1: # The LearningOnline Network
2: # Announce
3: #
4: # $Id: lonannounce.pm,v 1.44 2006/01/13 15:28:36 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 Apache::lonnavmaps();
37: use Apache::lonrss();
38: use Apache::lonnet;
39: use HTML::Entities();
40:
41: my %todayhash;
42: my %showedcheck;
43:
44: sub editfield {
45: my ($r,$start,$end,$text)=@_;
46: # Deal with date forms
47: my $startdateform = &Apache::lonhtmlcommon::date_setter('anno',
48: 'startdate',
49: $start);
50: my $enddateform = &Apache::lonhtmlcommon::date_setter('anno',
51: 'enddate',
52: $end);
53: my $help=&Apache::loncommon::help_open_menu('','Calendar Add Announcement','Calendar_Add_Announcement','',274,'Communication Tools');
54: my %lt=&Apache::lonlocal::texthash('post' => 'Post Announcement',
55: 'start' => 'Starting date',
56: 'end' => 'Ending date',
57: 'incrss' => 'Include in course RSS newsfeed');
58:
59: $r->print(<<ENDFORM);
60: $help
61: <form name="anno" method="post">
62: <input type="hidden" value='' name="action" />
63: <table><tr><td>$lt{'start'}:</td><td>$startdateform</td></tr>
64: <tr><td>$lt{'end'}:</td><td>$enddateform</td></tr></table>
65: <textarea name="msg" rows="4" cols="60">$text</textarea>
66: <br />
67: <!-- <label><input type="checkbox" name="rsspost" /> $lt{'incrss'}</label> -->
68: <br /><input type="button" onClick="trysubmit()" value="$lt{'post'}" /><hr />
69: ENDFORM
70: }
71:
72: sub readcalendar {
73: my $courseid=shift;
74: my $coursenum=$env{'course.'.$courseid.'.num'};
75: my $coursedom=$env{'course.'.$courseid.'.domain'};
76: my %thiscal=&Apache::lonnet::dump('calendar',$coursedom,$coursenum);
77: my %returnhash=();
78: foreach my $item (keys(%thiscal)) {
79: unless (($item=~/^error\:/) || ($thiscal{$item}=~/^error\:/)) {
80: $returnhash{$courseid.'@'.$item}=$thiscal{$item};
81: }
82: }
83:
84: if ($courseid eq $env{'request.course.id'}) {
85: my $can_see_hidden = $env{'request.role.adv'};
86: my $navmap = Apache::lonnavmaps::navmap->new();
87: my %resourcedata=
88: &Apache::lonnet::dump('resourcedata',$coursedom,$coursenum);
89: foreach my $thiskey (sort keys %resourcedata) {
90: if ($resourcedata{$thiskey.'.type'}=~/^date/) {
91: my ($course,$middle,$part,$name)=
92: ($thiskey=~/^(\w+)\.(?:(.+)\.)*([\w\s]+)\.(\w+)$/);
93: my $section=&mt('All Students');
94: if ($middle=~/^\[(.*)\]\./) {
95: my $sec=$1;
96: # if we have a section don't show ones that aren't ours
97: if ($env{'request.course.sec'} &&
98: $env{'request.course.sec'} ne $sec) { next; }
99: # if a student without a section don't show any section ones
100: if (!$env{'request.role.adv'} &&
101: !$env{'request.course.sec'}) { next; }
102: $section=&mt('Group/Section').': '.$1;
103: $middle=~s/^\[(.*)\]\.//;
104: }
105: $middle=~s/\.$//;
106: my $realm=&mt('All Resources');
107: if ($middle=~/^(.+)\_\_\_\(all\)$/) {
108: my $map_url=$1;
109: if (!$can_see_hidden) {
110: my $res = $navmap->getResourceByUrl($map_url);
111: if ($res && $res->randomout()) { next; }
112: }
113: $realm=&mt('Folder/Map').': '.&Apache::lonnet::gettitle($map_url);
114: } elsif ($middle) {
115: if (!$can_see_hidden) {
116: my $res = $navmap->getBySymb($middle);
117: if ($res && $res->randomout()) { next; }
118: }
119: $realm=&mt('Resource').': '.&Apache::lonnet::gettitle($middle);
120: }
121: my $datetype='';
122: if ($name eq 'duedate') {
123: $datetype=&mt('Due');
124: # see if accidentally answerdate is before duedate
125: my $answerkey=$thiskey;
126: $answerkey=~s/duedate$/answerdate/;
127: if ($resourcedata{$thiskey}>$resourcedata{$answerkey}) {
128: $datetype='Due and Answer Available';
129: }
130: }
131: if ($name eq 'opendate') { $datetype=&mt('Opening'); }
132: if ($name eq 'answerdate') {
133: # see if accidentally answerdate is before duedate
134: my $duekey=$thiskey;
135: $duekey=~s/answerdate$/duedate/;
136: if ($resourcedata{$duekey}>$resourcedata{$thiskey}) {
137: # forget it
138: next;
139: }
140: $datetype=&mt('Answer Available');
141: }
142: $returnhash{$courseid.'@'.$resourcedata{$thiskey}.'_'.
