=&Apache::lonnet::gettitle(&Apache::lonenc::encrypted($symb));
355: } else {
356: $title=&Apache::lonnet::gettitle($symb);
1.134 raeburn 357: }
1.135 raeburn 358: if ($env{'browser.mobile'}) {
359: if ($is_pdf) {
360: $linktext = &mt('Link to PDF (for mobile devices)');
361: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
362: } else {
363: $linktext = &mt('Link to resource');
364: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
365: }
366: } else {
367: my $absolute = $env{'request.use_absolute'};
368: my $uselink = &Apache::loncommon::is_nonframeable($unencsrc,$absolute,$hostname,$ip);
369: if (($uselink) || (($ENV{'SERVER_PORT'} == 443) && ($unencsrc =~ m{^http://}))) {
370: $linktext = &mt('Link to resource');
371: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
372: } else {
373: if (($hash{'encrypted_'.$_}) && ($symb) && (!$env{'request.role.adv'})) {
374: $showsrc .= '?symb='.&Apache::lonenc::encrypted($symb);
375: } elsif ($anchor) {
1.138 raeburn 376: $showsrc .= $anchor;
1.135 raeburn 377: }
378: $ssibody{$_} = <<ENDEXT;
379: <iframe src="$showsrc" width="100%" height="300px">No iframe support!</iframe>
1.99 raeburn 380: ENDEXT
1.135 raeburn 381: }
382: }
1.99 raeburn 383: }
384: } elsif ($cellemb{$_} eq 'ssi') {
1.3 www 385: # --------------------------------------------------------- This is an SSI cell
1.126 raeburn 386: my $prefix='p_'.$_.'_';
387: my $idprefix= 'p_'.join('_',($mapid,$resid,''));
1.64 albertel 388: my %posthash=('request.prefix' => $prefix,
1.71 albertel 389: 'LONCAPA_INTERNAL_no_discussion' => 'true',
1.64 albertel 390: 'symb' => $symb);
1.94 raeburn 391: if (($env{'form.grade_target'} eq 'tex') ||
392: ($env{'form.answer_output_mode'} eq 'tex')) {
1.70 albertel 393: $posthash{'grade_target'}=$env{'form.grade_target'};
394: $posthash{'textwidth'}=$env{'form.textwidth'};
395: $posthash{'problem_split'}=$env{'form.problem_split'};
396: $posthash{'latex_type'}=$env{'form.latex_type'};
397: $posthash{'rndseed'}=$env{'form.rndseed'};
1.94 raeburn 398: $posthash{'answer_output_mode'} = $env{'form.answer_output_mode'};
1.56 sakharuk 399: }
1.127 raeburn 400: my $submitted=$env{'form.all_submit_pressed'};
1.72 albertel 401: if (!$submitted) {
402: foreach my $key (keys(%env)) {
1.127 raeburn 403: if ($key=~/^\Qform.$prefix\Esubmit_(.+)_pressed$/) {
404: if ($env{$key}) {
405: $submitted=1;
406: last;
407: }
1.72 albertel 408: }
1.127 raeburn 409: }
1.72 albertel 410: }
411: if ($submitted) {
412: foreach my $key (keys(%env)) {
1.127 raeburn 413: if ($key=~/^\Qform.$prefix\E/) {
1.72 albertel 414: my $name=$key;
1.127 raeburn 415: $name=~s/^\Qform.$prefix\E//;
1.72 albertel 416: $posthash{$name}=$env{$key};
1.127 raeburn 417: }
1.72 albertel 418: }
1.127 raeburn 419: if ($env{'form.all_submit_pressed'}) {
1.72 albertel 420: $posthash{'all_submit'}='yes';
421: }
1.129 raeburn 422: } elsif ($env{'form.'.$prefix.'markaccess'} eq 'yes') {
423: $posthash{'markaccess'} = $env{'form.'.$prefix.'markaccess'};
424: }
1.5 www 425: my $output=Apache::lonnet::ssi($src,%posthash);
1.77 albertel 426: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.94 raeburn 427: if (($target eq 'tex') || ($target eq 'tex_answer')) {
1.118 raeburn 428: $output =~ s/^([^&]+)\\begin\{document}//;
429: $output =~ s/\\end\{document}//;
1.92 foxr 430: # $output = '\parbox{\minipagewidth}{ '.$output.' }';
1.46 sakharuk 431: #some additional cleanup necessary for LateX (due to limitations of table environment
432: $output =~ s/(\\vskip\s*\d+mm)\s*(\\\\)+/$1/g;
433: }
1.107 raeburn 434: my $matheditor;
435: if ($output =~ /\Qjavascript:LC_mathedit_HWVAL_\E/) {
436: $matheditor = 'dragmath';
437: } elsif ($output =~ /LCmathField/) {
438: $matheditor = 'lcmath';
439: }
1.6 www 440: my $parser=HTML::TokeParser->new(\$output);
441: my $token;
1.12 www 442: my $thisdir=$src;
1.6 www 443: my $bodydef=0;
1.7 www 444: my $thisxml=0;
1.12 www 445: my @rlinks=();
1.139 raeburn 446: my @css_hrefs=();
1.7 www 447: if ($output=~/\?xml/) {
448: $isxml=1;
449: $thisxml=1;
450: $output=~
451: /((?:\<(?:\?xml|\!DOC|html)[^\>]*(?:\>|\>\]\>)\s*)+)\<body[^\>]*\>/si;
452: $xmlheader=$1;
453: }
1.12 www 454: while ($token=$parser->get_token) {
455: if ($token->[0] eq 'S') {
456: if ($token->[1] eq 'a') {
457: if ($token->[2]->{'href'}) {
458: $rlinks[$#rlinks+1]=
459: $token->[2]->{'href'};
460: }
461: } elsif ($token->[1] eq 'img') {
462: $rlinks[$#rlinks+1]=
463: $token->[2]->{'src'};
464: } elsif ($token->[1] eq 'embed') {
465: $rlinks[$#rlinks+1]=
466: $token->[2]->{'src'};
467: } elsif ($token->[1] eq 'base') {
468: $thisdir=$token->[2]->{'href'};
469: } elsif ($token->[1] eq 'body') {
