Annotation of rat/lonpage.pm, revision 1.140
1.1 www 1: # The LearningOnline Network with CAPA
2: # Page Handler
3: #
1.140 ! raeburn 4: # $Id: lonpage.pm,v 1.139 2020/11/10 23:55:32 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;
1.96 raeburn 271: my %turninpaths;
272: my %multiresps;
273: my $turninparent;
1.6 www 274:
275: my %ssibody=();
276: my %ssibgcolor=();
277: my %ssitext=();
278: my %ssilink=();
279: my %ssivlink=();
280: my %ssialink=();
1.139 raeburn 281: my %cssrefs=();
282: my %httpref=();
1.14 www 283:
1.6 www 284: my %cellemb=();
1.99 raeburn 285: my %cellexternal=();
1.3 www 286:
1.7 www 287: my $allscript='';
288: my $allmeta='';
289:
290: my $isxml=0;
291: my $xmlheader='';
292: my $xmlbody='';
293:
1.112 raeburn 294: # ---------------------------------------------------------- Handle Done button
295:
296: # Set the event timer to zero if the "done button" was clicked.
297: if ($donetime && $symbtosetdone) {
298: &Apache::lonparmset::storeparm_by_symb_inner($symbtosetdone,'0_interval',
299: 2,$donetime,'date_interval',
300: $name,$domain);
301: undef($env{'form.LC_interval_done'});
302: }
303:
1.3 www 304: # --------------------------------------------- Get SSI output, post parameters
305:
1.2 www 306: for ($i=0;$i<=$#rows;$i++) {
1.4 www 307: if ($rows[$i]) {
1.6 www 308: $contents++;
1.3 www 309: my @colcont=split(/\&/,$rows[$i]);
1.6 www 310: $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
1.30 harris41 311: foreach (@colcont) {
1.3 www 312: my $src=$hash{'src_'.$_};
1.120 raeburn 313: my $plainsrc = $src;
1.135 raeburn 314: my $anchor;
1.134 raeburn 315: if ($hash{'ext_'.$_} eq 'true:') {
316: $cellexternal{$_}=($hash{'ext_'.$_} eq 'true:');
317: $src =~ s{^/ext/}{http://};
318: $src =~ s{http://https://}{https://};
1.135 raeburn 319: if ($src =~ /(\#[^#]+)$/) {
320: $anchor = $1;
321: $src =~ s/\#[^#]+$//;
322: }
1.134 raeburn 323: }
1.135 raeburn 324: my $unencsrc = $src;
1.99 raeburn 325: my ($extension)=($src=~/\.(\w+)$/);
1.61 albertel 326: if ($hash{'encrypted_'.$_}) {
327: $src=&Apache::lonenc::encrypted($src);
328: }
1.119 raeburn 329: my ($mapid,$resid)=split(/\./,$_);
1.134 raeburn 330: my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$plainsrc);
1.119 raeburn 331: unless ($env{'request.role.adv'}) {
332: $buttonshide{$symb} = &Apache::lonnet::EXT("resource.0.buttonshide",$symb);
333: }
1.61 albertel 334: $cellemb{$_}=
335: &Apache::loncommon::fileembstyle($extension);
1.99 raeburn 336: if ($cellexternal{$_}) {
1.134 raeburn 337: if (($target eq 'tex') || ($target eq 'tex_answer')) {
1.135 raeburn 338: my $shown = $src.$anchor;
339: if (($hash{'encrypted_'.$_}) && (!$env{'request.role.adv'})) {
1.134 raeburn 340: $shown = &mt('URL not shown (encrypted)');
341: }
342: my $title=&Apache::lonnet::gettitle($symb);
343: $title = &Apache::lonxml::latex_special_symbols($title);
1.135 raeburn 344: $shown = &Apache::lonxml::latex_special_symbols($shown);
1.134 raeburn 345: $ssibody{$_} = ' \strut \\\\ \textit{'.$title.'} \strut \\\\ '.$shown.'\\\\';
346: } else {
347: my $showsrc = $src;
1.135 raeburn 348: my ($is_pdf,$title,$linktext);
349: if ($unencsrc =~ /\.pdf$/i) {
350: $is_pdf = 1;
351: }
1.134 raeburn 352: if (($hash{'encrypted_'.$_}) && ($symb)) {
1.135 raeburn 353: $title=&Apache::lonnet::gettitle(&Apache::lonenc::encrypted($symb));
354: } else {
355: $title=&Apache::lonnet::gettitle($symb);
1.134 raeburn 356: }
1.135 raeburn 357: if ($env{'browser.mobile'}) {
358: if ($is_pdf) {
359: $linktext = &mt('Link to PDF (for mobile devices)');
360: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
361: } else {
362: $linktext = &mt('Link to resource');
363: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
364: }
365: } else {
366: my $absolute = $env{'request.use_absolute'};
367: my $uselink = &Apache::loncommon::is_nonframeable($unencsrc,$absolute,$hostname,$ip);
368: if (($uselink) || (($ENV{'SERVER_PORT'} == 443) && ($unencsrc =~ m{^http://}))) {
369: $linktext = &mt('Link to resource');
370: $ssibody{$_} = &create_extlink($unencsrc,$anchor,$title,$linktext);
371: } else {
372: if (($hash{'encrypted_'.$_}) && ($symb) && (!$env{'request.role.adv'})) {
373: $showsrc .= '?symb='.&Apache::lonenc::encrypted($symb);
374: } elsif ($anchor) {
1.138 raeburn 375: $showsrc .= $anchor;
1.135 raeburn 376: }
377: $ssibody{$_} = <<ENDEXT;
378: <iframe src="$showsrc" width="100%" height="300px">No iframe support!</iframe>
1.99 raeburn 379: ENDEXT
1.135 raeburn 380: }
381: }
1.99 raeburn 382: }
383: } elsif ($cellemb{$_} eq 'ssi') {
1.3 www 384: # --------------------------------------------------------- This is an SSI cell
1.126 raeburn 385: my $prefix='p_'.$_.'_';
