1: # The LearningOnline Network with CAPA
2: # Page Handler
3: #
4: # $Id: lonpage.pm,v 1.111.2.10.2.3 2020/11/13 02:46:48 raeburn 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: ###
29:
30:
31:
32:
33: package Apache::lonpage;
34:
35: use strict;
36: use Apache::Constants qw(:common :http);
37: use Apache::lonnet;
38: use Apache::loncommon();
39: use Apache::lonhtmlcommon;
40: use Apache::lonxml();
41: use Apache::lonlocal;
42: use Apache::lonmenu;
43: use Apache::lonhomework;
44: use Apache::lonparmset;
45: use Apache::lonenc();
46: use HTML::TokeParser;
47: use HTML::Entities();
48: use GDBM_File;
49: use Apache::lonsequence;
50: use lib '/home/httpd/lib/perl/';
51: use LONCAPA;
52:
53:
54: # -------------------------------------------------------------- Module Globals
55: my %hash;
56: my @rows;
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 $b;
69: }
70:
71: # ------------------------------------------------------------ Build page table
72:
73: sub tracetable {
74: my ($sofar,$rid,$beenhere)=@_;
75: my $further=$sofar;
76: my $randomout=0;
77: unless ($env{'request.role.adv'}) {
78: $randomout = $hash{'randomout_'.$rid};
79: }
80: unless ($beenhere=~/\&$rid\&/) {
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_'.$rid}},
89: '&'.$frid.$beenhere);
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}) {
105: my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid});
106: if (($brepriv eq '2') || ($brepriv eq 'F')) {
107: if (defined($rows[$sofar])) {
108: $rows[$sofar].='&'.$rid;
109: } else {
110: $rows[$sofar]=$rid;
111: }
112: }
113: }
114: }
115: }
116:
117: if (defined($hash{'to_'.$rid})) {
118: my $mincond=1;
119: my $next='';
120: foreach (split(/\,/,$hash{'to_'.$rid})) {
121: my $thiscond=
122: &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}});
123: if ($thiscond>=$mincond) {
124: if ($next) {
125: $next.=','.$_.':'.$thiscond;
126: } else {
127: $next=$_.':'.$thiscond;
128: }
129: if ($thiscond>$mincond) { $mincond=$thiscond; }
130: }
131: }
132: foreach (split(/\,/,$next)) {
133: my ($linkid,$condval)=split(/\:/,$_);
134: if ($condval>=$mincond) {
135: my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere);
136: if ($now>$further) { $further=$now; }
137: }
138: }
139: }
140: }
141: return $further;
142: }
143:
144: # ================================================================ Main Handler
145:
146: sub handler {
147: my $r=shift;
148:
149: # ------------------------------------------- Set document type for header only
150:
151: if ($r->header_only) {
152: if ($env{'browser.mathml'}) {
153: &Apache::loncommon::content_type($r,'text/xml');
154: } else {
155: &Apache::loncommon::content_type($r,'text/html');
156: }
157: $r->send_http_header;
158: return OK;
159: }
160:
161: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
162: ['forceselect','launch']);
163: my $number_of_columns = 1;
164: my $requrl=$r->uri;
165: my $target = $env{'form.grade_target'};
166:
167: # Short term solution: define target as 'tex_answer' when retrieving answers
168: # for resources in a .page when generating printouts.
169: # A better long-term fix would be to modify the way problem rendering, and
170: # answer rendering are retrieved for individual resources when printing a .page,
171: # so rendered problem and answer are sequential for individual resources in
172: # the .page
173: #
174: if ($target eq 'answer') {
175: if ($env{'form.answer_output_mode'} eq 'tex') {
176: $target = 'tex_answer';
177: }
178: }
179: # &Apache::lonnet::logthis("Got a target of $target");
180: if ($target eq 'meta') {
181: &Apache::loncommon::content_type($r,'text/html');
182: $r->send_http_header;
183: return OK;
184: }
185: # ----------------------------------------------------------------- Tie db file
186: if (($env{'request.course.fn'}) && (!$env{'form.forceselect'})) {
187: my $fn=$env{'request.course.fn'};
188: if (-e "$fn.db") {
189: my %buttonshide;
190: my $hostname = $r->hostname();
191: my $lonhost = $r->dir_config('lonHostID');
192: my $ip = &Apache::lonnet::get_host_ip($lonhost);
193: if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) {
194: # ------------------------------------------------------------------- Hash tied
195: my $firstres=$hash{'map_start_'.$requrl};
196: my $lastres=$hash{'map_finish_'.$requrl};
197: if (($firstres) && ($lastres)) {
198: # ------------------------------------------------------------- Countdown Timer
199: my $now = time;
200: my ($pagefirstaccess,%hastimeleft,%countdowndisp,%donebutton,
201: %donebtnextra,%buttonbytime,$donetime,$symbtosetdone);
202: my ($pagesymb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
203: unless ($pagesymb) {
204: $pagesymb=&Apache::lonnet::symbread($requrl);
205: }
206: if ($pagesymb && ($courseid ne '') && ($domain ne '') && ($name ne '')) {
207: my %times=&Apache::lonnet::get('firstaccesstimes',
208: [$courseid."\0".$pagesymb],
209: $domain,$name);
210: if ($times{$courseid."\0".$pagesymb} =~ /^\d+$/) {
211: $pagefirstaccess = $times{$courseid."\0".$pagesymb};
212: if ($pagefirstaccess && $env{'form.LC_interval_done'} eq 'true') {
213: $donetime = $now - $pagefirstaccess;
214: }
215: }
216: }
217:
218: # ----------------------------------------------------------------- Render page
219:
220: @rows=();
221:
222: &tracetable(0,$firstres,'&');
223:
224: # ------------------------------------------------------------ Add to symb list
225:
226: my $i;
227: my %symbhash=();
228: for ($i=0;$i<=$#rows;$i++) {
229: if ($rows[$i]) {
230: my @colcont=split(/\&/,$rows[$i]);
231: foreach my $rid (@colcont) {
232: my ($mapid,$resid)=split(/\./,$rid);
233: $symbhash{$hash{'src_'.$rid}}=
234: [$hash{'src_'.$rid},$resid];
235: if (($donetime) && ($symbtosetdone eq '')) {
236: my $src = $hash{'src_'.$rid};
237: if ($hash{'encrypted_'.$rid}) {
238: $src=&Apache::lonenc::encrypted($src);
239: }
240: my ($mapid,$resid)=split(/\./,$rid);
241: my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$src);
242: if ($src =~ /$LONCAPA::assess_re/) {
243: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
244: if (@interval > 1) {
245: if (($interval[1] eq 'map') && ($pagefirstaccess)) {
246: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
247: if ($timelimit) {
248: if ($pagefirstaccess + $timelimit > $now) {
249: $symbtosetdone = $symb;
250: }
251: }
252: }
253: }
254: }
255: }
256: }
257: }
258: }
259: &Apache::lonnet::symblist($requrl,%symbhash);
260:
261: # ------------------------------------------------------------------ Page parms
262:
263: my $j;
264: my $lcm=1;
265: my $contents=0;
266: my $nforms=0;
267: my $nuploads=0;
268: my $ntimers=0;
269: my %turninpaths;
270: my %multiresps;
271: my $turninparent;
272:
273: my %ssibody=();
274: my %ssibgcolor=();
275: my %ssitext=();
276: my %ssilink=();
277: my %ssivlink=();
278: my %ssialink=();
279: my %cssrefs=();
280: my %httpref=();
281:
282: my %cellemb=();
283: my %cellexternal=();
284:
285: my $allscript='';
286: my $allmeta='';
287:
288: my $isxml=0;
289: my $xmlheader='';
290: my $xmlbody='';
291:
292: # ---------------------------------------------------------- Handle Done button
293:
294: # Set the event timer to zero if the "done button" was clicked.
