1: # The LearningOnline Network
2: # Syllabus
3: #
4: # $Id: lonsyllabus.pm,v 1.130 2013/08/27 03:00:38 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: package Apache::lonsyllabus;
30:
31: use strict;
32: use Apache::lontemplate;
33: use Apache::Constants qw(:common);
34: use Apache::loncommon;
35: use Apache::lonnet;
36: use Apache::lontexconvert;
37: use Apache::lonfeedback;
38: use Apache::lonannounce;
39: use Apache::lonlocal;
40: use Apache::lonhtmlcommon;
41: use Apache::lonspeller();
42: use HTML::Entities();
43:
44: sub handler {
45: my $r = shift;
46: &Apache::loncommon::content_type($r,'text/html');
47: $r->send_http_header;
48: return OK if $r->header_only;
49:
50: my $target=$env{'form.grade_target'};
51: # --------------------------------------------------- Get course info from URL
52: my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
53: # ------------------------------------------------------------ Get query string
54: &Apache::loncommon::get_unprocessed_cgi
55: ($ENV{'QUERY_STRING'},['register','forceedit','todocs',
56: 'folderpath','title']);
57: # ----------------------------------------------------- Is this even a course?
58: my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom);
59: if ($homeserver eq 'no_host') {
60: &Apache::loncommon::content_type($r,'text/html');
61: $r->send_http_header;
62: &Apache::loncommon::simple_error_page($r,'No syllabus available',
63: 'No syllabus available');
64: return OK;
65: } elsif (!&Apache::lonnet::is_course($cdom,$cnum)) {
66: &Apache::loncommon::content_type($r,'text/html');
67: $r->send_http_header;
68: &Apache::loncommon::simple_error_page($r,'No syllabus available',
69: 'The course/community for which the syllabus was requested does not exist.');
70: return OK;
71: }
72: # ------------------------------------- There is such a course, get environment
73: my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
74: my $crstype = &Apache::loncommon::course_type();
75:
76: # --------------------------------------------------------------- Force Student
77: my ($forceedit,$forcestudent);
78: if ($env{'form.forceedit'}) { $forceedit=1; }
79: if (!$forceedit) {
80: $forcestudent=1;
81: }
82:
83: # --------------------------------------------------------------- Check Privileges
84: my $allowed = 0;
85: if ($env{'user.environment'}) {
86: # does this user have privileges to post, etc?
87: if ($env{'request.course.id'}
88: && $cdom eq $env{'course.'.$env{'request.course.id'}.'.domain'}
89: && $cnum eq $env{'course.'.$env{'request.course.id'}.'.num'}) {
90: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
91: if ($forcestudent or $target eq 'tex') { $allowed=0; }
92: }
93: }
94:
95: # -------------------------------------------------- Let's see who handles this
96: my $external=$courseenv{'externalsyllabus'};
97: my $uploaded=$courseenv{'uploadedsyllabus'};
98: my $minimal=$courseenv{'minimalsyllabus'};
99:
100: if (($minimal =~/\w/) || ($uploaded =~/\w/)) {
101: my $item;
102: if ($minimal =~/\w/) {
103: if ($external =~ m{\Q$minimal\E$}) {
104: undef($external);
105: }
106: $item = $minimal;
107: } elsif ($uploaded =~/\w/) {
108: if ($external =~ m{\Q$uploaded\E$}) {
109: undef($external);
110: }
111: $item = $uploaded;
112: }
113: unless ($allowed && $forceedit) {
114: my $file=&Apache::lonnet::filelocation("",$item);
115: if ($file =~ /\.(tex|x?html?)$/) {
116: my $filetype = $1;
117: my $filecontents=&Apache::lonnet::getfile($file);
118: if ($filecontents eq -1) {
119: $r->print(&mt('Syllabus file unavailable'));
120: } elsif ($filetype eq 'tex') {
121: if ($target eq 'tex') {
122: $r->print($filecontents);
123: } else {
124: my $result = &Apache::lontexconvert::converted(\$filecontents,
125: $env{'form.texengine'});
126: my %args;
127: &get_breadcrumbs($cdom,$cnum,$crstype,\%args);
128: $r->print(&Apache::loncommon::start_page("Syllabus",undef,\%args).
129: $result.
130: &Apache::loncommon::end_page());
131: }
132: } else {
133: my %mystyle;
134: unless ($target eq 'tex') {
135: $target = 'web';
136: }
137: &Apache::structuretags::reset_problem_globals();
138: my $oldfile = $env{'request.filename'};
139: $env{'request.filename'} = $item;
140: my $result = &Apache::lonxml::xmlparse($r,$target,$filecontents,
141: '',%mystyle);
142: &Apache::structuretags::reset_problem_globals();
143: &Apache::lonhomework::finished_parsing();
144: $env{'request.filename'} = $oldfile;
145: &Apache::lonxml::add_messages(\$result);
146: $r->print($result);
147: }
148: } else {
149: if ($target eq 'tex') {
150: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}).
151: ' \strut \\\\ \textbf{'.&mt('Syllabus').'} \strut \\\\ '.
152: &mt('Unsupported file type.').' \strut \\\\ '.
153: &mt('Print the syllabus directly from your web browser').
154: '\end{document}');
155: } else {
156: $r->print(&Apache::lonwrapper::wrapper($item));
157: }
158: }
159: return OK;
160: }
161: } elsif ($external=~/\w/) {
162: unless ($allowed && $forceedit) {
163: if ($target eq 'tex') {
164: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}).
165: ' \strut \\\\ \textbf{'.&mt('Syllabus').'} \strut \\\\ '.$external.' '.
166: ' \strut \\\\ '.&mt('Print the syllabus directly from your web browser').
167: '\end{document}');
168: } else {
169: $r->print(&Apache::lonwrapper::wrapper($external));
170: }
171: return OK;
172: }
173: }
174:
175: # ------------------------------------------------------------ Print the screen
176:
177: if ($target eq 'tex') {
178: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
179: }
180:
181: # ------------------------------ The buck stops here: internal syllabus display
182: # --------------------------------------------------------- The syllabus fields
183: my %syllabusfields=&Apache::lonlocal::texthash(
184: 'aaa_instructorinfo' => 'Instructor Information',
185: 'bbb_description' => 'Course Description',
186: 'ccc_prereq' => 'Prerequisites',
187: 'cdc_classhours' => 'Class Hours',
188: 'ddd_officehours' => 'Office Hours',
189: 'eee_helproom' => 'Helproom Hours',
190: 'efe_projectinfo' => 'Project Information',
191: 'fff_examinfo' => 'Exam Information',
192: 'fgf_deadlines' => 'Deadlines',
193: 'ggg_grading' => 'Grading Information',
194: 'hhh_readings' => 'Readings',
195: 'iii_coursepack' => 'Coursepack',
196: 'jjj_weblinks' => 'Web Links',
197: 'kkk_textbook' => 'Textbook',
198: 'lll_includeurl' => 'URLs To Include in Syllabus');
199: # ---------------------------------------------------------- Load syllabus info
200: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
201: my ($output,%displayfields,%noshow);
202:
203: # This handler might be called anonymously ...
204: # ----------------------------------------------------- Only if not public call
205: if ($allowed) {
206: if (($env{'form.choice'} =~ /^(template|minimal|url|file)$/) ||
207: ($env{'form.phase'} =~ /^(upload|check)_embedded$/)) {
208: my $earlyout;
209: ($earlyout,$uploaded,$external,$minimal,$output) =
210: &save_changes($cnum,$cdom,$uploaded,$external,$minimal,
211: \%syllabus,\%syllabusfields,\%courseenv);
212: if (($env{'form.choice'} eq 'minimal') &&
213: ($minimal eq "/uploaded/$cdom/$cnum/portfolio/syllabus/loncapa.html")) {
214: delete($env{'form.symb'});
215: delete($env{'request.symb'});
216: $r->internal_redirect("$minimal?editmode=1&forceedit=1");
217: return OK;
218: }
219: if ($earlyout) {
220: if ($target ne 'tex') {
221: &print_header($r,$cnum,$cdom,$crstype,$allowed,$forceedit,
222: \%syllabus,\%syllabusfields);
223: $r->print($output.
