Annotation of loncom/interface/lonsyllabus.pm, revision 1.43
1.1 www 1: # The LearningOnline Network
2: # Syllabus
3: #
1.43 ! www 4: # $Id: lonsyllabus.pm,v 1.42 2005/11/17 21:33:40 www 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();
1.1 www 41:
42: sub handler {
43: my $r = shift;
1.24 www 44: &Apache::loncommon::content_type($r,'text/html');
1.1 www 45: $r->send_http_header;
46: return OK if $r->header_only;
47:
48: # ------------------------------------------------------------ Print the screen
1.40 albertel 49: my $target=$env{'form.grade_target'};
1.42 www 50: my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
51: my $feedurl='feed://'.$ENV{'HTTP_HOST'}.'/public/'.$cdom.'/'.$cnum.'/Course_Announcements.rss';
1.28 sakharuk 52: if ($target ne 'tex') {
1.39 albertel 53: my $html=&Apache::lonxml::xmlbegin();
1.28 sakharuk 54: $r->print(<<ENDDOCUMENT);
1.39 albertel 55: $html
1.1 www 56: <head>
57: <title>The LearningOnline Network with CAPA</title>
1.42 www 58: <link rel="alternate" type="application/rss+xml" title="Course Announcements" href="$feedurl" />
1.1 www 59: ENDDOCUMENT
1.28 sakharuk 60: } else {
1.40 albertel 61: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
1.28 sakharuk 62: }
1.42 www 63:
1.3 www 64: # Is this even a course?
1.7 www 65: my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom);
66: if ($homeserver eq 'no_host') {
1.23 www 67: $r->print('</head><body>'.&mt('No syllabus available').'</body></html>');
1.3 www 68: return OK;
69: }
1.5 www 70: # --------------------------------------------------------- The syllabus fields
1.23 www 71: my %syllabusfields=&Apache::lonlocal::texthash(
1.5 www 72: 'aaa_instructorinfo' => 'Instructor Information',
73: 'bbb_description' => 'Course Description',
74: 'ccc_prereq' => 'Prerequisites',
1.7 www 75: 'cdc_classhours' => 'Class Hours',
1.5 www 76: 'ddd_officehours' => 'Office Hours',
77: 'eee_helproom' => 'Helproom Hours',
1.7 www 78: 'efe_projectinfo' => 'Project Information',
1.5 www 79: 'fff_examinfo' => 'Exam Information',
1.7 www 80: 'fgf_deadlines' => 'Deadlines',
1.5 www 81: 'ggg_grading' => 'Grading Information',
1.7 www 82: 'hhh_readings' => 'Readings',
83: 'iii_coursepack' => 'Coursepack',
84: 'jjj_weblinks' => 'Web Links',
1.9 www 85: 'kkk_textbook' => 'Textbook',
86: 'lll_includeurl' => 'URLs To Include in Syllabus');
1.5 www 87:
1.14 www 88: # ------------------------------------------------------------ Get query string
89: &Apache::loncommon::get_unprocessed_cgi
1.27 www 90: ($ENV{'QUERY_STRING'},['forcestudent','register','forceedit']);
1.14 www 91: # ----------------------------------------------------- Force menu registration
92: my $addentries='';
1.40 albertel 93: if ($env{'form.register'}) {
1.14 www 94: $addentries=' onLoad="'.&Apache::lonmenu::loadevents().
95: '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
96: $r->print(&Apache::lonmenu::registerurl(1));
97: }
1.6 www 98: # --------------------------------------------------------------- Force Student
99: my $forcestudent='';
1.40 albertel 100: if ($env{'form.forcestudent'}) { $forcestudent='student'; };
1.27 www 101: my $forceedit='';
1.40 albertel 102: if ($env{'form.forceedit'}) { $forceedit='edit'; }
1.5 www 103:
1.3 www 104: # ------------------------------------- There is such a course, get environment
1.2 www 105: my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
1.28 sakharuk 106: if ($target ne 'tex') {
1.32 www 107: $r->print(&Apache::lonhtmlcommon::htmlareaheaders().
108: '</head>'.&Apache::loncommon::bodytag
1.40 albertel 109: ("Syllabus",$forcestudent,$addentries,'',$cdom,$env{'form.register'}));
1.28 sakharuk 110: $r->print('<h1>'.$courseenv{'description'}.'</h1><h3>'.
111: $Apache::lonnet::domaindescription{$cdom}.'</h3>');
112: } else {
1.29 sakharuk 113: $r->print('\noindent{\large\textbf{'.$courseenv{'description'}.'}}\\\\\\\\\textbf{'.
1.28 sakharuk 114: $Apache::lonnet::domaindescription{$cdom}.'}\\\\');
115: }
1.19 www 116: # -------------------------------------------------------------- Announcements?
1.35 sakharuk 117: if ($target ne 'tex') {
118: $r->print(&Apache::lonannounce::showday(time,2,
1.42 www 119: &Apache::lonannounce::readcalendar($cdom.'_'.$cnum)).
