1: # The LearningOnline Network
2: # Announce
3: #
4: # $Id: lonannounce.pm,v 1.29 2004/07/03 20:45:23 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::lonannounce;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::loncommon;
34: use Apache::lonhtmlcommon();
35: use Apache::lonlocal;
36: use HTML::Entities();
37:
38: my %todayhash;
39: my %showedcheck;
40:
41: sub editfield {
42: my ($r,$start,$end,$text)=@_;
43: # Deal with date forms
44: my $startdateform = &Apache::lonhtmlcommon::date_setter('anno',
45: 'startdate',
46: $start);
47: my $enddateform = &Apache::lonhtmlcommon::date_setter('anno',
48: 'enddate',
49: $end);
50: my $help=&Apache::loncommon::help_open_menu('','Calendar Add Announcement','Calendar_Add_Announcement','',274,'Communication Tools');
51: $r->print(<<ENDFORM);
52: $help
53: <form name="anno" method="post">
54: <input type="hidden" value='' name="action" >
55: <table><tr><td>Starting date:</td><td>$startdateform</td></tr>
56: <tr><td>Ending date:</td><td>$enddateform</td></tr></table>
57: <textarea name="msg" rows="4" cols="60">$text</textarea>
58: <input type="button" onClick="trysubmit()" value="Post Announcement"><hr />
59: ENDFORM
60: }
61:
62: sub readcalendar {
63: my $courseid=shift;
64: my $coursenum=$ENV{'course.'.$courseid.'.num'};
65: my $coursedom=$ENV{'course.'.$courseid.'.domain'};
66: my %thiscal=&Apache::lonnet::dump('calendar',$coursedom,$coursenum);
67: my %returnhash=();
68: foreach (keys %thiscal) {
69: unless (($_=~/^error\:/) || ($thiscal{$_}=~/^error\:/)) {
70: $returnhash{$courseid.'@'.$_}=$thiscal{$_};
71: }
72: }
73: if ($courseid eq $ENV{'request.course.id'}) {
74: my %resourcedata=
75: &Apache::lonnet::dump('resourcedata',$coursedom,$coursenum);
76: foreach my $thiskey (sort keys %resourcedata) {
77: if ($resourcedata{$thiskey.'.type'}=~/^date/) {
78: my ($course,$middle,$part,$name)=
79: ($thiskey=~/^(\w+)\.(?:(.+)\.)*([\w\s]+)\.(\w+)$/);
80: my $section=&mt('All Students');
81: if ($middle=~/^\[(.*)\]\./) {
82: $section=&mt('Group/Section').': '.$1;
83: $middle=~s/^\[(.*)\]\.//;
84: }
85: $middle=~s/\.$//;
86: my $realm=&mt('All Resources');
87: if ($middle=~/^(.+)\_\_\_\(all\)$/) {
88: $realm=&mt('Folder/Map').': '.&Apache::lonnet::gettitle($1);
89: } elsif ($middle) {
90: $realm=&mt('Resource').': '.&Apache::lonnet::gettitle($middle);
91: }
92: my $datetype='';
93: if ($name eq 'duedate') {
94: $datetype=&mt('Due');
95: # see if accidentally answerdate is before duedate
96: my $answerkey=$thiskey;
97: $answerkey=~s/duedate$/answerdate/;
98: if ($resourcedata{$thiskey}>$resourcedata{$answerkey}) {
99: $datetype='Due and Answer Available';
100: }
101: }
102: if ($name eq 'opendate') { $datetype=&mt('Opening'); }
103: if ($name eq 'answerdate') {
104: # see if accidentally answerdate is before duedate
105: my $duekey=$thiskey;
106: $duekey=~s/answerdate$/duedate/;
107: if ($resourcedata{$duekey}>$resourcedata{$thiskey}) {
108: # forget it
109: next;
110: }
111: $datetype=&mt('Answer Available');
112: }
113: $returnhash{$courseid.'@'.$resourcedata{$thiskey}.'_'.
114: $resourcedata{$thiskey}}=
115: 'INTERNAL:'.$datetype.': '.$realm.' ('.$section.')';
116: }
117: }
118: }
119: return %returnhash;
120: }
121:
122: sub emptycell {
123: return '<td bgcolor="#AAAAAA"> </td>';
124: }
125:
126: sub normalcell {
127: my ($day,$month,$year,$text)=@_;
128: my $output='';
129: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
130: if ($_) {
131: my $internalflag=0;
132: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
133: my $msg=join('@',@msg);
134: if ($msg=~/INTERNAL\:/) {
135: $msg=~s/INTERNAL\://gs;
136: $internalflag=1;
137: }
138: my $fullmsg=$ENV{'course.'.$courseid.'.description'}.
