1: # The LearningOnline Network
2: # Simple Page Editor
3: #
4: # $Id: lonsimplepage.pm,v 1.106 2020/09/09 18:37:00 raeburn 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::lontemplate;
35: use Apache::lonnet;
36: use Apache::lonhtmlgateway;
37: use Apache::lonlocal;
38: use Apache::lonprintout;
39: use Apache::lonxml;
40: use Apache::longroup;
41: use Apache::lonnavmaps();
42: use HTML::Entities();
43: use LONCAPA;
44:
45: sub get_db_name {
46: my ($url,$marker,$cdom,$cnum) = @_;
47: my ($udom,$uname,$timemark)=(split(m{/},$url))[2,3,4];
48: if ($marker eq '') {
49: $marker = $timemark;
50: }
51: if (($cdom eq '') || ($cnum eq '')) {
52: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
53: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
54: }
55: my $db_name;
56:
57: if ($cdom && $cnum && ($udom eq $cdom) && ($uname eq $cnum)) {
58: $marker =~ s/\W//g;
59: $db_name = 'grppage_'.$marker;
60: } else {
61: $marker=~s/\D//g;
62: $db_name = 'smppage_'.$marker;
63: }
64: return if (!defined($marker));
65: return $db_name;
66: }
67:
68: sub handler {
69: my $r = shift;
70: &Apache::loncommon::content_type($r,'text/html');
71: $r->send_http_header;
72: return OK if $r->header_only;
73: my $target=$env{'form.grade_target'};
74: # ------------------------------------------------------------ Print the screen
75: if ($target eq 'tex') {
76: $r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
77: }
78:
79: # Is this even in a course?
80: unless ($env{'request.course.id'}) {
81: if ($target ne 'tex') {
82: &Apache::loncommon::simple_error_page($r,'','Not in a course');
83: } else {
84: $r->print('\textbf{Not in a course}\end{document}');
85: }
86: return OK;
87: }
88:
89: my $marker = (split(m{/},$r->uri))[4];
90: my $db_name = &get_db_name($r->uri,$marker);
91:
92: my $dom = $env{'course.'.$env{'request.course.id'}.'.domain'};
93: my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
94: my ($group,$group_desc);
95:
96: my %curr_group = ();
97: my %groupinfo = ();
98: if ($db_name =~ /^grppage_/) {
99: $group = $marker;
100: $group =~ s/\W//g;
101: my %curr_groups = &Apache::longroup::coursegroups($dom,$crs,$group);
102: if (!%curr_groups) {
103: &Apache::loncommon::simple_error_page($r,'','Invalid group name');
104: return OK;
105: }
106: %groupinfo =
107: &Apache::longroup::get_group_settings($curr_groups{$group});
108: $group_desc = &unescape($groupinfo{'description'});
109: }
110:
111: if (!$db_name) {
112: &Apache::loncommon::simple_error_page($r,'','Invalid call');
113: return OK;
114: }
115:
116: # --------------------------------------------------------- The syllabus fields
117: my %syllabusfields=&Apache::lonlocal::texthash(
118: 'aaa_title' => 'Page Title',
119: 'bbb_content' => ($target eq 'tex'?'':'Content'),
120: 'ccc_webreferences' => 'Web References');
121: if ($group ne '') {
122: $syllabusfields{'abb_links'} = &mt('Available Group Tools');
123: }
124:
125:
126: # ------------------------------------------------------------ Get query string
127: &Apache::loncommon::get_unprocessed_cgi
128: ($ENV{'QUERY_STRING'},['forceedit','todocs',
129: 'register','ref']);
130: # --------------------------------------------------------------- Force Student
131: my ($forceedit,$forcestudent);
132: $forceedit = $env{'form.forceedit'};
133: if (!$forceedit) {
134: $forcestudent=1;
135: }
136:
137: my $refarg;
138: if ($env{'form.ref'}) {
139: $refarg = '&ref='.$env{'form.ref'};
140: }
141:
142: my %syllabus=&Apache::lonnet::dump($db_name,$dom,$crs);
143:
144: # --------------------------------------- There is such a user, get environment
145: my ($registered,$group_view_perm,$group_edit_perm,$group_home_view,
146: $group_home_edit,$has_group_access);
147: my $brcrum = [];
148: if ($group eq '') {
149: $registered = $env{'form.register'};
150: } else {
151: unless ($env{'form.ref'} eq 'grouplist') {
152: $registered = $env{'form.register'};
153: }
154: $group_view_perm =
155: &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.
156: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
157: $group_edit_perm =
158: &Apache::lonnet::allowed('mdg',$env{'request.course.id'}.