120: '<p>'.&mt('Course Announcement RSS Feed').': '.
1.43 ! www 121: '<a href="'.$feedurl.'"><tt>'.$feedurl.'</tt></a></p>');
1.35 sakharuk 122: } else {
123: $r->print(&Apache::lonxml::xmlparse($r,'tex',
124: &Apache::lonannounce::showday(time,2,
125: &Apache::lonannounce::readcalendar($cdom.'_'.$cnum))));
126: }
1.17 www 127: # -------------------------------------------------------- Get course personnel
128: my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
1.28 sakharuk 129: if ($target ne 'tex') {
130: $r->print('<table border="2">');
131: } else {
1.37 sakharuk 132: $r->print('\begin{tabular}{|p{0.45\textwidth}|p{0.45\textwidth}|}\hline');
1.28 sakharuk 133: }
1.36 sakharuk 134: foreach my $element (sort keys %coursepersonnel) {
1.28 sakharuk 135: if ($target ne 'tex') {
1.36 sakharuk 136: $r->print('<tr><td>'.$element.'</td><td>');
1.28 sakharuk 137: } else {
1.36 sakharuk 138: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$element).' & ');
1.28 sakharuk 139: }
1.36 sakharuk 140: foreach (split(/\,/,$coursepersonnel{$element})) {
1.17 www 141: my ($puname,$pudom)=split(/\:/,$_);
1.28 sakharuk 142: if ($target ne 'tex') {
143: $r->print(' '.&Apache::loncommon::aboutmewrapper(
144: &Apache::loncommon::plainname($puname,
145: $pudom),$puname,$pudom));
146: } else {
147: $r->print(' '.&Apache::loncommon::plainname($puname,
148: $pudom).' ');
149: }
1.17 www 150: }
1.28 sakharuk 151: if ($target ne 'tex') {
152: $r->print('</td></tr>');
153: } else {
154: $r->print('\\\\ \hline');
155: }
156: }
157: if ($target ne 'tex') {
158: $r->print('</table>');
159: } else {
160: $r->print('\end{tabular}\\\\');
1.17 www 161: }
162: # ---------------------------------------------------------- Load syllabus info
1.4 www 163: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
1.5 www 164: my $allowed=0;
1.27 www 165: my $privileged=0;
1.4 www 166:
1.2 www 167: # This handler might be called anonymously ...
168: # ----------------------------------------------------- Only if not public call
1.40 albertel 169: if ($env{'user.environment'}) {
1.1 www 170: # does this user have privileges to post, etc?
1.40 albertel 171: if ($env{'request.course.id'}) {
172: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
1.27 www 173: $privileged=$allowed;
174: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
175: $forcestudent='student';
176: }
1.30 sakharuk 177: if ($forcestudent or $target eq 'tex') { $allowed=0; }
1.2 www 178: }
1.6 www 179: if ($allowed) {
1.12 www 180: $r->print('<p>'.
1.23 www 181: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'</p><p>'.&mt('This syllabus can be publicly viewed at')
182: .' <tt>http://'.
1.10 www 183: $Apache::lonnet::hostname{$homeserver}.$r->uri.'</tt>'.
184: &Apache::loncommon::help_open_topic('Syllabus_ExtLink').'</p>'.
1.27 www 185: '<p><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.
186: &mt('Show Public View').'</font></a>'.
1.10 www 187: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').
188: '</p>');
1.27 www 189: } elsif ($privileged) {
1.28 sakharuk 190: if ($target ne 'tex') {
191: $r->print('<p><a href="'.$r->uri.'?forceedit=1"><font size="+1">'.
192: &mt('Edit').'</font></a>');
193: }
1.6 www 194: }
1.40 albertel 195: if (($allowed) && ($env{'form.storesyl'})) {
1.5 www 196: foreach (keys %syllabusfields) {
1.40 albertel 197: my $field=$env{'form.'.$_};
1.33 www 198: chomp($field);
1.5 www 199: $field=~s/\s+$//s;
1.33 www 200: $field=~s/^\s+//s;
201: $field=~s/\<br\s*\/*\>$//s;
202: $field=&Apache::lonfeedback::clear_out_html($field,1);
1.7 www 203: $syllabus{$_}=$field;
1.9 www 204: if ($_ eq 'lll_includeurl') { # clean up included URLs
205: my $field='';
206: foreach (split(/\n/,$syllabus{$_})) {
207: my $url=$_;
208: # get rid of leading and trailing spaces
209: $url=~s/^\s+//;
210: $url=~s/\s+$//;
211: if ($url=~/^http\:\/\/([^\/]+)\/(.+)$/) {
212: my $remainder=$2;
213: # remove the hostname from internal URLs
214: foreach (keys %Apache::lonnet::hostname) {
215: if ($1=~/$Apache::lonnet::hostname{$_}/i) {
216: $url=$remainder;
217: }
218: }
219: }
220: # norm internal URLs
221: unless ($url=~/^http\:/) {
222: $url=&Apache::lonnet::clutter($url);
223: }
224: # re-assemble field
225: if ($url) {
226: $field.=$url."\n";
227: }
228: }
229: $syllabus{$_}=$field;
230: }
1.5 www 231: }
1.40 albertel 232: $syllabus{'uploaded.domain'}=$env{'user.domain'};
233: $syllabus{'uploaded.name'}=$env{'user.name'};
1.5 www 234: $syllabus{'uploaded.lastmodified'}=time;
235: &Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum);
236: }
1.4 www 237: }
238: # ---------------------------------------------------------------- Get syllabus
1.5 www 239: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
1.8 www 240: my $lastmod=$syllabus{'uploaded.lastmodified'};
1.25 www 241: $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
1.26 albertel 242: my $who = &Apache::loncommon::aboutmewrapper(
243: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
1.7 www 244: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
1.26 albertel 245: $syllabus{'uploaded.domain'});
1.28 sakharuk 246: if ($target ne 'tex') {
247: $r->print('<table><tr><td>'.&mt('Last updated').':</td><td>'.
