Annotation of loncom/interface/lonsyllabus.pm, revision 1.83
1.1 www 1: # The LearningOnline Network
2: # Syllabus
3: #
1.83 ! bisitz 4: # $Id: lonsyllabus.pm,v 1.82 2009/03/07 15:07:09 neumanie Exp $
1.1 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: #
28:
29: package Apache::lonsyllabus;
30:
31: use strict;
1.70 amueller 32: use Apache::lontemplate;
1.1 www 33: use Apache::Constants qw(:common);
34: use Apache::loncommon;
35: use Apache::lonnet;
1.5 www 36: use Apache::lontexconvert;
1.11 www 37: use Apache::lonfeedback;
1.19 www 38: use Apache::lonannounce;
1.23 www 39: use Apache::lonlocal;
1.32 www 40: use Apache::lonhtmlcommon;
1.38 www 41: use Apache::lonspeller();
1.54 albertel 42: use HTML::Entities();
1.1 www 43:
44: sub handler {
45: my $r = shift;
1.46 www 46: &Apache::loncommon::content_type($r,'text/html');
47: $r->send_http_header;
48: return OK if $r->header_only;
1.45 www 49:
1.46 www 50: my $target=$env{'form.grade_target'};
1.45 www 51: # --------------------------------------------------- Get course info from URL
52: my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
1.46 www 53: # ------------------------------------------------------------ Get query string
54: &Apache::loncommon::get_unprocessed_cgi
1.47 www 55: ($ENV{'QUERY_STRING'},['forcestudent','register','forceedit','wrapperdisplay']);
1.45 www 56: # ----------------------------------------------------- Is this even a course?
57: my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom);
58: if ($homeserver eq 'no_host') {
59: &Apache::loncommon::content_type($r,'text/html');
60: $r->send_http_header;
1.49 albertel 61: &Apache::loncommon::simple_error_page($r,'No syllabus available',
62: 'No syllabus available');
1.45 www 63: return OK;
64: }
65: # ------------------------------------- There is such a course, get environment
66: my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
1.46 www 67:
1.1 www 68: # ------------------------------------------------------------ Print the screen
1.49 albertel 69:
70: if ($target eq 'tex') {
1.40 albertel 71: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
1.28 sakharuk 72: }
1.46 www 73: # -------------------------------------------------- Let's see who handles this
1.47 www 74: my $externalsyllabus=$courseenv{'externalsyllabus'};
1.49 albertel 75:
1.46 www 76: if ($externalsyllabus=~/\w/) {
1.50 albertel 77:
1.47 www 78: if ($env{'form.wrapperdisplay'} eq 'menu') {
1.50 albertel 79: $r->print(&Apache::lonwrapper::simple_menu());
80: } else {
81: $r->print(&Apache::lonwrapper::wrapper("/public/$cdom/$cnum/syllabus?wrapperdisplay=menu",
82: $externalsyllabus));
83: }
84: return OK;
1.47 www 85: }
1.42 www 86:
1.46 www 87: # ------------------------------ The buck stops here: internal syllabus display
1.5 www 88: # --------------------------------------------------------- The syllabus fields
1.23 www 89: my %syllabusfields=&Apache::lonlocal::texthash(
1.5 www 90: 'aaa_instructorinfo' => 'Instructor Information',
91: 'bbb_description' => 'Course Description',
92: 'ccc_prereq' => 'Prerequisites',
