Annotation of loncom/interface/lonsyllabus.pm, revision 1.60
1.1 www 1: # The LearningOnline Network
2: # Syllabus
3: #
1.60 ! albertel 4: # $Id: lonsyllabus.pm,v 1.59 2007/05/02 01:33:49 albertel 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;
32: use Apache::Constants qw(:common);
33: use Apache::loncommon;
34: use Apache::lonnet;
1.5 www 35: use Apache::lontexconvert;
1.11 www 36: use Apache::lonfeedback;
1.19 www 37: use Apache::lonannounce;
1.23 www 38: use Apache::lonlocal;
1.32 www 39: use Apache::lonhtmlcommon;
1.38 www 40: use Apache::lonspeller();
1.54 albertel 41: use HTML::Entities();
1.1 www 42:
43: sub handler {
44: my $r = shift;
1.46 www 45: &Apache::loncommon::content_type($r,'text/html');
46: $r->send_http_header;
47: return OK if $r->header_only;
1.45 www 48:
1.46 www 49: my $target=$env{'form.grade_target'};
1.45 www 50: # --------------------------------------------------- Get course info from URL
51: my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
1.46 www 52: # ------------------------------------------------------------ Get query string
53: &Apache::loncommon::get_unprocessed_cgi
1.47 www 54: ($ENV{'QUERY_STRING'},['forcestudent','register','forceedit','wrapperdisplay']);
1.45 www 55: # ----------------------------------------------------- Is this even a course?
56: my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom);
57: if ($homeserver eq 'no_host') {
58: &Apache::loncommon::content_type($r,'text/html');
59: $r->send_http_header;
1.49 albertel 60: &Apache::loncommon::simple_error_page($r,'No syllabus available',
61: 'No syllabus available');
1.45 www 62: return OK;
63: }
64: # ------------------------------------- There is such a course, get environment
65: my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
1.46 www 66:
1.1 www 67: # ------------------------------------------------------------ Print the screen
1.49 albertel 68:
69: if ($target eq 'tex') {
1.40 albertel 70: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
1.28 sakharuk 71: }
1.46 www 72: # -------------------------------------------------- Let's see who handles this
1.47 www 73: my $externalsyllabus=$courseenv{'externalsyllabus'};
1.49 albertel 74:
1.46 www 75: if ($externalsyllabus=~/\w/) {
1.50 albertel 76:
1.47 www 77: if ($env{'form.wrapperdisplay'} eq 'menu') {
1.50 albertel 78: $r->print(&Apache::lonwrapper::simple_menu());
79: } else {
80: $r->print(&Apache::lonwrapper::wrapper("/public/$cdom/$cnum/syllabus?wrapperdisplay=menu",
81: $externalsyllabus));
82: }
83: return OK;
1.47 www 84: }
1.42 www 85:
1.46 www 86: # ------------------------------ The buck stops here: internal syllabus display
1.5 www 87: # --------------------------------------------------------- The syllabus fields
1.23 www 88: my %syllabusfields=&Apache::lonlocal::texthash(
1.5 www 89: 'aaa_instructorinfo' => 'Instructor Information',
90: 'bbb_description' => 'Course Description',
91: 'ccc_prereq' => 'Prerequisites',
1.7 www 92: 'cdc_classhours' => 'Class Hours',
1.5 www 93: 'ddd_officehours' => 'Office Hours',
94: 'eee_helproom' => 'Helproom Hours',
1.7 www 95: 'efe_projectinfo' => 'Project Information',
1.5 www 96: 'fff_examinfo' => 'Exam Information',
1.7 www 97: 'fgf_deadlines' => 'Deadlines',
1.5 www 98: 'ggg_grading' => 'Grading Information',
1.7 www 99: 'hhh_readings' => 'Readings',
100: 'iii_coursepack' => 'Coursepack',
101: 'jjj_weblinks' => 'Web Links',
1.9 www 102: 'kkk_textbook' => 'Textbook',
103: 'lll_includeurl' => 'URLs To Include in Syllabus');
1.6 www 104: # --------------------------------------------------------------- Force Student
105: my $forcestudent='';
1.40 albertel 106: if ($env{'form.forcestudent'}) { $forcestudent='student'; };
1.27 www 107: my $forceedit='';
1.40 albertel 108: if ($env{'form.forceedit'}) { $forceedit='edit'; }
1.5 www 109:
1.45 www 110: # ----------------------------------------------------------------- Make header
1.28 sakharuk 111: if ($target ne 'tex') {
1.60 ! albertel 112: my $rss_link = &Apache::lonrss::rss_link($cnum,$cdom);
! 113:
1.49 albertel 114: my $start_page =
115: &Apache::loncommon::start_page("Syllabus", $rss_link,
116: {'function' => $forcestudent,
117: 'domain' => $cdom,
118: 'force_register' =>
119: $env{'form.register'},});
120:
121: $r->print($start_page.'<h1>'.$courseenv{'description'}.'</h1><h3>'.
