1: # The LearningOnline Network
2: # Simple Page Editor
3: #
4: # $Id: lonsimplepage.pm,v 1.41 2006/05/18 17:12:58 albertel 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::lonsimplepage;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::loncommon;
34: use Apache::lonnet;
35: use Apache::lontexconvert;
36: use Apache::lonfeedback;
37: use Apache::lonlocal;
38: use Apache::lonprintout;
39: use Apache::lonxml;
40: use Apache::longroup;
41:
42: sub handler {
43: my $r = shift;
44: &Apache::loncommon::content_type($r,'text/html');
45: $r->send_http_header;
46: return OK if $r->header_only;
47: my $target=$env{'form.grade_target'};
48: # ------------------------------------------------------------ Print the screen
49: if ($target eq 'tex') {
50: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
51: }
52: my (undef,undef,undef,undef,$marker,$caller)=split(/\//,$r->uri);
53: # Is this even in a course?
54: unless ($env{'request.course.id'}) {
55: if ($target ne 'tex') {
56: &Apache::loncommon::simple_error_page($r,'','Not in a course');
57: } else {
58: $r->print('\textbf{Not in a course}\end{document}');
59: }
60: return OK;
61: }
62:
63: my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
64: my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
65: my $grp_view_permission = &Apache::lonnet::allowed('vcg',
66: $env{'request.course.id'});
67: my $namespace;
68:
69: my %curr_group = ();
70: my %groupinfo = ();
71: if ($caller eq 'grppg') {
72: $marker =~ s/\W//g;
73: $namespace = 'grppage_'.$marker;
74: my %curr_groups = &Apache::longroup::coursegroups($dom,$crs,$marker);
75: if (!%curr_groups) {
76: &Apache::loncommon::simple_error_page($r,'','Invalid group name');
77: return OK;
78: }
79: %groupinfo =
80: &Apache::longroup::get_group_settings($curr_groups{$marker});
81: } else {
82: $marker=~s/\D//g;
83: $namespace = 'smppage_'.$marker;
84: }
85:
86: if (!$marker) {
87: &Apache::loncommon::simple_error_page($r,'','Invalid call');
88: return OK;
89: }
90:
91: # --------------------------------------------------------- The syllabus fields
92: my %syllabusfields=&Apache::lonlocal::texthash(
93: 'aaa_title' => 'Page Title',
94: 'bbb_content' => 'Content',
95: 'ccc_webreferences' => 'Web References');
96: if ($caller eq 'grppg') {
97: $syllabusfields{'abb_links'} = &mt('Functionality');
98: }
99:
100:
101: # ------------------------------------------------------------ Get query string
102: &Apache::loncommon::get_unprocessed_cgi
103: ($ENV{'QUERY_STRING'},['forcestudent','forceedit','register']);
104: # --------------------------------------------------------------- Force Student
105: my $forcestudent='';
106: if ($env{'form.forcestudent'} || $target eq 'tex' ) { $forcestudent='student'; };
107: my $forceedit='';
108: if ($env{'form.forceedit'}) { $forceedit='edit'; }
109:
110:
111: my %syllabus=&Apache::lonnet::dump($namespace,$dom,$crs);
112:
113: # --------------------------------------- There is such a user, get environment
114:
115: if ($target ne 'tex') {
116: my $title = 'Course Page';
117: if ($caller eq 'grppg') {
118: $title = 'Group Page';
119: }
120: my $start_page =
121: &Apache::loncommon::start_page($title,undef,
122: {'function' => $forcestudent,
123: 'domain' => $dom,
124: 'force_register' =>
125: $env{'form.register'},});
126: $r->print($start_page);
127: }
128:
129: if ($caller eq 'grppg') {
130: if (($grp_view_permission) ||
131: (&Apache::longroup::check_group_access($caller))) {
132: unless(&Apache::lonnet::allowed('vgh',
133: $env{'request.course.id'}.'/'.$marker)) {
134: &display_group_links($r,$target,$marker,'view',%groupinfo);
135: return OK;
136: }
137: } else {
138: my $msg =
139: &mt('You do not currently have rights to view this group.');
140: if ($target ne 'tex') {
141: $r->print("<p>$msg</p>".