295: if ($donetime && $symbtosetdone) {
296: &Apache::lonparmset::storeparm_by_symb_inner($symbtosetdone,'0_interval',
297: 2,$donetime,'date_interval',
298: $name,$domain);
299: undef($env{'form.LC_interval_done'});
300: }
301:
302: # --------------------------------------------- Get SSI output, post parameters
303:
304: for ($i=0;$i<=$#rows;$i++) {
305: if ($rows[$i]) {
306: $contents++;
307: my @colcont=split(/\&/,$rows[$i]);
308: $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
309: foreach (@colcont) {
310: my $src=$hash{'src_'.$_};
311: my $plainsrc = $src;
312: my $anchor;
313: if ($hash{'ext_'.$_} eq 'true:') {
314: $cellexternal{$_}=($hash{'ext_'.$_} eq 'true:');
315: $src =~ s{^/ext/}{http://};
316: $src =~ s{http://https://}{https://};
317: if ($src =~ /(\#[^#]+)$/) {
318: $anchor = $1;
319: $src =~ s/\#[^#]+$//;
320: }
321: }
322: my $unencsrc = $src;
323: my ($extension)=($src=~/\.(\w+)$/);
324: if ($hash{'encrypted_'.$_}) {
325: $src=&Apache::lonenc::encrypted($src);
326: }
327: my ($mapid,$resid)=split(/\./,$_);
328: my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$plainsrc);
329: unless ($env{'request.role.adv'}) {
330: $buttonshide{$symb} = &Apache::lonnet::EXT("resource.0.buttonshide",$symb);
331: }
332: $cellemb{$_}=
333: &Apache::loncommon::fileembstyle($extension);
334: if ($cellexternal{$_}) {
335: if (($target eq 'tex') || ($target eq 'tex_answer')) {
336: my $shown = $src.$anchor;
337: if (($hash{'encrypted_'.$_}) && (!$env{'request.role.adv'})) {
338: $shown = &mt('URL not shown (encrypted)');
339: }
340: my $title=&Apache::lonnet::gettitle($symb);
341: $title = &Apache::lonxml::latex_special_symbols($title);
342: $shown = &Apache::lonxml::latex_special_symbols($shown);
343: $ssibody{$_} = ' \strut \\\\ \textit{'.$title.'} \strut \\\\ '.$shown.'\\\\';
344: } else {
345: my $showsrc = $src;
346: my ($is_pdf,$title,$linktext);
347: if ($unencsrc =~ /\.pdf$/i) {
348: $is_pdf = 1;
349: }
350: if (($hash{'encrypted_'.$_}) && ($symb)) {
351: $title=&Apache::lonnet::gettitle(&Apache::lonenc::encrypted($symb));
352: } else {
353: $title=&Apache::lonnet::gettitle($symb);
354: }
355: if ($env{'browser.mobile'}) {
356: if ($is_pdf) {
357: $linktext = &mt('Link to PDF (for mobile devices)');
358: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
359: } else {
360: $linktext = &mt('Link to resource');
361: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
362: }
363: } else {
364: my $absolute = $env{'request.use_absolute'};
365: my $uselink = &Apache::loncommon::is_nonframeable($unencsrc,$absolute,$hostname,$ip);
366: if (($uselink) || (($ENV{'SERVER_PORT'} == 443) && ($unencsrc =~ m{^http://}))) {
367: $linktext = &mt('Link to resource');
368: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
369: } else {
370: if (($hash{'encrypted_'.$_}) && ($symb) && (!$env{'request.role.adv'})) {
371: $showsrc .= '?symb='.&Apache::lonenc::encrypted($symb);
372: } elsif ($anchor) {
373: $showsrc .= $anchor;
374: }
375: $ssibody{$_} = <<ENDEXT;
376: <iframe src="$showsrc" width="100%" height="300px">No iframe support!</iframe>
377: ENDEXT
378: }
379: }
380: }
381: } elsif ($cellemb{$_} eq 'ssi') {
382: # --------------------------------------------------------- This is an SSI cell
383: my $prefix='p_'.$_.'_';
384: my $idprefix='p_'.join('_',($mapid,$resid,''));
385: my %posthash=('request.prefix' => $prefix,
386: 'LONCAPA_INTERNAL_no_discussion' => 'true',
387: 'symb' => $symb);
388: if (($env{'form.grade_target'} eq 'tex') ||
389: ($env{'form.answer_output_mode'} eq 'tex')) {
390: $posthash{'grade_target'}=$env{'form.grade_target'};
391: $posthash{'textwidth'}=$env{'form.textwidth'};
392: $posthash{'problem_split'}=$env{'form.problem_split'};
393: $posthash{'latex_type'}=$env{'form.latex_type'};
394: $posthash{'rndseed'}=$env{'form.rndseed'};
395: $posthash{'answer_output_mode'} = $env{'form.answer_output_mode'};
396: }
397: my $submitted=$env{'form.all_submit_pressed'};
398: if (!$submitted) {
399: foreach my $key (keys(%env)) {
400: if ($key=~/^\Qform.$prefix\Esubmit_(.+)_pressed$/) {
401: if ($env{$key}) {
402: $submitted=1;
403: last;
404: }
405: }
406: }
407: }
408: if ($submitted) {
409: foreach my $key (keys(%env)) {
410: if ($key=~/^\Qform.$prefix\E/) {
411: my $name=$key;
412: $name=~s/^\Qform.$prefix\E//;
413: $posthash{$name}=$env{$key};
414: }
415: }
416: if ($env{'form.all_submit_pressed'}) {
417: $posthash{'all_submit'}='yes';
418: }
419: } elsif ($env{'form.'.$prefix.'markaccess'} eq 'yes') {