386: my $idprefix= 'p_'.join('_',($mapid,$resid,''));
1.64 albertel 387: my %posthash=('request.prefix' => $prefix,
1.71 albertel 388: 'LONCAPA_INTERNAL_no_discussion' => 'true',
1.64 albertel 389: 'symb' => $symb);
1.94 raeburn 390: if (($env{'form.grade_target'} eq 'tex') ||
391: ($env{'form.answer_output_mode'} eq 'tex')) {
1.70 albertel 392: $posthash{'grade_target'}=$env{'form.grade_target'};
393: $posthash{'textwidth'}=$env{'form.textwidth'};
394: $posthash{'problem_split'}=$env{'form.problem_split'};
395: $posthash{'latex_type'}=$env{'form.latex_type'};
396: $posthash{'rndseed'}=$env{'form.rndseed'};
1.94 raeburn 397: $posthash{'answer_output_mode'} = $env{'form.answer_output_mode'};
1.56 sakharuk 398: }
1.127 raeburn 399: my $submitted=$env{'form.all_submit_pressed'};
1.72 albertel 400: if (!$submitted) {
401: foreach my $key (keys(%env)) {
1.127 raeburn 402: if ($key=~/^\Qform.$prefix\Esubmit_(.+)_pressed$/) {
403: if ($env{$key}) {
404: $submitted=1;
405: last;
406: }
1.72 albertel 407: }
1.127 raeburn 408: }
1.72 albertel 409: }
410: if ($submitted) {
411: foreach my $key (keys(%env)) {
1.127 raeburn 412: if ($key=~/^\Qform.$prefix\E/) {
1.72 albertel 413: my $name=$key;
1.127 raeburn 414: $name=~s/^\Qform.$prefix\E//;
1.72 albertel 415: $posthash{$name}=$env{$key};
1.127 raeburn 416: }
1.72 albertel 417: }
1.127 raeburn 418: if ($env{'form.all_submit_pressed'}) {
1.72 albertel 419: $posthash{'all_submit'}='yes';
420: }
1.129 raeburn 421: } elsif ($env{'form.'.$prefix.'markaccess'} eq 'yes') {
422: $posthash{'markaccess'} = $env{'form.'.$prefix.'markaccess'};
423: }
1.5 www 424: my $output=Apache::lonnet::ssi($src,%posthash);
1.77 albertel 425: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.94 raeburn 426: if (($target eq 'tex') || ($target eq 'tex_answer')) {
1.118 raeburn 427: $output =~ s/^([^&]+)\\begin\{document}//;
428: $output =~ s/\\end\{document}//;
1.92 foxr 429: # $output = '\parbox{\minipagewidth}{ '.$output.' }';
1.46 sakharuk 430: #some additional cleanup necessary for LateX (due to limitations of table environment
431: $output =~ s/(\\vskip\s*\d+mm)\s*(\\\\)+/$1/g;
432: }
1.107 raeburn 433: my $matheditor;
434: if ($output =~ /\Qjavascript:LC_mathedit_HWVAL_\E/) {
435: $matheditor = 'dragmath';
436: } elsif ($output =~ /LCmathField/) {
437: $matheditor = 'lcmath';
438: }
1.6 www 439: my $parser=HTML::TokeParser->new(\$output);
440: my $token;
1.12 www 441: my $thisdir=$src;
1.6 www 442: my $bodydef=0;
1.7 www 443: my $thisxml=0;
1.12 www 444: my @rlinks=();
1.139 raeburn 445: my @css_hrefs=();
1.7 www 446: if ($output=~/\?xml/) {
447: $isxml=1;
448: $thisxml=1;
449: $output=~
450: /((?:\<(?:\?xml|\!DOC|html)[^\>]*(?:\>|\>\]\>)\s*)+)\<body[^\>]*\>/si;
451: $xmlheader=$1;
452: }
1.12 www 453: while ($token=$parser->get_token) {
454: if ($token->[0] eq 'S') {
455: if ($token->[1] eq 'a') {
456: if ($token->[2]->{'href'}) {
457: $rlinks[$#rlinks+1]=
458: $token->[2]->{'href'};
459: }
460: } elsif ($token->[1] eq 'img') {
461: $rlinks[$#rlinks+1]=
462: $token->[2]->{'src'};
463: } elsif ($token->[1] eq 'embed') {
464: $rlinks[$#rlinks+1]=
465: $token->[2]->{'src'};
466: } elsif ($token->[1] eq 'base') {
467: $thisdir=$token->[2]->{'href'};
468: } elsif ($token->[1] eq 'body') {
1.7 www 469: $bodydef=1;
470: $ssibgcolor{$_}=$token->[2]->{'bgcolor'};
471: $ssitext{$_}=$token->[2]->{'text'};
472: $ssilink{$_}=$token->[2]->{'link'};
473: $ssivlink{$_}=$token->[2]->{'vlink'};
474: $ssialink{$_}=$token->[2]->{'alink'};
475: if ($thisxml) {
476: $xmlbody=$token->[4];
477: }
1.12 www 478: } elsif ($token->[1] eq 'meta') {
1.28 albertel 479: if ($token->[4] !~ m:/>$:) {
1.7 www 480: $allmeta.="\n".$token->[4].'</meta>';
1.28 albertel 481: } else {
482: $allmeta.="\n".$token->[4];
483: }
1.12 www 484: } elsif (($token->[1] eq 'script') &&
485: ($bodydef==0)) {
1.7 www 486: $allscript.="\n\n"
487: .$parser->get_text('/script');
1.139 raeburn 488: } elsif (($token->[1] eq 'link') &&
489: ($bodydef==0)) {
490: if (($token->[2]->{'href'} !~ m{^/adm/}) &&
491: ($token->[2]->{'rel'} eq 'stylesheet')) {
492: $css_hrefs[$#css_hrefs+1]=
493: $token->[2]->{'href'};
494:
495: }
1.6 www 496: }
1.12 www 497: }
498: }
1.6 www 499: if ($output=~/\<body[^\>]*\>(.*)/si) {
500: $output=$1;
501: }
502: $output=~s/\<\/body\>.*//si;
1.7 www 503: if ($output=~/\<form/si) {
1.110 raeburn 504: my $hastimer;
1.7 www 505: $nforms++;
506: $output=~s/\<form[^\>]*\>//gsi;
507: $output=~s/\<\/form[^\>]*\>//gsi;
1.96 raeburn 508: if ($output=~/\<input[^\>]+name\s*=\s*[\'\"]*HWFILE/) {
509: $nuploads++;
510: }
1.110 raeburn 511: if ($output=~/\<input[^\>]+name\s*=\s*[\'\"]*accessbutton/) {