142: &Apache::loncommon::end_page());
143: } else {
144: $r->print('\textbf{'.$msg.'}\end{document}');
145: }
146: return OK;
147: }
148: }
149:
150: my $allowed;
151: if ($caller eq 'grppg') {
152: $allowed = $grp_view_permission;
153: unless ($allowed) {
154: $allowed = &Apache::lonnet::allowed('mgh',$env{'request.course.id'}.
155: '/'.$marker);
156: }
157: } else {
158: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
159: }
160: my $privileged=$allowed;
161: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) {
162: $forcestudent='student';
163: }
164:
165: if ($forcestudent or $target eq 'tex') { $allowed=0; }
166:
167: if ($allowed) {
168: $r->print('<p>'.
169: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'<br /><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.&mt('Show Student View').'</font></a>'.
170: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>');
171: } elsif ($privileged and $target ne 'tex') {
172: $r->print('<a href="'.$r->uri.'?forceedit=edit"><font size="+1">'.&mt('Edit').'</font></a>');
173: }
174: if (($env{'form.uploaddoc.filename'} and $target ne 'tex') &&
175: ($env{'form.storeupl'}) && ($allowed)) {
176: if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
177: if ($syllabus{'uploaded.photourl'}) {
178: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
179: }
180: if ($caller eq 'grppage') {
181: $syllabus{'uploaded.photourl'}=&Apache::lonnet::userfileupload(
182: 'uploaddoc',1,"grouppage/$marker");
183: } else {
184: $syllabus{'uploaded.photourl'}=
185: &Apache::lonnet::userfileupload('uploaddoc',1,'simplepage');
186: }
187: }
188: $syllabus{'uploaded.lastmodified'}=time;
189: &Apache::lonnet::put($namespace,\%syllabus,$dom,$crs);
190: }
191: if (($allowed) && ($env{'form.storesyl'})) {
192: foreach (keys %syllabusfields) {
193: my $field=$env{'form.'.$_};
194: chomp($field);
195: $field=~s/\s+$//s;
196: $field=~s/^\s+//s;
197: $field=~s/\<br\s*\/*\>$//s;
198: $field=&Apache::lonfeedback::clear_out_html($field,1);
199: $syllabus{$_}=$field;
200: }
201: $syllabus{'uploaded.lastmodified'}=time;
202: &Apache::lonnet::put($namespace,\%syllabus,$dom,$crs);
203: }
204:
205: # ---------------------------------------------------------------- Get syllabus
206: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) {
207: if ($syllabus{'uploaded.photourl'}) {
208: &Apache::lonnet::allowuploaded('/adm/'.$caller,
209: $syllabus{'uploaded.photourl'});
210:
211: my $image='<img src="'.$syllabus{'uploaded.photourl'}.'"
212: align="right" />';
213: if ($target eq 'tex') {
214: $image=&Apache::lonxml::xmlparse($r,'tex',$image);
215: }
216: $r->print($image);
217: }
218: if ($allowed) {
219: $r->print(
220: '<form method="post" enctype="multipart/form-data">'.
221: '<input type="hidden" name="forceedit" value="edit" />'.
222: '<h3>Upload a Photo</h3>'.
223: '<input type="file" name="uploaddoc" size="50">'.
224: '<input type="submit" name="storeupl" value="Upload">'.
225: '</form><form method="post">');
226: }
227: foreach (sort keys %syllabusfields) {
228: if (($syllabus{$_}) || ($allowed)) {
229: my $message=$syllabus{$_};
230: &Apache::lonfeedback::newline_to_br(\$message);
231: $message
232: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g;
233: if ($allowed) {
234: $message=&Apache::lonspeller::markeduptext($message);
235: }
236: $message=&Apache::lontexconvert::msgtexconverted($message);
237: if ($_ eq 'abb_links' && $caller eq 'grppg') {
238: $r->print('<br /><input type="hidden" name="'.$_.
239: '" value="'.$syllabus{$_}.'" />');
240: &display_group_links($r,$target,$marker,'edit',%groupinfo);
241: $r->print('<br />');
242: } elsif ($_ eq 'aaa_title') {
243: if ($target ne 'tex') {
244: $r->print('<h1>'.$message.'</h1>');
245: } else {
246: my $safeinit;
247: $r->print(&Apache::lonxml::xmlparse($r,'tex','<h1>'.$message.'</h1>'));
248: }
249: if ($allowed) {
250: if ($env{'form.grade_target'} ne 'tex') {
251: $r->print(
252: '<br />Title<br /><textarea cols="80" rows="2" name="'.$_.'">'.