224: &Apache::loncommon::end_page());
225: }
226: return OK;
227: }
228: }
229: }
230: if ($target ne 'tex') {
231: &print_header($r,$cnum,$cdom,$crstype,$allowed,$forceedit,\%syllabus,
232: \%syllabusfields);
233: $r->print($output);
234: }
235:
236: # -------------------------------------------- Determine which fields are shown
237:
238: if ($syllabus{'uploaded.fields'}) {
239: if ($syllabus{'uploaded.fields'} eq 'none') {
240: foreach my $field (keys(%syllabusfields)) {
241: $displayfields{$field} = ' style="display:none;"';
242: $noshow{$field} = 1;
243: }
244: } else {
245: my %included;
246: map { $included{$_} = 1; } split(/,/,$syllabus{'uploaded.fields'});
247: foreach my $field (keys(%syllabusfields)) {
248: my ($prefix) = split(/_/,$field);
249: if ($included{$prefix}) {
250: $displayfields{$field} = ' style="display:block;"';
251: } else {
252: $displayfields{$field} = ' style="display:none;"';
253: $noshow{$field} = 1;
254: }
255: }
256: }
257: } else {
258: foreach my $field (keys(%syllabusfields)) {
259: if ($syllabus{$field} ne '') {
260: $displayfields{$field} = ' style="display:block;"';
261: } else {
262: $displayfields{$field} = ' style="display:none;"';
263: }
264: }
265: }
266:
267: if ($allowed) {
268: #---------------------------------- Print External URL Syllabus Info if editing
269: if ($target ne 'tex') {
270: my $protocol = $Apache::lonnet::protocol{$homeserver};
271: $protocol = 'http' if ($protocol ne 'https');
272: my $link = $protocol.'://'.&Apache::lonnet::hostname($homeserver).$r->uri;
273: $r->print('<div class="LC_left_float">'
274: .'<span class="LC_help_open_topic LC_info">'
275: .'<span class="LC_info">'
276: .&mt('Public link (no log-in): [_1]','<tt>'.$link.'</tt>')
277: .' </span>'.&Apache::loncommon::help_open_topic('Syllabus_ExtLink')
278: .'</span>'
279: .'</div><div style="padding:0;clear:both;margin:0;border:0"></div>'."\n");
280: my $lonhost = $r->dir_config('lonHostID');
281: $r->print(&chooser($external,$uploaded,$minimal,$cdom,$cnum,$lonhost,
282: \%syllabusfields,\%syllabus));
283: }
284: } else {
285: #--------------------------------------------- Print last update unless editing
286: my $lastmod=$syllabus{'uploaded.lastmodified'};
287: $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
288: my $who;
289: if ($syllabus{'uploaded.lastmodified'}) {
290: if (($env{'user.name'} ne 'public') && ($env{'user.domain'} ne 'public')) {
291: $who = &Apache::loncommon::aboutmewrapper(
292: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
293: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
294: $syllabus{'uploaded.domain'});
295: } else {
296: # Public user?
297: # Only display name of user, but no link to personal information page
298: $who = &Apache::loncommon::plainname(
299: $syllabus{'uploaded.name'},
300: $syllabus{'uploaded.domain'});
301: }
302: }
303: if ($target ne 'tex') {
304: $r->print('<div class="LC_info">'.&mt('Last updated').': '.
305: $lastmod . ' '.
306: ($who ? &mt('by').' '.$who
307: : '' ) .
308: '</div>' );
309: } else {
310: $r->print('\\\\ '.&mt('Last updated').': '.$lastmod.' '.
311: ($who? &mt('by').'\\\\ '.
312: &Apache::loncommon::plainname($syllabus{'uploaded.name'},$syllabus{'uploaded.domain'})
313: :'')
314: .'\\\\');
315: }
316: }
317:
318: #-------------------------------------------------------------- Print Headtitle
319: if ($target ne 'tex') {
320: my $display = 'block';
321: if ($external || $uploaded || $minimal) {
322: $display = 'none';
323: }
324: $r->print('<div class="LC_Box" id="template" style="display: '.$display.'">'.
325: '<h2 class="LC_hcell">'.$courseenv{'description'}.'</h2>');
326: if ($allowed) {
327: $r->print('<div style="margin: 0; float:left;">'.
328: '<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>'.
329: '</div>');
330: # Print Help Text if editing at right side of screen
331: $r->print('<div style="margin: 0; float:right;">'.
332: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')).
333: '</div><br clear="all" />');
334: } else {
335: $r->print('<h3>'.&Apache::lonnet::domain($cdom,'description').'</h3>');
336: }
337: } else {
338: $r->print('\noindent{\large\textbf{'.$courseenv{'description'}.'}}\\\\\\\\\textbf{'.
339: &Apache::lonnet::domain($cdom,'description').'}\\\\');
340: }
341: # -------------------------------------------------------- Get course personnel
342: my $hidepersonnel;
343: if (($syllabus{'uploaded.fields'}) &&
344: (($syllabus{'uploaded.fields'} eq 'none') ||
345: ($syllabus{'uploaded.fields'} !~ /000/))) {
346: $hidepersonnel = 1;
347: }
348: if ($target ne 'tex') {
349: if ($allowed) {
350: my $display = ' style="display:block;"';
351: if ($hidepersonnel) {
352: $display = ' style="display:none;"';
353: }
354: &Apache::lontemplate::print_start_template($r,&mt('Personnel'),'LC_Box',
355: 'box_000_showpeople',$display);
356: $r->print(&get_personnel($r,$target,$cdom,$cnum,$allowed,$crstype,\%syllabus));
357: &Apache::lontemplate::print_end_template($r);
358: } else {
359: unless ($hidepersonnel) {
360: &Apache::lontemplate::print_start_template($r,&mt('Personnel'),'LC_Box');
361: $r->print(&get_personnel($r,$target,$cdom,$cnum,$allowed,$crstype,\%syllabus));
362: &Apache::lontemplate::print_end_template($r);
363: }
364: }
365: } else {
366: unless ($hidepersonnel) {
367: $r->print(&get_personnel($r,$target,$cdom,$cnum,$allowed,$crstype,%syllabus));
368: }
369: }
370: # -------------------------------------------------------------- Announcements?
371: my $day = &Apache::lonannounce::showday(time,2,
372: &Apache::lonannounce::readcalendar($cdom.'_'.$cnum));
373: my $hidefeeds;
374: if (($syllabus{'uploaded.fields'}) &&
375: (($syllabus{'uploaded.fields'} eq 'none') ||
376: ($syllabus{'uploaded.fields'} !~ /111/))) {
377: $hidefeeds = 1;
378: }
379: if ($target ne 'tex') {
380: if ($allowed) {
381: my $display = ' style="display:block;"';
382: if ($hidefeeds) {
383: $display = ' style="display:none;"';
384: }
385: &Apache::lontemplate::print_start_template($r,&mt('RSS Feeds and Blogs'),'LC_Box',
386: 'box_111_showrssfeeds',$display);
387: my ($numfeeds,$hiddenfeeds,$rsslinktext);
388: my $feeds=&Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit,\$numfeeds,
389: \$hiddenfeeds);
390: if ($numfeeds) {
391: $r->print($feeds);
392: $rsslinktext = &mt('New RSS Feed or Blog');
393: } else {
394: my $msg = '<br />'.
395: &mt("RSS Feeds and Blogs item is not included in a student's view of the syllabus.");
396: if ($hiddenfeeds) {
397: $r->print('<p class="LC_info">'.
398: &mt('All feeds currently hidden').
399: $msg.
400: '</p>');
401: } else {
402: $r->print('<p class="LC_info">'.
403: &mt('No current feeds').
404: $msg.
405: '</p>');
406: }
407: $rsslinktext = &mt('Manage Course RSS Feeds/Blogs');
408: if ($crstype eq 'Community') {
409: $rsslinktext = &mt('Manage Communiity RSS Feeds/Blogs');
410: }
411: }
412: my $editurl= &Apache::lonnet::absolute_url().'/adm/'.$cdom.'/'.$cnum.'/_rss.html';
413: $r->print( '<a href="'.$editurl.'">'.$rsslinktext.'</a>');
414: &Apache::lontemplate::print_end_template($r);
415: } else {
416: unless ($hidefeeds) {
417: my $feeds = &Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit);
418: if ($feeds ne '') {
419: &Apache::lontemplate::print_start_template($r,&mt('RSS Feeds and Blogs'),'LC_Box');
420: $r->print($feeds);
421: &Apache::lontemplate::print_end_template($r);
422: }
423: }
424: }
425: } else {
426: $r->print(&Apache::lonxml::xmlparse($r,'tex',$day));
427: }
428: # ---------------------------------------------------------------- Get syllabus
429: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
430: my $url_include_handler = sub {
431: my ($r, $field, $message, $group, $data_ref, $fields_ref, $target, $allowed, $display) = @_;
432: my %data = %{$data_ref};
433: my %fields = %{$fields_ref};
434: my $urls=$message;
435: $message='';
436: foreach my $filelink (split(/\n/,$urls)) {
437: my $output='';
438: # embed style?