512: $ntimers++;
513: $hastimer = 1;
514: }
1.17 www 515: $output=~
1.80 albertel 516: s/\<((?:input|select|button|textarea)[^\>]+)name\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 name="$prefix$2" $3\>/gsi;
1.101 raeburn 517: $output=~
518: s/\<((?:input|select|button|textarea)[^\>]+)id\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 id="$idprefix$2" $3\>/gsi;
1.123 raeburn 519: $output=~
1.124 raeburn 520: s/(\Qthis.form.elements['\E)(HW(?:VAL|CHK)_[^']+\'\]\.(?:value=\'|checked))/$1$prefix$2/gsi;
1.110 raeburn 521: if ($hastimer) {
522: $output=~
523: s/\<(input[^\>]+name=\Q"$prefix\Eaccessbutton"[^\>]+)(?:\Qdocument.markaccess.submit();\E)([^\>]*)\>/\<$1pageTimer(this.form,'$prefix')$2\>/gsi;
524: $output=~ s/\<(input[^\>]+name=\Q"$prefix\Emarkaccess"[^\>]+value=["'])(?:yes)(['"][^\>]*)\>/\<$1$2\>/gsi;
525: }
1.107 raeburn 526: if ($matheditor eq 'dragmath') {
527: $output=~
528: s/(\Qjavascript:LC_mathedit_\E)(HWVAL_)([^'"]+?)(\(['"]*)(\QHWVAL_\E\3['"]\)\;void\(0\)\;)/$1$idprefix$2$3$4$idprefix$5/g;
529: $output=~
530: s/(function\s+LC_mathedit_)(HWVAL_)([^'"]+?)(\s+\(LCtextline\))/$1$idprefix$2$3$4/g;
531: } elsif ($matheditor eq 'lcmath') {
532: $output=~
533: s/(var\s+LCmathField\s+=\s+document\.getElementById\(['"])([^'"]+?)(['"]\)\;)/$1$idprefix$2$3/g;
534: }
1.105 raeburn 535: $output=~
536: s/(\Q<div id="msg_\E)(\Qsubmit_\E)([^"]*)(\Q" style="display:none">\E)/<input type="hidden" name="$prefix$2$3_pressed" id="$idprefix$2$3_pressed" value="" \/>$1$idprefix$2$3$4/g;
537: $output=~
538: s/(\Q<td class="LC_status_\E)(\Qsubmit_\E)([^\"]*)(\s*[^\"]*"\>)/$1$idprefix$2$3$4/g;
1.96 raeburn 539: if ($nuploads) {
540: ($turninpaths{$prefix},$multiresps{$prefix}) =
541: &Apache::loncommon::get_turnedin_filepath($symb,$env{'user.name'},$env{'user.domain'});
542: if ($turninparent eq '') {
543: $turninparent = $turninpaths{$prefix};
544: $turninparent =~ s{(/[^/]+)$}{};
545: }
546: }
1.95 raeburn 547: $output=~
548: s/\<((?:input|select)[^\>]+\Qjavascript:setSubmittedPart\E)\(\s*[\'\"]([^\'\"]+)[\'\"]*\s*\)/\<$1('$2','$prefix')/gsi;
1.108 raeburn 549: $output=~
550: s/\<(input[^\>]+\Qonfocus=\"javascript:disableAutoComplete\E)\(\'([^\']+)\'\)(;\")/\<$1('$idprefix$2')$3/gsi;
1.111 raeburn 551: unless ($hastimer) {
1.120 raeburn 552: if ($plainsrc =~ /$LONCAPA::assess_re/) {
1.111 raeburn 553: %Apache::lonhomework::history =
554: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
555: my $type = 'problem';
1.120 raeburn 556: if ($extension eq 'task') {
1.111 raeburn 557: $type = 'Task';
558: }
559: my ($status,$accessmsg,$slot_name,$slot) =
1.117 raeburn 560: &Apache::lonhomework::check_slot_access('0',$type,$symb);
1.111 raeburn 561: undef(%Apache::lonhomework::history);
562: my $probstatus = &Apache::lonnet::EXT("resource.0.problemstatus",$symb);
563: if (($status eq 'CAN_ANSWER') || (($status eq 'CANNOT_ANSWER') &&
1.114 raeburn 564: (($probstatus eq 'no') || ($probstatus eq 'no_feedback_ever'))) ||
565: (($status eq 'NOT_YET_VIEWED') && ($posthash{'markaccess'} eq 'yes'))) {
1.111 raeburn 566: my ($slothastime,$timerhastime);
567: if ($slot_name ne '') {
568: if (ref($slot) eq 'HASH') {
569: if (($slot->{'starttime'} < $now) &&
570: ($slot->{'endtime'} > $now)) {
571: $slothastime = $now - $slot->{'endtime'};
572: }
573: }
574: }
575: my $duedate = &Apache::lonnet::EXT("resource.0.duedate",$symb);
576: my @interval=&Apache::lonnet::EXT("resource.0.interval",$symb);
577: if (@interval > 1) {
1.114 raeburn 578: my $first_access;
1.115 raeburn 579: if ($interval[1] eq 'map') {
580: my $ignorecache;
581: if ($env{'form.'.$prefix.'markaccess'} eq 'yes') {
582: $ignorecache = 1;
1.114 raeburn 583: }
1.115 raeburn 584: $first_access=&Apache::lonnet::get_first_access($interval[1],undef,$pagesymb,$ignorecache);
585: if (($first_access) && (!$pagefirstaccess)) {
586: $pagefirstaccess = $first_access;
1.114 raeburn 587: }
1.115 raeburn 588: } else {
589: $first_access=&Apache::lonnet::get_first_access($interval[1],$symb);
590: }
591: if ($first_access > 0) {
1.114 raeburn 592: my ($timelimit) = ($interval[0] =~ /^(\d+)/);
1.115 raeburn 593: if ($timelimit) {
594: my $timeremains = $timelimit + $first_access - $now;
595: if ($timeremains > 0) {
596: $timerhastime = $timeremains;
597: }
1.111 raeburn 598: }
599: }
600: }
601: if (($duedate && $duedate > $now) ||
602: (!$duedate && $timerhastime > 0) ||
603: ($slot_name ne '' && $slothastime)) {
604: if ((@interval > 1 && $timerhastime) ||
605: ($type eq 'Task' && $slothastime)) {
606: $countdowndisp{$symb} = 'inline';
607: if ((@interval > 1) && ($timerhastime)) {
608: $hastimeleft{$symb} = $timerhastime;