1.7 www 470: $bodydef=1;
471: $ssibgcolor{$_}=$token->[2]->{'bgcolor'};
472: $ssitext{$_}=$token->[2]->{'text'};
473: $ssilink{$_}=$token->[2]->{'link'};
474: $ssivlink{$_}=$token->[2]->{'vlink'};
475: $ssialink{$_}=$token->[2]->{'alink'};
476: if ($thisxml) {
477: $xmlbody=$token->[4];
478: }
1.12 www 479: } elsif ($token->[1] eq 'meta') {
1.28 albertel 480: if ($token->[4] !~ m:/>$:) {
1.7 www 481: $allmeta.="\n".$token->[4].'</meta>';
1.28 albertel 482: } else {
483: $allmeta.="\n".$token->[4];
484: }
1.12 www 485: } elsif (($token->[1] eq 'script') &&
486: ($bodydef==0)) {
1.7 www 487: $allscript.="\n\n"
488: .$parser->get_text('/script');
1.139 raeburn 489: } elsif (($token->[1] eq 'link') &&
490: ($bodydef==0)) {
491: if (($token->[2]->{'href'} !~ m{^/adm/}) &&
492: ($token->[2]->{'rel'} eq 'stylesheet')) {
493: $css_hrefs[$#css_hrefs+1]=
494: $token->[2]->{'href'};
495:
496: }
1.6 www 497: }
1.12 www 498: }
499: }
1.6 www 500: if ($output=~/\<body[^\>]*\>(.*)/si) {
501: $output=$1;
502: }
503: $output=~s/\<\/body\>.*//si;
1.7 www 504: if ($output=~/\<form/si) {
1.110 raeburn 505: my $hastimer;
1.7 www 506: $nforms++;
507: $output=~s/\<form[^\>]*\>//gsi;
508: $output=~s/\<\/form[^\>]*\>//gsi;
1.96 raeburn 509: if ($output=~/\<input[^\>]+name\s*=\s*[\'\"]*HWFILE/) {
510: $nuploads++;
511: }
1.110 raeburn 512: if ($output=~/\<input[^\>]+name\s*=\s*[\'\"]*accessbutton/) {
513: $ntimers++;
514: $hastimer = 1;
515: }
1.143 raeburn 516: unless ($hasnumresp) {
1.144 ! raeburn 517: if ($output=~/\<input[^\>]+class\s*=\s*['"]*[^'">]*LC_numresponse_text\W/) {
1.143 raeburn 518: $hasnumresp = 1;
519: }
520: }
1.17 www 521: $output=~
1.80 albertel 522: s/\<((?:input|select|button|textarea)[^\>]+)name\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 name="$prefix$2" $3\>/gsi;
1.101 raeburn 523: $output=~
524: s/\<((?:input|select|button|textarea)[^\>]+)id\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 id="$idprefix$2" $3\>/gsi;
1.123 raeburn 525: $output=~
1.124 raeburn 526: s/(\Qthis.form.elements['\E)(HW(?:VAL|CHK)_[^']+\'\]\.(?:value=\'|checked))/$1$prefix$2/gsi;
1.110 raeburn 527: if ($hastimer) {
528: $output=~
529: s/\<(input[^\>]+name=\Q"$prefix\Eaccessbutton"[^\>]+)(?:\Qdocument.markaccess.submit();\E)([^\>]*)\>/\<$1pageTimer(this.form,'$prefix')$2\>/gsi;
530: $output=~ s/\<(input[^\>]+name=\Q"$prefix\Emarkaccess"[^\>]+value=["'])(?:yes)(['"][^\>]*)\>/\<$1$2\>/gsi;
531: }
1.107 raeburn 532: if ($matheditor eq 'dragmath') {
533: $output=~
534: s/(\Qjavascript:LC_mathedit_\E)(HWVAL_)([^'"]+?)(\(['"]*)(\QHWVAL_\E\3['"]\)\;void\(0\)\;)/$1$idprefix$2$3$4$idprefix$5/g;
535: $output=~
536: s/(function\s+LC_mathedit_)(HWVAL_)([^'"]+?)(\s+\(LCtextline\))/$1$idprefix$2$3$4/g;
537: } elsif ($matheditor eq 'lcmath') {
538: $output=~
539: s/(var\s+LCmathField\s+=\s+document\.getElementById\(['"])([^'"]+?)(['"]\)\;)/$1$idprefix$2$3/g;
540: }
1.105 raeburn 541: $output=~
542: s/(\Q<div id="msg_\E)(\Qsubmit_\E)([^"]*)(\Q" style="display:none">\E)/<input type="hidden" name="$prefix$2$3_pressed" id="$idprefix$2$3_pressed" value="" \/>$1$idprefix$2$3$4/g;
543: $output=~
544: s/(\Q<td class="LC_status_\E)(\Qsubmit_\E)([^\"]*)(\s*[^\"]*"\>)/$1$idprefix$2$3$4/g;
1.96 raeburn 545: if ($nuploads) {
546: ($turninpaths{$prefix},$multiresps{$prefix}) =
547: &Apache::loncommon::get_turnedin_filepath($symb,$env{'user.name'},$env{'user.domain'});
548: if ($turninparent eq '') {
549: $turninparent = $turninpaths{$prefix};
550: $turninparent =~ s{(/[^/]+)$}{};
551: }
552: }
1.95 raeburn 553: $output=~
554: s/\<((?:input|select)[^\>]+\Qjavascript:setSubmittedPart\E)\(\s*[\'\"]([^\'\"]+)[\'\"]*\s*\)/\<$1('$2','$prefix')/gsi;
1.108 raeburn 555: $output=~
556: s/\<(input[^\>]+\Qonfocus=\"javascript:disableAutoComplete\E)\(\'([^\']+)\'\)(;\")/\<$1('$idprefix$2')$3/gsi;
1.111 raeburn 557: unless ($hastimer) {
1.120 raeburn 558: if ($plainsrc =~ /$LONCAPA::assess_re/) {
1.111 raeburn 559: %Apache::lonhomework::history =
560: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
561: my $type = 'problem';
1.120 raeburn 562: if ($extension eq 'task') {
1.111 raeburn 563: $type = 'Task';
564: }
565: my ($status,$accessmsg,$slot_name,$slot) =
1.117 raeburn 566: &Apache::lonhomework::check_slot_access('0',$type,$symb);
1.111 raeburn 567: undef(%Apache::lonhomework::history);
568: my $probstatus = &Apache::lonnet::EXT("resource.0.problemstatus",$symb);
569: if (($status eq 'CAN_ANSWER') || (($status eq 'CANNOT_ANSWER') &&
1.114 raeburn 570: (($probstatus eq 'no') || ($probstatus eq 'no_feedback_ever'))) ||
571: (($status eq 'NOT_YET_VIEWED') && ($posthash{'markaccess'} eq 'yes'))) {