439: my ($curfext)=($filelink=~/\.([^\.]+)$/);
440: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
441: if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {# make ssi call and remove everything but the body contents
442: $output=&Apache::lonnet::ssi_body($filelink);
443: } elsif ($embstyle eq 'img') {# embed as an image
444: $output='<img src="'.$filelink.'" />';
445: }
446: if ($output ne '') {
447: if ($target ne 'tex') {
448: $message.='<p>'.$output.'</p>';
449: } else {
450: $message.=' '.&Apache::lonxml::xmlparse($r,'tex','<p>'.$output.'</p>').' ';
451: }
452: }
453: }
454: if ($allowed) {
455: &Apache::lonfeedback::newline_to_br(\$urls);
456: &Apache::lontemplate::print_start_template($r,$fields{$field}.
457: &Apache::loncommon::help_open_topic('Syllabus_URLs'),'LC_Box',
458: 'box_'.$field,$display);
459: $r->print($urls);
460: $r->print("<br /><div>");
461: &Apache::lontemplate::print_textarea_template($r, $data{$field},
462: $field, Apache::lontemplate->RICH_TEXT_ALWAYS_OFF);
463: &Apache::lontemplate::print_saveall_template($r);
464: $r->print("</div>");
465: &Apache::lontemplate::print_end_template($r);
466:
467: } else {
468: $r->print($message);
469: }
470: };
471: my %custom_hash = ( 'lll_includeurl' => $url_include_handler );
472: &Apache::lontemplate::print_template_fields($r, \%syllabus, \%syllabusfields,
473: $target, $allowed, Apache::lontemplate->RICH_TEXT_DETECT_HTML, \%custom_hash,
474: undef,\%displayfields,\%noshow);
475: if ($allowed) {
476: $r->print('</div></form>'.
477: &Apache::lonhtmlcommon::htmlareaselectactive());
478: }
479: } else {
480: if ($target ne 'tex') {$r->print('<p class="LC_info">');} else {$r->print('\par ');}
481: $r->print(&mt('No syllabus information provided.'));
482: if ($target ne 'tex') {$r->print('</p>');}
483: }
484: if ($target ne 'tex') {
485: if ($env{'form.backto'} eq 'coursecatalog') {
486: $r->print('<form name="backtocat" method="post" action="/adm/coursecatalog">'.
487: &Apache::lonhtmlcommon::echo_form_input(['backto','courseid']).
488: '</form>');
489: }
490: $r->print(&Apache::loncommon::end_page());
491: } else {
492: $r->print('\end{document}');
493: }
494: return OK;
495: }
496:
497: sub print_header {
498: my ($r,$cnum,$cdom,$crstype,$allowed,$forceedit,$syllabus,$syllabusfields) = @_;
499: return unless ((ref($syllabus) eq 'HASH') || (ref($syllabusfields) eq 'HASH'));
500: # ----------------------------------------------------------------- Make header
501: my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
502: my $js;
503: if ($env{'form.backto'} eq 'coursecatalog') {
504: $js .= <<"ENDSCRIPT";
505:
506: <script type="text/javascript">
507: // <![CDATA[
508:
509: function ToCatalog(caller) {
510: numidx = getIndexByName('coursenum');
511: if (numidx > -1) {
512: if (caller != 'details') {
513: document.backtocat.elements[numidx].value = '';
514: }
515: }
516: document.backtocat.submit();
517: }
518:
519: function getIndexByName(item) {
520: for (var i=0;i<document.backtocat.elements.length;i++) {
521: if (document.backtocat.elements[i].name == item) {
522: return i;
523: }
524: }
525: return -1;
526: }
527:
528: // ]]>
529: </script>
530:
531: ENDSCRIPT
532: }
533: if ($allowed && $forceedit) {
534: my $check_uncheck = &Apache::loncommon::check_uncheck_jscript();
535: my @fieldnames = sort(keys(%{$syllabusfields}));
536: unshift(@fieldnames,'000_showpeople','111_showrssfeeds');
537: my (@checked,@unchecked);
538: if ($syllabus->{'uploaded.fields'} eq 'none') {
539: my $lastidx = scalar(@fieldnames)-1;
540: @unchecked = (0..$lastidx);
541: } elsif ($syllabus->{'uploaded.fields'}) {
542: my %included;
543: map { $included{$_} = 1; } split(/,/,$syllabus->{'uploaded.fields'});
544: for (my $i=0; $i<@fieldnames; $i++) {
545: my ($prefix) = split(/_/,$fieldnames[$i]);
546: if ($included{$prefix}) {
547: push(@checked,$i);
548: } else {
549: push(@unchecked,$i);
550: }
551: }
552: } else {
553: @checked = (0,1);
554: for (my $i=2; $i<@fieldnames; $i++) {
555: if ($syllabus->{$fieldnames[$i]}) {
556: push(@checked,$i);
557: } else {
558: push(@unchecked,$i);
559: }
560: }
561: }
562: my $fieldstr = "var fields = new Array('".join("','",@fieldnames)."');";
563: my $checkedstr = "var include = new Array('".join("','",@checked)."');";
564: my $uncheckedstr = "var exclude = new Array('".join("','",@unchecked)."');";
565: my $invurl = &mt('Invalid URL');
566: my $urlregexp = <<'ENDREGEXP';
567: /^([a-z]([a-z]|\d|\+|-|\.)*):(\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?((\[(|(v[\da-f]{1,}\.(([a-z]|\d|-|\.|_|~)|[!\$&'\(\)\*\+,;=]|:)+))\])|((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=])*)(:\d*)?)(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*|(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)|((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)|((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)){0})(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i
568: ENDREGEXP
569:
570: $js .= <<"ENDSCRIPT";
571:
572: <script type="text/javascript">
573: // <![CDATA[
574:
575: function toggleEditor(pick) {
576: var choices = new Array('template','minimal','url','file','templatebox');
577: for (var i=0; i<choices.length; i++) {
578: if (((choices[i] == 'templatebox') && (pick == 'template')) ||
579: (choices[i] == pick)) {
580: document.getElementById(choices[i]).style.display='block';
581: } else {
582: document.getElementById(choices[i]).style.display='none';
583: }
584: }
585: return;
586: }
587:
588: var regexp = $urlregexp;
589:
590: function extUrlPreview(caller) {
591: if (document.getElementById(caller)) {
592: var url = document.getElementById(caller).value;
593: if (regexp.test(url)) {
594: openMyModal(url,500,400,'yes');
595: } else {
596: alert("$invurl");
597: }
598: }
599: }
600:
601: function toggleBox(name,caller) {
602: if (name == 'all') {
603: if (document.syllabus.showfield.length > 0) {
604: for (var i=0; i<document.syllabus.showfield.length; i++) {
605: if (document.syllabus.showfield[i].checked) {
606: if (document.getElementById('box_'+document.syllabus.showfield[i].value)) {
607: document.getElementById('box_'+document.syllabus.showfield[i].value).style.display='block';
608: }
609: } else {
610: if (document.getElementById('box_'+document.syllabus.showfield[i].value)) {
611: document.getElementById('box_'+document.syllabus.showfield[i].value).style.display='none';
612: }
613: }
614: }
615: }
616: } else {
617: if (caller.checked) {
618: if (document.getElementById('box_'+caller.value)) {
619: document.getElementById('box_'+caller.value).style.display='block';
620: }
621: } else {
622: if (document.getElementById('box_'+caller.value)) {
623: document.getElementById('box_'+caller.value).style.display='none';
624: }
625: }
626: }
627: return;
628: }
629:
630: function setTemplateBoxes() {
631: $fieldstr
632: $checkedstr
633: $uncheckedstr
634: if (include.length > 0) {