420: $posthash{'markaccess'} = $env{'form.'.$prefix.'markaccess'};
421: }
422: if ($env{'environment.remote'} eq 'on') {
423: $posthash{'inhibitmenu'} = 'yes';
424: }
425: my $output=Apache::lonnet::ssi($src,%posthash);
426: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
427: if (($target eq 'tex') || ($target eq 'tex_answer')) {
428: $output =~ s/^([^&]+)\\begin\{document}//;
429: $output =~ s/\\end\{document}//;
430: # $output = '\parbox{\minipagewidth}{ '.$output.' }';
431: #some additional cleanup necessary for LateX (due to limitations of table environment
432: $output =~ s/(\\vskip\s*\d+mm)\s*(\\\\)+/$1/g;
433: }
434: my $matheditor;
435: if ($output =~ /\Qjavascript:LC_mathedit_HWVAL_\E/) {
436: $matheditor = 'dragmath';
437: } elsif ($output =~ /LCmathField/) {
438: $matheditor = 'lcmath';
439: }
440: my $parser=HTML::TokeParser->new(\$output);
441: my $token;
442: my $thisdir=$src;
443: my $bodydef=0;
444: my $thisxml=0;
445: my @rlinks=();
446: my @css_hrefs=();
447: if ($output=~/\?xml/) {
448: $isxml=1;
449: $thisxml=1;
450: $output=~
451: /((?:\<(?:\?xml|\!DOC|html)[^\>]*(?:\>|\>\]\>)\s*)+)\<body[^\>]*\>/si;
452: $xmlheader=$1;
453: }
454: while ($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') {
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: }
479: } elsif ($token->[1] eq 'meta') {
480: if ($token->[4] !~ m:/>$:) {
481: $allmeta.="\n".$token->[4].'</meta>';
482: } else {
483: $allmeta.="\n".$token->[4];
484: }
485: } elsif (($token->[1] eq 'script') &&
486: ($bodydef==0)) {
487: $allscript.="\n\n"
488: .$parser->get_text('/script');
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: $token->[2]->{'href'};
495:
496: }
497: }
498: }
499: }
500: if ($output=~/\<body[^\>]*\>(.*)/si) {
501: $output=$1;
502: }
503: $output=~s/\<\/body\>.*//si;
504: if ($output=~/\<form/si) {
505: my $hastimer;
506: $nforms++;
507: $output=~s/\<form[^\>]*\>//gsi;
508: $output=~s/\<\/form[^\>]*\>//gsi;
509: if ($output=~/\<input[^\>]+name\s*=\s*[\'\"]*HWFILE/) {
510: $nuploads++;
511: }
512: if ($output=~/\<input[^\>]+name\s*=\s*[\'\"]*accessbutton/) {
513: $ntimers++;
514: $hastimer = 1;
515: }
516: $output=~
517: s/\<((?:input|select|button|textarea)[^\>]+)name\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 name="$prefix$2" $3\>/gsi;
518: $output=~
519: s/\<((?:input|select|button|textarea)[^\>]+)id\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 id="$idprefix$2" $3\>/gsi;
520: $output=~
521: s/(\Qthis.form.elements['\E)(HW(?:VAL|CHK)_[^']+\'\]\.(?:value=\'|checked))/$1$prefix$2/gsi;
522: if ($hastimer) {
523: $output=~
524: s/\<(input[^\>]+name=\Q"$prefix\Eaccessbutton"[^\>]+)(?:\Qdocument.markaccess.submit();\E)([^\>]*)\>/\<$1pageTimer(this.form,'$prefix')$2\>/gsi;
525: $output=~ s/\<(input[^\>]+name=\Q"$prefix\Emarkaccess"[^\>]+value=["'])(?:yes)(['"][^\>]*)\>/\<$1$2\>/gsi;
526: }
527: if ($matheditor eq 'dragmath') {
528: $output=~
529: s/(\Qjavascript:LC_mathedit_\E)(HWVAL_)([^'"]+?)(\(['"]*)(\QHWVAL_\E\3['"]\)\;void\(0\)\;)/$1$idprefix$2$3$4$idprefix$5/g;
530: $output=~
531: s/(function\s+LC_mathedit_)(HWVAL_)([^'"]+?)(\s+\(LCtextline\))/$1$idprefix$2$3$4/g;
532: } elsif ($matheditor eq 'lcmath') {
533: $output=~
534: s/(var\s+LCmathField\s+=\s+document\.getElementById\(['"])([^'"]+?)(['"]\)\;)/$1$idprefix$2$3/g;
535: }
536: $output=~
537: s/(\Q<div id="msg_\E)(\Qsubmit_\E)([^"]*)(\Q" style="display:none">\E)/<input type="hidden" name="$prefix$2$3_pressed" id="$idprefix$2$3_pressed" value="" \/>$1$idprefix$2$3$4/g;
538: $output=~
539: s/(\Q<td class="LC_status_\E)(\Qsubmit_\E)([^\"]*)(\s*[^\"]*"\>)/$1$idprefix$2$3$4/g;
540: if ($nuploads) {
541: ($turninpaths{$prefix},$multiresps{$prefix}) =
542: &Apache::loncommon::get_turnedin_filepath($symb,$env{'user.name'},$env{'user.domain'});
543: if ($turninparent eq '') {
544: $turninparent = $turninpaths{$prefix};
545: $turninparent =~ s{(/[^/]+)$}{};
546: }
547: }
548: $output=~
549: s/\<((?:input|select)[^\>]+\Qjavascript:setSubmittedPart\E)\(\s*[\'\"]([^\'\"]+)[\'\"]*\s*\)/\<$1('$2','$prefix')/gsi;
550: $output=~
551: s/\<(input[^\>]+\Qonfocus=\"javascript:disableAutoComplete\E)\(\'([^\']+)\'\)(;\")/\<$1('$idprefix$2')$3/gsi;
552: unless ($hastimer) {
553: if ($plainsrc =~ /$LONCAPA::assess_re/) {
554: %Apache::lonhomework::history =
555: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
556: my $type = 'problem';
557: if ($extension eq 'task') {
558: $type = 'Task';
559: }
560: my ($status,$accessmsg,$slot_name,$slot) =
561: &Apache::lonhomework::check_slot_access('0',$type,$symb);