1.111 raeburn 572: my ($slothastime,$timerhastime);
573: if ($slot_name ne '') {
574: if (ref($slot) eq 'HASH') {
575: if (($slot->{'starttime'} < $now) &&
576: ($slot->{'endtime'} > $now)) {
577: $slothastime = $now - $slot->{'endtime'};
578: }
579: }
580: }
581: my $duedate = &Apache::lonnet::EXT("resource.0.duedate",$symb);
582: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
583: if (@interval > 1) {
1.114 raeburn 584: my $first_access;
1.115 raeburn 585: if ($interval[1] eq 'map') {
586: my $ignorecache;
587: if ($env{'form.'.$prefix.'markaccess'} eq 'yes') {
588: $ignorecache = 1;
1.114 raeburn 589: }
1.115 raeburn 590: $first_access=&Apache::lonnet::get_first_access($interval[1],undef,$pagesymb,$ignorecache);
591: if (($first_access) && (!$pagefirstaccess)) {
592: $pagefirstaccess = $first_access;
1.114 raeburn 593: }
1.115 raeburn 594: } else {
595: $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
596: }
597: if ($first_access > 0) {
1.114 raeburn 598: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1.115 raeburn 599: if ($timelimit) {
600: my $timeremains = $timelimit + $first_access - $now;
601: if ($timeremains > 0) {
602: $timerhastime = $timeremains;
603: }
1.111 raeburn 604: }
605: }
606: }
607: if (($duedate && $duedate > $now) ||
608: (!$duedate && $timerhastime > 0) ||
609: ($slot_name ne '' && $slothastime)) {
610: if ((@interval > 1 && $timerhastime) ||
611: ($type eq 'Task' && $slothastime)) {
612: $countdowndisp{$symb} = 'inline';
613: if ((@interval > 1) && ($timerhastime)) {
614: $hastimeleft{$symb} = $timerhastime;
1.112 raeburn 615: if ($pagefirstaccess) {
1.114 raeburn 616: my ($timelimit,$usesdone,$donebuttontext,$proctor,$secret);
617: ($timelimit,my $donesuffix) = split(/_/,$interval[0],2);
618: if ($donesuffix =~ /^done\:([^\:]+)\:(.*)$/) {
619: $usesdone = 'done';
620: $donebuttontext = $1;
621: (undef,$proctor,$secret) = split(/_/,$2);
622: } elsif ($donesuffix =~ /^done(|_.+)$/) {
623: $donebuttontext = &mt('Done');
624: ($usesdone,$proctor,$secret) = split(/_/,$donesuffix);
625: }
626: if ($usesdone eq 'done') {
627: $donebutton{$symb} = $timelimit;
628: push(@{$buttonbytime{$timelimit}},$symb);
629: $donebtnextra{$symb} = {
630: text => $donebuttontext,
631: proctor => $proctor,
632: secret => $secret,
633: type => $interval[1],
634: };
635: }
1.112 raeburn 636: }
1.111 raeburn 637: } else {
638: $hastimeleft{$symb} = $slothastime;
639: }
640: } else {
641: $hastimeleft{$symb} = $duedate - $now;
642: $countdowndisp{$symb} = 'none';
643: }
1.112 raeburn 644: unless ($donebutton{$symb}) {
1.114 raeburn 645: $donebutton{$symb} = 0;
1.112 raeburn 646: }
1.111 raeburn 647: }
648: }
649: }
650: }
1.7 www 651: }
1.12 www 652: $thisdir=~s/\/[^\/]*$//;
1.30 harris41 653: foreach (@rlinks) {
1.91 raeburn 654: unless (($_=~/^https?\:\/\//i) ||
1.31 albertel 655: ($_=~/^\//) ||
656: ($_=~/^javascript:/i) ||
657: ($_=~/^mailto:/i) ||
658: ($_=~/^\#/)) {
1.12 www 659: my $newlocation=
660: &Apache::lonnet::hreflocation($thisdir,$_);
661: $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
662: }
1.30 harris41 663: }
1.139 raeburn 664: foreach my $css_href (@css_hrefs) {
665: next if ($css_href eq '');
666: unless ($css_href =~ m{https?://}) {
667: my $proburl = &Apache::lonnet::clutter($plainsrc);
668: unless ($css_href =~ m{^/}) {
669: my $probdir = $proburl;
670: $probdir=~s/\/[^\/]*$//;
671: $css_href = &Apache::lonnet::hreflocation($probdir,$css_href);
672: }
673: if ($css_href =~ m{^/(res|uploaded)/}) {
674: unless (($env{'httpref.'.$css_href}) ||
675: ($httpref{'httpref.'.$css_href}) ||
676: (&Apache::lonnet::is_on_map($css_href))) {
677: if ($env{'httpref.'.$proburl}) {
678: $proburl = $env{'httpref.'.$proburl};
679: }
680: $httpref{'httpref.'.$css_href} = $proburl;
681: }
682: }
683: }
684: $cssrefs{$css_href} = 1;
685: }
1.24 www 686: # -------------------------------------------------- Deal with Applet codebases
687: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
1.5 www 688: $ssibody{$_}=$output;
1.3 www 689: # ---------------------------------------------------------------- End SSI cell
690: }
1.30 harris41 691: }
1.142 raeburn 692: }
1.2 www 693: }
1.6 www 694: unless ($contents) {
1.53 www 695: &Apache::loncommon::content_type($r,'text/html');
1.3 www 696: $r->send_http_header;
1.74 albertel 697: $r->print(&Apache::loncommon::start_page(undef,undef,
698: {'force_register' => 1,}));
1.59 raeburn 699: $r->print(&mt('This page is either empty or it only contains resources that are currently hidden').'. ');
1.74 albertel 700: $r->print('<br /><br />'.&mt('Please use the LON-CAPA navigation arrows to move to another item in the course').