635: for (var i=0; i<include.length; i++) {
636: if (document.getElementById('showfield_'+include[i])) {
637: document.getElementById('showfield_'+include[i]).checked = true;
638: if (document.getElementById('box_'+fields[include[i]])) {
639: document.getElementById('box_'+fields[include[i]]).style.display='block';
640: }
641: }
642: }
643: }
644: if (exclude.length > 0) {
645: for (var i=0; i<exclude.length; i++) {
646: if (document.getElementById('showfield_'+exclude[i])) {
647: document.getElementById('showfield_'+exclude[i]).checked = false;
648: if (document.getElementById('box_'+fields[exclude[i]])) {
649: document.getElementById('box_'+fields[exclude[i]]).style.display='none';
650: }
651: }
652: }
653: }
654: return;
655: }
656:
657: $check_uncheck
658:
659: // ]]>
660: </script>
661:
662: ENDSCRIPT
663: }
664: my $args = {'function' => undef,
665: 'domain' => $cdom};
666: my $forcereg;
667: if ($env{'form.register'}) {
668: $forcereg = 1;
669: $args->{'force_register'} = $forcereg;
670: }
671: if ($env{'form.backto'} eq 'coursecatalog') {
672: &Apache::lonhtmlcommon::clear_breadcrumbs();
673: my $brcrum = [{href=>"javascript:ToCatalog();",
674: text=>&mt('Course/Community Catalog'),
675: no_mt=>1}
676: ];
677: if ($env{'form.coursenum'} ne '') {
678: push(@{$brcrum},
679: {href=>"javascript:ToCatalog('details')",
680: text=>"Course details"});
681: }
682: push(@{$brcrum},
683: {href=>$r->uri,
684: text=>"Course syllabus"});
685: $args->{'bread_crumbs'} = $brcrum;
686: } else {
687: &get_breadcrumbs($cdom,$cnum,$crstype,$args);
688: }
689: if ($allowed) {
690: my %loaditem = (
691: onload => 'setTemplateBoxes();',
692: );
693: $args->{'add_entries'} = \%loaditem;
694: }
695: my $start_page =
696: &Apache::loncommon::start_page("Syllabus", $rss_link.$js,$args);
697: if ($start_page) {
698: $r->print($start_page);
699: }
700: }
701:
702: sub get_breadcrumbs{
703: my ($cdom,$cnum,$crstype,$args) = @_;
704: return unless (ref($args) eq 'HASH');
705: if ($env{'form.folderpath'} =~ /^supplemental/) {
706: my $title = $env{'form.title'};
707: if ($title eq '') {
708: $title = &mt('Syllabus');
709: }
710: my $brcrum =
711: &Apache::lonhtmlcommon::docs_breadcrumbs(undef,$crstype,undef,$title,1);
712: if (ref($brcrum) eq 'ARRAY') {
713: $args->{'bread_crumbs'} = $brcrum;
714: }
715: } else {
716: if ((&Apache::lonnet::is_on_map("public/$cdom/$cnum/syllabus"))
717: && (($env{'form.symb'}) || ($env{'form.register'}))) {
718: &Apache::lonhtmlcommon::clear_breadcrumbs();
719: } else {
720: $args->{'bread_crumbs'} = [
721: {'href' => "/public/$cdom/$cnum/syllabus",
722: 'text' => 'Syllabus'},
723: ];
724: }
725: }
726: return;
727: }
728:
729: sub chooser {
730: my ($external,$uploaded,$minimal,$cdom,$cnum,$lonhost,$fields,$values) = @_;
731: my %lt = &Apache::lonlocal::texthash(
732: 'type' => 'Syllabus Type',
733: 'url' => 'External URL',
734: 'file' => 'Uploaded file',
735: 'minimal' => 'Minimal template',
736: 'template' => 'Standard template',
737: 'templateboxes' => 'Choose template items ... ',
738: 'curr' => 'Current:',
739: 'rep' => 'Replace:',
740: 'upl' => 'Upload:',
741: 'pr' => 'Preview',
742: 'save' => 'Save',
743: 'sved' => 'Save and Edit',
744: 'chourl' => 'External URL',
745: 'chofile' => 'Uploaded syllabus file',
746: 'parse' => 'Upload embedded images/multimedia files if HTML file',
747: );
748: my %checked = (
749: file => '',
750: minimal => '',
751: url => '',
752: template => '',
753: );
754: my %display = (
755: file => 'none',
756: minimal => 'none',
757: url => 'none',
758: templatebox => 'none',
759: );
760: my $check = ' checked="checked" ';
761: if ($uploaded) {
762: $checked{'file'} = $check;
763: $display{'file'} = 'block';
764: } elsif ($external) {
765: $checked{'url'} = $check;
766: $display{'url'} = 'block';
767: } elsif ($minimal) {
768: $checked{'minimal'} = $check;
769: $display{'minimal'} = 'block';
770: } else {
771: $checked{'template'} = $check;
772: $checked{'templatebox'} = $check;
773: $display{'templatebox'} = 'block';
774: }
775:
776: my $output =
777: '<form name="syllabus" method="post" enctype="multipart/form-data" action="">'."\n".
778: '<input type="hidden" name="forceedit" value="1" />'."\n".
779: '<div class="LC_left_float"><fieldset><legend>'.$lt{'type'}.'</legend>';
780: foreach my $item ('minimal','template','url','file') {
781: $output .= '<label><input type="radio" name="choice" value="'.$item.'" '.$checked{$item}.' onclick="toggleEditor('."'$item'".')" />'.
782: $lt{$item}.'</label><br />';
783: }
784: $output .= '</fieldset></div>'."\n".
785: '<div id="url" class="LC_left_float" style="display: '.$display{'url'}.'">'."\n".
786: '<fieldset><legend>'.$lt{'chourl'}.'</legend><span class="LC_nobreak">'."\n".
787: '<a href="javascript:extUrlPreview('."'syllabusurl'".');">'.$lt{'pr'}.'</a></span> '."\n".
788: '<input type="text" id="syllabusurl" name="externalsyllabus" value="'.$external.'" size="55" />'."\n".
789: ' <input type="submit" name="storeurl" value="'.$lt{'save'}.'" />'."\n".
790: '</fieldset></div>'."\n".
791: '<div id="minimal" class="LC_left_float" style="display: '.$display{'minimal'}.'">'."\n".
792: '<fieldset><legend>'.$lt{'minimal'}.'</legend>';
793: if ($minimal) {
794: my ($absurl,$filename,$depbutton) = &syllabus_file_info($minimal,$cnum,$cdom,$lonhost,'minimal');
795: $output .= '<a href="javascript:extUrlPreview('."'currminimal'".');">'.$lt{'pr'}.'</a>'.
796: '<input type="hidden" name="minimalfile" value="'.&HTML::Entities::encode($absurl).'?inhibitmenu=yes" id="currminimal" />'.
797: $depbutton;
798: } else {
799: $output .= &mt('Title of Syllabus Page:').' '.
800: '<input type="text" id="minimaltitle" name="syllabustitle" value="'.&mt('Syllabus').'" size="30" />'."\n".
801: ' <input type="submit" name="storeminimal" value="'.$lt{'sved'}.'" />'."\n";
802: }
803: $output .= '</fieldset></div>'."\n".
804: '<div id="file" class="LC_left_float" style="display: '.$display{'file'}.'">'."\n".
805: '<fieldset><legend>'.$lt{'file'}.'</legend>';
806: if ($uploaded) {
807: my ($absurl,$filename,$depbutton) = &syllabus_file_info($uploaded,$cnum,$cdom,$lonhost,'file');
808: $output .= '<span class="LC_nobreak">'.$lt{'curr'}.' '.
809: '<input type="hidden" name="uploadedfile" value="'.&HTML::Entities::encode($absurl).'?inhibitmenu=yes" id="currfile" />'.
810: '<a href="javascript:extUrlPreview('."'currfile'".');">'.$filename.'</a></span>'.$depbutton.
811: '<br /><br />'.$lt{'rep'};
812: } else {
813: $output .= $lt{'upl'};
814: }
815: $output .= '<br />'."\n".
816: '<span class="LC_nobreak">'.
817: '<input type="file" name="syllabusfile" size="55" />'."\n".
818: ' <input type="submit" name="storefile" value="'.$lt{'save'}.'" />'.
819: '</span><br />'.
820: '<label>'.
821: '<input type="checkbox" name="parserflag" checked="checked" />'.
822: $lt{'parse'}.
823: '</label>'.
824: '</fieldset></div>'.
825: '<div id="templatebox" class="LC_left_float" style="display: '.