1.112 raeburn 609: if ($pagefirstaccess) {
1.114 raeburn 610: my ($timelimit,$usesdone,$donebuttontext,$proctor,$secret);
611: ($timelimit,my $donesuffix) = split(/_/,$interval[0],2);
612: if ($donesuffix =~ /^done\:([^\:]+)\:(.*)$/) {
613: $usesdone = 'done';
614: $donebuttontext = $1;
615: (undef,$proctor,$secret) = split(/_/,$2);
616: } elsif ($donesuffix =~ /^done(|_.+)$/) {
617: $donebuttontext = &mt('Done');
618: ($usesdone,$proctor,$secret) = split(/_/,$donesuffix);
619: }
620: if ($usesdone eq 'done') {
621: $donebutton{$symb} = $timelimit;
622: push(@{$buttonbytime{$timelimit}},$symb);
623: $donebtnextra{$symb} = {
624: text => $donebuttontext,
625: proctor => $proctor,
626: secret => $secret,
627: type => $interval[1],
628: };
629: }
1.112 raeburn 630: }
1.111 raeburn 631: } else {
632: $hastimeleft{$symb} = $slothastime;
633: }
634: } else {
635: $hastimeleft{$symb} = $duedate - $now;
636: $countdowndisp{$symb} = 'none';
637: }
1.112 raeburn 638: unless ($donebutton{$symb}) {
1.114 raeburn 639: $donebutton{$symb} = 0;
1.112 raeburn 640: }
1.111 raeburn 641: }
642: }
643: }
644: }
1.7 www 645: }
1.12 www 646: $thisdir=~s/\/[^\/]*$//;
1.30 harris41 647: foreach (@rlinks) {
1.91 raeburn 648: unless (($_=~/^https?\:\/\//i) ||
1.31 albertel 649: ($_=~/^\//) ||
650: ($_=~/^javascript:/i) ||
651: ($_=~/^mailto:/i) ||
652: ($_=~/^\#/)) {
1.12 www 653: my $newlocation=
654: &Apache::lonnet::hreflocation($thisdir,$_);
655: $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
656: }
1.30 harris41 657: }
1.139 raeburn 658: foreach my $css_href (@css_hrefs) {
659: next if ($css_href eq '');
660: unless ($css_href =~ m{https?://}) {
661: my $proburl = &Apache::lonnet::clutter($plainsrc);
662: unless ($css_href =~ m{^/}) {
663: my $probdir = $proburl;
664: $probdir=~s/\/[^\/]*$//;
665: $css_href = &Apache::lonnet::hreflocation($probdir,$css_href);
666: }
667: if ($css_href =~ m{^/(res|uploaded)/}) {
668: unless (($env{'httpref.'.$css_href}) ||
669: ($httpref{'httpref.'.$css_href}) ||
670: (&Apache::lonnet::is_on_map($css_href))) {
671: if ($env{'httpref.'.$proburl}) {
672: $proburl = $env{'httpref.'.$proburl};
673: }
674: $httpref{'httpref.'.$css_href} = $proburl;
675: }
676: }
677: }
678: $cssrefs{$css_href} = 1;
679: }
1.24 www 680: # -------------------------------------------------- Deal with Applet codebases
681: $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
1.5 www 682: $ssibody{$_}=$output;
1.3 www 683: # ---------------------------------------------------------------- End SSI cell
684: }
1.30 harris41 685: }
1.4 www 686: }
1.2 www 687: }
1.6 www 688: unless ($contents) {
1.53 www 689: &Apache::loncommon::content_type($r,'text/html');
1.3 www 690: $r->send_http_header;
1.74 albertel 691: $r->print(&Apache::loncommon::start_page(undef,undef,
692: {'force_register' => 1,}));
1.59 raeburn 693: $r->print(&mt('This page is either empty or it only contains resources that are currently hidden').'. ');
1.74 albertel 694: $r->print('<br /><br />'.&mt('Please use the LON-CAPA navigation arrows to move to another item in the course').
695: &Apache::loncommon::end_page());
1.3 www 696: } else {
697: # ------------------------------------------------------------------ Build page
1.7 www 698:
699: # ---------------------------------------------------------------- Send headers
1.94 raeburn 700: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 701: if ($isxml) {
1.53 www 702: &Apache::loncommon::content_type($r,'text/xml');
1.37 sakharuk 703: } else {
1.53 www 704: &Apache::loncommon::content_type($r,'text/html');
1.37 sakharuk 705: }
1.74 albertel 706: $r->send_http_header;
1.7 www 707: # ------------------------------------------------------------------------ Head
1.37 sakharuk 708: if ($allscript) {
1.85 albertel 709: $allscript =
710: "\n".'<script type="text/javascript">'."\n".
711: $allscript.
712: "\n</script>\n";
1.37 sakharuk 713: }
1.96 raeburn 714: if (($nforms) && ($nuploads)) {
1.128 raeburn 715: $allscript .= &Apache::lonhtmlcommon::file_submissionchk_js(\%turninpaths,\%multiresps).
716: '<script type="text/javascript" '.
717: 'src="/res/adm/includes/file_upload.js"></script>';
1.96 raeburn 718: }
1.101 raeburn 719: if (($nforms) && (&Apache::lonhtmlcommon::htmlareabrowser())) {
720: my %textarea_args = (
721: dragmath => 'math',
722: );
723: $allscript .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
724: }
1.110 raeburn 725: if ($ntimers) {
726: $allscript .= '<script type="text/javascript">'."\n".
727: '// <![CDATA['."\n".
728: 'function pageTimer(form,prefix) {'."\n".
729: " form.elements[prefix+'markaccess'].value = 'yes';\n".
730: " form.submit();\n".
731: '}'."\n".
732: '// ]]>'.