701: &Apache::loncommon::end_page());
1.3 www 702: } else {
703: # ------------------------------------------------------------------ Build page
1.7 www 704:
705: # ---------------------------------------------------------------- Send headers
1.94 raeburn 706: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 707: if ($isxml) {
1.53 www 708: &Apache::loncommon::content_type($r,'text/xml');
1.37 sakharuk 709: } else {
1.53 www 710: &Apache::loncommon::content_type($r,'text/html');
1.37 sakharuk 711: }
1.74 albertel 712: $r->send_http_header;
1.7 www 713: # ------------------------------------------------------------------------ Head
1.37 sakharuk 714: if ($allscript) {
1.85 albertel 715: $allscript =
716: "\n".'<script type="text/javascript">'."\n".
717: $allscript.
718: "\n</script>\n";
1.37 sakharuk 719: }
1.96 raeburn 720: if (($nforms) && ($nuploads)) {
1.128 raeburn 721: $allscript .= &Apache::lonhtmlcommon::file_submissionchk_js(\%turninpaths,\%multiresps).
722: '<script type="text/javascript" '.
723: 'src="/res/adm/includes/file_upload.js"></script>';
1.96 raeburn 724: }
1.101 raeburn 725: if (($nforms) && (&Apache::lonhtmlcommon::htmlareabrowser())) {
726: my %textarea_args = (
727: dragmath => 'math',
728: );
729: $allscript .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
730: }
1.110 raeburn 731: if ($ntimers) {
732: $allscript .= '<script type="text/javascript">'."\n".
733: '// <![CDATA['."\n".
734: 'function pageTimer(form,prefix) {'."\n".
735: " form.elements[prefix+'markaccess'].value = 'yes';\n".
736: " form.submit();\n".
737: '}'."\n".
738: '// ]]>'.
739: "\n</script>\n";
740: }
1.133 raeburn 741: &Apache::lonhtmlcommon::clear_breadcrumb_tools();
1.111 raeburn 742: if (keys(%hastimeleft)) {
743: my (%uniquetimes,%uniquedisplays);
744: foreach my $item (values(%hastimeleft)) {
745: if (exists($uniquetimes{$item})) {
746: $uniquetimes{$item} ++;
747: } else {
748: $uniquetimes{$item} = 1;
749: }
750: }
1.114 raeburn 751: if (scalar(keys(%uniquetimes)) == 1) {
752: my (%uniquedisplays,%uniquedones,$currdisp,$donebuttontime,
753: $donebuttonextras);
1.111 raeburn 754: if (keys(%countdowndisp)) {
755: foreach my $item (values(%countdowndisp)) {
756: if (exists($uniquedisplays{$item})) {
757: $uniquedisplays{$item} ++;
758: } else {
759: $uniquedisplays{$item} = 1;
760: }
761: }
762: my @countdowndisplay = keys(%uniquedisplays);
763: if (scalar(@countdowndisplay) == 1) {
764: $currdisp = $countdowndisplay[0];
765: }
766: }
1.112 raeburn 767: if (keys(%donebutton)) {
768: foreach my $item (values(%donebutton)) {
769: if (exists($uniquedones{$item})) {
770: $uniquedones{$item} ++;
771: } else {
772: $uniquedones{$item} = 1;
773: }
774: }
775: my @donebuttons = sort { $ <=> $b } (keys(%uniquedones));
776: if (scalar(@donebuttons) == 1) {
777: if ($donebuttons[0]) {
778: $donebuttontime = $donebuttons[0];
1.114 raeburn 779: if (ref($buttonbytime{$donebuttontime}) eq 'ARRAY') {
780: $donebuttonextras = $donebtnextra{$buttonbytime{$donebuttontime}->[0]};
781: }
1.112 raeburn 782: }
783: }
784: }
1.114 raeburn 785: &add_countdown_timer($currdisp,$donebuttontime,$donebuttonextras);
1.111 raeburn 786: }
787: }
1.119 raeburn 788: my $pagebuttonshide;
789: if (keys(%buttonshide)) {
790: my %uniquebuttonhide;
791: foreach my $item (values(%buttonshide)) {
792: if (exists($uniquebuttonhide{$item})) {
793: $uniquebuttonhide{$item} ++;
794: } else {
795: $uniquebuttonhide{$item} = 1;
796: }
797: }
798: if (keys(%uniquebuttonhide) == 1) {
799: if (lc((keys(%uniquebuttonhide))[0]) eq 'yes') {
800: $pagebuttonshide = 'yes';
801: }
802: }
803: }
1.139 raeburn 804: if (keys(%cssrefs)) {
805: my $links;
806: if (keys(%cssrefs)) {
807: foreach my $css_href (keys(%cssrefs)) {
808: next unless ($css_href =~ m{^(/res/|/uploaded/|https?://)});
809: $links .= '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />'."\n";
810: }
811: }
812: if ($links) {
813: if (keys(%httpref)) {
814: &Apache::lonnet::appenv(\%httpref);
815: }
816: $allscript .= "\n$links";
817: }
818: }
1.7 www 819: # ------------------------------------------------------------------ Start body
1.85 albertel 820: $r->print(&Apache::loncommon::start_page(undef,$allscript,
1.74 albertel 821: {'force_register' => 1,
1.119 raeburn 822: 'bgcolor' => '#ffffff',
823: 'hide_buttons' => $pagebuttonshide}));
1.7 www 824: # ------------------------------------------------------------------ Start form
1.37 sakharuk 825: if ($nforms) {
1.96 raeburn 826: my $fmtag = '<form name="lonhomework" method="post" enctype="multipart/form-data"';
827: if ($nuploads) {
828: my $multi;
829: if ($nuploads > 1) {
830: $multi = 1;
831: }
832: $fmtag .= 'onsubmit="return file_submission_check(this,'."'$turninparent','$multi'".');"';
833: }
834: $fmtag .= ' action="'.