159: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
160: $group_home_view = &Apache::lonnet::allowed('vgh',
161: $env{'request.course.id'}.'/'.$group);
162: $group_home_edit = &Apache::lonnet::allowed('mgh',
163: $env{'request.course.id'}.'/'.$group);
164: if ($group_view_perm || $group_edit_perm || $group_home_view ||
165: $group_home_edit || &Apache::longroup::check_group_access($group)) {
166: $has_group_access = 1;
167: if (($env{'form.ref'} eq 'grouplist') && ($target ne 'tex') &&
168: (!$registered)) {
169: $brcrum = &grouppage_breadcrumbs($dom,$crs,$group,$group_desc);
170: }
171: }
172: }
173:
174: if ($target ne 'tex') {
175: my $title = ($group eq '')? 'Simple Course Page':'Simple Group Page';
176: my $start_page =
177: &Apache::loncommon::start_page($title,undef,
178: {'domain' => $dom,
179: 'group' => $group,
180: 'bread_crumbs' => $brcrum,
181: 'force_register' => $registered,
182: });
183: $r->print($start_page);
184: }
185:
186: if ($group ne '') {
187: if ($has_group_access) {
188: if ((!$group_home_edit) && (!$group_home_view) &&
189: (!$group_view_perm) && (!$group_edit_perm)) {
190: $r->print(&Apache::longroup::display_group_links($r,$env{'form.grade_target'},$group,
191: 'view',$refarg,undef,undef,%groupinfo));
192: if ($env{'form.grade_target'} ne 'tex') {
193: $r->print(&Apache::loncommon::end_page());
194: } else {
195: $r->print('\end{document}');
196: }
197: return OK;
198: }
199: } else {
200: my $msg =
201: &mt('You do not currently have rights to view this group.');
202: if ($target ne 'tex') {
203: $r->print('<p class="LC_warning">'.$msg.'</p>'.
204: &Apache::loncommon::end_page());
205: } else {
206: $r->print('\textbf{'.$msg.'}\end{document}');
207: }
208: return OK;
209: }
210: my ($blocked,$blocktext) =
211: &Apache::loncommon::blocking_status('groups');
212: if ($blocked) {
213: $r->print($blocktext);
214: $r->print(&Apache::loncommon::end_page());
215: return OK;
216: }
217: }
218:
219: my $allowed;
220:
221: if ($group ne '') {
222: $allowed = $group_edit_perm;
223: if (!$allowed) {
224: $allowed = $group_home_edit;
225: }
226: } else {
227: $allowed=&Apache::lonnet::allowed('mdc',$env{'request.course.id'});
228: }
229:
230: if ($forcestudent or $target eq 'tex') { $allowed=0; }
231:
232: if (($env{'form.uploaddoc.filename'} and $target ne 'tex') &&
233: ($env{'form.storeupl'}) && ($allowed)) {
234: if ($env{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) {
235: if ($syllabus{'uploaded.photourl'}) {
236: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
237: }
238: if ($group ne '') {
239: $syllabus{'uploaded.photourl'}=&Apache::lonnet::userfileupload(
240: 'uploaddoc','coursedoc',
241: "grouppage/$group");
242: } else {
243: $syllabus{'uploaded.photourl'}=
244: &Apache::lonnet::userfileupload('uploaddoc','coursedoc',
245: "simplepage/$marker");
246: }
247: }
248: $syllabus{'uploaded.lastmodified'}=time;
249: &Apache::lonnet::put($db_name,\%syllabus,$dom,$crs);
250: }
251: # if ($allowed && $env{'form.delupl'}) {
252: # if ($syllabus{'uploaded.photourl'}) {
253: # &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'});
254: # delete($syllabus{'uploaded.photourl'});
255: # &Apache::lonnet::del('simplepage',['uploaded.photourl']);
256: # }
257: # }
258: if (($allowed) && ($env{'form.storesyl'})) {
259: foreach my $syl_field (keys(%syllabusfields)) {
260: my $field=$env{'form.'.$syl_field};
261: chomp($field);
262: my $gateway = Apache::lonhtmlgateway->new();
263: $field = $gateway->process_incoming_html($field,1);
264: $syllabus{$syl_field}=$field;
265: }
266: $syllabus{'uploaded.lastmodified'}=time;
267: &Apache::lonnet::put($db_name,\%syllabus,$dom,$crs);
268: }
269:
270: #---Print help Text
271: if($target ne 'tex'){
272: if ($allowed) {
273: $r->print(&Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes',&mt('Help with filling in text boxes')));
274: }
275: }
276:
277: # ---------------------------------------------------------------- Get syllabus
278: if ((($syllabus{'uploaded.lastmodified'}) &&
279: (($group ne '' && ($group_home_view || $group_edit_perm ||
280: $group_view_perm)) || ($group eq ''))) || ($allowed)) {
281: #Print the title
282: my $titletext=&HTML::Entities::encode($syllabus{'aaa_title'},'<>&"');
283: if ($target ne 'tex') {
284: if ($allowed) {
285: }
286: $r->print('<h2>'.$titletext.'</h2>');
287: } else {
288: my $safeinit;
289: $r->print(&Apache::lonxml::xmlparse($r,'tex','<h1>'.$titletext.'</h1>'));
290: }
291: if ($allowed) {
292: if ($env{'form.grade_target'} ne 'tex') {
293: #editbox for title
294: $r->print('<form method="post" action="" enctype="multipart/form-data">'."\n".