733: "\n</script>\n";
734: }
1.133 raeburn 735: &Apache::lonhtmlcommon::clear_breadcrumb_tools();
1.111 raeburn 736: if (keys(%hastimeleft)) {
737: my (%uniquetimes,%uniquedisplays);
738: foreach my $item (values(%hastimeleft)) {
739: if (exists($uniquetimes{$item})) {
740: $uniquetimes{$item} ++;
741: } else {
742: $uniquetimes{$item} = 1;
743: }
744: }
1.114 raeburn 745: if (scalar(keys(%uniquetimes)) == 1) {
746: my (%uniquedisplays,%uniquedones,$currdisp,$donebuttontime,
747: $donebuttonextras);
1.111 raeburn 748: if (keys(%countdowndisp)) {
749: foreach my $item (values(%countdowndisp)) {
750: if (exists($uniquedisplays{$item})) {
751: $uniquedisplays{$item} ++;
752: } else {
753: $uniquedisplays{$item} = 1;
754: }
755: }
756: my @countdowndisplay = keys(%uniquedisplays);
757: if (scalar(@countdowndisplay) == 1) {
758: $currdisp = $countdowndisplay[0];
759: }
760: }
1.112 raeburn 761: if (keys(%donebutton)) {
762: foreach my $item (values(%donebutton)) {
763: if (exists($uniquedones{$item})) {
764: $uniquedones{$item} ++;
765: } else {
766: $uniquedones{$item} = 1;
767: }
768: }
769: my @donebuttons = sort { $ <=> $b } (keys(%uniquedones));
770: if (scalar(@donebuttons) == 1) {
771: if ($donebuttons[0]) {
772: $donebuttontime = $donebuttons[0];
1.114 raeburn 773: if (ref($buttonbytime{$donebuttontime}) eq 'ARRAY') {
774: $donebuttonextras = $donebtnextra{$buttonbytime{$donebuttontime}->[0]};
775: }
1.112 raeburn 776: }
777: }
778: }
1.114 raeburn 779: &add_countdown_timer($currdisp,$donebuttontime,$donebuttonextras);
1.111 raeburn 780: }
781: }
1.119 raeburn 782: my $pagebuttonshide;
783: if (keys(%buttonshide)) {
784: my %uniquebuttonhide;
785: foreach my $item (values(%buttonshide)) {
786: if (exists($uniquebuttonhide{$item})) {
787: $uniquebuttonhide{$item} ++;
788: } else {
789: $uniquebuttonhide{$item} = 1;
790: }
791: }
792: if (keys(%uniquebuttonhide) == 1) {
793: if (lc((keys(%uniquebuttonhide))[0]) eq 'yes') {
794: $pagebuttonshide = 'yes';
795: }
796: }
797: }
1.139 raeburn 798: if (keys(%cssrefs)) {
799: my $links;
800: if (keys(%cssrefs)) {
801: foreach my $css_href (keys(%cssrefs)) {
802: next unless ($css_href =~ m{^(/res/|/uploaded/|https?://)});
803: $links .= '<link rel="stylesheet" type="text/css" href="'.$css_href.'" />'."\n";
804: }
805: }
806: if ($links) {
807: if (keys(%httpref)) {
808: &Apache::lonnet::appenv(\%httpref);
809: }
810: $allscript .= "\n$links";
811: }
812: }
1.7 www 813: # ------------------------------------------------------------------ Start body
1.85 albertel 814: $r->print(&Apache::loncommon::start_page(undef,$allscript,
1.74 albertel 815: {'force_register' => 1,
1.119 raeburn 816: 'bgcolor' => '#ffffff',
817: 'hide_buttons' => $pagebuttonshide}));
1.7 www 818: # ------------------------------------------------------------------ Start form
1.37 sakharuk 819: if ($nforms) {
1.96 raeburn 820: my $fmtag = '<form name="lonhomework" method="post" enctype="multipart/form-data"';
821: if ($nuploads) {
822: my $multi;
823: if ($nuploads > 1) {
824: $multi = 1;
825: }
826: $fmtag .= 'onsubmit="return file_submission_check(this,'."'$turninparent','$multi'".');"';
827: }
828: $fmtag .= ' action="'.
1.61 albertel 829: &Apache::lonenc::check_encrypt($requrl)
1.105 raeburn 830: .'" id="LC_page">';
1.96 raeburn 831: $r->print($fmtag);
1.40 sakharuk 832: }
1.94 raeburn 833: } elsif (($target eq 'tex') || ($target eq 'tex_answer')) {
1.92 foxr 834: # I think this is not needed as the header
835: # will be put in for each of the page parts
836: # by the londefdef.pm now that we are opening up
837: # the parts of a page.
838: #$r->print('\documentclass{article}
839: # \newcommand{\keephidden}[1]{}
840: # \usepackage[dvips]{graphicx}
841: # \usepackage{epsfig}
842: # \usepackage{calc}
843: # \usepackage{longtable}
844: # \begin{document}');
1.40 sakharuk 845: }
1.7 www 846: # ----------------------------------------------------------------- Start table
1.94 raeburn 847: if (($target eq 'tex') || ($target eq 'tex_answer')) {
1.92 foxr 848: # # $r->print('\begin{longtable}INSERTTHEHEADOFLONGTABLE\endfirsthead\endhead ');
1.43 sakharuk 849: if ($number_of_columns le $lcm) {$number_of_columns=$lcm;};
1.40 sakharuk 850: } else {
1.63 albertel 851: $r->print('<table width="100%" cols="'.$lcm.'" border="0">');
1.37 sakharuk 852: }
1.78 www 853: # generate rows
1.5 www 854: for ($i=0;$i<=$#rows;$i++) {
855: if ($rows[$i]) {
1.94 raeburn 856: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 857: $r->print("\n<tr>");
858: }
1.4 www 859: my @colcont=split(/\&/,$rows[$i]);
1.6 www 860: my $avespan=$lcm/($#colcont+1);
861: for ($j=0;$j<=$#colcont;$j++) {
862: my $rid=$colcont[$j];
1.122 raeburn 863: my $metainfo =&get_buttons(\%hash,$rid,\%buttonshide,$hostname).'<br />';
1.94 raeburn 864: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 865: $r->print('<td colspan="'.$avespan.'"');
866: }
1.99 raeburn 867: if (($cellemb{$rid} eq 'ssi') || ($cellexternal{$rid})) {
1.94 raeburn 868: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 869: if ($ssibgcolor{$rid}) {
870: $r->print(' bgcolor="'.
871: $ssibgcolor{$rid}.'"');
872: }
873: $r->print('>'.$metainfo.'<font');
874:
875: if ($ssitext{$rid}) {
876: $r->print(' text="'.$ssitext{$rid}.'"');
877: }
878: if ($ssilink{$rid}) {
879: $r->print(' link="'.$ssilink{$rid}.'"');
880: }
881: if ($ssitext{$rid}) {
882: $r->print(' vlink="'.$ssivlink{$rid}.'"');
883: }
884: if ($ssialink{$rid}) {
885: $r->print(' alink="'.$ssialink{$rid}.'"');
886: }
887: $r->print('>');
888: }
1.135 raeburn 889: $r->print($ssibody{$rid});
1.94 raeburn 890: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 891: $r->print('</font>');
1.41 www 892: }
1.70 albertel 893: if ($env{'course.'.