143: $resourcedata{$thiskey}}=
144: 'INTERNAL:'.$datetype.': '.$realm.' ('.$section.')';
145: }
146: }
147: }
148: return %returnhash;
149: }
150:
151: sub emptycell {
152: return '<td bgcolor="#AAAAAA"> </td>';
153: }
154:
155: sub normalcell {
156: my ($day,$month,$year,$text)=@_;
157: my $output='';
158: my @items=&order($text);
159: foreach my $item (@items) {
160: if ($item) {
161: my $internalflag=0;
162: my ($courseid,$start,$end,$msg)=split(/\@/,$item,4);
163: if ($msg=~/INTERNAL\:/) {
164: $msg=~s/INTERNAL\://gs;
165: $internalflag=1;
166: }
167: my $fullmsg=&mt('Calendar Announcement for ').$env{'course.'.$courseid.'.description'}.
168: '\n'.&Apache::lonlocal::locallocaltime($start);
169: if ($start!=$end) {
170: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
171: }
172: $fullmsg.=':\n'.$msg;
173: if ($courseid eq $env{'request.course.id'}) {
174: if ((&Apache::lonnet::allowed('srm',$env{'request.course.id'}))
175: && (!$showedcheck{$start.'_'.$end})
176: && ($env{'form.pickdate'} ne 'yes')
177: && (!$internalflag)) {
178: $output.='<input type="checkbox" name="remove_'.$start.'_'.
179: $end.'">';
180: $showedcheck{$start.'_'.$end}=1;
181: }
182: }
183: $fullmsg=~s/[\n\r]/\\n/gs;
184: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
185: $fullmsg=~s/&/\\&/g;
186: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
187: substr($msg,0,20).'...</a><br />';
188: }
189: }
190: return '<td valign="top"'.
191: ((($day eq $todayhash{'day'}) &&
192: ($month eq $todayhash{'month'}) &&
193: ($year eq $todayhash{'year'}))?' bgcolor="#FFFF00"':'').
194: '>'.&tfont('<b>'.&picklink($day,$day,$month,$year).'</b><br />'.$output).'</td>';
195: }
196:
197: sub plaincell {
198: my ($text)=@_;
199: my $output='';
200: my @items=&order($text);
201: foreach my $item (@items) {
202: if ($item) {
203: my ($courseid,$start,$end,$msg)=split(/\@/,$item,4);
204: my $fullmsg=&mt('Calendar Announcement for ').$env{'course.'.$courseid.'.description'}.
205: '\n'.&Apache::lonlocal::locallocaltime($start);
206: if ($start!=$end) {
207: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
208: }
209: $msg=~s/INTERNAL\://gs;
210: $fullmsg.=':\n'.$msg;
211: $fullmsg=~s/[\n\r]/\\n/gs;
212: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
213: $fullmsg=~s/&/\\&/g;
214: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
215: substr($msg,0,80).'...</a><br />';
216: }
217: }
218: return $output;
219: }
220:
221: sub listcell {
222: my ($text)=@_;
223: my $output='';
224: my @items=&order($text);
225: foreach my $item (@items) {
226: if ($item) {
227: my ($courseid,$start,$end,$msg)=split(/\@/,$item,4);
228: $msg=~s/INTERNAL\://gs;
229: my $fullmsg=&Apache::lonlocal::locallocaltime($start);
230: if ($start!=$end) {
231: $fullmsg.=&mt(' to ').
232: &Apache::lonlocal::locallocaltime($end);
233: }
234: $fullmsg.=':<br /><b>'.