253: $syllabus{$_}.
254: '</textarea><input type="submit" name="storesyl" value="Store" />');
255: } else {
256: my $safeinit;
257: $r->print(&Apache::lonxml::xmlparse($r,'tex',$syllabus{$_},$safeinit));
258: }
259: }
260: } else {
261: if (($_ ne 'bbb_content') || ($allowed)) {
262: if ($target ne 'tex') {
263: $r->print('<h3>'.$syllabusfields{$_}.'</h3>');
264: } else {
265: my $safeinit;
266: $r->print(&Apache::lonxml::xmlparse($r,'tex','<h3>'.$syllabusfields{$_}.'</h3>'));
267: }
268: }
269: if ($target ne 'tex') {
270: $r->print('<blockquote>'.
271: $message.'</blockquote>');
272: } else {
273: my $safeinit;
274: $r->print(&Apache::lonxml::xmlparse($r,'tex',$message));
275: }
276: if ($allowed) {
277: if ($target ne 'tex') {
278: $r->print('<br /><textarea cols="80" rows="24" name="'.$_.'" id="'.$_.'">'.
279: $syllabus{$_}.
280: '</textarea><input type="submit" name="storesyl" value="Store" />');
281: } else {
282: my $safeinit;
283: $r->print(&Apache::lonxml::xmlparse($r,'tex',$syllabus{$_},$safeinit));
284: }
285: }
286: }
287: }
288: }
289: if ($allowed && ($env{'form.grade_target'} ne 'tex')) {
290: $r->print(&Apache::lonhtmlcommon::htmlareaselectactive
291: ('bbb_content').'</form>');
292: }
293: if ($env{'form.grade_target'} ne 'tex') {$r->print('</p>');}
294: } else {
295: $r->print('<p>No page information provided.</p>');
296: }
297: if ($env{'form.grade_target'} ne 'tex') {
298: $r->print(&Apache::loncommon::end_page());
299: } else {
300: $r->print('\end{document}');
301: }
302: return OK;
303: }
304:
305: sub display_group_links {
306: my ($r,$target,$marker,$context,%groupinfo) = @_;
307: my @available = ();
308: my %menu = ();
309: %{$menu{'email'}} = (
310: text => 'Group e-mail',
311: href => '/adm/email?compose=group&group='.$marker,
312: );
313: %{$menu{'discussion'}} = (
314: text => 'Discussion Boards',
315: href => '/adm/groupboards?group='.$marker,
316: );
317: %{$menu{'chat'}} = (
318: text => 'Group chat',
319: href => "javascript:group_chat('$marker')",
320: );
321: %{$menu{'files'}} = (
322: text => 'File repository',
323: href => '/adm/coursegrp_portfolio?group='.$marker,
324: );
325: %{$menu{'roster'}} = (
326: text => 'Membership roster',
327: href => '/adm/grouproster?group='.$marker,
328: );
329: foreach my $tool (sort(keys(%menu))) {
330: if ($groupinfo{functions}{$tool} eq 'on') {
331: push(@available,$tool);
332: }
333: }
334: if (@available > 0) {
335: my $output = '<table cellspacing="4" cellpadding="4"><tr>';
336: foreach my $tool (@available) {
337: if ($target eq 'tex') {
338: $output .= '<td>'.$menu{$tool}{text}.'</td>';
339: } else {
340: $output .= '<td><a href="'.$menu{$tool}{href}.'">'.
341: $menu{$tool}{text}.'</a></td>';
342: }
343: }
344: $output .= '</tr></table>';
345: if ($target eq 'tex') {
346: $r->print(&Apache::lonxml::xmlparse($r,'tex','Available functions<br /><br />'.$output));
347: } else {
348: $r->print('<h3>Functions</h3>'.$output);
349: }
350: } else {
351: my $output;
352: if ($context eq 'edit') {
353: $output = 'No group functionality';
354: } else {
355: $output = 'No group functionality (e.g., e-mail, discussion, chat or file upload) is currently available to you in this group: '.$marker;
356: }
357: if ($target eq 'tex') {
358: $r->print(&Apache::lonxml::xmlparse($r,'tex',$output));
359: } else {
360: $r->print($output);
361: }
362: }
363: }
364:
365:
366: 1;
367: __END__
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