562: undef(%Apache::lonhomework::history);
563: my $probstatus = &Apache::lonnet::EXT("resource.0.problemstatus",$symb);
564: if (($status eq 'CAN_ANSWER') || (($status eq 'CANNOT_ANSWER') &&
565: (($probstatus eq 'no') || ($probstatus eq 'no_feedback_ever'))) ||
566: (($status eq 'NOT_YET_VIEWED') && ($posthash{'markaccess'} eq 'yes'))) {
567: my ($slothastime,$timerhastime);
568: if ($slot_name ne '') {
569: if (ref($slot) eq 'HASH') {
570: if (($slot->{'starttime'} < $now) &&
571: ($slot->{'endtime'} > $now)) {
572: $slothastime = $now - $slot->{'endtime'};
573: }
574: }
575: }
576: my $duedate = &Apache::lonnet::EXT("resource.0.duedate",$symb);
577: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
578: if (@interval > 1) {
579: my $first_access;
580: if ($interval[1] eq 'map') {
581: my $ignorecache;
582: if ($env{'form.'.$prefix.'markaccess'} eq 'yes') {
583: $ignorecache = 1;
584: }
585: $first_access=&Apache::lonnet::get_first_access($interval[1],undef,$pagesymb,$ignorecache);
586: if (($first_access) && (!$pagefirstaccess)) {
587: $pagefirstaccess = $first_access;
588: }
589: } else {
590: $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
591: }
592: if ($first_access > 0) {
593: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
594: if ($timelimit) {
595: my $timeremains = $timelimit + $first_access - $now;
596: if ($timeremains > 0) {
597: $timerhastime = $timeremains;
598: }
599: }
600: }
601: }
602: if (($duedate && $duedate > $now) ||
603: (!$duedate && $timerhastime > 0) ||
604: ($slot_name ne '' && $slothastime)) {
605: if ((@interval > 1 && $timerhastime) ||
606: ($type eq 'Task' && $slothastime)) {
607: $countdowndisp{$symb} = 'inline';
608: if ((@interval > 1) && ($timerhastime)) {
609: $hastimeleft{$symb} = $timerhastime;
610: if ($pagefirstaccess) {
611: my ($timelimit,$usesdone,$donebuttontext,$proctor,$secret);
612: ($timelimit,my $donesuffix) = split(/_/,$interval[0],2);
613: if ($donesuffix =~ /^done\:([^\:]+)\:(.*)$/) {
614: $usesdone = 'done';
615: $donebuttontext = $1;
616: (undef,$proctor,$secret) = split(/_/,$2);
617: } elsif ($donesuffix =~ /^done(|_.+)$/) {
618: $donebuttontext = &mt('Done');
619: ($usesdone,$proctor,$secret) = split(/_/,$donesuffix);
620: }
621: if ($usesdone eq 'done') {
622: $donebutton{$symb} = $timelimit;
623: push(@{$buttonbytime{$timelimit}},$symb);
624: $donebtnextra{$symb} = {
625: text => $donebuttontext,
626: proctor => $proctor,
627: secret => $secret,
628: type => $interval[1],
629: };
630: }
631: }
632: } else {
633: $hastimeleft{$symb} = $slothastime;
634: }
635: } else {
636: $hastimeleft{$symb} = $duedate - $now;
637: $countdowndisp{$symb} = 'none';
638: }
639: unless ($donebutton{$symb}) {
640: $donebutton{$symb} = 0;
641: }
642: }
643: }
644: }
645: }
646: }
647: $thisdir=~s/\/[^\/]*$//;
648: foreach (@rlinks) {
649: unless (($_=~/^https?\:\/\//i) ||
650: ($_=~/^\//) ||
651: ($_=~/^javascript:/i) ||
652: ($_=~/^mailto:/i) ||
653: ($_=~/^\#/)) {
654: my $newlocation=
655: &Apache::lonnet::hreflocation($thisdir,$_);
656: $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
657: }
658: }
659: foreach my $css_href (@css_hrefs) {
660: next if ($css_href eq '');
661: unless ($css_href =~ m{https?://}) {
662: my $proburl = &Apache::lonnet::clutter($plainsrc);
663: unless ($css_href =~ m{^/}) {
664: my $probdir = $proburl;
665: $probdir=~s/\/[^\/]*$//;
666: $css_href = &Apache::lonnet::hreflocation($probdir,$css_href);
667: }
668: if ($css_href =~ m{^/(res|uploaded)/}) {
669: unless (($env{'httpref.'.$css_href}) ||
670: ($httpref{'httpref.'.$css_href}) ||
671: (&Apache::lonnet::is_on_map($css_href))) {
672: if ($env{'httpref.'.$proburl}) {
673: $proburl = $env{'httpref.'.$proburl};
674: }
675: $httpref{'httpref.'.$css_href} = $proburl;
676: }
677: }
678: }
679: $cssrefs{$css_href} = 1;
680: }
681: # -------------------------------------------------- Deal with Applet codebases
682: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
683: $ssibody{$_}=$output;
684: # ---------------------------------------------------------------- End SSI cell
685: }
686: }
687: }
688: }
689: unless ($contents) {
690: &Apache::loncommon::content_type($r,'text/html');
691: $r->send_http_header;
692: $r->print(&Apache::loncommon::start_page(undef,undef,
693: {'force_register' => 1}));
694: $r->print(&mt('This page is either empty or it only contains resources that are currently hidden').'. ');
695: $r->print('<br /><br />'.&mt('Please use the LON-CAPA navigation arrows to move to another item in the course').