248: $lastmod.'</td><td>'.&mt('by').' '.$who.
249: '</td></tr></table><p>');
250: } else {
251: $r->print('\\\\ '.&mt('Last updated').': '.$lastmod.' '.&mt('by').'\\\\ '.
252: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
253: $syllabus{'uploaded.domain'}).'\\\\');
254: }
1.5 www 255: if ($allowed) {
1.27 www 256: $r->print('<form method="post">'.
257: '<input type="hidden" name="forceedit" value="edit" />');
1.5 www 258: }
1.33 www 259: my @htmlids=();
1.5 www 260: foreach (sort keys %syllabusfields) {
1.32 www 261: if (($syllabus{$_}=~/\w/) || ($allowed)) {
1.5 www 262: my $message=$syllabus{$_};
1.9 www 263: if ($_ eq 'lll_includeurl') { # this is the "included" field
264: my $urls=$message;
265: $message='';
266: foreach my $filelink (split(/\n/,$urls)) {
267: my $output='';
268: # embed style?
269: my ($curfext)=($filelink=~/\.([^\.]+)$/);
270: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1.12 www 271: if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {
1.9 www 272: # make ssi call and remove everything but the body contents
1.13 www 273: $output=&Apache::lonnet::ssi_body($filelink);
1.9 www 274: } elsif ($embstyle eq 'img') {
275: # embed as an image
276: $output='<img src="'.$filelink.'" />';
277: }
1.34 sakharuk 278: if ($target ne 'tex') {
279: $message.='<p>'.$output.'</p>';
280: } else {
281: $message.=' '.&Apache::lonxml::xmlparse($r,'tex','<p>'.$output.'</p>').' ';
282: }
1.9 www 283: }
284: if ($allowed) {
285: $r->print('<h3>'.$syllabusfields{$_}.
1.10 www 286: &Apache::loncommon::help_open_topic('Syllabus_URLs').'</h3>'.
1.27 www 287: '<p><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.&mt('Show Public View').'</font></a>'.
1.10 www 288: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
1.9 www 289: } else {
290: $r->print($message);
291: }
292: } else {
1.41 albertel 293: &Apache::lonfeedback::newline_to_br(\$message);
1.9 www 294: $message
1.20 www 295: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
1.38 www 296: if ($allowed) {
297: $message=&Apache::lonspeller::markeduptext($message);
298: }
1.9 www 299: $message=&Apache::lontexconvert::msgtexconverted($message);
1.28 sakharuk 300: if ($target ne 'tex') {
301: $r->print('<h3>'.$syllabusfields{$_}.'</h3><blockquote>'.
302: $message.'</blockquote>');
303: } else {
304: $r->print('\\\\\textbf{'.$syllabusfields{$_}.'}\\\\'.
1.31 sakharuk 305: &Apache::lonxml::xmlparse($r,'tex',$message).'\\\\');
1.28 sakharuk 306: }
1.33 www 307: push @htmlids,$_;
1.9 www 308: }
1.5 www 309: if ($allowed) {
1.33 www 310: $r->print(
311: '<br /><textarea cols="80" rows="12" name="'.$_.'" id="'.$_.'">'.
1.5 www 312: $syllabus{$_}.
1.33 www 313: '</textarea> <input type="submit" name="storesyl" value="Store" />');
1.5 www 314: }
315: }
316: }
317: if ($allowed) {
1.32 www 318: $r->print('</form>'.
1.33 www 319: &Apache::lonhtmlcommon::htmlareaselectactive(@htmlids));
1.5 www 320: }
1.28 sakharuk 321: if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
1.4 www 322: } else {
1.36 sakharuk 323: if ($target ne 'tex') {$r->print('<p>');} else {$r->print('\par ');}
324: $r->print('No syllabus information provided.');
325: if ($target ne 'tex') {$r->print('</p>');}
1.1 www 326: }
1.28 sakharuk 327: if ($target ne 'tex') {$r->print('</body></html>');} else {$r->print('\end{document}');}
1.1 www 328: return OK;
329: }
330:
331: 1;
332: __END__
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