Annotation of loncom/interface/lonsyllabus.pm, revision 1.37
1.1 www 1: # The LearningOnline Network
2: # Syllabus
3: #
1.37 ! sakharuk 4: # $Id: lonsyllabus.pm,v 1.36 2004/06/11 16:28:14 sakharuk 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;
1.1 www 40:
41: sub handler {
42: my $r = shift;
1.24 www 43: &Apache::loncommon::content_type($r,'text/html');
1.1 www 44: $r->send_http_header;
45: return OK if $r->header_only;
46:
47: # ------------------------------------------------------------ Print the screen
1.28 sakharuk 48: my $target=$ENV{'form.grade_target'};
49: if ($target ne 'tex') {
50: $r->print(<<ENDDOCUMENT);
1.1 www 51: <html>
52: <head>
53: <title>The LearningOnline Network with CAPA</title>
54: ENDDOCUMENT
1.28 sakharuk 55: } else {
56: $r->print(&Apache::lonprintout::print_latex_header($ENV{'form.latex_type'}));
57: }
1.2 www 58: my (undef,undef,$cdom,$cnum)=split(/\//,$r->uri);
1.3 www 59: # Is this even a course?
1.7 www 60: my $homeserver=&Apache::lonnet::homeserver($cnum,$cdom);
61: if ($homeserver eq 'no_host') {
1.23 www 62: $r->print('</head><body>'.&mt('No syllabus available').'</body></html>');
1.3 www 63: return OK;
64: }
1.5 www 65: # --------------------------------------------------------- The syllabus fields
1.23 www 66: my %syllabusfields=&Apache::lonlocal::texthash(
1.5 www 67: 'aaa_instructorinfo' => 'Instructor Information',
68: 'bbb_description' => 'Course Description',
69: 'ccc_prereq' => 'Prerequisites',
1.7 www 70: 'cdc_classhours' => 'Class Hours',
1.5 www 71: 'ddd_officehours' => 'Office Hours',
72: 'eee_helproom' => 'Helproom Hours',
1.7 www 73: 'efe_projectinfo' => 'Project Information',
1.5 www 74: 'fff_examinfo' => 'Exam Information',
1.7 www 75: 'fgf_deadlines' => 'Deadlines',
1.5 www 76: 'ggg_grading' => 'Grading Information',
1.7 www 77: 'hhh_readings' => 'Readings',
78: 'iii_coursepack' => 'Coursepack',
79: 'jjj_weblinks' => 'Web Links',
1.9 www 80: 'kkk_textbook' => 'Textbook',
81: 'lll_includeurl' => 'URLs To Include in Syllabus');
1.5 www 82:
1.14 www 83: # ------------------------------------------------------------ Get query string
84: &Apache::loncommon::get_unprocessed_cgi
1.27 www 85: ($ENV{'QUERY_STRING'},['forcestudent','register','forceedit']);
1.14 www 86: # ----------------------------------------------------- Force menu registration
87: my $addentries='';
88: if ($ENV{'form.register'}) {
89: $addentries=' onLoad="'.&Apache::lonmenu::loadevents().
90: '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
91: $r->print(&Apache::lonmenu::registerurl(1));
92: }
1.6 www 93: # --------------------------------------------------------------- Force Student
94: my $forcestudent='';
95: if ($ENV{'form.forcestudent'}) { $forcestudent='student'; };
1.27 www 96: my $forceedit='';
97: if ($ENV{'form.forceedit'}) { $forceedit='edit'; }
1.5 www 98:
1.3 www 99: # ------------------------------------- There is such a course, get environment
1.2 www 100: my %courseenv=&Apache::lonnet::dump('environment',$cdom,$cnum);
1.28 sakharuk 101: if ($target ne 'tex') {
1.32 www 102: $r->print(&Apache::lonhtmlcommon::htmlareaheaders().
103: '</head>'.&Apache::loncommon::bodytag
1.28 sakharuk 104: ("Syllabus",$forcestudent,$addentries,'',$cdom,$ENV{'form.register'}));
105: $r->print('<h1>'.$courseenv{'description'}.'</h1><h3>'.
106: $Apache::lonnet::domaindescription{$cdom}.'</h3>');
107: } else {
1.29 sakharuk 108: $r->print('\noindent{\large\textbf{'.$courseenv{'description'}.'}}\\\\\\\\\textbf{'.
1.28 sakharuk 109: $Apache::lonnet::domaindescription{$cdom}.'}\\\\');
110: }
1.19 www 111: # -------------------------------------------------------------- Announcements?