139: ', '.&Apache::lonlocal::locallocaltime($start);
140: if ($start!=$end) {
141: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
142: }
143: $fullmsg.=': '.$msg;
144: if ($courseid eq $ENV{'request.course.id'}) {
145: if ((&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))
146: && (!$showedcheck{$start.'_'.$end})
147: && ($ENV{'form.pickdate'} ne 'yes')
148: && (!$internalflag)) {
149: $output.='<input type="checkbox" name="remove_'.$start.'_'.
150: $end.'">';
151: $showedcheck{$start.'_'.$end}=1;
152: }
153: }
154: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
155: $fullmsg=~s/&/\\&/g;
156: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
157: substr($msg,0,20).'...</a><br />';
158: }
159: }
160: return '<td'.
161: ((($day eq $todayhash{'day'}) &&
162: ($month eq $todayhash{'month'}) &&
163: ($year eq $todayhash{'year'}))?' bgcolor="#FFFF00"':'').
164: '>'.&tfont('<b>'.&picklink($day,$day,$month,$year).'</b><br>'.$output).'</td>';
165: }
166:
167: sub plaincell {
168: my ($text)=@_;
169: my $output='';
170: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
171: if ($_) {
172: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
173: my $msg=join('@',@msg);
174: my $fullmsg=$ENV{'course.'.$courseid.'.description'}.
175: ', '.&Apache::lonlocal::locallocaltime($start);
176: if ($start!=$end) {
177: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
178: }
179: $msg=~s/INTERNAL\://gs;
180: $fullmsg.=': '.$msg;
181: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
182: $fullmsg=~s/&/\\&/g;
183: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
184: substr($msg,0,40).'...</a><br />';
185: }
186: }
187: return $output;
188: }
189:
190: sub listcell {
191: my ($text)=@_;
192: my $output='';
193: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
194: if ($_) {
195: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
196: my $msg=join('@',@msg);
197: $msg=~s/INTERNAL\://gs;
198: my $fullmsg=&Apache::lonlocal::locallocaltime($start);
199: if ($start!=$end) {
200: $fullmsg.=&mt(' to ').
201: &Apache::lonlocal::locallocaltime($end);
202: }
203: $fullmsg.=':<br /><b>'.
204: $msg.'</b>';
205: $output.='<li>'.$fullmsg.'</li>';
206: }
207: }
208: return $output;
209: }
210:
211: sub nextday {
212: my %th=@_;
213: $th{'day'}++;
214: return (&Apache::loncommon::maketime(%th),$th{'month'});
215: }
216:
217: sub showday {
218: my ($tk,$mode,%allcal)=@_;
219: my %th=&Apache::loncommon::timehash($tk);
220: my ($nextday,$nextmonth)=&nextday(%th);
221: my $outp='';
222: if ($mode) {
223: my $oneday=24*3600;
224: $tk-=$oneday;
225: $nextday+=$oneday;
226: }
227: foreach (keys %allcal) {
228: my ($course,$startdate,$enddate)=($_=~/^(\w+)\@(\d+)\_(\d+)$/);
229: if (($startdate<$nextday) && ($enddate>$tk)) {
230: $outp.='___&&&___'.$course.'@'.$startdate.'@'.$enddate.'@'.
231: $allcal{$_};
232: }
233: }
234: unless ($mode) {
235: return ($nextday,$nextmonth,&normalcell(
236: $th{'day'},$th{'month'},$th{'year'},$outp));
237: } elsif ($outp) {
238: if ($mode==1) {
239: return '<br />'.&plaincell($outp);
240: } else {
241: return '<ul>'.&listcell($outp).'</ul>';
242: }
243: } else {
244: return '';
245: }
246: }
247:
248: sub tfont {
249: my $text=shift;
250: if ($ENV{'form.pickdate'} eq 'yes') {
251: return '<font size="1">'.$text.'</font>';
252: } else {
253: return $text;
254: }
255: }
256:
257: sub picklink {
258: my ($text,$day,$month,$year)=@_;
259: if ($ENV{'form.pickdate'} eq 'yes') {
260: return '<a href="javascript:dialin('.$day.','.$month.','.$year.')">'.