1.61 albertel 835: &Apache::lonenc::check_encrypt($requrl)
1.105 raeburn 836: .'" id="LC_page">';
1.96 raeburn 837: $r->print($fmtag);
1.40 sakharuk 838: }
1.94 raeburn 839: } elsif (($target eq 'tex') || ($target eq 'tex_answer')) {
1.92 foxr 840: # I think this is not needed as the header
841: # will be put in for each of the page parts
842: # by the londefdef.pm now that we are opening up
843: # the parts of a page.
844: #$r->print('\documentclass{article}
845: # \newcommand{\keephidden}[1]{}
846: # \usepackage[dvips]{graphicx}
847: # \usepackage{epsfig}
848: # \usepackage{calc}
849: # \usepackage{longtable}
850: # \begin{document}');
1.40 sakharuk 851: }
1.7 www 852: # ----------------------------------------------------------------- Start table
1.94 raeburn 853: if (($target eq 'tex') || ($target eq 'tex_answer')) {
1.92 foxr 854: # # $r->print('\begin{longtable}INSERTTHEHEADOFLONGTABLE\endfirsthead\endhead ');
1.43 sakharuk 855: if ($number_of_columns le $lcm) {$number_of_columns=$lcm;};
1.40 sakharuk 856: } else {
1.63 albertel 857: $r->print('<table width="100%" cols="'.$lcm.'" border="0">');
1.37 sakharuk 858: }
1.78 www 859: # generate rows
1.5 www 860: for ($i=0;$i<=$#rows;$i++) {
861: if ($rows[$i]) {
1.94 raeburn 862: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 863: $r->print("\n<tr>");
864: }
1.4 www 865: my @colcont=split(/\&/,$rows[$i]);
1.6 www 866: my $avespan=$lcm/($#colcont+1);
867: for ($j=0;$j<=$#colcont;$j++) {
868: my $rid=$colcont[$j];
1.122 raeburn 869: my $metainfo =&get_buttons(\%hash,$rid,\%buttonshide,$hostname).'<br />';
1.94 raeburn 870: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 871: $r->print('<td colspan="'.$avespan.'"');
872: }
1.99 raeburn 873: if (($cellemb{$rid} eq 'ssi') || ($cellexternal{$rid})) {
1.94 raeburn 874: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 875: if ($ssibgcolor{$rid}) {
876: $r->print(' bgcolor="'.
877: $ssibgcolor{$rid}.'"');
878: }
879: $r->print('>'.$metainfo.'<font');
880:
881: if ($ssitext{$rid}) {
882: $r->print(' text="'.$ssitext{$rid}.'"');
883: }
884: if ($ssilink{$rid}) {
885: $r->print(' link="'.$ssilink{$rid}.'"');
886: }
887: if ($ssitext{$rid}) {
888: $r->print(' vlink="'.$ssivlink{$rid}.'"');
889: }
890: if ($ssialink{$rid}) {
891: $r->print(' alink="'.$ssialink{$rid}.'"');
892: }
893: $r->print('>');
894: }
1.135 raeburn 895: $r->print($ssibody{$rid});
1.94 raeburn 896: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 897: $r->print('</font>');
1.41 www 898: }
1.70 albertel 899: if ($env{'course.'.
900: $env{'request.course.id'}.
1.41 www 901: '.pageseparators'} eq 'yes') {
1.94 raeburn 902: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.41 www 903: $r->print('<hr />');
1.77 albertel 904: }
1.37 sakharuk 905: }
906: } elsif ($cellemb{$rid} eq 'img') {
1.14 www 907: $r->print('>'.$metainfo.'<img src="'.
1.77 albertel 908: $hash{'src_'.$rid}.'" />');
1.13 www 909: } elsif ($cellemb{$rid} eq 'emb') {
1.14 www 910: $r->print('>'.$metainfo.'<embed src="'.
1.13 www 911: $hash{'src_'.$rid}.'"></embed>');
1.60 raeburn 912: } elsif (&Apache::lonnet::declutter($hash{'src_'.$rid}) !~/\.(sequence|page)$/) {
1.104 raeburn 913: $r->print($metainfo.'<b>'.$hash{'title_'.$rid}.'</b><br />');
914: unless ($cellemb{$rid} eq 'wrp') {
915: $r->print(&mt('It is recommended that you use an up-to-date virus scanner before handling this file.'));
916: }
917: $r->print('</p><p><table>'.
918: &Apache::londocs::entryline(0,
919: &mt("Click to download or use your browser's Save Link function"),
920: '/'.&Apache::lonnet::declutter($hash{'src_'.$rid})).
921: '</table></p><br />');
1.13 www 922: }
1.94 raeburn 923: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 924: $r->print('</td>');
1.40 sakharuk 925: } else {
1.92 foxr 926: # for (my $incol=1;$incol<=$avespan;$incol++) {
927: # $r->print(' & ');
928: # }
1.37 sakharuk 929: }
1.4 www 930: }
1.94 raeburn 931: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 932: $r->print('</tr>');
1.40 sakharuk 933: } else {
1.92 foxr 934: # $r->print('REMOVETHEHEADOFLONGTABLE\\\\');
1.37 sakharuk 935: }
1.5 www 936: }
1.4 www 937: }
1.94 raeburn 938: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 939: $r->print("\n</table>");
1.40 sakharuk 940: } else {
1.92 foxr 941: # $r->print('\end{longtable}\strut');
1.37 sakharuk 942: }
1.7 www 943: # ---------------------------------------------------------------- Submit, etc.