1.35 sakharuk 112: if ($target ne 'tex') {
113: $r->print(&Apache::lonannounce::showday(time,2,
1.19 www 114: &Apache::lonannounce::readcalendar($cdom.'_'.$cnum)));
1.35 sakharuk 115: } else {
116: $r->print(&Apache::lonxml::xmlparse($r,'tex',
117: &Apache::lonannounce::showday(time,2,
118: &Apache::lonannounce::readcalendar($cdom.'_'.$cnum))));
119: }
1.17 www 120: # -------------------------------------------------------- Get course personnel
121: my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
1.28 sakharuk 122: if ($target ne 'tex') {
123: $r->print('<table border="2">');
124: } else {
1.37 ! sakharuk 125: $r->print('\begin{tabular}{|p{0.45\textwidth}|p{0.45\textwidth}|}\hline');
1.28 sakharuk 126: }
1.36 sakharuk 127: foreach my $element (sort keys %coursepersonnel) {
1.28 sakharuk 128: if ($target ne 'tex') {
1.36 sakharuk 129: $r->print('<tr><td>'.$element.'</td><td>');
1.28 sakharuk 130: } else {
1.36 sakharuk 131: $r->print(' '.&Apache::lonxml::xmlparse($r,'tex',$element).' & ');
1.28 sakharuk 132: }
1.36 sakharuk 133: foreach (split(/\,/,$coursepersonnel{$element})) {
1.17 www 134: my ($puname,$pudom)=split(/\:/,$_);
1.28 sakharuk 135: if ($target ne 'tex') {
136: $r->print(' '.&Apache::loncommon::aboutmewrapper(
137: &Apache::loncommon::plainname($puname,
138: $pudom),$puname,$pudom));
139: } else {
140: $r->print(' '.&Apache::loncommon::plainname($puname,
141: $pudom).' ');
142: }
1.17 www 143: }
1.28 sakharuk 144: if ($target ne 'tex') {
145: $r->print('</td></tr>');
146: } else {
147: $r->print('\\\\ \hline');
148: }
149: }
150: if ($target ne 'tex') {
151: $r->print('</table>');
152: } else {
153: $r->print('\end{tabular}\\\\');
1.17 www 154: }
155: # ---------------------------------------------------------- Load syllabus info
1.4 www 156: my %syllabus=&Apache::lonnet::dump('syllabus',$cdom,$cnum);
1.5 www 157: my $allowed=0;
1.27 www 158: my $privileged=0;
1.4 www 159:
1.2 www 160: # This handler might be called anonymously ...
161: # ----------------------------------------------------- Only if not public call
162: if ($ENV{'user.environment'}) {
1.1 www 163: # does this user have privileges to post, etc?
1.2 www 164: if ($ENV{'request.course.id'}) {
1.22 www 165: $allowed=&Apache::lonnet::allowed('mdc',$ENV{'request.course.id'});
1.27 www 166: $privileged=$allowed;
167: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
168: $forcestudent='student';
169: }
1.30 sakharuk 170: if ($forcestudent or $target eq 'tex') { $allowed=0; }
1.2 www 171: }
1.6 www 172: if ($allowed) {
1.12 www 173: $r->print('<p>'.
1.23 www 174: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'</p><p>'.&mt('This syllabus can be publicly viewed at')
175: .' <tt>http://'.
1.10 www 176: $Apache::lonnet::hostname{$homeserver}.$r->uri.'</tt>'.
177: &Apache::loncommon::help_open_topic('Syllabus_ExtLink').'</p>'.
1.27 www 178: '<p><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.
179: &mt('Show Public View').'</font></a>'.
1.10 www 180: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').
181: '</p>');
1.27 www 182: } elsif ($privileged) {
1.28 sakharuk 183: if ($target ne 'tex') {
184: $r->print('<p><a href="'.$r->uri.'?forceedit=1"><font size="+1">'.
185: &mt('Edit').'</font></a>');
186: }
1.6 www 187: }
1.5 www 188: if (($allowed) && ($ENV{'form.storesyl'})) {
189: foreach (keys %syllabusfields) {
190: my $field=$ENV{'form.'.$_};
1.33 www 191: chomp($field);
1.5 www 192: $field=~s/\s+$//s;
1.33 www 193: $field=~s/^\s+//s;
194: $field=~s/\<br\s*\/*\>$//s;
195: $field=&Apache::lonfeedback::clear_out_html($field,1);
1.7 www 196: $syllabus{$_}=$field;
1.9 www 197: if ($_ eq 'lll_includeurl') { # clean up included URLs
198: my $field='';
199: foreach (split(/\n/,$syllabus{$_})) {
200: my $url=$_;
201: # get rid of leading and trailing spaces
202: $url=~s/^\s+//;
203: $url=~s/\s+$//;
204: if ($url=~/^http\:\/\/([^\/]+)\/(.+)$/) {
205: my $remainder=$2;
206: # remove the hostname from internal URLs
207: foreach (keys %Apache::lonnet::hostname) {
208: if ($1=~/$Apache::lonnet::hostname{$_}/i) {
209: $url=$remainder;
210: }
211: }
212: }
213: # norm internal URLs
214: unless ($url=~/^http\:/) {
215: $url=&Apache::lonnet::clutter($url);
216: }
217: # re-assemble field
218: if ($url) {
219: $field.=$url."\n";
220: }
221: }
222: $syllabus{$_}=$field;
223: }
1.5 www 224: }
225: $syllabus{'uploaded.domain'}=$ENV{'user.domain'};
226: $syllabus{'uploaded.name'}=$ENV{'user.name'};
227: $syllabus{'uploaded.lastmodified'}=time;
228: &Apache::lonnet::put('syllabus',\%syllabus,$cdom,$cnum);
229: }
1.4 www 230: }
231: # ---------------------------------------------------------------- Get syllabus
1.5 www 232: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
1.8 www 233: my $lastmod=$syllabus{'uploaded.lastmodified'};
1.25 www 234: $lastmod=($lastmod?&Apache::lonlocal::locallocaltime($lastmod):&mt('never'));
1.26 albertel 235: my $who = &Apache::loncommon::aboutmewrapper(
236: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
1.7 www 237: $syllabus{'uploaded.domain'}),$syllabus{'uploaded.name'},
1.26 albertel 238: $syllabus{'uploaded.domain'});
1.28 sakharuk 239: if ($target ne 'tex') {
240: $r->print('<table><tr><td>'.&mt('Last updated').':</td><td>'.