894: $env{'request.course.id'}.
1.41 www 895: '.pageseparators'} eq 'yes') {
1.94 raeburn 896: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.41 www 897: $r->print('<hr />');
1.77 albertel 898: }
1.37 sakharuk 899: }
900: } elsif ($cellemb{$rid} eq 'img') {
1.14 www 901: $r->print('>'.$metainfo.'<img src="'.
1.77 albertel 902: $hash{'src_'.$rid}.'" />');
1.13 www 903: } elsif ($cellemb{$rid} eq 'emb') {
1.14 www 904: $r->print('>'.$metainfo.'<embed src="'.
1.13 www 905: $hash{'src_'.$rid}.'"></embed>');
1.60 raeburn 906: } elsif (&Apache::lonnet::declutter($hash{'src_'.$rid}) !~/\.(sequence|page)$/) {
1.104 raeburn 907: $r->print($metainfo.'<b>'.$hash{'title_'.$rid}.'</b><br />');
908: unless ($cellemb{$rid} eq 'wrp') {
909: $r->print(&mt('It is recommended that you use an up-to-date virus scanner before handling this file.'));
910: }
911: $r->print('</p><p><table>'.
912: &Apache::londocs::entryline(0,
913: &mt("Click to download or use your browser's Save Link function"),
914: '/'.&Apache::lonnet::declutter($hash{'src_'.$rid})).
915: '</table></p><br />');
1.13 www 916: }
1.94 raeburn 917: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 918: $r->print('</td>');
1.40 sakharuk 919: } else {
1.92 foxr 920: # for (my $incol=1;$incol<=$avespan;$incol++) {
921: # $r->print(' & ');
922: # }
1.37 sakharuk 923: }
1.4 www 924: }
1.94 raeburn 925: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 926: $r->print('</tr>');
1.40 sakharuk 927: } else {
1.92 foxr 928: # $r->print('REMOVETHEHEADOFLONGTABLE\\\\');
1.37 sakharuk 929: }
1.5 www 930: }
1.4 www 931: }
1.94 raeburn 932: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.37 sakharuk 933: $r->print("\n</table>");
1.40 sakharuk 934: } else {
1.92 foxr 935: # $r->print('\end{longtable}\strut');
1.37 sakharuk 936: }
1.7 www 937: # ---------------------------------------------------------------- Submit, etc.
938: if ($nforms) {
1.106 raeburn 939: my $class;
940: if ($nforms > 1) {
941: $class = ' class="LC_hwk_submit"';
1.110 raeburn 942: if ($ntimers) {
943: $nforms = 1;
944: $class = '';
945: }
1.106 raeburn 946: }
1.7 www 947: $r->print(
1.103 bisitz 948: '<input name="all_submit" value="'.&mt('Submit All').'" type="'.
1.106 raeburn 949: (($nforms>1)?'submit':'hidden').'"'.$class.' id="all_submit" />'.
1.127 raeburn 950: '<input type="hidden" name="all_submit_pressed" '.
951: 'id="all_submit_pressed" value="" />'.
1.106 raeburn 952: '<div id="msg_all_submit" style="display:none">'.
953: &mt('Processing your submission ...').'</div></form>');
1.7 www 954: }
1.94 raeburn 955: unless (($target eq 'tex') || ($target eq 'tex_answer')) {
1.76 albertel 956: $r->print(&Apache::loncommon::end_page({'discussion'
957: => 1,}));
1.40 sakharuk 958: } else {
959: $r->print('\end{document}'.$number_of_columns);
960: }
1.66 albertel 961: &Apache::lonnet::symblist($requrl,%symbhash);
1.69 albertel 962: my ($map,$id,$url)=&Apache::lonnet::decode_symb(&Apache::lonnet::symbread());
963: &Apache::lonnet::symblist($map,'last_known'=>[$url,$id]);
1.3 www 964: # -------------------------------------------------------------------- End page
965: }
1.1 www 966: # ------------------------------------------------------------- End render page
967: } else {
1.67 albertel 968: &Apache::loncommon::content_type($r,'text/html');
1.3 www 969: $r->send_http_header;
1.39 www 970: &Apache::lonsequence::viewmap($r,$requrl);
1.1 www 971: }
972: # ------------------------------------------------------------------ Untie hash
973: unless (untie(%hash)) {
974: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
975: "Could not untie coursemap $fn (browse).</font>");
976: }
977: # -------------------------------------------------------------------- All done
978: return OK;
979: # ----------------------------------------------- Errors, hash could no be tied
980: }
981: }
982: }
1.67 albertel 983: &Apache::loncommon::content_type($r,'text/html');
1.39 www 984: $r->send_http_header;
985: &Apache::lonsequence::viewmap($r,$requrl);
986: return OK;
1.1 www 987: }
988:
1.83 albertel 989: sub get_buttons {
1.122 raeburn 990: my ($hash,$rid,$buttonshide,$hostname) = @_;
1.83 albertel 991:
992: my ($mapid,$resid)=split(/\./,$rid);
993: my $symb=&Apache::lonnet::encode_symb($hash->{'map_id_'.$mapid},
994: $resid,
995: $hash->{'src_'.$rid});
1.136 raeburn 996: my $aname;
997: if (($hash->{'encrypted_'.$rid}) && (!$env{'request.role.adv'})) {
998: $aname = 'LC_'.$rid;
999: } else {
1.138 raeburn 1000: my $shownsymb = $symb;
1001: if ($symb =~ /\#([^\#]+)$/) {
1002: my $escan = &escape('#');
1003: $shownsymb =~ s/#([^\#]+)$/$escan$1/;
1004: }
1005: $aname = &escape($shownsymb);
1.136 raeburn 1006: }
1007: my $metainfo = '<a name="'.$aname.'"></a>';
1.109 raeburn 1008: unless ($env{'request.role.adv'}) {
1.119 raeburn 1009: if ($buttonshide->{$symb} eq 'yes') {
1.136 raeburn 1010: return $metainfo;
1.109 raeburn 1011: }
1012: }
1.131 raeburn 1013: my $crs_sec = $env{'request.course.id'} . (($env{'request.course.sec'} ne '')
1014: ? "/$env{'request.course.sec'}"
1015: : '');
1.136 raeburn 1016: my $esrc=&Apache::lonnet::declutter($hash->{'src_'.$rid});
1.83 albertel 1017: if ($hash->{'encrypted_'.$rid}) {
1018: $esrc=&Apache::lonenc::encrypted($esrc);
1019: }
1020: if ($hash->{'src_'.$rid} !~ m-^/uploaded/-
1.134 raeburn 1021: && $hash->{'src_'.$rid} !~ m{^/ext/}
1.83 albertel 1022: && !$env{'request.enc'}
1023: && ($env{'request.role.adv'}
1024: || !$hash->{'encrypted_'.$rid})) {
1.137 raeburn 1025: $metainfo .= '<a href="'.$hash->{'src_'.$rid}.'.meta'.'" '.