696: &Apache::loncommon::end_page());
697: } else {
698: # ------------------------------------------------------------------ Build page
699:
700: # ---------------------------------------------------------------- Send headers
701: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
702: if ($isxml) {
703: &Apache::loncommon::content_type($r,'text/xml');
704: } else {
705: &Apache::loncommon::content_type($r,'text/html');
706: }
707: $r->send_http_header;
708: # ------------------------------------------------------------------------ Head
709: if ($allscript) {
710: $allscript =
711: "\n".'<script type="text/javascript">'."\n".
712: $allscript.
713: "\n</script>\n";
714: }
715: if (($nforms) && ($nuploads)) {
716: $allscript .= &Apache::lonhtmlcommon::file_submissionchk_js(\%turninpaths,\%multiresps).
717: '<script type="text/javascript" '.
718: 'src="/res/adm/includes/file_upload.js"></script>';
719: }
720: if (($nforms) && (&Apache::lonhtmlcommon::htmlareabrowser())) {
721: my %textarea_args = (
722: dragmath => 'math',
723: );
724: $allscript .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
725: }
726: if ($ntimers) {
727: $allscript .= '<script type="text/javascript">'."\n".
728: '// <![CDATA['."\n".
729: 'function pageTimer(form,prefix) {'."\n".
730: " form.elements[prefix+'markaccess'].value = 'yes';\n".
731: " form.submit();\n".
732: '}'."\n".
733: '// ]]>'.
734: "\n</script>\n";
735: }
736: &Apache::lonhtmlcommon::clear_breadcrumb_tools();
737: if (keys(%hastimeleft)) {
738: my (%uniquetimes,%uniquedisplays);
739: foreach my $item (values(%hastimeleft)) {
740: if (exists($uniquetimes{$item})) {
741: $uniquetimes{$item} ++;
742: } else {
743: $uniquetimes{$item} = 1;
744: }
745: }
746: if (scalar(keys(%uniquetimes)) == 1) {
747: my (%uniquedisplays,%uniquedones,$currdisp,$donebuttontime,
748: $donebuttonextras);
749: if (keys(%countdowndisp)) {
750: foreach my $item (values(%countdowndisp)) {
751: if (exists($uniquedisplays{$item})) {
752: $uniquedisplays{$item} ++;
753: } else {
754: $uniquedisplays{$item} = 1;
755: }
756: }
757: my @countdowndisplay = keys(%uniquedisplays);
758: if (scalar(@countdowndisplay) == 1) {
759: $currdisp = $countdowndisplay[0];
760: }
761: }
762: if (keys(%donebutton)) {
763: foreach my $item (values(%donebutton)) {
764: if (exists($uniquedones{$item})) {
765: $uniquedones{$item} ++;
766: } else {
767: $uniquedones{$item} = 1;
768: }
769: }
770: my @donebuttons = sort { $ <=> $b } (keys(%uniquedones));
771: if (scalar(@donebuttons) == 1) {
772: if ($donebuttons[0]) {
773: $donebuttontime = $donebuttons[0];
774: if (ref($buttonbytime{$donebuttontime}) eq 'ARRAY') {
775: $donebuttonextras = $donebtnextra{$buttonbytime{$donebuttontime}->[0]};
776: }
777: }
778: }
779: }
780: &add_countdown_timer($currdisp,$donebuttontime,$donebuttonextras);
781: }
782: }
783: my $pagebuttonshide;
784: if (keys(%buttonshide)) {
785: my %uniquebuttonhide;
786: foreach my $item (values(%buttonshide)) {
787: if (exists($uniquebuttonhide{$item})) {
788: $uniquebuttonhide{$item} ++;
789: } else {
790: $uniquebuttonhide{$item} = 1;
791: }
792: }
793: if (keys(%uniquebuttonhide) == 1) {
794: if (lc((keys(%uniquebuttonhide))[0]) eq 'yes') {
795: $pagebuttonshide = 'yes';
796: }
797: }
798: }
799: if (keys(%cssrefs)) {
800: my $links;
801: if (keys(%cssrefs)) {
802: foreach my $css_href (keys(%cssrefs)) {
803: next unless ($css_href =~ m{^(/res/|/uploaded/|https?://)});
804: $links .= '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />'."\n";
805: }
806: }
807: if ($links) {
808: if (keys(%httpref)) {
809: &Apache::lonnet::appenv(\%httpref);
810: }
811: $allscript .= "\n$links";
812: }
813: }
814: # ------------------------------------------------------------------ Start body
815: $r->print(&Apache::loncommon::start_page(undef,$allscript,
816: {'force_register' => 1,
817: 'bgcolor' => '#ffffff',
818: 'hide_buttons' => $pagebuttonshide}));
819: # ------------------------------------------------------------------ Start form
820: if ($nforms) {
821: my $fmtag = '<form name="lonhomework" method="post" enctype="multipart/form-data"';
822: if ($nuploads) {
823: my $multi;
824: if ($nuploads > 1) {
825: $multi = 1;
826: }
827: $fmtag .= 'onsubmit="return file_submission_check(this,'."'$turninparent','$multi'".');"';
828: }
829: $fmtag .= ' action="'.
830: &Apache::lonenc::check_encrypt($requrl)
831: .'" id="LC_page">';
832: $r->print($fmtag);
833: }
834: } elsif (($target eq 'tex') || ($target eq 'tex_answer')) {
835: # I think this is not needed as the header
836: # will be put in for each of the page parts
837: # by the londefdef.pm now that we are opening up
838: # the parts of a page.