826: $display{'templatebox'}.';"><fieldset><legend>'.$lt{'templateboxes'}.
827: ' <input type="button" value="'.&mt('check all').'" '.
828: 'onclick="javascript:checkAll('."document.syllabus.showfield".');javascript:toggleBox('."'all'".');" />'.
829: (' 'x2).
830: '<input type="button" value="'.&mt('uncheck all').'" '.
831: 'onclick="javascript:uncheckAll('."document.syllabus.showfield".');javascript:toggleBox('."'all'".');" />'.
832: '</legend>'.
833: &fields_check_uncheck($fields,$values).
834: '</fieldset><br />'.
835: '<input type="submit" name="storesyl" value="'.&mt('Save All').'" />'.
836: '</div>';
837: $output .= '<div style="padding:0;clear:both;margin:0;border:0"></div>';
838: return $output;
839: }
840:
841: sub syllabus_file_info {
842: my ($item,$cnum,$cdom,$lonhost,$context) = @_;
843: my $protocol = $Apache::lonnet::protocol{$lonhost};
844: $protocol = 'http' if ($protocol ne 'https');
845: my $absurl = $protocol.'://'.&Apache::lonnet::hostname($lonhost).$item;
846: my ($filename) = ($item =~ m{([^/]+)$});
847: my $file=&Apache::lonnet::filelocation("",$item);
848: my ($depbutton,$filetype,$editable);
849: if ($file =~ /\.(xhtml|xml|tex|html|htm)$/) {
850: $filetype=$1;
851: }
852: if ($filetype) {
853: unless ($filetype eq 'tex') {
854: $filetype='html';
855: }
856: }
857: if ($filetype eq 'html') {
858: my $filecontents=&Apache::lonnet::getfile($file);
859: unless ($filecontents eq -1) {
860: my $mm = new File::MMagic;
861: my $mimetype = $mm->checktype_contents($filecontents);
862: if ($mimetype eq 'text/html') {
863: my (%codebase,%allfiles);
864: my $parse_result = &Apache::lonnet::extract_embedded_items($item,\%allfiles,
865: \%codebase,\$filecontents);
866: my $actionurl = "/public/$cdom/$cnum/syllabus";
867: my ($ignore,$num,$numpathchanges,$existing,$mapping) =
868: &Apache::loncommon::ask_for_embedded_content($actionurl,undef,\%allfiles,
869: \%codebase,
870: {'context' => 'rewrites',
871: 'ignore_remote_references' => 1,});
872: $editable = 1;
873: }
874: }
875: }
876: $depbutton = (' ' x 3).
877: &editfile_button($item,$context,$editable).
878: &editbutton_js();
879: return ($absurl,$filename,$depbutton);
880: }
881:
882: sub fields_check_uncheck {
883: my ($fields,$values) = @_;
884: return unless ((ref($fields) eq 'HASH') && (ref($values) eq 'HASH'));
885: my $numinrow = 4;
886: my $table;
887: my @fieldnames = sort(keys(%{$fields}));
888: unshift(@fieldnames,'000_showpeople','111_showrssfeeds');
889: my $numfields = scalar(@fieldnames);
890: my %included;
891: if (($values->{'uploaded.fields'}) && ($values->{'uploaded.fields'} ne 'none')) {
892: map { $included{$_} = 1; } split(/,/,$values->{'uploaded.fields'});
893: }
894: for (my $i=0; $i<$numfields; $i++) {
895: my ($name,$checked);
896: if ($fieldnames[$i] eq '000_showpeople') {
897: $name = &mt('Personnel');
898: } elsif ($fieldnames[$i] eq '111_showrssfeeds') {
899: $name = &mt('RSS Feeds and Blogs');
900: } else {
901: $name = $fields->{$fieldnames[$i]};
902: }
903: if ($values->{'uploaded.fields'}) {
904: unless ($values->{'uploaded.fields'} eq 'none') {
905: my ($prefix) = split(/_/,$fieldnames[$i]);
906: if ($included{$prefix}) {
907: $checked = ' checked="checked"';
908: }
909: }
910: } else {
911: if ($fieldnames[$i] eq '000_showpeople') {
912: $checked = ' checked="checked"';
913: } elsif ($fieldnames[$i] eq '111_showrssfeeds') {
914: $checked = ' checked="checked"';
915: } else {
916: if ($values->{$fieldnames[$i]} ne '') {
917: $checked = ' checked="checked"';
918: }
919: }
920: }
921: my $rem = $i%($numinrow);
922: if ($rem == 0) {
923: if (($i > 0) && ($i < $numfields)) {
924: $table .= '</tr>';
925: }
926: if ($i < $numfields) {
927: $table .= '<tr>';
928: }
929: }
930: if ($i == $numfields-1) {
931: my $rem = $numfields%($numinrow);
932: my $colsleft = $numinrow - $rem;
933: if ($colsleft > 1) {
934: $table .= '<td colspan="'.$colsleft.'">';
935: } else {
936: $table .= '</td>';
937: }
938: } else {
939: $table .= '<td>';
940: }
941: $table .=
942: '<label><input type="checkbox" name="showfield" value="'.$fieldnames[$i].'" '.
943: $checked.' id="showfield_'.$i.'" onclick="javascript:toggleBox('."'$fieldnames[$i]',this".');" />'.
944: $name.'</label></td>'."\n";
945: }
946: if ($table ne '') {
947: my $rem = $numfields%($numinrow);
948: my $colsleft = $numinrow - $rem;
949: if ($colsleft > 1 ) {
950: $table .= '<td colspan="'.$colsleft.'"> </td>';
951: } elsif ($colsleft == 1) {
952: $table .= '<td> </td>';
953: }
954: $table = '<table>'.$table.'</tr></table>';
955: }
956: return $table;
957: }
958:
959: sub get_personnel {
960: my ($r,$target,$cdom,$cnum,$allowed,$crstype,$syllabus) = @_;
961: my (%hiddenroles,%hiddenusers);
962: if (ref($syllabus) eq 'HASH') {
963: if (ref($syllabus->{'personnel'}) eq 'HASH') {
964: if ($syllabus->{'personnel'}{'hiderole'}) {
965: map { $hiddenroles{$_} = 1; } split(/,/,$syllabus->{'personnel'}{'hiderole'});
966: }
967: if ($syllabus->{'personnel'}{'hideuser'}) {
968: map { $hiddenusers{$_} = 1; } split(/,/,$syllabus->{'personnel'}{'hideuser'});
969: }
970: }
971: }
972: my $output;
973: my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum,1);
974: if ($target ne 'tex') {
975: if ($allowed) {
976: $r->print(&Apache::loncommon::start_data_table().
977: &Apache::loncommon::start_data_table_header_row().
978: '<th>'.&mt('Role hidden?').'</th><th>'.&mt('Role').'</th>'.
979: '<th>'.&mt('Personnel (hidden if checked)').'</th>'.
980: &Apache::loncommon::end_data_table_header_row());
981: } else {
982: $r->print(&Apache::lonhtmlcommon::start_pick_box());
983: }
984: } else {
985: $r->print('\begin{tabular}{|p{0.45\textwidth}|p{0.45\textwidth}|}\hline');
986: }
987: my @personnel=sort(keys(%coursepersonnel));
988: my $lastpers=$personnel[$#personnel];
989: foreach my $element (@personnel) {
990: unless ($allowed) {
991: next if ($hiddenroles{$element})
992: }
993: my ($role,$sec);
994: if ($element =~ /:/) {
995: ($role,$sec) = split(/:/,$element);
996: } else {
997: $role = $element;
998: }
999: my $roletext = &Apache::lonnet::plaintext($role,$crstype);
1000: if ($sec) {
1001: $roletext .=' ('.&Apache::lonlocal::mt('Section [_1]',$sec).')';
1002: }
1003: if ($target ne 'tex') {
1004: if ($allowed) {
1005: my $checked;
1006: if ($hiddenroles{$element}) {
1007: $checked = ' checked="checked"';
1008: }
1009: $r->print(&Apache::loncommon::start_data_table_row().
1010: '<td>'.
1011: '<input type="checkbox" name="hiderole" value="'.$element.'" '.
1012: $checked.' />'.