1.7 www 93: 'cdc_classhours' => 'Class Hours',
1.5 www 94: 'ddd_officehours' => 'Office Hours',
95: 'eee_helproom' => 'Helproom Hours',
1.7 www 96: 'efe_projectinfo' => 'Project Information',
1.5 www 97: 'fff_examinfo' => 'Exam Information',
1.7 www 98: 'fgf_deadlines' => 'Deadlines',
1.5 www 99: 'ggg_grading' => 'Grading Information',
1.7 www 100: 'hhh_readings' => 'Readings',
101: 'iii_coursepack' => 'Coursepack',
102: 'jjj_weblinks' => 'Web Links',
1.9 www 103: 'kkk_textbook' => 'Textbook',
104: 'lll_includeurl' => 'URLs To Include in Syllabus');
1.6 www 105: # --------------------------------------------------------------- Force Student
106: my $forcestudent='';
1.40 albertel 107: if ($env{'form.forcestudent'}) { $forcestudent='student'; };
1.27 www 108: my $forceedit='';
1.40 albertel 109: if ($env{'form.forceedit'}) { $forceedit='edit'; }
1.5 www 110:
1.45 www 111: # ----------------------------------------------------------------- Make header
1.28 sakharuk 112: if ($target ne 'tex') {
1.60 albertel 113: my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
1.65 raeburn 114: my $js;
115: if ($env{'form.backto'} eq 'coursecatalog') {
116: $js .= <<"ENDSCRIPT";
117:
118: <script type="text/javascript">
119: function ToCatalog(caller) {
120: numidx = getIndexByName('coursenum');
121: if (numidx > -1) {
122: if (caller != 'details') {
123: document.backtocat.elements[numidx].value = '';
124: }
125: }
126: document.backtocat.submit();
127: }
128:
129: function getIndexByName(item) {
130: for (var i=0;i<document.backtocat.elements.length;i++) {
131: if (document.backtocat.elements[i].name == item) {
132: return i;
133: }
134: }
135: return -1;
136: }
137:
138: </script>
139:
140: ENDSCRIPT
141: }
1.49 albertel 142: my $start_page =
1.65 raeburn 143: &Apache::loncommon::start_page("Syllabus", $rss_link.$js,
1.49 albertel 144: {'function' => $forcestudent,
145: 'domain' => $cdom,
146: 'force_register' =>
147: $env{'form.register'},});
148:
1.65 raeburn 149: $r->print($start_page);
150: if ($env{'form.backto'} eq 'coursecatalog') {
151: &Apache::lonhtmlcommon::clear_breadcrumbs();
152: &Apache::lonhtmlcommon::add_breadcrumb
153: ({href=>"javascript:ToCatalog()",
154: text=>"Course Catalog"});
155: if ($env{'form.coursenum'} ne '') {
156: &Apache::lonhtmlcommon::add_breadcrumb
157: ({href=>"javascript:ToCatalog('details')",
158: text=>"Course details"});
159: }
160: &Apache::lonhtmlcommon::add_breadcrumb
161: ({href=>$r->uri,
162: text=>"Course syllabus"});
163: $r->print(&Apache::lonhtmlcommon::breadcrumbs());
1.80 neumanie 164: }
165:
1.17 www 166: }
167: # ---------------------------------------------------------- Load syllabus info
1.4 www 168: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
1.5 www 169: my $allowed=0;
1.27 www 170: my $privileged=0;
1.4 www 171:
1.2 www 172: # This handler might be called anonymously ...
173: # ----------------------------------------------------- Only if not public call
1.40 albertel 174: if ($env{'user.environment'}) {
1.1 www 175: # does this user have privileges to post, etc?