839: #$r->print('\documentclass{article}
840: # \newcommand{\keephidden}[1]{}
841: # \usepackage[dvips]{graphicx}
842: # \usepackage{epsfig}
843: # \usepackage{calc}
844: # \usepackage{longtable}
845: # \begin{document}');
846: }
847: # ----------------------------------------------------------------- Start table
848: if (($target eq 'tex') || ($target eq 'tex_answer')) {
849: # # $r->print('\begin{longtable}INSERTTHEHEADOFLONGTABLE\endfirsthead\endhead ');
850: if ($number_of_columns le $lcm) {$number_of_columns=$lcm;};
851: } else {
852: $r->print('<table width="100%" cols="'.$lcm.'" border="0">');
853: }
854: # generate rows
855: for ($i=0;$i<=$#rows;$i++) {
856: if ($rows[$i]) {
857: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
858: $r->print("\n<tr>");
859: }
860: my @colcont=split(/\&/,$rows[$i]);
861: my $avespan=$lcm/($#colcont+1);
862: for ($j=0;$j<=$#colcont;$j++) {
863: my $rid=$colcont[$j];
864: my $metainfo =&get_buttons(\%hash,$rid,\%buttonshide,$hostname).'<br />';
865: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
866: $r->print('<td colspan="'.$avespan.'"');
867: }
868: if (($cellemb{$rid} eq 'ssi') || ($cellexternal{$rid})) {
869: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
870: if ($ssibgcolor{$rid}) {
871: $r->print(' bgcolor="'.
872: $ssibgcolor{$rid}.'"');
873: }
874: $r->print('>'.$metainfo.'<font');
875:
876: if ($ssitext{$rid}) {
877: $r->print(' text="'.$ssitext{$rid}.'"');
878: }
879: if ($ssilink{$rid}) {
880: $r->print(' link="'.$ssilink{$rid}.'"');
881: }
882: if ($ssitext{$rid}) {
883: $r->print(' vlink="'.$ssivlink{$rid}.'"');
884: }
885: if ($ssialink{$rid}) {
886: $r->print(' alink="'.$ssialink{$rid}.'"');
887: }
888: $r->print('>');
889: }
890: $r->print($ssibody{$rid});
891: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
892: $r->print('</font>');
893: }
894: if ($env{'course.'.
895: $env{'request.course.id'}.
896: '.pageseparators'} eq 'yes') {
897: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
898: $r->print('<hr />');
899: }
900: }
901: } elsif ($cellemb{$rid} eq 'img') {
902: $r->print('>'.$metainfo.'<img src="'.
903: $hash{'src_'.$rid}.'" />');
904: } elsif ($cellemb{$rid} eq 'emb') {
905: $r->print('>'.$metainfo.'<embed src="'.
906: $hash{'src_'.$rid}.'"></embed>');
907: } elsif (&Apache::lonnet::declutter($hash{'src_'.$rid}) !~/\.(sequence|page)$/) {
908: $r->print($metainfo.'<b>'.$hash{'title_'.$rid}.'</b><br />');
909: unless ($cellemb{$rid} eq 'wrp') {
910: $r->print(&mt('It is recommended that you use an up-to-date virus scanner before handling this file.'));
911: }
912: $r->print('</p><p><table>'.
913: &Apache::londocs::entryline(0,
914: &mt("Click to download or use your browser's Save Link function"),
915: '/'.&Apache::lonnet::declutter($hash{'src_'.$rid})).
916: '</table></p><br />');
917: }
918: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
919: $r->print('</td>');
920: } else {
921: # for (my $incol=1;$incol<=$avespan;$incol++) {
922: # $r->print(' & ');
923: # }
924: }
925: }
926: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
927: $r->print('</tr>');
928: } else {
929: # $r->print('REMOVETHEHEADOFLONGTABLE\\\\');
930: }
931: }
932: }
933: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
934: $r->print("\n</table>");
935: } else {
936: # $r->print('\end{longtable}\strut');
937: }
938: # ---------------------------------------------------------------- Submit, etc.
939: if ($nforms) {
940: my $class;
941: if ($nforms > 1) {
942: $class = ' class="LC_hwk_submit"';
943: if ($ntimers) {
944: $nforms = 1;
945: $class = '';
946: }
947: }
948: $r->print(
949: '<input name="all_submit" value="'.&mt('Submit All').'" type="'.
950: (($nforms>1)?'submit':'hidden').'"'.$class.' id="all_submit" />'.
951: '<input type="hidden" name="all_submit_pressed" '.
952: 'id="all_submit_pressed" value="" />'.
953: '<div id="msg_all_submit" style="display:none">'.