1.58 albertel 122: &Apache::lonnet::domain($cdom,'description').'</h3>');
1.28 sakharuk 123: } else {
1.29 sakharuk 124: $r->print('\noindent{\large\textbf{'.$courseenv{'description'}.'}}\\\\\\\\\textbf{'.
1.58 albertel 125: &Apache::lonnet::domain($cdom,'description').'}\\\\');
1.28 sakharuk 126: }
1.19 www 127: # -------------------------------------------------------------- Announcements?
1.49 albertel 128: my $day = &Apache::lonannounce::showday(time,2,
129: &Apache::lonannounce::readcalendar($cdom.'_'.$cnum));
1.35 sakharuk 130: if ($target ne 'tex') {
1.52 www 131: $r->print($day. &Apache::lonrss::advertisefeeds($cnum,$cdom,$forceedit));
1.35 sakharuk 132: } else {
1.49 albertel 133: $r->print(&Apache::lonxml::xmlparse($r,'tex',$day));
1.35 sakharuk 134: }
1.49 albertel 135:
1.17 www 136: # -------------------------------------------------------- Get course personnel
137: my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
1.28 sakharuk 138: if ($target ne 'tex') {
139: $r->print('<table border="2">');
140: } else {
1.37 sakharuk 141: $r->print('\begin{tabular}{|p{0.45\textwidth}|p{0.45\textwidth}|}\hline');
1.28 sakharuk 142: }
1.36 sakharuk 143: foreach my $element (sort keys %coursepersonnel) {
1.28 sakharuk 144: if ($target ne 'tex') {
1.36 sakharuk 145: $r->print('<tr><td>'.$element.'</td><td>');
1.28 sakharuk 146: } else {
1.36 sakharuk 147: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$element).' & ');
1.28 sakharuk 148: }
1.36 sakharuk 149: foreach (split(/\,/,$coursepersonnel{$element})) {
1.17 www 150: my ($puname,$pudom)=split(/\:/,$_);
1.28 sakharuk 151: if ($target ne 'tex') {
152: $r->print(' '.&Apache::loncommon::aboutmewrapper(
153: &Apache::loncommon::plainname($puname,
154: $pudom),$puname,$pudom));
155: } else {
156: $r->print(' '.&Apache::loncommon::plainname($puname,
157: $pudom).' ');
158: }
1.17 www 159: }
1.28 sakharuk 160: if ($target ne 'tex') {
161: $r->print('</td></tr>');
162: } else {
163: $r->print('\\\\ \hline');
164: }
165: }
166: if ($target ne 'tex') {
167: $r->print('</table>');
168: } else {
169: $r->print('\end{tabular}\\\\');
1.17 www 170: }
171: # ---------------------------------------------------------- Load syllabus info
1.4 www 172: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
1.5 www 173: my $allowed=0;
1.27 www 174: my $privileged=0;
1.4 www 175:
1.2 www 176: # This handler might be called anonymously ...
177: # ----------------------------------------------------- Only if not public call
1.40 albertel 178: if ($env{'user.environment'}) {
1.1 www 179: # does this user have privileges to post, etc?