944: if ($nforms) {
1.106 raeburn 945: my $class;
946: if ($nforms > 1) {
947: $class = ' class="LC_hwk_submit"';
1.110 raeburn 948: if ($ntimers) {
949: $nforms = 1;
950: $class = '';
951: }
1.106 raeburn 952: }
1.7 www 953: $r->print(
1.103 bisitz 954: '<input name="all_submit" value="'.&mt('Submit All').'" type="'.
1.106 raeburn 955: (($nforms>1)?'submit':'hidden').'"'.$class.' id="all_submit" />'.
1.127 raeburn 956: '<input type="hidden" name="all_submit_pressed" '.
957: 'id="all_submit_pressed" value="" />'.
1.106 raeburn 958: '<div id="msg_all_submit" style="display:none">'.
959: &mt('Processing your submission ...').'</div></form>');
1.7 www 960: }
1.94 raeburn 961: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.143 raeburn 962: my $args = {'discussion' => 1};
963: if ($hasnumresp) {
964: $args->{'dashjs'} = 1;
965: }
966: $r->print(&Apache::loncommon::end_page($args));
1.40 sakharuk 967: } else {
968: $r->print('\end{document}'.$number_of_columns);
969: }
1.66 albertel 970: &Apache::lonnet::symblist($requrl,%symbhash);
1.69 albertel 971: my ($map,$id,$url)=&Apache::lonnet::decode_symb(&Apache::lonnet::symbread());
972: &Apache::lonnet::symblist($map,'last_known'=>[$url,$id]);
1.3 www 973: # -------------------------------------------------------------------- End page
974: }
1.1 www 975: # ------------------------------------------------------------- End render page
976: } else {
1.142 raeburn 977: if ($hash{'map_type_'.$hash{'map_pc_'.$requrl}} eq 'none') {
978: &Apache::loncommon::content_type($r,'text/html');
979: $r->send_http_header;
980: $r->print(&Apache::loncommon::start_page(undef,undef,
981: {'force_register' => 1,}));
982: my $crstype = &Apache::loncommon::course_type();
983: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
984: $r->print('<span class="LC_warning">'.&mt('Missing composite page file.').'</span><br />'.
985: &mt("You may want to use the $crstype Editor to remove this item."));
986: } else {
987: if ($crstype eq 'Placement') {
988: $r->print('<span class="LC_warning">'.&mt('Missing page').'</span>');
989: } else {
990: $r->print('<span class="LC_info">'.
991: &mt('This resource was unavailable when your '.lc($crstype).' session was loaded').'<br />'.
992: &mt("Please use 'Contents' to list items available in the $crstype.").'</span>');
993: }
994: }
995: $r->print(&Apache::loncommon::end_page());
996: } else {
997: &Apache::loncommon::content_type($r,'text/html');
998: $r->send_http_header;
999: &Apache::lonsequence::viewmap($r,$requrl);
1000: }
1.1 www 1001: }
1002: # ------------------------------------------------------------------ Untie hash
1003: unless (untie(%hash)) {
1004: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
1005: "Could not untie coursemap $fn (browse).</font>");
1006: }
1007: # -------------------------------------------------------------------- All done
1008: return OK;
1009: # ----------------------------------------------- Errors, hash could no be tied
1010: }
1011: }
1012: }
1.67 albertel 1013: &Apache::loncommon::content_type($r,'text/html');
1.39 www 1014: $r->send_http_header;
1015: &Apache::lonsequence::viewmap($r,$requrl);
1016: return OK;
1.1 www 1017: }
1018:
1.83 albertel 1019: sub get_buttons {
1.122 raeburn 1020: my ($hash,$rid,$buttonshide,$hostname) = @_;
1.83 albertel 1021:
1022: my ($mapid,$resid)=split(/\./,$rid);
1023: my $symb=&Apache::lonnet::encode_symb($hash->{'map_id_'.$mapid},
1024: $resid,
1025: $hash->{'src_'.$rid});
1.141 raeburn 1026: my ($aname,$shownsymb);
1.136 raeburn 1027: if (($hash->{'encrypted_'.$rid}) && (!$env{'request.role.adv'})) {
1028: $aname = 'LC_'.$rid;
1.141 raeburn 1029: $shownsymb = &Apache::lonenc::encrypted($symb);
1.136 raeburn 1030: } else {
1.141 raeburn 1031: $shownsymb = $symb;
1032: my $dispsymb = $symb;
1.138 raeburn 1033: if ($symb =~ /\#([^\#]+)$/) {
1034: my $escan = &escape('#');
1.141 raeburn 1035: $dispsymb =~ s/#([^\#]+)$/$escan$1/;
1.138 raeburn 1036: }
1.141 raeburn 1037: $aname = &escape($dispsymb);
1.136 raeburn 1038: }
1039: my $metainfo = '<a name="'.$aname.'"></a>';
1.109 raeburn 1040: unless ($env{'request.role.adv'}) {
1.119 raeburn 1041: if ($buttonshide->{$symb} eq 'yes') {
1.136 raeburn 1042: return $metainfo;
1.109 raeburn 1043: }
1044: }
1.131 raeburn 1045: my $crs_sec = $env{'request.course.id'} . (($env{'request.course.sec'} ne '')
1046: ? "/$env{'request.course.sec'}"
1047: : '');
1.136 raeburn 1048: my $esrc=&Apache::lonnet::declutter($hash->{'src_'.$rid});
1.83 albertel 1049: if ($hash->{'encrypted_'.$rid}) {
1050: $esrc=&Apache::lonenc::encrypted($esrc);
1051: }
1052: if ($hash->{'src_'.$rid} !~ m-^/uploaded/-
1.134 raeburn 1053: && $hash->{'src_'.$rid} !~ m{^/ext/}
1.83 albertel 1054: && !$env{'request.enc'}
1055: && ($env{'request.role.adv'}
1056: || !$hash->{'encrypted_'.$rid})) {
1.137 raeburn 1057: $metainfo .= '<a href="'.$hash->{'src_'.$rid}.'.meta'.'" '.