1.53 albertel 176: if ($env{'request.course.id'}
177: && $cdom eq $env{'course.'.$env{'request.course.id'}.'.domain'}
178: && $cnum eq $env{'course.'.$env{'request.course.id'}.'.num'}) {
1.40 albertel 179: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
1.27 www 180: $privileged=$allowed;
181: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
182: $forcestudent='student';
183: }
1.30 sakharuk 184: if ($forcestudent or $target eq 'tex') { $allowed=0; }
1.80 neumanie 185: }
1.40 albertel 186: if (($allowed) && ($env{'form.storesyl'})) {
1.55 albertel 187: foreach my $syl_field (keys(%syllabusfields)) {
188: my $field=$env{'form.'.$syl_field};
1.33 www 189: chomp($field);
1.5 www 190: $field=~s/\s+$//s;
1.33 www 191: $field=~s/^\s+//s;
192: $field=~s/\<br\s*\/*\>$//s;
193: $field=&Apache::lonfeedback::clear_out_html($field,1);
1.55 albertel 194: $syllabus{$syl_field}=$field;
195: if ($syl_field eq 'lll_includeurl') { # clean up included URLs
1.9 www 196: my $field='';
1.55 albertel 197: foreach my $value (split(/\n/,$syllabus{$syl_field})) {
198: my $url=$value;
1.9 www 199: # get rid of leading and trailing spaces
200: $url=~s/^\s+//;
201: $url=~s/\s+$//;
1.75 raeburn 202: if ($url=~m|^https?\://([^/]+)/(.+)$|) {
1.55 albertel 203: my $host = $1;
1.9 www 204: my $remainder=$2;
205: # remove the hostname from internal URLs
1.57 albertel 206: my $hostname = &Apache::lonnet::hostname($host);
207: my %all_hostnames = &Apache::lonnet::all_hostnames();
208: foreach my $possible_host (keys(%all_hostnames)) {
209: if ($possible_host =~ /\Q$hostname\E/i) {
1.9 www 210: $url=$remainder;
211: }
212: }
213: }
214: # norm internal URLs
1.75 raeburn 215: unless ($url=~/^https?\:/) {
1.9 www 216: $url=&Apache::lonnet::clutter($url);
217: }
218: # re-assemble field
219: if ($url) {
220: $field.=$url."\n";
221: }
222: }
1.55 albertel 223: $syllabus{$syl_field}=$field;
1.9 www 224: }
1.5 www 225: }
1.40 albertel 226: $syllabus{'uploaded.domain'}=$env{'user.domain'};
227: $syllabus{'uploaded.name'}=$env{'user.name'};
1.5 www 228: $syllabus{'uploaded.lastmodified'}=time;
229: &Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum);
230: }
1.4 www 231: }
1.81 neumanie 232: #-Pritn Help Text
233: if ($target ne 'tex') {
234: if($allowed){
235: $r->print(&Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')));
236: }
237: }
1.80 neumanie 238: #--------Functions
239: if ($target ne 'tex') {
240: if($allowed || $privileged){
1.83 ! bisitz 241: &Apache::lontemplate::start_functionslist($r);
1.80 neumanie 242: if($allowed){
1.83 ! bisitz 243: &Apache::lontemplate::item_functionslist($r,'<a href="'.$r->uri.'?forcestudent=1">'.&mt('Show Public View').'</a>'.&Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView'));
1.80 neumanie 244: }elsif($privileged){
1.83 ! bisitz 245: &Apache::lontemplate::item_functionslist($r,'<a href="'.$r->uri.'?forceedit=1">'.&mt('Edit').'</a>');
1.80 neumanie 246: }
1.83 ! bisitz 247: &Apache::lontemplate::end_functionslist($r);
1.80 neumanie 248: }
249: }
250: #----------------------------Print Headtitle
251: if($target ne 'tex'){
252: $r->print('<h1>'.$courseenv{'description'}.'</h1>');
253: $r->print('<h3>'. &Apache::lonnet::domain($cdom,'description').'</h3>');
254: }else{
255: $r->print('\noindent{\large\textbf{'.$courseenv{'description'}.'}}\\\\\\\\\textbf{'.