1026: 'target="LONcatInfo">'.
1.100 bisitz 1027: '<img src="/res/adm/pages/catalog.png" class="LC_icon"'.
1028: ' alt="'.&mt('Show Metadata').'"'.
1029: ' title="'.&mt('Show Metadata').'" />'.
1.83 albertel 1030: '</a>';
1031: }
1.99 raeburn 1032: if (($hash->{'src_'.$rid} !~ m{^/uploaded/}) &&
1.134 raeburn 1033: ($hash->{'src_'.$rid} !~ m{^/ext/})) {
1.98 raeburn 1034: $metainfo .= '<a href="/adm/evaluate?postdata='.
1035: &escape($esrc).
1036: '" target="LONcatInfo">'.
1.100 bisitz 1037: '<img src="/res/adm/pages/eval.png" class="LC_icon"'.
1038: ' alt="'.&mt('Provide my evaluation of this resource').'"'.
1039: ' title="'.&mt('Provide my evaluation of this resource').'" />'.
1.98 raeburn 1040: '</a>';
1041: }
1.97 www 1042: if (($hash->{'src_'.$rid}=~/$LONCAPA::assess_re/) &&
1.83 albertel 1043: ($hash->{'src_'.$rid} !~ m-^/uploaded/-)) {
1044:
1.132 raeburn 1045: if ((&Apache::lonnet::allowed('mgr',$crs_sec)) ||
1046: (&Apache::lonnet::allowed('vgr',$crs_sec))) {
1.83 albertel 1047: $metainfo.=
1048: '<a href="/adm/grades?symb='.&escape($symb).
1049: # '&command=submission" target="LONcatInfo">'.
1050: '&command=submission">'.
1.100 bisitz 1051: '<img src="/adm/lonMisc/subm_button.png" class="LC_icon"'.
1052: ' alt="'.&mt('View Submissions for a Student or a Group of Students').'"'.
1053: ' title="'.&mt('View Submissions for a Student or a Group of Students').'" />'.
1.132 raeburn 1054: '</a>';
1055: }
1056: if (&Apache::lonnet::allowed('mgr',$crs_sec)) {
1057: $metainfo.=
1.83 albertel 1058: '<a href="/adm/grades?symb='.&escape($symb).
1059: # '&command=gradingmenu" target="LONcatInfo">'.
1060: '&command=gradingmenu">'.
1.100 bisitz 1061: '<img src="/res/adm/pages/pgrd.png" class="LC_icon"'.
1062: ' alt="'.&mt('Content Grades').'"'.
1063: ' title="'.&mt('Content Grades').'" />'.
1.83 albertel 1064: '</a>';
1065: }
1.132 raeburn 1066: if ((&Apache::lonnet::allowed('opa',$crs_sec)) ||
1067: (&Apache::lonnet::allowed('vpa',$crs_sec))) {
1.83 albertel 1068: $metainfo.=
1069: '<a href="/adm/parmset?symb='.&escape($symb).
1070: # '" target="LONcatInfo">'.
1071: '" >'.
1.100 bisitz 1072: '<img src="/adm/lonMisc/pprm_button.png" class="LC_icon"'.
1073: ' alt="'.&mt('Content Settings').'"'.
1074: ' title="'.&mt('Content Settings').'" />'.
1.83 albertel 1075: '</a>';
1076: }
1077: }
1.125 raeburn 1078: if ($env{'request.course.id'}) {
1.102 raeburn 1079: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
1080: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1081: my $file=&Apache::lonnet::declutter($hash->{'src_'.$rid});
1.125 raeburn 1082: my $editbutton = '';
1083: if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
1084: my ($cfile,$home,$switchserver,$forceedit,$forceview) =
1085: &Apache::lonnet::can_edit_resource($file,$cnum,$cdom,$hash->{'src_'.$rid},$symb);
1086: if ($cfile ne '') {
1087: my $jscall = &Apache::lonhtmlcommon::jump_to_editres($cfile,$home,$switchserver,
1088: $forceedit,1,$symb,undef,
1089: &escape($env{'form.title'}),
1090: $hostname);
1091: if ($jscall) {
1092: $editbutton = 1;
1093: my $icon = 'pcstr.png';
1094: my $label = &mt('Edit');
1095: my $title = &mt('Edit this resource');
1096: my $pic = '<img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/'.$icon).'"'.
1097: ' class="LC_icon" alt="'.$label.'" title="'.$title.'" />';
1098: $metainfo .= ' <a href="javascript:'.$jscall.';">'.$pic.'</a>';
1099: }
1100: }
1101: }
1102: if ((!$editbutton) && ($file=~/$LONCAPA::assess_re/)) {
1103: my $url = &Apache::lonnet::clutter($file);
1104: my $viewsrcbutton;
1105: if ((&Apache::lonnet::allowed('cre','/')) &&
1106: (&Apache::lonnet::metadata($url,'sourceavail') eq 'open')) {
1107: $viewsrcbutton = 1;
1.131 raeburn 1108: } elsif (&Apache::lonnet::allowed('vxc',$crs_sec)) {
1.125 raeburn 1109: if ($url =~ m{^\Q/res/$cdom/\E($LONCAPA::match_username)/}) {
1110: my $auname = $1;
1111: if (($env{'request.course.adhocsrcaccess'} ne '') &&
1112: (grep(/^\Q$auname\E$/,split(/,/,$env{'request.course.adhocsrcaccess'})))) {
1113: $viewsrcbutton = 1;
1.130 raeburn 1114: } elsif ((&Apache::lonnet::metadata($url,'sourceavail') eq 'open') &&
1.131 raeburn 1115: (&Apache::lonnet::allowed('bre',$crs_sec))) {
1.130 raeburn 1116: $viewsrcbutton = 1;
1.125 raeburn 1117: }
1118: }
1119: }
1120: if ($viewsrcbutton) {
1.102 raeburn 1121: my $icon = 'pcstr.png';
1.125 raeburn 1122: my $label = &mt('View Source');
1123: my $title = &mt('View source code');
1124: my $jsrid = $rid;
1125: $jsrid =~ s/\./_/g;
1126: my $showurl = &escape(&Apache::lonenc::check_encrypt($url));
1.102 raeburn 1127: my $pic = '<img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/'.$icon).'"'.