1013: '</td><td>'.$roletext.'</td><td>');
1014: } else {
1015: $r->print(&Apache::lonhtmlcommon::row_title($roletext));
1016: }
1017: } else {
1018: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$roletext).' & ');
1019: }
1020: my @coursepersonlist;
1021: foreach my $user (split(/\,/,$coursepersonnel{$element})) {
1022: my ($puname,$pudom)=split(/\:/,$user);
1023: if ($target ne 'tex') {
1024: my $courseperson = &Apache::loncommon::plainname($puname,$pudom);
1025: my $checked;
1026: if ($hiddenusers{$element.'&'.$puname.':'.$pudom}) {
1027: $checked = ' checked="checked"';
1028: }
1029: if ($allowed) {
1030: my $item = '<span class="LC_nobreak"><label>'.
1031: '<input type="checkbox" name="hideuser" value="'.$element.'&'.$puname.':'.$pudom.'"'.$checked.' />'.
1032: &Apache::loncommon::aboutmewrapper($courseperson
1033: ,
1034: $puname,$pudom).
1035: '</label>'.(' 'x2).'</span> ';
1036: push(@coursepersonlist,$item);
1037:
1038: } else {
1039: next if ($hiddenusers{$element.'&'.$puname.':'.$pudom});
1040: if (($env{'user.name'} eq '') || ($env{'user.name'} eq 'public') ||
1041: ($env{'user.domain'} eq '') || ($env{'user.domain'} eq 'public')) {
1042: push(@coursepersonlist,$courseperson);
1043: } else {
1044: push(@coursepersonlist,&Apache::loncommon::aboutmewrapper($courseperson,
1045: $puname,$pudom));
1046: }
1047: }
1048: } else {
1049: push(@coursepersonlist,&Apache::loncommon::plainname($puname,
1050: $pudom).' ');
1051: }
1052: }
1053: if ($allowed) {
1054: $r->print(join('',@coursepersonlist));
1055: } else {
1056: $r->print(join(', ',@coursepersonlist));
1057: }
1058: if ($target ne 'tex') {
1059: if ($allowed) {
1060: $r->print('</td>'.&Apache::loncommon::end_data_table_row());
1061: } else {
1062: my $lastclose=$element eq $lastpers?1:0;
1063: $r->print(&Apache::lonhtmlcommon::row_closure($lastclose));
1064: }
1065: } else {
1066: $r->print('\\\\ \hline');
1067: }
1068: }
1069: if ($target ne 'tex') {
1070: if ($allowed) {
1071: $r->print(&Apache::loncommon::end_data_table());
1072: } else {
1073: $r->print(&Apache::lonhtmlcommon::end_pick_box());
1074: }
1075: } else {
1076: $r->print('\end{tabular}\\\\');
1077: }
1078: return;
1079: }
1080:
1081: sub save_changes {
1082: my ($cnum,$cdom,$uploaded,$external,$minimal,$syllabus,$syllabusfields,$courseenv) = @_;
1083: my ($earlyout,$output);
1084: unless ((ref($syllabus) eq 'HASH') && (ref($syllabusfields) eq 'HASH')) {
1085: return ($earlyout,$uploaded,$external,$minimal,$output);
1086: }
1087: if (($env{'form.deleteuploaded_file'}) || ($env{'form.deleteuploaded_minimal'})) {
1088: my %storehash;
1089: if (($env{'form.choice'} eq 'file') &&
1090: ($env{'form.deleteuploaded_file'}) && ($uploaded =~ /\w/)) {
1091: &Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.uploadedsyllabus');
1092: &Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.externalsyllabus');
1093: $storehash{'uploadedsyllabus'} = '';
1094: $storehash{'externalsyllabus'} = '';
1095: my $putres = &Apache::lonnet::put('environment',\%storehash,$cdom,$cnum);
1096: undef($uploaded);
1097: undef($external);
1098: } elsif (($env{'form.choice'} eq 'minimal') &&
1099: ($env{'form.deleteuploaded_minimal'}) && ($minimal =~ /\w/)) {
1100: &Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.externalsyllabus');
1101: &Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.minimalsyllabus');
1102: $storehash{'externalsyllabus'} = '';
1103: $storehash{'minimalsyllabus'} = '';
1104: my $putres = &Apache::lonnet::put('environment',\%storehash,$cdom,$cnum);
1105: undef($external);
1106: undef($minimal);
1107: }
1108: } elsif ($env{'form.choice'} eq 'template') {
1109: #store what the user typed in to the template
1110: my @shown = &Apache::loncommon::get_env_multiple('form.showfield');
1111: $syllabus->{'uploaded.fields'} = '';
1112: if (@shown == 0) {
1113: $syllabus->{'uploaded.fields'} = 'none';
1114: } else {
1115: foreach my $field (sort(@shown)) {
1116: if (($field eq '000_showpeople') ||
1117: ($field eq '111_showrssfeeds') ||
1118: ($syllabusfields->{$field})) {
1119: my ($prefix) = split(/_/,$field);
1120: $syllabus->{'uploaded.fields'} .= $prefix.',';
1121: }
1122: if ($field eq '000_showpeople') {
1123: my @hideusers = &Apache::loncommon::get_env_multiple('form.hideuser');
1124: my @hideroles = &Apache::loncommon::get_env_multiple('form.hiderole');
1125: my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum,1);
1126: my %personnel;
1127: foreach my $key (keys(%coursepersonnel)) {
1128: map { $personnel{$key}{$_} = 1; } split(/,/,$coursepersonnel{$key});
1129: }
1130: %{$syllabus->{'personnel'}} = ();
1131: $syllabus->{'personnel'}{'hideuser'} = '';
1132: $syllabus->{'personnel'}{'hiderole'} = '';
1133: foreach my $role (@hideroles) {
1134: if (exists($personnel{$role})) {
1135: $syllabus->{'personnel'}{'hiderole'} .= $role.',';
1136: }
1137: }
1138: foreach my $item (@hideusers) {
1139: my ($role,$user) = split(/\&/,$item);
1140: if (ref($personnel{$role}) eq 'HASH') {
1141: if ($personnel{$role}{$user}) {
1142: $syllabus->{'personnel'}{'hideuser'} .= $item.',';
1143: }
1144: }
1145: }
1146: $syllabus->{'personnel'}{'hideuser'} =~ s/,$//;
1147: $syllabus->{'personnel'}{'hiderole'} =~ s/,$//;
1148: }
1149: }
1150: $syllabus->{'uploaded.fields'} =~ s/,$//;
1151: }
1152: foreach my $syl_field (keys(%{$syllabusfields})) {
1153: my $field=$env{'form.'.$syl_field};
1154: chomp($field);
1155: $field=~s/\s+$//s;
1156: $field=~s/^\s+//s;
1157: $field=~s/\<br\s*\/*\>$//s;
1158: $field=&Apache::lonfeedback::clear_out_html($field,1);
1159: #here it will be stored
1160: $syllabus->{$syl_field}=$field;
1161: if ($syl_field eq 'lll_includeurl') { # clean up included URLs
1162: my $field='';
1163: foreach my $value (split(/\n/,$syllabus->{$syl_field})) {
1164: my $url=$value;
1165: # get rid of leading and trailing spaces
1166: $url=~s/^\s+//;
1167: $url=~s/\s+$//;
1168: if ($url=~m|^https?\://([^/]+)/(.+)$|) {
1169: my $host = $1;
1170: my $remainder=$2;
1171: # remove the hostname from internal URLs
1172: my $hostname = &Apache::lonnet::hostname($host);
1173: my %all_hostnames = &Apache::lonnet::all_hostnames();
1174: foreach my $possible_host (keys(%all_hostnames)) {
1175: if ($possible_host =~ /\Q$hostname\E/i) {
1176: $url=$remainder;
1177: }
1178: }
1179: }
1180: # norm internal URLs
1181: unless ($url=~/^https?\:/) {
1182: $url=&Apache::lonnet::clutter($url);
1183: }
1184: # re-assemble field
1185: if ($url) {
1186: $field.=$url."\n";
1187: }
1188: }
1189: $syllabus->{$syl_field}=$field;
1190: }
1191: }
1192: my $now = time;
1193: $syllabus->{'uploaded.domain'}=$env{'user.domain'};
1194: $syllabus->{'uploaded.name'}=$env{'user.name'};
1195: $syllabus->{'uploaded.lastmodified'} = $now;
1196: my $putres = &Apache::lonnet::put('syllabus',$syllabus,$cdom,$cnum);
1197: if ($putres eq 'ok') {
1198: ($uploaded,$minimal,$external) =
1199: &update_syllabus_env($cdom,$cnum,$courseenv,$env{'form.choice'},$uploaded,
1200: $minimal,$external);
1201: $output = '<div>'.