256: &Apache::lonnet::domain($cdom,'description').'}\\\\');
257: }
258: # -------------------------------------------------------- Get course personnel
259: my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
260: if ($target ne 'tex') {
261: $r->print(&Apache::lonhtmlcommon::start_pick_box());
262: } else {
263: $r->print('\begin{tabular}{|p{0.45\textwidth}|p{0.45\textwidth}|}\hline');
264: }
265: my @personnel=sort(keys(%coursepersonnel));
266: my $lastpers=$personnel[$#personnel];
267: foreach my $element (@personnel) {
268: if ($target ne 'tex') {
269: $r->print(&Apache::lonhtmlcommon::row_title($element));
270: } else {
271: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$element).' & ');
272: }
273: foreach (split(/\,/,$coursepersonnel{$element})) {
274: my ($puname,$pudom)=split(/\:/,$_);
275: if ($target ne 'tex') {
276: my $courseperson = &Apache::loncommon::plainname($puname,$pudom);
277: if (($env{'user.name'} eq '') || ($env{'user.name'} eq 'public') ||
278: ($env{'user.domain'} eq '') || ($env{'user.domain'} eq 'public')) {
279: $r->print(' '.$courseperson);
280: } else {
281: $r->print(' '.&Apache::loncommon::aboutmewrapper($courseperson,
282: $puname,$pudom));
283: }
284: } else {
285: $r->print(' '.&Apache::loncommon::plainname($puname,
286: $pudom).' ');
287: }
288: }
289: if ($target ne 'tex') {
290: my $lastclose=$element eq $lastpers?1:0;
291: $r->print(&Apache::lonhtmlcommon::row_closure($lastclose));
292: } else {
293: $r->print('\\\\ \hline');
294: }
295: }
296: if ($target ne 'tex') {
297: $r->print(&Apache::lonhtmlcommon::end_pick_box());
298: } else {
299: $r->print('\end{tabular}\\\\');
300: }
1.79 neumanie 301: #----------Print last update
302: my $lastmod=$syllabus{'uploaded.lastmodified'};
1.25 www 303: $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
1.26 albertel 304: my $who = &Apache::loncommon::aboutmewrapper(
305: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
1.7 www 306: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
1.79 neumanie 307: $syllabus{'uploaded.domain'});
308: if ($target ne 'tex') {
1.28 sakharuk 309: $r->print('<table><tr><td>'.&mt('Last updated').':</td><td>'.
1.61 albertel 310: $lastmod.'</td><td>'.
311: ($who ? &mt('by').' '.$who
312: : '' ).
1.79 neumanie 313: '</td></tr></table>');
1.28 sakharuk 314: } else {
1.61 albertel 315: $r->print('\\\\ '.&mt('Last updated').': '.$lastmod.' '.
316: ($who? &mt('by').'\\\\ '.
317: &Apache::loncommon::plainname($syllabus{'uploaded.name'},$syllabus{'uploaded.domain'})
318: :'')
319: .'\\\\');
1.80 neumanie 320: }
321: #---------------------Print Extern URL Course Info
322: if( ($allowed) && ($target ne 'tex') ) {
323: my $protocol = $Apache::lonnet::protocol{$homeserver};
324: $protocol = 'http' if ($protocol ne 'https');
325: $r->print('<p>'.&mt('This syllabus can be publicly viewed at').' <tt>'.$protocol.'://'.&Apache::lonnet::hostname($homeserver).$r->uri.'</tt>'.&Apache::loncommon::help_open_topic('Syllabus_ExtLink').'</p>'.'<p>'.&mt('You can specify an external URL as Syllabus in the [_1].','<a href="/adm/parmset?action=crsenv">'.&mt('Course Parameters').'</a>').'</p>');
326: }
1.79 neumanie 327: # -------------------------------------------------------------- Announcements?
328: my $day = &Apache::lonannounce::showday(time,2,
329: &Apache::lonannounce::readcalendar($cdom.'_'.$cnum));
1.80 neumanie 330: if ($target ne 'tex') {
1.82 neumanie 331: if($allowed){
332: &Apache::lontemplate::print_start_template($r,'RSS Feeds and Blogs','LC_ContentBoxSpecial');
333: $r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit));
334: &Apache::lontemplate::print_end_template($r);
1.80 neumanie 335: }
1.82 neumanie 336: elsif(&Apache::lonrss::advertisefeeds($cnum,$cdom) ne ''){
337: &Apache::lontemplate::print_start_template($r,'RSS Feeds and Blogs','LC_ContentBoxSpecial');
338: $r->print(&Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit));
339: &Apache::lontemplate::print_end_template($r);
1.80 neumanie 340: }
341:
1.79 neumanie 342: } else {
343: $r->print(&Apache::lonxml::xmlparse($r,'tex',$day));
344: }
345: # ---------------------------------------------------------------- Get syllabus
346: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
1.5 www 347: if ($allowed) {
1.27 www 348: $r->print('<form method="post">'.