261: $text.'</a>';
262: } else {
263: return $text;
264: }
265: }
266:
267: sub dialscript {
268: return (<<ENDDIA);
269: <script language="Javascript">
270: function dialin(day,month,year) {
271: opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_year.value=year;
272: var slct=opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_month;
273: var i;
274: for (i=0;i<slct.length;i++) {
275: if (slct.options[i].value==month) { slct.selectedIndex=i; }
276: }
277: opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_day.value=day;
278: opener.$ENV{'form.element'}\_checkday();
279: self.close();
280: }
281: </script>
282: ENDDIA
283: }
284:
285: sub handler {
286: my $r = shift;
287: &Apache::loncommon::content_type($r,'text/html');
288: $r->send_http_header;
289: return OK if $r->header_only;
290:
291: # ---------------------------------------------------------- Get time right now
292: my $today=time;
293: %todayhash=&Apache::loncommon::timehash($today);
294: # ----------------------------------------------------------------- Check marks
295: %showedcheck=();
296: undef %showedcheck;
297: # ---------------------------------------------------------- Get month and year
298: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
299: ['month','year','pickdate','formname','element']);
300: # --------------------------------------------------- Decide what month to show
301: my $year=$todayhash{'year'};
302: if ($ENV{'form.year'}) { $year=$ENV{'form.year'}; }
303: my $month=$todayhash{'month'};
304: if ($ENV{'form.month'}) { $month=$ENV{'form.month'}; }
305:
306: # ---------------------------------------------- See if we are in pickdate mode
307: my $pickdatemode=($ENV{'form.pickdate'} eq 'yes');
308: my $pickinfo='&pickdate=yes&formname='.$ENV{'form.formname'}.
309: '&element='.$ENV{'form.element'};
310: # --------------------------------------------- Find out first day of the month
311:
312: my %firstday=&Apache::loncommon::timehash(
313: &Apache::loncommon::maketime( 'day' => 1, 'month'=> $month,
314: 'year' => $year, 'hours' => 0,
315: 'minutes' => 0, 'seconds' => 0,
316: 'dlsav' => $todayhash{'dlsav'} ));
317: my $weekday=$firstday{'weekday'};
318: # ------------------------------------------------------------ Print the screen
319:
320: $r->print(<<ENDDOCUMENT);
321: <html>
322: <head>
323: <title>The LearningOnline Network with CAPA</title>
324: <script>
325:
326: function trysubmit() {
327: document.anno.action.value="new";
328: document.anno.submit();
329: }
330:
331: function removesub() {
332: document.anno.action.value="del";
333: document.anno.submit();
334: }
335: </script>
336: </head>
337: ENDDOCUMENT
338: if ($pickdatemode) {
339: # no big header in pickdate mode
340: $r->print(&Apache::loncommon::bodytag("Pick a Date",'','',1).
341: &dialscript().
342: '<font size="1">');
343: } else {
344: $r->print(&Apache::loncommon::bodytag("Announcements and Calendar"));
345: }
346: # does this user have privileges to post, etc?
347: my $allowed=0;
348: if ($ENV{'request.course.id'}) {
349: $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
350: }
351: # does this user have privileges to post to servers?
352: my $serverpost=0;
353: if ($ENV{'request.role.domain'}) {
354: $serverpost=&Apache::lonnet::allowed('psa',
355: $ENV{'request.role.domain'});
356: } else {
357: $serverpost=&Apache::lonnet::allowed('psa','/');
358: }
359: # -------------------------------- BUT: do no fancy stuff when in pickdate mode
360: if ($pickdatemode) {
361: $serverpost=0;
362: $allowed=0;
363: }
364: # ------------------------------------------------------------ Process commands
365: if ($serverpost) {
366: if ($ENV{'form.serveraction'}) {
367: foreach (keys %ENV) {
368: if ($_=~/^form\.postto\_(\w+)/) {
369: $r->print(
370: '<br />Posting '.$1.': '.&Apache::lonnet::postannounce
371: ($1,$ENV{'form.serverannnounce'}));
372: }
373: }
374: }
375: $r->print(<<SERVERANNOUNCE);
376: <form name="serveranno" method="post">
377: <h3>Post Server Announcements</h3>
378: Post announcements to the system login and roles screen<br />
379: <i>(leave blank to delete announcement)</i><br />
380: <textarea name="serverannnounce" cols="60" rows="5"></textarea><br />
381: Check machines:<br />
382: SERVERANNOUNCE
383: # list servers
384: foreach (sort keys %Apache::lonnet::hostname) {
385: if (&Apache::lonnet::allowed('psa',$Apache::lonnet::hostdom{$_})) {
386: $r->print ('<br /><input type="checkbox" name="postto_'.$_.'" /> '.
387: $_.' <tt>'.$Apache::lonnet::hostname{$_}.'</tt> '.
388: '<a href="http://'.$Apache::lonnet::hostname{$_}.