1202: &Apache::lonhtmlcommon::confirm_success(&mt('Template saved.')).
1203: '</div>';
1204: } else {
1205: $output = '<div class="LC_error">'.
1206: &mt('An error occurred storing the template: [_1]',$putres).
1207: '</div>';
1208: }
1209: } elsif ($env{'form.choice'} eq 'url') {
1210: if ($env{'form.externalsyllabus'} =~ m{^https?://}) {
1211: if ($env{'form.externalsyllabus'} eq $external) {
1212: $output = '<div class="LC_info">'.
1213: &mt('External URL unchanged.').
1214: '</div>';
1215: ($uploaded,$minimal,$external) =
1216: &update_syllabus_env($cdom,$cnum,$courseenv,$env{'form.choice'},$uploaded,
1217: $minimal,$external);
1218: } else {
1219: $external=$env{'form.externalsyllabus'};
1220: $external =~ s/(`)//g;
1221: my $putres =
1222: &Apache::lonnet::put('environment',{externalsyllabus=>$external},
1223: $cdom,$cnum);
1224: if ($putres eq 'ok') {
1225: &Apache::lonnet::appenv({'course.'.$env{'request.course.id'}.'.externalsyllabus' => $external});
1226: $output = '<div>'.
1227: &Apache::lonhtmlcommon::confirm_success(&mt('External URL saved.')).
1228: '</div>';
1229: ($uploaded,$minimal,$external) =
1230: &update_syllabus_env($cdom,$cnum,$courseenv,$env{'form.choice'},$uploaded,
1231: $minimal,$external);
1232: } else {
1233: $output = '<div class="LC_error">'.
1234: &mt('An error occurred storing the external URL: [_1]',$putres).
1235: '</div>';
1236: }
1237: }
1238: } else {
1239: $output = '<div class="LC_error">'.
1240: &mt('External URL not saved -- invalid URL.').
1241: '</div>';
1242: }
1243: } elsif (($env{'form.choice'} eq 'file') || ($env{'form.choice'} eq 'minimal')) {
1244: # Process file upload - phase one - upload and parse primary file.
1245: my ($upload_result,$uploadphase,$url,$needlink,$error,$errormsg);
1246: if ($env{'form.choice'} eq 'file') {
1247: if ($env{'form.syllabusfile.filename'}) {
1248: my %allfiles = ();
1249: my %codebase = ();
1250: ($url,$needlink) = &process_upload(\$output,$cnum,$cdom,
1251: \%allfiles,\%codebase);
1252: } else {
1253: $output = '<div class="LC_info">';
1254: &mt('No file uploaded').
1255: '</div>';
1256: }
1257: } elsif ($env{'form.choice'} eq 'minimal') {
1258: my $title = $env{'form.syllabustitle'};
1259: $title =~ s{`}{}g;
1260: $title=~s/^\s+//;
1261: $title=~s/\s+$//;
1262: if ($title eq '') {
1263: $title = &mt('Syllabus');
1264: }
1265: my $initialtext = &mt('Replace with your own content.');
1266: my $newhtml = <<END;
1267: <html>
1268: <head>
1269: <title>$title</title>
1270: </head>
1271: <body bgcolor="#ffffff">
1272: <h2>$title</h2>
1273: $initialtext
1274: </body>
1275: </html>
1276: END
1277: $env{'form.output'}=$newhtml;
1278: $url =
1279: &Apache::lonnet::finishuserfileupload($cnum,$cdom,'output',
1280: 'portfolio/syllabus/loncapa.html');
1281: }
1282: if ($url =~ m{^/uploaded/\Q$cdom\E/\Q$cnum\E.*/[^/]+$}) {
1283: my $exturl = &home_http_host($cdom,$cnum);
1284: if ($exturl) {
1285: $exturl .= $url;
1286: }
1287: my %storehash;
1288: if ($env{'form.choice'} eq 'minimal') {
1289: $storehash{'minimalsyllabus'} = $url;
1290: } else {
1291: $storehash{'uploadedsyllabus'} = $url;
1292: }
1293: if ($exturl) {
1294: $storehash{'externalsyllabus'} = $exturl;
1295: if ($exturl =~ /\.(html?|txt|js|css)$/) {
1296: $exturl .= '?inhibitmenu=yes';
1297: }
1298: } else {
1299: $storehash{'externalsyllabus'} = '',
1300: }
1301: my $putres =
1302: &Apache::lonnet::put('environment',\%storehash,$cdom,$cnum);
1303: if ($putres eq 'ok') {
1304: &Apache::lonnet::make_public_indefinitely($url);
1305: foreach my $key (keys(%storehash)) {
1306: &Apache::lonnet::appenv({'course.'.$env{'request.course.id'}.'.'.$key => $storehash{$key}});
1307: }
1308: if ($env{'form.choice'} eq 'minimal') {
1309: $minimal = $url;
1310: } else {
1311: $uploaded = $url;
1312: }
1313: if ($needlink) {
1314: $output .= &return_to_editor($cdom,$cnum);
1315: $earlyout = 1;
1316: }
1317: ($uploaded,$minimal,$external) =
1318: &update_syllabus_env($cdom,$cnum,$courseenv,$env{'form.choice'},$uploaded,
1319: $minimal,$external);
1320: } else {
1321: $error = 1;
1322: $errormsg = $putres;
1323: }
1324: } else {
1325: $error = 1;
1326: }
1327: if ($error) {
1328: $output = '<div class="LC_error">';
1329: if ($env{'form.choice'} eq 'minimal') {
1330: $output = &mt('An error occurred creating the minimal template file [_1]',$errormsg);
1331: } else {
1332: $output = &mt('An error occurred storing the uploaded file [_1]',$errormsg);
1333: }
1334: $output .= '</div>';
1335: }
1336: } elsif ($env{'form.phase'} eq 'upload_embedded') {
1337: # Process file upload - phase two - upload embedded objects
1338: my $uploadphase = 'check_embedded';
1339: my $primaryurl = &HTML::Entities::encode($env{'form.primaryurl'},'<>&"');
1340: my $state = &embedded_form_elems($uploadphase,$primaryurl);
1341: my $url_root = '/uploaded/'.$cdom.'/'.$cnum;
1342: my $actionurl = "/public/$cdom/$cnum/syllabus";
1343: my ($result,$flag,$numpathchgs) =
1344: &Apache::loncommon::upload_embedded('syllabus','portfolio/syllabus',
1345: $cnum,$cdom,'/userfiles',$url_root,undef,undef,undef,$state,
1346: $actionurl);
1347: unless ($numpathchgs) {
1348: my $modres =
1349: &Apache::loncommon::modify_html_refs('syllabus','portfolio/syllabus',
1350: $cnum,$cdom,
1351: '/userfiles',$env{'form.primaryurl'});
1352: $result .= $modres;
1353: }
1354: $output = $result.&return_to_editor($cdom,$cnum);
1355: $earlyout = 1;
1356: } elsif ($env{'form.phase'} eq 'check_embedded') {
1357: # Process file upload - phase three - modify references in HTML file
1358: my $uploadphase = 'modified_orightml';
1359: my $result =
1360: &Apache::loncommon::modify_html_refs('syllabus','portfolio/syllabus',
1361: $cnum,$cdom,
1362: '/userfiles',$env{'form.primaryurl'});
1363: $output = $result.&return_to_editor($cdom,$cnum);
1364: $earlyout = 1;
1365: }
1366: return ($earlyout,$uploaded,$external,$minimal,$output);
1367: }
1368:
1369: sub update_syllabus_env {
1370: my ($cdom,$cnum,$courseenv,$saved,$uploaded,$minimal,$external) = @_;
1371: return ($uploaded,$minimal,$external) unless(ref($courseenv) eq 'HASH');
1372: my $now = time;
1373: my (@envkeys,%storehash);
1374: if ($saved eq 'template') {
1375: if ($uploaded) {
1376: push(@envkeys,'uploaded');
1377: }
1378: if ($minimal) {
1379: push(@envkeys,'minimal');
1380: }
1381: if ($external) {
1382: push(@envkeys,'external');
1383: }
1384: $storehash{'updatedsyllabus'} = $now;
1385: &Apache::lonnet::appenv({'course.'.$env{'request.course.id'}.'.updatedsyllabus' => $now
1386: });
1387: } elsif ($saved eq 'url') {
1388: my $prefix = &home_http_host($cdom,$cnum);