235: $msg.'</b>';
236: $output.='<li>'.$fullmsg.'</li>';
237: }
238: }
239: return $output;
240: }
241:
242: sub order {
243: my ($text)=@_;
244: my @items = split(/___&&&___/,$text);
245: sort {
246: my (undef,$astart,$aend)=split(/\@/,$a);
247: my (undef,$bstart,$bend)=split(/\@/,$b);
248: if ($astart != $bstart) {
249: return $astart <=> $bstart;
250: }
251: return $aend <=> $bend;
252: } @items;
253: }
254:
255: sub nextday {
256: my %th=@_;
257: $th{'day'}++;
258: return (&Apache::loncommon::maketime(%th),$th{'month'});
259: }
260:
261: sub showday {
262: my ($tk,$mode,%allcal)=@_;
263: my %th=&Apache::loncommon::timehash($tk);
264: my ($nextday,$nextmonth)=&nextday(%th);
265: my $outp='';
266: if ($mode) {
267: my $oneday=24*3600;
268: $tk-=$oneday;
269: $nextday+=$oneday;
270: }
271: foreach my $item (keys(%allcal)) {
272: my ($course,$startdate,$enddate)=($item=~/^(\w+)\@(\d+)\_(\d+)$/);
273: if (($startdate<$nextday) && ($enddate>=$tk)) {
274: $outp.='___&&&___'.$course.'@'.$startdate.'@'.$enddate.'@'.
275: $allcal{$item};
276: }
277: }
278: unless ($mode) {
279: return ($nextday,$nextmonth,&normalcell(
280: $th{'day'},$th{'month'},$th{'year'},$outp));
281: } elsif ($outp) {
282: if ($mode==1) {
283: return '<br />'.&plaincell($outp);
284: } else {
285: return '<ul>'.&listcell($outp).'</ul>';
286: }
287: } else {
288: return '';
289: }
290: }
291:
292: sub tfont {
293: my $text=shift;
294: if ($env{'form.pickdate'} eq 'yes') {
295: return '<font size="1">'.$text.'</font>';
296: } else {
297: return $text;
298: }
299: }
300:
301: sub picklink {
302: my ($text,$day,$month,$year)=@_;
303: if ($env{'form.pickdate'} eq 'yes') {
304: return '<a href="javascript:dialin('.$day.','.$month.','.$year.')">'.
305: $text.'</a>';
306: } else {
307: return $text;
308: }
309: }
310:
311: sub dialscript {
312: return (<<ENDDIA);
313: <script language="Javascript">
314: function dialin(day,month,year) {
315: opener.document.$env{'form.formname'}.$env{'form.element'}\_year.value=year;
316: var slct=opener.document.$env{'form.formname'}.$env{'form.element'}\_month;
317: var i;
318: for (i=0;i<slct.length;i++) {
319: if (slct.options[i].value==month) { slct.selectedIndex=i; }
320: }
321: opener.document.$env{'form.formname'}.$env{'form.element'}\_day.value=day;
322: opener.$env{'form.element'}\_checkday();
323: self.close();
324: }
325: </script>
326: ENDDIA
327: }
328:
329: sub handler {
330: my $r = shift;
331: &Apache::loncommon::content_type($r,'text/html');
332: $r->send_http_header;
333: return OK if $r->header_only;
334:
335: # ---------------------------------------------------------- Get time right now
336: my $today=time;
337: %todayhash=&Apache::loncommon::timehash($today);
338: # ----------------------------------------------------------------- Check marks
339: %showedcheck=();
340: undef %showedcheck;
341: # ---------------------------------------------------------- Get month and year
342: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
343: ['month','year','pickdate','formname','element']);
344: # --------------------------------------------------- Decide what month to show
345: my $year=$todayhash{'year'};
346: if ($env{'form.year'}) { $year=$env{'form.year'}; }
347: my $month=$todayhash{'month'};
348: if ($env{'form.month'}) { $month=$env{'form.month'}; }
349:
350: # ---------------------------------------------- See if we are in pickdate mode
351: my $pickdatemode=($env{'form.pickdate'} eq 'yes');
352: my $pickinfo='&pickdate=yes&formname='.$env{'form.formname'}.