954: &mt('Processing your submission ...').'</div></form>');
955: }
956: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
957: $r->print(&Apache::loncommon::end_page({'discussion'
958: => 1,}));
959: } else {
960: $r->print('\end{document}'.$number_of_columns);
961: }
962: &Apache::lonnet::symblist($requrl,%symbhash);
963: my ($map,$id,$url)=&Apache::lonnet::decode_symb(&Apache::lonnet::symbread());
964: &Apache::lonnet::symblist($map,'last_known'=>[$url,$id]);
965: # -------------------------------------------------------------------- End page
966: }
967: # ------------------------------------------------------------- End render page
968: } else {
969: &Apache::loncommon::content_type($r,'text/html');
970: $r->send_http_header;
971: &Apache::lonsequence::viewmap($r,$requrl);
972: }
973: # ------------------------------------------------------------------ Untie hash
974: unless (untie(%hash)) {
975: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
976: "Could not untie coursemap $fn (browse).</font>");
977: }
978: # -------------------------------------------------------------------- All done
979: return OK;
980: # ----------------------------------------------- Errors, hash could no be tied
981: }
982: }
983: }
984: &Apache::loncommon::content_type($r,'text/html');
985: $r->send_http_header;
986: &Apache::lonsequence::viewmap($r,$requrl);
987: return OK;
988: }
989:
990: sub get_buttons {
991: my ($hash,$rid,$buttonshide,$hostname) = @_;
992:
993: my ($mapid,$resid)=split(/\./,$rid);
994: my $symb=&Apache::lonnet::encode_symb($hash->{'map_id_'.$mapid},
995: $resid,
996: $hash->{'src_'.$rid});
997: my $aname;
998: if (($hash->{'encrypted_'.$rid}) && (!$env{'request.role.adv'})) {
999: $aname = 'LC_'.$rid;
1000: } else {
1001: my $shownsymb = $symb;
1002: if ($symb =~ /\#([^\#]+)$/) {
1003: my $escan = &escape('#');
1004: $shownsymb =~ s/#([^\#]+)$/$escan$1/;
1005: }
1006: $aname = &escape($shownsymb);
1007: }
1008: my $metainfo = '<a name="'.$aname.'"></a>';
1009: unless ($env{'request.role.adv'}) {
1010: if ($buttonshide->{$symb} eq 'yes') {
1011: return $metainfo;
1012: }
1013: }
1014: my $crs_sec = $env{'request.course.id'} . (($env{'request.course.sec'} ne '')
1015: ? "/$env{'request.course.sec'}"
1016: : '');
1017: my $esrc=&Apache::lonnet::declutter($hash->{'src_'.$rid});
1018: if ($hash->{'encrypted_'.$rid}) {
1019: $esrc=&Apache::lonenc::encrypted($esrc);
1020: }
1021: if ($hash->{'src_'.$rid} !~ m-^/uploaded/-
1022: && $hash->{'src_'.$rid} !~ m{^/ext/}
1023: && !$env{'request.enc'}
1024: && ($env{'request.role.adv'}
1025: || !$hash->{'encrypted_'.$rid})) {
1026: $metainfo .= '<a href="'.$hash->{'src_'.$rid}.'.meta'.'" '.
1027: 'target="LONcatInfo">'.
1028: '<img src="/res/adm/pages/catalog.png" class="LC_icon"'.
1029: ' alt="'.&mt('Show Metadata').'"'.
1030: ' title="'.&mt('Show Metadata').'" />'.
1031: '</a>';
1032: }
1033: if (($hash->{'src_'.$rid} !~ m{^/uploaded/}) &&
1034: ($hash->{'src_'.$rid} !~ m{^/ext/})) {
1035: $metainfo .= '<a href="/adm/evaluate?postdata='.
1036: &escape($esrc).
1037: '" target="LONcatInfo">'.
1038: '<img src="/res/adm/pages/eval.png" class="LC_icon"'.
1039: ' alt="'.&mt('Provide my evaluation of this resource').'"'.
1040: ' title="'.&mt('Provide my evaluation of this resource').'" />'.
1041: '</a>';
1042: }
1043: if (($hash->{'src_'.$rid}=~/$LONCAPA::assess_re/) &&
1044: ($hash->{'src_'.$rid} !~ m-^/uploaded/-)) {
1045:
1046: if ((&Apache::lonnet::allowed('mgr',$crs_sec)) ||
1047: (&Apache::lonnet::allowed('vgr',$crs_sec))) {
1048: $metainfo.=
1049: '<a href="/adm/grades?symb='.&escape($symb).
1050: # '&command=submission" target="LONcatInfo">'.
1051: '&command=submission">'.
1052: '<img src="/adm/lonMisc/subm_button.png" class="LC_icon"'.
1053: ' alt="'.&mt('View Submissions for a Student or a Group of Students').'"'.
1054: ' title="'.&mt('View Submissions for a Student or a Group of Students').'" />'.
1055: '</a>';
1056: }
1057: if (&Apache::lonnet::allowed('mgr',$crs_sec)) {
1058: $metainfo.=
1059: '<a href="/adm/grades?symb='.&escape($symb).
1060: # '&command=gradingmenu" target="LONcatInfo">'.
1061: '&command=gradingmenu">'.
1062: '<img src="/res/adm/pages/pgrd.png" class="LC_icon"'.
1063: ' alt="'.&mt('Content Grades').'"'.
1064: ' title="'.&mt('Content Grades').'" />'.
1065: '</a>';
1066: }
1067: if ((&Apache::lonnet::allowed('opa',$crs_sec)) ||
1068: (&Apache::lonnet::allowed('vpa',$crs_sec))) {
1069: $metainfo.=
1070: '<a href="/adm/parmset?symb='.&escape($symb).
1071: # '" target="LONcatInfo">'.
1072: '" >'.
1073: '<img src="/adm/lonMisc/pprm_button.png" class="LC_icon"'.
1074: ' alt="'.&mt('Content Settings').'"'.
1075: ' title="'.&mt('Content Settings').'" />'.
1076: '</a>';
1077: }
1078: }
1079: if ($env{'request.course.id'}) {
1080: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1081: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1082: my $file=&Apache::lonnet::declutter($hash->{'src_'.$rid});
1083: my $editbutton = '';
1084: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1085: my ($cfile,$home,$switchserver,$forceedit,$forceview) =
1086: &Apache::lonnet::can_edit_resource($file,$cnum,$cdom,$hash->{'src_'.$rid},$symb);
1087: if ($cfile ne '') {
1088: my $jscall = &Apache::lonhtmlcommon::jump_to_editres($cfile,$home,$switchserver,
1089: $forceedit,1,$symb,undef,
1090: &escape($env{'form.title'}),
1091: $hostname);
1092: if ($jscall) {
1093: $editbutton = 1;
1094: my $icon = 'pcstr.png';
1095: my $label = &mt('Edit');
1096: my $title = &mt('Edit this resource');
1097: my $pic = '<img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/'.$icon).'"'.