1058: 'target="LONcatInfo">'.
1.100 bisitz 1059: '<img src="/res/adm/pages/catalog.png" class="LC_icon"'.
1060: ' alt="'.&mt('Show Metadata').'"'.
1061: ' title="'.&mt('Show Metadata').'" />'.
1.83 albertel 1062: '</a>';
1063: }
1.99 raeburn 1064: if (($hash->{'src_'.$rid} !~ m{^/uploaded/}) &&
1.134 raeburn 1065: ($hash->{'src_'.$rid} !~ m{^/ext/})) {
1.98 raeburn 1066: $metainfo .= '<a href="/adm/evaluate?postdata='.
1067: &escape($esrc).
1068: '" target="LONcatInfo">'.
1.100 bisitz 1069: '<img src="/res/adm/pages/eval.png" class="LC_icon"'.
1070: ' alt="'.&mt('Provide my evaluation of this resource').'"'.
1071: ' title="'.&mt('Provide my evaluation of this resource').'" />'.
1.98 raeburn 1072: '</a>';
1073: }
1.97 www 1074: if (($hash->{'src_'.$rid}=~/$LONCAPA::assess_re/) &&
1.83 albertel 1075: ($hash->{'src_'.$rid} !~ m-^/uploaded/-)) {
1076:
1.132 raeburn 1077: if ((&Apache::lonnet::allowed('mgr',$crs_sec)) ||
1078: (&Apache::lonnet::allowed('vgr',$crs_sec))) {
1.83 albertel 1079: $metainfo.=
1080: '<a href="/adm/grades?symb='.&escape($symb).
1081: # '&command=submission" target="LONcatInfo">'.
1082: '&command=submission">'.
1.100 bisitz 1083: '<img src="/adm/lonMisc/subm_button.png" class="LC_icon"'.
1084: ' alt="'.&mt('View Submissions for a Student or a Group of Students').'"'.
1085: ' title="'.&mt('View Submissions for a Student or a Group of Students').'" />'.
1.132 raeburn 1086: '</a>';
1087: }
1088: if (&Apache::lonnet::allowed('mgr',$crs_sec)) {
1089: $metainfo.=
1.83 albertel 1090: '<a href="/adm/grades?symb='.&escape($symb).
1091: # '&command=gradingmenu" target="LONcatInfo">'.
1092: '&command=gradingmenu">'.
1.100 bisitz 1093: '<img src="/res/adm/pages/pgrd.png" class="LC_icon"'.
1094: ' alt="'.&mt('Content Grades').'"'.
1095: ' title="'.&mt('Content Grades').'" />'.
1.83 albertel 1096: '</a>';
1097: }
1.132 raeburn 1098: if ((&Apache::lonnet::allowed('opa',$crs_sec)) ||
1099: (&Apache::lonnet::allowed('vpa',$crs_sec))) {
1.83 albertel 1100: $metainfo.=
1101: '<a href="/adm/parmset?symb='.&escape($symb).
1102: # '" target="LONcatInfo">'.
1103: '" >'.
1.100 bisitz 1104: '<img src="/adm/lonMisc/pprm_button.png" class="LC_icon"'.
1105: ' alt="'.&mt('Content Settings').'"'.
1106: ' title="'.&mt('Content Settings').'" />'.
1.83 albertel 1107: '</a>';
1108: }
1109: }
1.125 raeburn 1110: if ($env{'request.course.id'}) {
1.102 raeburn 1111: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1112: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1113: my $file=&Apache::lonnet::declutter($hash->{'src_'.$rid});
1.125 raeburn 1114: my $editbutton = '';
1115: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1116: my ($cfile,$home,$switchserver,$forceedit,$forceview) =
1117: &Apache::lonnet::can_edit_resource($file,$cnum,$cdom,$hash->{'src_'.$rid},$symb);
1118: if ($cfile ne '') {
1119: my $jscall = &Apache::lonhtmlcommon::jump_to_editres($cfile,$home,$switchserver,
1.141 raeburn 1120: $forceedit,1,$symb,$shownsymb,
1121: undef,&escape($env{'form.title'}),
1.125 raeburn 1122: $hostname);
1123: if ($jscall) {
1124: $editbutton = 1;
1125: my $icon = 'pcstr.png';
1126: my $label = &mt('Edit');
1127: my $title = &mt('Edit this resource');
1128: my $pic = '<img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/'.$icon).'"'.
1129: ' class="LC_icon" alt="'.$label.'" title="'.$title.'" />';
1130: $metainfo .= ' <a href="javascript:'.$jscall.';">'.$pic.'</a>';
1131: }
1132: }
1133: }
1134: if ((!$editbutton) && ($file=~/$LONCAPA::assess_re/)) {
1135: my $url = &Apache::lonnet::clutter($file);
1136: my $viewsrcbutton;
1137: if ((&Apache::lonnet::allowed('cre','/')) &&
1138: (&Apache::lonnet::metadata($url,'sourceavail') eq 'open')) {
1139: $viewsrcbutton = 1;
1.131 raeburn 1140: } elsif (&Apache::lonnet::allowed('vxc',$crs_sec)) {
1.125 raeburn 1141: if ($url =~ m{^\Q/res/$cdom/\E($LONCAPA::match_username)/}) {
1142: my $auname = $1;
1143: if (($env{'request.course.adhocsrcaccess'} ne '') &&
1144: (grep(/^\Q$auname\E$/,split(/,/,$env{'request.course.adhocsrcaccess'})))) {
1145: $viewsrcbutton = 1;
1.130 raeburn 1146: } elsif ((&Apache::lonnet::metadata($url,'sourceavail') eq 'open') &&
1.131 raeburn 1147: (&Apache::lonnet::allowed('bre',$crs_sec))) {
1.130 raeburn 1148: $viewsrcbutton = 1;
1.125 raeburn 1149: }
1150: }
1151: }
1152: if ($viewsrcbutton) {
1.102 raeburn 1153: my $icon = 'pcstr.png';
1.125 raeburn 1154: my $label = &mt('View Source');
1155: my $title = &mt('View source code');
1156: my $jsrid = $rid;
1157: $jsrid =~ s/\./_/g;
1158: my $showurl = &escape(&Apache::lonenc::check_encrypt($url));
1.102 raeburn 1159: my $pic = '<img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/'.$icon).'"'.