1128: ' class="LC_icon" alt="'.$label.'" title="'.$title.'" />';
1.125 raeburn 1129: $metainfo .= ' <a href="javascript:open_source_'.$jsrid.'();">'.$pic.'</a>'."\n".
1130: '<script type="text/javascript">'."\n".
1131: "function open_source_$jsrid() {\n".
1132: " sourcewin=window.open('/adm/source?inhibitmenu=yes&viewonly=1&filename=$showurl','LONsource',".
1133: "'height=500,width=600,resizable=yes,location=no,menubar=no,toolbar=no,scrollbars=yes');\n".
1134: "}\n".
1135: "</script>\n";
1.102 raeburn 1136: }
1137: }
1138: }
1.83 albertel 1139: return $metainfo;
1140: }
1141:
1.111 raeburn 1142: sub add_countdown_timer {
1.114 raeburn 1143: my ($currdisp,$donebuttontime,$donebuttonextras) = @_;
1.112 raeburn 1144: my ($collapse,$expand,$alttxt,$title,$donebutton);
1.111 raeburn 1145: if ($currdisp eq 'inline') {
1146: $collapse = '► ';
1147: } else {
1148: $expand = '◄ ';
1149: }
1.112 raeburn 1150: if ($donebuttontime) {
1.114 raeburn 1151: my ($type,$proctor,$donebuttontext);
1152: if (ref($donebuttonextras) eq 'HASH') {
1153: $proctor = $donebuttonextras->{'proctor'};
1154: $donebuttontext = $donebuttonextras->{'text'};
1155: $type = $donebuttonextras->{'type'};
1156: } else {
1157: $donebuttontext = &mt('Done');
1.116 raeburn 1158: $type = 'map';
1.114 raeburn 1159: }
1160: $donebutton =
1161: &Apache::lonmenu::done_button_js($type,'','',$proctor,$donebuttontext);
1.112 raeburn 1162: }
1.111 raeburn 1163: unless ($env{'environment.icons'} eq 'iconsonly') {
1164: $alttxt = &mt('Timer');
1165: $title = $alttxt.' ';
1166: }
1167: my $desc = &mt('Countdown to due date/time');
1168: my $output = <<END;
1.112 raeburn 1169: $donebutton
1.111 raeburn 1170: <a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
1171: <span id="ddcountcollapse" class="LC_menubuttons_inline_text">
1172: $collapse
1173: </span></a>
1174: <span id="duedatecountdown" class="LC_menubuttons_inline_text" style="display: $currdisp;"></span>
1175: <a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
1176: <span id="ddcountexpand" class="LC_menubuttons_inline_text" >$expand</span>
1177: <img src="/res/adm/pages/timer.png" title="$desc" class="LC_icon" alt="$alttxt" /><span class="LC_menubuttons_inline_text">$title</span></a>
1178: END
1179: &Apache::lonhtmlcommon::add_breadcrumb_tool('tools',$output);
1180: return;
1181: }
1182:
1.135 raeburn 1183: sub create_extlink {
1184: my ($url,$anchor,$title,$linktext) = @_;
1185: my $shownlink;
1186: unless ($title eq '') {
1187: $shownlink = '<span style="font-weight:bold;">'.$title.'</span><br />';
1188: }
1189: my $dest = &HTML::Entities::encode($url.$anchor,'&<>"');
1190: $shownlink .= '<a href="'.$dest.'">'.$linktext.'</a>';
1191: return $shownlink;
1192: }
1.111 raeburn 1193:
1.1 www 1194: 1;
1195: __END__
1196:
1197:
1.89 jms 1198: =head1 NAME
1199:
1200: Apache::lonpage - Page Handler
1201:
1202: =head1 SYNOPSIS
1203:
1204: Invoked by /etc/httpd/conf/srm.conf:
1205:
1206: <LocationMatch "^/res/.*\.page$>
1207: SetHandler perl-script
1208: PerlHandler Apache::lonpage
1209: </LocationMatch>
1210:
1211: =head1 INTRODUCTION
1212:
1213: This module renders a .page resource.
1214:
1215: This is part of the LearningOnline Network with CAPA project
1216: described at http://www.lon-capa.org.
1217:
1218: =head1 HANDLER SUBROUTINE
1219:
1220: This routine is called by Apache and mod_perl.
1221:
1222: =over 4
1223:
1224: =item *
1225:
1226: set document type for header only
1227:
1228: =item *
1229:
1230: tie db file
1231:
1232: =item *
1233:
1234: render page
1235:
1236: =item *
1237:
1238: add to symb list
1239:
1240: =item *
1241:
1242: page parms
1243:
1244: =item *
1245:
1246: Get SSI output, post parameters
1.1 www 1247:
1.89 jms 1248: =item *
1249:
1250: SSI cell rendering
1251:
1252: =item *
1253:
1254: Deal with Applet codebases
1255:
1256: =item *
1257:
1258: Build page
1259:
1260: =item *
1261:
1262: send headers
1263:
1264: =item *
1265:
1266: start body
1267:
1268: =item *
1269:
1270: start form
1271:
1272: =item *
1273:
1274: start table
1275:
1276: =item *
1277:
1278: submit element, etc, render page, untie hash
1279:
1280: =back
1281:
1282: =head1 OTHER SUBROUTINES
1283:
1284: =over 4
1285:
1286: =item *
1287:
1288: euclid() : Euclid's method for determining the greatest common denominator.
1289:
1290: =item *
1291:
1292: tracetable() : Build page table.
1293:
1294: =back
1295:
1296: =cut
1.1 www 1297:
1298:
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