295: '<input type="hidden" register="'.$registered.'" />');
296: &Apache::lontemplate::print_start_template($r,&mt('Title'),'LC_Box');
297: $r->print($titletext);
298: $r->print("<br /><div>");
299: &Apache::lontemplate::print_textarea_template($r, $syllabus{'aaa_title'},
300: 'aaa_title', Apache::lontemplate->RICH_TEXT_ALWAYS_OFF);
301: &Apache::lontemplate::print_saveall_template($r);
302: $r->print("</div>");
303: &Apache::lontemplate::print_end_template($r);
304: } else {
305: my $safeinit;
306: $r->print(&Apache::lonxml::xmlparse($r,'tex',$syllabus{'aaa_title'},$safeinit));
307: }
308: }
309:
310: #print the image
311: my $image='';
312: if ($syllabus{'uploaded.photourl'}) {
313: &Apache::lonnet::allowuploaded('/adm/smppg',
314: $syllabus{'uploaded.photourl'});
315:
316: $image='<img src="'.$syllabus{'uploaded.photourl'}
317: .'" alt="'.&mt('Image').'" />';
318: if ($target eq 'tex') {
319: $image=&Apache::lonxml::xmlparse($r,'tex',$image);
320: }
321: }
322:
323: if ($allowed) {
324: &Apache::lontemplate::print_start_template($r, &mt('Upload a Photo'),'LC_Box');
325: $r->print($image);
326: $r->print("<br /><br />");
327: $r->print(
328: '<input type="hidden" name="forceedit" value="edit" />'.
329: '<input type="file" name="uploaddoc" size="50" />'.
330: '<input type="submit" name="storeupl" value="'.&mt('Upload').'" />'.
331: '<input type="hidden" name="forceedit" value="edit" />');
332: &Apache::lontemplate::print_end_template($r);
333:
334:
335: # if ($syllabus{'uploaded.photourl'}) {
336: # $r->print('<input type="submit" name="delupl"'
337: # .' value="'.&mt('Delete Photo').'" />');
338: # }
339: }
340: #Image in Student view and printout.
341: else {
342: $r->print($image);
343: }
344:
345: my $links_handler = sub {
346: my ($r, $field, $message, $group, $data_ref, $fields_ref, $target, $allowed) = @_;
347: if ($group ne '') {
348: my %data = %{$data_ref};
349: my %fields = %{$fields_ref};
350: $r->print('<br /><input type="hidden" name="'.$field.
351: '" value="'.$data{$field}.'" />');
352: $r->print(&Apache::longroup::display_group_links($r,$target,$group,'edit',
353: $refarg,undef,undef,%groupinfo));
354: $r->print('<br />');
355: }
356: };
357: my $title_handler = sub {};
358: my %custom_handlers = (
359: 'abb_links' => $links_handler,
360: 'aaa_title' => $title_handler
361: );
362: &Apache::lontemplate::print_template_fields($r, \%syllabus, \%syllabusfields,
363: $target, $allowed, Apache::lontemplate->RICH_TEXT_DETECT_HTML, \%custom_handlers, $group);
364:
365: if ($allowed && ($env{'form.grade_target'} ne 'tex')) {
366: $r->print(&Apache::lonhtmlcommon::htmlareaselectactive().
367: '</form>');
368: }
369:
370: } else {
371: if ($group ne '') {
372: $r->print(&Apache::longroup::display_group_links($r,$target,$group,'view',$refarg,undef,undef,%groupinfo));
373: } else {
374: my $text=&mt('No page information provided.');
375: if ($target ne 'tex') {
376: $r->print('<p class="LC_info">'.$text.'</p>');
377: } else {
378: $r->print($text)
379: }
380: }
381: }
382: if ($env{'form.grade_target'} ne 'tex') {
383: $r->print(&Apache::loncommon::end_page());
384: } else {
385: $r->print('\end{document}');
386: }
387: return OK;
388: }
389:
390: sub grouppage_breadcrumbs {
391: my ($cdom,$cnum,$group,$description) = @_;
392: &Apache::lonhtmlcommon::clear_breadcrumbs();
393: return [{href=>"/adm/coursegroups",
394: text=>"Groups",
395: title=>"Display Groups"},
396: {href=>"/adm/$cdom/$cnum/$group/smppg?ref=grouplist",
397: text=>&mt('Group').": $description",
398: title=>&mt("Go to group's home page"),
399: no_mt=>1},
400: ];
401: }
402:
403: 1;
404: __END__
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