1160: ' class="LC_icon" alt="'.$label.'" title="'.$title.'" />';
1.125 raeburn 1161: $metainfo .= ' <a href="javascript:open_source_'.$jsrid.'();">'.$pic.'</a>'."\n".
1162: '<script type="text/javascript">'."\n".
1163: "function open_source_$jsrid() {\n".
1164: " sourcewin=window.open('/adm/source?inhibitmenu=yes&viewonly=1&filename=$showurl','LONsource',".
1165: "'height=500,width=600,resizable=yes,location=no,menubar=no,toolbar=no,scrollbars=yes');\n".
1166: "}\n".
1167: "</script>\n";
1.102 raeburn 1168: }
1169: }
1170: }
1.83 albertel 1171: return $metainfo;
1172: }
1173:
1.111 raeburn 1174: sub add_countdown_timer {
1.114 raeburn 1175: my ($currdisp,$donebuttontime,$donebuttonextras) = @_;
1.112 raeburn 1176: my ($collapse,$expand,$alttxt,$title,$donebutton);
1.111 raeburn 1177: if ($currdisp eq 'inline') {
1178: $collapse = '► ';
1179: } else {
1180: $expand = '◄ ';
1181: }
1.112 raeburn 1182: if ($donebuttontime) {
1.114 raeburn 1183: my ($type,$proctor,$donebuttontext);
1184: if (ref($donebuttonextras) eq 'HASH') {
1185: $proctor = $donebuttonextras->{'proctor'};
1186: $donebuttontext = $donebuttonextras->{'text'};
1187: $type = $donebuttonextras->{'type'};
1188: } else {
1189: $donebuttontext = &mt('Done');
1.116 raeburn 1190: $type = 'map';
1.114 raeburn 1191: }
1192: $donebutton =
1193: &Apache::lonmenu::done_button_js($type,'','',$proctor,$donebuttontext);
1.112 raeburn 1194: }
1.111 raeburn 1195: unless ($env{'environment.icons'} eq 'iconsonly') {
1196: $alttxt = &mt('Timer');
1197: $title = $alttxt.' ';
1198: }
1199: my $desc = &mt('Countdown to due date/time');
1200: my $output = <<END;
1.112 raeburn 1201: $donebutton
1.111 raeburn 1202: <a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
1203: <span id="ddcountcollapse" class="LC_menubuttons_inline_text">
1204: $collapse
1205: </span></a>
1206: <span id="duedatecountdown" class="LC_menubuttons_inline_text" style="display: $currdisp;"></span>
1207: <a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
1208: <span id="ddcountexpand" class="LC_menubuttons_inline_text" >$expand</span>
1209: <img src="/res/adm/pages/timer.png" title="$desc" class="LC_icon" alt="$alttxt" /><span class="LC_menubuttons_inline_text">$title</span></a>
1210: END
1211: &Apache::lonhtmlcommon::add_breadcrumb_tool('tools',$output);
1212: return;
1213: }
1214:
1.135 raeburn 1215: sub create_extlink {
1216: my ($url,$anchor,$title,$linktext) = @_;
1217: my $shownlink;
1218: unless ($title eq '') {
1219: $shownlink = '<span style="font-weight:bold;">'.$title.'</span><br />';
1220: }
1221: my $dest = &HTML::Entities::encode($url.$anchor,'&<>"');
1222: $shownlink .= '<a href="'.$dest.'">'.$linktext.'</a>';
1223: return $shownlink;
1224: }
1.111 raeburn 1225:
1.1 www 1226: 1;
1227: __END__
1228:
1229:
1.89 jms 1230: =head1 NAME
1231:
1232: Apache::lonpage - Page Handler
1233:
1234: =head1 SYNOPSIS
1235:
1236: Invoked by /etc/httpd/conf/srm.conf:
1237:
1238: <LocationMatch "^/res/.*\.page$>
1239: SetHandler perl-script
1240: PerlHandler Apache::lonpage
1241: </LocationMatch>
1242:
1243: =head1 INTRODUCTION
1244:
1245: This module renders a .page resource.
1246:
1247: This is part of the LearningOnline Network with CAPA project
1248: described at http://www.lon-capa.org.
1249:
1250: =head1 HANDLER SUBROUTINE
1251:
1252: This routine is called by Apache and mod_perl.
1253:
1254: =over 4
1255:
1256: =item *
1257:
1258: set document type for header only
1259:
1260: =item *
1261:
1262: tie db file
1263:
1264: =item *
1265:
1266: render page
1267:
1268: =item *
1269:
1270: add to symb list
1271:
1272: =item *
1273:
1274: page parms
1275:
1276: =item *
1277:
1278: Get SSI output, post parameters
1.1 www 1279:
1.89 jms 1280: =item *
1281:
1282: SSI cell rendering
1283:
1284: =item *
1285:
1286: Deal with Applet codebases
1287:
1288: =item *
1289:
1290: Build page
1291:
1292: =item *
1293:
1294: send headers
1295:
1296: =item *
1297:
1298: start body
1299:
1300: =item *
1301:
1302: start form
1303:
1304: =item *
1305:
1306: start table
1307:
1308: =item *
1309:
1310: submit element, etc, render page, untie hash
1311:
1312: =back
1313:
1314: =head1 OTHER SUBROUTINES
1315:
1316: =over 4
1317:
1318: =item *
1319:
1320: euclid() : Euclid's method for determining the greatest common denominator.
1321:
1322: =item *
1323:
1324: tracetable() : Build page table.
1325:
1326: =back
1327:
1328: =cut
1.1 www 1329:
1330:
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