241: $lastmod.'</td><td>'.&mt('by').' '.$who.
242: '</td></tr></table><p>');
243: } else {
244: $r->print('\\\\ '.&mt('Last updated').': '.$lastmod.' '.&mt('by').'\\\\ '.
245: &Apache::loncommon::plainname($syllabus{'uploaded.name'},
246: $syllabus{'uploaded.domain'}).'\\\\');
247: }
1.5 www 248: if ($allowed) {
1.27 www 249: $r->print('<form method="post">'.
250: '<input type="hidden" name="forceedit" value="edit" />');
1.5 www 251: }
1.33 www 252: my @htmlids=();
1.5 www 253: foreach (sort keys %syllabusfields) {
1.32 www 254: if (($syllabus{$_}=~/\w/) || ($allowed)) {
1.5 www 255: my $message=$syllabus{$_};
1.9 www 256: if ($_ eq 'lll_includeurl') { # this is the "included" field
257: my $urls=$message;
258: $message='';
259: foreach my $filelink (split(/\n/,$urls)) {
260: my $output='';
261: # embed style?
262: my ($curfext)=($filelink=~/\.([^\.]+)$/);
263: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1.12 www 264: if (($embstyle eq 'ssi') || ($curfext=~/\/$/)) {
1.9 www 265: # make ssi call and remove everything but the body contents
1.13 www 266: $output=&Apache::lonnet::ssi_body($filelink);
1.9 www 267: } elsif ($embstyle eq 'img') {
268: # embed as an image
269: $output='<img src="'.$filelink.'" />';
270: }
1.34 sakharuk 271: if ($target ne 'tex') {
272: $message.='<p>'.$output.'</p>';
273: } else {
274: $message.=' '.&Apache::lonxml::xmlparse($r,'tex','<p>'.$output.'</p>').' ';
275: }
1.9 www 276: }
277: if ($allowed) {
278: $r->print('<h3>'.$syllabusfields{$_}.
1.10 www 279: &Apache::loncommon::help_open_topic('Syllabus_URLs').'</h3>'.
1.27 www 280: '<p><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.&mt('Show Public View').'</font></a>'.
1.10 www 281: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
1.9 www 282: } else {
283: $r->print($message);
284: }
285: } else {
286: $message=~s/\n/\<br \/\>/g;
287: $message
1.20 www 288: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
1.9 www 289: $message=&Apache::lontexconvert::msgtexconverted($message);
1.28 sakharuk 290: if ($target ne 'tex') {
291: $r->print('<h3>'.$syllabusfields{$_}.'</h3><blockquote>'.
292: $message.'</blockquote>');
293: } else {
294: $r->print('\\\\\textbf{'.$syllabusfields{$_}.'}\\\\'.
1.31 sakharuk 295: &Apache::lonxml::xmlparse($r,'tex',$message).'\\\\');
1.28 sakharuk 296: }
1.33 www 297: push @htmlids,$_;
1.9 www 298: }
1.5 www 299: if ($allowed) {
1.33 www 300: $r->print(
301: '<br /><textarea cols="80" rows="12" name="'.$_.'" id="'.$_.'">'.
1.5 www 302: $syllabus{$_}.
1.33 www 303: '</textarea> <input type="submit" name="storesyl" value="Store" />');
1.5 www 304: }
305: }
306: }
307: if ($allowed) {
1.32 www 308: $r->print('</form>'.
1.33 www 309: &Apache::lonhtmlcommon::htmlareaselectactive(@htmlids));
1.5 www 310: }
1.28 sakharuk 311: if ($target ne 'tex') {$r->print('</p>');} else {$r->print('\\\\');}
1.4 www 312: } else {
1.36 sakharuk 313: if ($target ne 'tex') {$r->print('<p>');} else {$r->print('\par ');}
314: $r->print('No syllabus information provided.');
315: if ($target ne 'tex') {$r->print('</p>');}
1.1 www 316: }
1.28 sakharuk 317: if ($target ne 'tex') {$r->print('</body></html>');} else {$r->print('\end{document}');}
1.1 www 318: return OK;
319: }
320:
321: 1;
322: __END__
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