349: '<input type="hidden" name="forceedit" value="edit" />');
1.5 www 350: }
1.33 www 351: my @htmlids=();
1.77 neumanie 352:
1.73 ehlerst 353: foreach my $field (sort(keys(%syllabusfields))) {
1.55 albertel 354: if (($syllabus{$field}=~/\w/) || ($allowed)) {
355: my $message=$syllabus{$field};
356: if ($field eq 'lll_includeurl') { # this is the "included" field
1.79 neumanie 357: my $urls=$message;
358: $message='';
359: foreach my $filelink (split(/\n/,$urls)) {
1.55 albertel 360: my $output='';
1.79 neumanie 361: # embed style?
362: my ($curfext)=($filelink=~/\.([^\.]+)$/);
363: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
364: if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {# make ssi call and remove everything but the body contents
1.55 albertel 365: $output=&Apache::lonnet::ssi_body($filelink);
1.79 neumanie 366: } elsif ($embstyle eq 'img') {# embed as an image
1.55 albertel 367: $output='<img src="'.$filelink.'" />';
368: }
1.79 neumanie 369: if($output ne ''){
370: if ($target ne 'tex') {
371: $message.='<p>'.$output.'</p>';
372: } else {
373: $message.=' '.&Apache::lonxml::xmlparse($r,'tex','<p>'.$output.'</p>').' ';
374: }
375: }
1.55 albertel 376: }
377: if ($allowed) {
378: $r->print('<h3>'.$syllabusfields{$field}.
1.73 ehlerst 379: &Apache::loncommon::help_open_topic('Syllabus_URLs').'</h3>');
1.55 albertel 380: } else {
381: $r->print($message);
382: }
383: } else {
384: &Apache::lonfeedback::newline_to_br(\$message);
1.75 raeburn 385: $message =~s|(https?\://[^\s]+)|<a href="$1"><tt>$1</tt></a>|g;
1.55 albertel 386: if ($allowed) {
387: $message=&Apache::lonspeller::markeduptext($message);
388: }
389: $message=&Apache::lontexconvert::msgtexconverted($message);
1.73 ehlerst 390: if ($target ne 'tex') {
1.74 ehlerst 391: if($allowed){
392: $r->print('<p>');
1.76 neumanie 393: }
394: &Apache::lontemplate::print_template($r, $syllabusfields{$field}, $message,$allowed,'LC_ContentBoxSpecial');
1.55 albertel 395: } else {
396: $r->print('\\\\\textbf{'.$syllabusfields{$field}.'}\\\\'.
397: &Apache::lonxml::xmlparse($r,'tex',$message).'\\\\');
398: }
399: push(@htmlids,$field);
400: }
401: if ($allowed) {
1.74 ehlerst 402: if($target ne 'tex'){
403: $r->print('</p>');
1.79 neumanie 404: &Apache::lontemplate::print_editbox_template($r, $syllabus{$field}, $field);
1.74 ehlerst 405: }
1.79 neumanie 406:
1.55 albertel 407: }
408: }
1.77 neumanie 409: }
410:
1.5 www 411: if ($allowed) {
1.32 www 412: $r->print('</form>'.
1.33 www 413: &Apache::lonhtmlcommon::htmlareaselectactive(@htmlids));
1.5 www 414: }
1.79 neumanie 415: # if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
1.4 www 416: } else {
1.36 sakharuk 417: if ($target ne 'tex') {$r->print('<p>');} else {$r->print('\par ');}
1.63 bisitz 418: $r->print(&mt('No syllabus information provided.'));
1.36 sakharuk 419: if ($target ne 'tex') {$r->print('</p>');}
1.1 www 420: }
1.79 neumanie 421: if ($target ne 'tex') {
1.65 raeburn 422: if ($env{'form.backto'} eq 'coursecatalog') {
423: $r->print('<form name="backtocat" method="post" action="/adm/coursecatalog">'.
1.66 raeburn 424: &Apache::lonhtmlcommon::echo_form_input(['backto','courseid']).
1.65 raeburn 425: '</form>');
426: }
1.48 albertel 427: $r->print(&Apache::loncommon::end_page());
428: } else {
429: $r->print('\end{document}');
430: }
1.1 www 431: return OK;
432: }
433:
434: 1;
435: __END__
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