1389: if ($external =~ m{^\Q$prefix/uploaded/$cdom/$cnum/portfolio/syllabus/\E(.+)$}) {
1390: my $file = $1;
1391: if ($file eq 'loncapa.html') {
1392: if ($uploaded) {
1393: push(@envkeys,'uploaded');
1394: }
1395: } elsif ($minimal) {
1396: push(@envkeys,'minimal');
1397: }
1398: } else {
1399: if ($uploaded) {
1400: push(@envkeys,'uploaded');
1401: }
1402: if ($minimal) {
1403: push(@envkeys,'minimal');
1404: }
1405: }
1406: } elsif ($saved eq 'file') {
1407: if ($minimal) {
1408: push(@envkeys,'minimal');
1409: }
1410: } elsif ($saved eq 'minimal') {
1411: if ($uploaded) {
1412: push(@envkeys,'uploaded');
1413: }
1414: }
1415: if (@envkeys > 0) {
1416: foreach my $item (@envkeys) {
1417: my $key = $item.'syllabus';
1418: if ($courseenv->{$key} ne '') {
1419: &Apache::lonnet::delenv('course.'.$env{'request.course.id'}.'.'.$key);
1420: $storehash{$key} = '';
1421: }
1422: if ($item eq 'uploaded') {
1423: undef($uploaded);
1424: }
1425: if ($item eq 'external') {
1426: undef($external);
1427: }
1428: if ($item eq 'minimal') {
1429: undef($minimal);
1430: }
1431: }
1432: }
1433: if (keys(%storehash) > 0) {
1434: &Apache::lonnet::put('environment',\%storehash,$cdom,$cnum);
1435: }
1436: return ($uploaded,$minimal,$external);
1437: }
1438:
1439: sub home_http_host {
1440: my ($cdom,$cnum) = @_;
1441: my $home=&Apache::lonnet::homeserver($cnum,$cdom);
1442: if ($home ne 'no_host') {
1443: my $protocol = $Apache::lonnet::protocol{$home};
1444: $protocol = 'http' if ($protocol ne 'https');
1445: return $protocol.'://'.$home;
1446: }
1447: return;
1448: }
1449:
1450: sub process_upload {
1451: my ($upload_output,$cnum,$cdom,$allfiles,$codebase) = @_;
1452: my ($parseaction,$showupload,$mimetype);
1453: my $dest = 'portfolio/syllabus';
1454: if ($env{'form.parserflag'}) {
1455: $parseaction = 'parse';
1456: }
1457: my $url=&Apache::lonnet::userfileupload('syllabusfile','syllabus',$dest,
1458: $parseaction,$allfiles,
1459: $codebase,undef,undef,undef,undef,
1460: undef,undef,\$mimetype);
1461: if ($url =~ m{^/uploaded/\Q$cdom\E/\Q$cnum\E.*/([^/]+)$}) {
1462: my $stored = $1;
1463: $showupload = '<p>'.&mt('Uploaded [_1]',
1464: '<span class="LC_filename">'.$stored.'</span>').
1465: '</p>';
1466: } else {
1467: my ($filename) = ($env{'form.syllabusfile.filename'} =~ m{([^/]+)$});
1468: $$upload_output = '<div class="LC_error" id="uploadfileresult">'.
1469: &mt('Unable to save file [_1].',
1470: '<span class="LC_filename">'.$filename.'</span>').
1471: '</div>';
1472: return ();
1473: }
1474: my $needlink;
1475: if (($parseaction eq 'parse') && ($mimetype eq 'text/html')) {
1476: $$upload_output = $showupload;
1477: my $total_embedded = scalar(keys(%{$allfiles}));
1478: if ($total_embedded > 0) {
1479: my $uploadphase = 'upload_embedded';
1480: my $primaryurl = &HTML::Entities::encode($url,'<>&"');
1481: my $state = &embedded_form_elems($uploadphase,$primaryurl);
1482: my $actionurl = "/public/$cdom/$cnum/syllabus";
1483: my ($embedded,$num,$numpathchanges,$existing);
1484: ($embedded,$num,$numpathchanges,$existing) =
1485: &Apache::loncommon::ask_for_embedded_content($actionurl,$state,
1486: $allfiles,$codebase,
1487: {'error_on_invalid_names' => 1,
1488: 'ignore_remote_references' => 1,});
1489: if ($embedded) {
1490: $needlink = 1;
1491: if ($num) {
1492: $$upload_output .=
1493: '<p>'.&mt('This file contains embedded multimedia objects, which need to be uploaded.').'</p>'.$embedded;
1494: } elsif ($numpathchanges) {
1495: $$upload_output .= $embedded;
1496: } else {
1497: $$upload_output .= $embedded;
1498: &Apache::loncommon::modify_html_refs('syllabus','portfolio/syllabus',
1499: $cnum,$cdom,'/userfiles',$url);
1500: }
1501: } else {
1502: $$upload_output .= &mt('Embedded item(s) already present, so no additional upload(s) required').'<br />';
1503: &Apache::loncommon::modify_html_refs('syllabus','portfolio/syllabus',
1504: $cnum,$cdom,'/userfiles',$url);
1505:
1506: }
1507: } else {
1508: $$upload_output .= &mt('No embedded items identified').'<br />';
1509: }
1510: $$upload_output = '<div id="uploadfileresult">'.$$upload_output.'</div>';
1511: }
1512: return ($url,$needlink);
1513: }
1514:
1515: sub embedded_form_elems {
1516: my ($phase,$primaryurl) = @_;
1517: return <<STATE;
1518: <input type="hidden" name="forceedit" value="1" />
1519: <input type="hidden" name="cmd" value="upload_embedded" />
1520: <input type="hidden" name="phase" value="$phase" />
1521: <input type="hidden" name="primaryurl" value="$primaryurl" />
1522: STATE
1523: }
1524:
1525: sub return_to_editor {
1526: my ($cdom,$cnum) = @_;
1527: my $actionurl = "/public/$cdom/$cnum/syllabus";
1528: return '<p><form name="backtoeditor" method="post" action="'.$actionurl.'" />'.
1529: '<input type="hidden" name="forceedit" value="1" />'."\n".
1530: '<a href="javascript:document.backtoeditor.submit();">'.&mt('Return to Editor').
1531: '</a></p>';
1532: }
1533:
1534: sub editfile_button {
1535: my ($url,$context,$editable) = @_;
1536: my $edittext=&mt('Edit');
1537: my $deltext=&mt('Delete');
1538: my $output;
1539: if ($editable) {
1540: $output = '
1541: <input type="button" value="'.$edittext.'" onclick="javascript:gotoeditor('."'$url'".');" name="edit_'.$context.'" />
1542: ';
1543: }
1544: $output .= '
1545: <input type="button" value="'.$deltext.'" onclick="javascript:dodelete('."'$context'".');" name="del_'.$context.'" />
1546: <input type="hidden" value="" name="deleteuploaded_'.$context.'" id="deleteuploaded_'.$context.'" />
1547: ';
1548: return $output;
1549: }
1550:
1551: sub editbutton_js {
1552: my %lt = &Apache::lonlocal::texthash(
1553: min => 'Are you sure you want to delete the contents of the syllabus template?',
1554: file => 'Are you sure you want to delete the uploaded syllabus file?',
1555: noundo => 'This action cannot be reversed.'
1556: );
1557: return <<ENDJS;
1558: <script type="text/javascript">
1559: // <![CDATA[
1560: function gotoeditor(url) {
1561: document.location.href = url+'?editmode=1&forceedit=1';
1562: }
1563: function dodelete(caller,url) {
1564: if (document.getElementById('deleteuploaded_'+caller)) {
1565: document.getElementById('deleteuploaded_'+caller).value=1;
1566: if (caller == 'minimal') {
1567: if (confirm("$lt{'min'}"+"\\n"+"$lt{'noundo'}")) {
1568: document.syllabus.submit();
1569: }
1570: }
1571: if (caller == 'file') {
1572: if (confirm("$lt{'file'}"+"\\n"+"$lt{'noundo'}")) {
1573: document.syllabus.submit();
1574: }
1575: }
1576: }
1577: return;
1578: }
1579: // ]]>
1580: </script>
1581: ENDJS
1582: }
1583:
1584: 1;
1585: __END__
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