1.53 albertel 180: if ($env{'request.course.id'}
181: && $cdom eq $env{'course.'.$env{'request.course.id'}.'.domain'}
182: && $cnum eq $env{'course.'.$env{'request.course.id'}.'.num'}) {
1.40 albertel 183: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
1.27 www 184: $privileged=$allowed;
185: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
186: $forcestudent='student';
187: }
1.30 sakharuk 188: if ($forcestudent or $target eq 'tex') { $allowed=0; }
1.2 www 189: }
1.6 www 190: if ($allowed) {
1.12 www 191: $r->print('<p>'.
1.23 www 192: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'</p><p>'.&mt('This syllabus can be publicly viewed at')
193: .' <tt>http://'.
1.57 albertel 194: &Apache::lonnet::hostname($homeserver).$r->uri.'</tt>'.
1.10 www 195: &Apache::loncommon::help_open_topic('Syllabus_ExtLink').'</p>'.
1.47 www 196: '<p>'.&mt('You can specify an external URL as Syllabus in the [_1].','<a href="/adm/parmset?action=crsenv">'.&mt('Course Parameters').'</a>').'</p>'.
1.27 www 197: '<p><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.
198: &mt('Show Public View').'</font></a>'.
1.10 www 199: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').
200: '</p>');
1.27 www 201: } elsif ($privileged) {
1.28 sakharuk 202: if ($target ne 'tex') {
203: $r->print('<p><a href="'.$r->uri.'?forceedit=1"><font size="+1">'.
204: &mt('Edit').'</font></a>');
205: }
1.6 www 206: }
1.40 albertel 207: if (($allowed) && ($env{'form.storesyl'})) {
1.55 albertel 208: foreach my $syl_field (keys(%syllabusfields)) {
209: my $field=$env{'form.'.$syl_field};
1.33 www 210: chomp($field);
1.5 www 211: $field=~s/\s+$//s;
1.33 www 212: $field=~s/^\s+//s;
213: $field=~s/\<br\s*\/*\>$//s;
214: $field=&Apache::lonfeedback::clear_out_html($field,1);
1.55 albertel 215: $syllabus{$syl_field}=$field;
216: if ($syl_field eq 'lll_includeurl') { # clean up included URLs
1.9 www 217: my $field='';
1.55 albertel 218: foreach my $value (split(/\n/,$syllabus{$syl_field})) {
219: my $url=$value;
1.9 www 220: # get rid of leading and trailing spaces
221: $url=~s/^\s+//;
222: $url=~s/\s+$//;
1.55 albertel 223: if ($url=~m|^http://([^/]+)/(.+)$|) {
224: my $host = $1;
1.9 www 225: my $remainder=$2;
226: # remove the hostname from internal URLs
1.57 albertel 227: my $hostname = &Apache::lonnet::hostname($host);
228: my %all_hostnames = &Apache::lonnet::all_hostnames();
229: foreach my $possible_host (keys(%all_hostnames)) {
230: if ($possible_host =~ /\Q$hostname\E/i) {
1.9 www 231: $url=$remainder;
232: }
233: }
234: }
235: # norm internal URLs
236: unless ($url=~/^http\:/) {
237: $url=&Apache::lonnet::clutter($url);
238: }
239: # re-assemble field
240: if ($url) {
241: $field.=$url."\n";
242: }
243: }
1.55 albertel 244: $syllabus{$syl_field}=$field;
1.9 www 245: }
1.5 www 246: }
1.40 albertel 247: $syllabus{'uploaded.domain'}=$env{'user.domain'};
248: $syllabus{'uploaded.name'}=$env{'user.name'};
1.5 www 249: $syllabus{'uploaded.lastmodified'}=time;
250: &Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum);
251: }
1.4 www 252: }
253: # ---------------------------------------------------------------- Get syllabus
1.5 www 254: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
1.8 www 255: my $lastmod=$syllabus{'uploaded.lastmodified'};
1.25 www 256: $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
1.26 albertel 257: my $who = &Apache::loncommon::aboutmewrapper(
258: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
1.7 www 259: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
1.26 albertel 260: $syllabus{'uploaded.domain'});
1.28 sakharuk 261: if ($target ne 'tex') {
262: $r->print('<table><tr><td>'.&mt('Last updated').':</td><td>'.