1098: ' class="LC_icon" alt="'.$label.'" title="'.$title.'" />';
1099: $metainfo .= ' <a href="javascript:'.$jscall.';">'.$pic.'</a>';
1100: }
1101: }
1102: }
1103: if ((!$editbutton) && ($file=~/$LONCAPA::assess_re/)) {
1104: my $url = &Apache::lonnet::clutter($file);
1105: my $viewsrcbutton;
1106: if ((&Apache::lonnet::allowed('cre','/')) &&
1107: (&Apache::lonnet::metadata($url,'sourceavail') eq 'open')) {
1108: $viewsrcbutton = 1;
1109: } elsif (&Apache::lonnet::allowed('vxc',$crs_sec)) {
1110: if ($url =~ m{^\Q/res/$cdom/\E($LONCAPA::match_username)/}) {
1111: my $auname = $1;
1112: if (($env{'request.course.adhocsrcaccess'} ne '') &&
1113: (grep(/^\Q$auname\E$/,split(/,/,$env{'request.course.adhocsrcaccess'})))) {
1114: $viewsrcbutton = 1;
1115: } elsif ((&Apache::lonnet::metadata($url,'sourceavail') eq 'open') &&
1116: (&Apache::lonnet::allowed('bre',$crs_sec))) {
1117: $viewsrcbutton = 1;
1118: }
1119: }
1120: }
1121: if ($viewsrcbutton) {
1122: my $icon = 'pcstr.png';
1123: my $label = &mt('View Source');
1124: my $title = &mt('View source code');
1125: my $jsrid = $rid;
1126: $jsrid =~ s/\./_/g;
1127: my $showurl = &escape(&Apache::lonenc::check_encrypt($url));
1128: my $pic = '<img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/'.$icon).'"'.
1129: ' class="LC_icon" alt="'.$label.'" title="'.$title.'" />';
1130: $metainfo .= ' <a href="javascript:open_source_'.$jsrid.'();">'.$pic.'</a>'."\n".
1131: '<script type="text/javascript">'."\n".
1132: "function open_source_$jsrid() {\n".
1133: " sourcewin=window.open('/adm/source?inhibitmenu=yes&viewonly=1&filename=$showurl','LONsource',".
1134: "'height=500,width=600,resizable=yes,location=no,menubar=no,toolbar=no,scrollbars=yes');\n".
1135: "}\n".
1136: "</script>\n";
1137: }
1138: }
1139: }
1140: return $metainfo;
1141: }
1142:
1143: sub add_countdown_timer {
1144: my ($currdisp,$donebuttontime,$donebuttonextras) = @_;
1145: my ($collapse,$expand,$alttxt,$title,$donebutton);
1146: if ($currdisp eq 'inline') {
1147: $collapse = '► ';
1148: } else {
1149: $expand = '◄ ';
1150: }
1151: if ($donebuttontime) {
1152: my ($type,$proctor,$donebuttontext);
1153: if (ref($donebuttonextras) eq 'HASH') {
1154: $proctor = $donebuttonextras->{'proctor'};
1155: $donebuttontext = $donebuttonextras->{'text'};
1156: $type = $donebuttonextras->{'type'};
1157: } else {
1158: $donebuttontext = &mt('Done');
1159: $type = 'map';
1160: }
1161: $donebutton =
1162: &Apache::lonmenu::done_button_js($type,'','',$proctor,$donebuttontext);
1163: }
1164: unless ($env{'environment.icons'} eq 'iconsonly') {
1165: $alttxt = &mt('Timer');
1166: $title = $alttxt.' ';
1167: }
1168: my $desc = &mt('Countdown to due date/time');
1169: my $output = <<END;
1170: $donebutton
1171: <a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
1172: <span id="ddcountcollapse" class="LC_menubuttons_inline_text">
1173: $collapse
1174: </span></a>
1175: <span id="duedatecountdown" class="LC_menubuttons_inline_text" style="display: $currdisp;"></span>
1176: <a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
1177: <span id="ddcountexpand" class="LC_menubuttons_inline_text" >$expand</span>
1178: <img src="/res/adm/pages/timer.png" title="$desc" class="LC_icon" alt="$alttxt" /><span class="LC_menubuttons_inline_text">$title</span></a>
1179: END
1180: &Apache::lonhtmlcommon::add_breadcrumb_tool('tools',$output);
1181: return;
1182: }
1183:
1184: sub create_extlink {
1185: my ($url,$anchor,$title,$linktext) = @_;
1186: my $shownlink;
1187: unless ($title eq '') {
1188: $shownlink = '<span style="font-weight:bold;">'.$title.'</span><br />';
1189: }
1190: my $dest = &HTML::Entities::encode($url.$anchor,'&<>"');
1191: $shownlink .= '<a href="'.$dest.'">'.$linktext.'</a>';
1192: return $shownlink;
1193: }
1194:
1195: 1;
1196: __END__
1197:
1198:
1199: =head1 NAME
1200:
1201: Apache::lonpage - Page Handler
1202:
1203: =head1 SYNOPSIS
1204:
1205: Invoked by /etc/httpd/conf/srm.conf:
1206:
1207: <LocationMatch "^/res/.*\.page$>
1208: SetHandler perl-script
1209: PerlHandler Apache::lonpage
1210: </LocationMatch>
1211:
1212: =head1 INTRODUCTION
1213:
1214: This module renders a .page resource.
1215:
1216: This is part of the LearningOnline Network with CAPA project
1217: described at http://www.lon-capa.org.
1218:
1219: =head1 HANDLER SUBROUTINE
1220:
1221: This routine is called by Apache and mod_perl.
1222:
1223: =over 4
1224:
1225: =item *
1226:
1227: set document type for header only
1228:
1229: =item *
1230:
1231: tie db file
1232:
1233: =item *
1234:
1235: render page
1236:
1237: =item *
1238:
1239: add to symb list
1240:
1241: =item *
1242:
1243: page parms
1244:
1245: =item *
1246:
1247: Get SSI output, post parameters
1248:
1249: =item *
1250:
1251: SSI cell rendering
1252:
1253: =item *
1254:
1255: Deal with Applet codebases
1256:
1257: =item *
1258:
1259: Build page
1260:
1261: =item *
1262:
1263: send headers
1264:
1265: =item *
1266:
1267: start body
1268:
1269: =item *
1270:
1271: start form
1272:
1273: =item *
1274:
1275: start table
1276:
1277: =item *
1278:
1279: submit element, etc, render page, untie hash
1280:
1281: =back
1282:
1283: =head1 OTHER SUBROUTINES
1284:
1285: =over 4
1286:
1287: =item *
1288:
1289: euclid() : Euclid's method for determining the greatest common denominator.
1290:
1291: =item *
1292:
1293: tracetable() : Build page table.
1294:
1295: =back
1296:
1297: =cut
1298:
1299:
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