389: '/announcement.txt" target="annowin">current</a>');
390: }
391: }
392: $r->print(
393: '<br /><input type="submit" name="serveraction" value="Post"></form><hr />');
394: }
395: if ($allowed) {
396: my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
397: my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
398: # ----------------------------------------------------- Store new submitted one
399: if ($ENV{'form.action'} eq 'new') {
400: my $startdate =
401: &Apache::lonhtmlcommon::get_date_from_form('startdate');
402: my $enddate =
403: &Apache::lonhtmlcommon::get_date_from_form('enddate');
404: unless ($startdate=~/^\d+$/) { $startdate=time; }
405: unless ($enddate=~/^\d+$/) { $enddate=$startdate+1; }
406: if ($startdate>$enddate) {
407: my $buffer=$startdate;
408: $startdate=$enddate;
409: $enddate=$buffer;
410: }
411: &Apache::lonnet::put('calendar',{
412: $startdate.'_'.$enddate =>
413: $ENV{'form.msg'} },$coursedom,$coursenum);
414: }
415: # ---------------------------------------------------------------- Remove items
416: if ($ENV{'form.action'} eq 'del') {
417: my @delwhich=();
418: foreach (keys %ENV) {
419: if ($_=~/^form\.remove\_(.+)$/) {
420: push(@delwhich,$1);
421: }
422: }
423: &Apache::lonnet::del('calendar',\@delwhich,$coursedom,$coursenum);
424: }
425: # -------------------------------------------------------- Form to post new one
426: my %tomorrowhash=%todayhash;
427: $tomorrowhash{'day'}++;
428: my $tomorrow=&Apache::loncommon::maketime(%tomorrowhash);
429:
430: &editfield($r,$today,$tomorrow,'');
431: }
432: # ----------------------------------------------------- Summarize all calendars
433: my %allcal=();
434: foreach (&Apache::loncommon::findallcourses()) {
435: %allcal=(%allcal,&readcalendar($_));
436: }
437:
438: # ------------------------------- Initialize table and forward backward buttons
439: my ($pm,$py,$fm,$fy)=($month-1,$year,$month+1,$year);
440: if ($pm<1) { ($pm,$py)=(12,$year-1); }
441: if ($fm>12){ ($fm,$fy)=(1,$year+1); }
442:
443: $r->print('<h1>'.('',&mt('January'),&mt('February'),&mt('March'),
444: &mt('April'),&mt('May'),
445: &mt('June'),&mt('July'),&mt('August'),
446: &mt('September'),&mt('October'),
447: &mt('November'),&mt('December'))[$month].' '.
448: $year.'</h1>');
449: # Reached the end of times, give up
450: if (($year<1970) || ($year>2037)) {
451: $r->print('<h3>No calendar available for this date.</h3>'.
452: '<a href="/adm/announcements?month='.$todayhash{'month'}.
453: '&year='.$todayhash{'year'}.'">Current Month</a></body></html>');
454: return OK;
455: }
456: $r->print(
457: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
458: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
459: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
460: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
461: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
462: '&year='.$todayhash{'year'}.
463: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a><p>'.
464: '<table border="2" cols="7" rows="5"><tr><th>'.
465: &tfont(&mt('Sun'))
466: .'</th><th>'.
467: &tfont(&mt('Mon'))
468: .'</th><th>'.
469: &tfont(&mt('Tue'))
470: .'</th><th>'.
471: &tfont(&mt('Wed'))
472: .'</th><th>'.
473: &tfont(&mt('Thu'))
474: .'</th><th>'.
475: &tfont(&mt('Fri'))
476: .'</th><th>'.
477: &tfont(&mt('Sat'))
478: .'</th></tr>');
479:
480: my $tk=&Apache::loncommon::maketime(%firstday);
481: my $outp;
482: my $nm;
483:
484: # ---------------------------------------------------------------- Actual table
485: $r->print('<tr>');
486: for (my $i=0;$i<$weekday;$i++) { $r->print(&emptycell); }
487: for (my $i=$weekday;$i<=6;$i++) {
488: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
489: $r->print($outp);
490: }
491: $r->print('</tr>');
492:
493: for (my $k=0;$k<=4;$k++) {
494: $r->print('<tr>');
495: for (my $i=0;$i<=6;$i++) {
496: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
497: if ($month!=$nm) { $outp=&emptycell; }
498: $r->print($outp);
499: }
500: $r->print('</tr>');
501: }
502: # ------------------------------------------------------------------- End table
503: $r->print('</table>');
504: # ----------------------------------------------------------------- Check marks
505: %showedcheck=();
506: undef %showedcheck;
507: # --------------------------------------------------------------- Remove button
508: if ($allowed) { $r->print('<input type="button" onClick="removesub()" value="Remove Checked Entries">'.
509: &Apache::loncommon::help_open_topic('Calendar_Remove_Announcement').'</form>'); }
510: $r->print('<p>'.
511: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
512: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
513: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
514: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
515: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
516: '&year='.$todayhash{'year'}.
517: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a></p>'.
518: ($pickdatemode?'</font>':'').
519: '</body></html>');
520: return OK;
521: }
522:
523: 1;
524: __END__
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