263: $lastmod.'</td><td>'.&mt('by').' '.$who.
264: '</td></tr></table><p>');
265: } else {
266: $r->print('\\\\ '.&mt('Last updated').': '.$lastmod.' '.&mt('by').'\\\\ '.
267: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
268: $syllabus{'uploaded.domain'}).'\\\\');
269: }
1.5 www 270: if ($allowed) {
1.27 www 271: $r->print('<form method="post">'.
272: '<input type="hidden" name="forceedit" value="edit" />');
1.5 www 273: }
1.33 www 274: my @htmlids=();
1.55 albertel 275: foreach my $field (sort(keys(%syllabusfields))) {
276: if (($syllabus{$field}=~/\w/) || ($allowed)) {
277: my $message=$syllabus{$field};
278: if ($field eq 'lll_includeurl') { # this is the "included" field
279: my $urls=$message;
280: $message='';
281: foreach my $filelink (split(/\n/,$urls)) {
282: my $output='';
1.9 www 283: # embed style?
1.55 albertel 284: my ($curfext)=($filelink=~/\.([^\.]+)$/);
285: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
286: if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {
1.9 www 287: # make ssi call and remove everything but the body contents
1.55 albertel 288: $output=&Apache::lonnet::ssi_body($filelink);
289: } elsif ($embstyle eq 'img') {
1.9 www 290: # embed as an image
1.55 albertel 291: $output='<img src="'.$filelink.'" />';
292: }
293: if ($target ne 'tex') {
294: $message.='<p>'.$output.'</p>';
295: } else {
296: $message.=' '.&Apache::lonxml::xmlparse($r,'tex','<p>'.$output.'</p>').' ';
297: }
298: }
299: if ($allowed) {
300: $r->print('<h3>'.$syllabusfields{$field}.
301: &Apache::loncommon::help_open_topic('Syllabus_URLs').'</h3>'.
302: '<p><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.&mt('Show Public View').'</font></a>'.
303: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
304: } else {
305: $r->print($message);
306: }
307: } else {
308: &Apache::lonfeedback::newline_to_br(\$message);
1.56 banghart 309: $message =~s|(https*://[^\s]+)|<a href="$1"><tt>$1</tt></a>|g;
1.55 albertel 310: if ($allowed) {
311: $message=&Apache::lonspeller::markeduptext($message);
312: }
313: $message=&Apache::lontexconvert::msgtexconverted($message);
314: if ($target ne 'tex') {
315: $r->print('<h3>'.$syllabusfields{$field}.'</h3><blockquote>'.
316: $message.'</blockquote>');
317: } else {
318: $r->print('\\\\\textbf{'.$syllabusfields{$field}.'}\\\\'.
319: &Apache::lonxml::xmlparse($r,'tex',$message).'\\\\');
320: }
321: push(@htmlids,$field);
322: }
323: if ($allowed) {
324: $r->print('<br /><textarea cols="80" rows="12" name="'.$field.'" id="'.$field.'">'.
325: &HTML::Entities::encode($syllabus{$field},'"&<>').
1.59 albertel 326: '</textarea> <input type="submit" name="storesyl" value="Save" />');
1.55 albertel 327: }
328: }
1.5 www 329: }
330: if ($allowed) {
1.32 www 331: $r->print('</form>'.
1.33 www 332: &Apache::lonhtmlcommon::htmlareaselectactive(@htmlids));
1.5 www 333: }
1.28 sakharuk 334: if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
1.4 www 335: } else {
1.36 sakharuk 336: if ($target ne 'tex') {$r->print('<p>');} else {$r->print('\par ');}
337: $r->print('No syllabus information provided.');
338: if ($target ne 'tex') {$r->print('</p>');}
1.1 www 339: }
1.48 albertel 340: if ($target ne 'tex') {
341: $r->print(&Apache::loncommon::end_page());
342: } else {
343: $r->print('\end{document}');
344: }
1.1 www 345: return OK;
346: }
347:
348: 1;
349: __END__
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