353: '&element='.$env{'form.element'};
354: # --------------------------------------------- Find out first day of the month
355:
356: my %firstday=&Apache::loncommon::timehash(
357: &Apache::loncommon::maketime( 'day' => 1, 'month'=> $month,
358: 'year' => $year, 'hours' => 0,
359: 'minutes' => 0, 'seconds' => 0,
360: 'dlsav' => -1 ));
361: my $weekday=$firstday{'weekday'};
362: # ------------------------------------------------------------ Print the screen
363: my $html=&Apache::lonxml::xmlbegin();
364: $r->print(<<ENDDOCUMENT);
365: $html
366: <head>
367: <title>The LearningOnline Network with CAPA</title>
368: <script>
369:
370: function trysubmit() {
371: document.anno.action.value="new";
372: document.anno.submit();
373: }
374:
375: function removesub() {
376: document.anno.action.value="del";
377: document.anno.submit();
378: }
379: </script>
380: </head>
381: ENDDOCUMENT
382: if ($pickdatemode) {
383: # no big header in pickdate mode
384: $r->print(&Apache::loncommon::bodytag("Pick a Date",'','',1).
385: &dialscript().
386: '<font size="1">');
387: } else {
388: $r->print(&Apache::loncommon::bodytag("Announcements and Calendar"));
389: }
390: # does this user have privileges to post, etc?
391: my $allowed=0;
392: if ($env{'request.course.id'}) {
393: $allowed=&Apache::lonnet::allowed('srm',$env{'request.course.id'});
394: }
395: # does this user have privileges to post to servers?
396: my $serverpost=0;
397: if ($env{'request.role.domain'}) {
398: $serverpost=&Apache::lonnet::allowed('psa',
399: $env{'request.role.domain'});
400: } else {
401: $serverpost=&Apache::lonnet::allowed('psa','/');
402: }
403: # -------------------------------- BUT: do no fancy stuff when in pickdate mode
404: if ($pickdatemode) {
405: $serverpost=0;
406: $allowed=0;
407: }
408: # ------------------------------------------------------------ Process commands
409: if ($serverpost) {
410: if ($env{'form.serveraction'}) {
411: foreach my $key (keys(%env)) {
412: if ($key=~/^form\.postto\_(\w+)/) {
413: $r->print(
414: '<br />Posting '.$1.': '.&Apache::lonnet::postannounce
415: ($1,$env{'form.serverannnounce'}));
416: }
417: }
418: }
419: $r->print(<<SERVERANNOUNCE);
420: <form name="serveranno" method="post">
421: <h3>Post Server Announcements</h3>
422: Post announcements to the system login and roles screen<br />
423: <i>(leave blank to delete announcement)</i><br />
424: <textarea name="serverannnounce" cols="60" rows="5"></textarea><br />
425: Check machines:<br />
426: SERVERANNOUNCE
427: # list servers
428: foreach my $host (sort(keys(%Apache::lonnet::hostname))) {
429: if (&Apache::lonnet::allowed('psa',$Apache::lonnet::hostdom{$host})) {
430: $r->print ('<br /><input type="checkbox" name="postto_'.$host.'" /> '.
431: $host.' <tt>'.$Apache::lonnet::hostname{$host}.'</tt> '.
432: '<a href="http://'.$Apache::lonnet::hostname{$host}.
433: '/announcement.txt" target="annowin">current</a>');
434: }
435: }
436: $r->print(
437: '<br /><input type="submit" name="serveraction" value="Post"></form><hr />');
438: }
439: if ($allowed) {
440: my $coursenum=$env{'course.'.$env{'request.course.id'}.'.num'};
441: my $coursedom=$env{'course.'.$env{'request.course.id'}.'.domain'};
442: # ----------------------------------------------------- Store new submitted one
443: if ($env{'form.action'} eq 'new') {
444: my $startdate =
445: &Apache::lonhtmlcommon::get_date_from_form('startdate');
446: my $enddate =
447: &Apache::lonhtmlcommon::get_date_from_form('enddate');
448: unless ($startdate=~/^\d+$/) { $startdate=time; }
449: unless ($enddate=~/^\d+$/) { $enddate=$startdate+1; }
450: if ($startdate>$enddate) {
451: my $buffer=$startdate;
452: $startdate=$enddate;
453: $enddate=$buffer;
454: }
455: &Apache::lonnet::put('calendar',{
456: $startdate.'_'.$enddate =>
457: $env{'form.msg'} },$coursedom,$coursenum);
458: if ($env{'form.rsspost'}) {
459: &Apache::lonrss::addentry($coursenum,$coursedom,'Course_Announcements',
460: &mt('Event from [_1] to [_2]',
461: &Apache::lonlocal::locallocaltime($startdate),
462: &Apache::lonlocal::locallocaltime($enddate)),
463: $env{'form.msg'},'/adm/announcements','public');
464: }
465: }
466: # ---------------------------------------------------------------- Remove items
467: if ($env{'form.action'} eq 'del') {
468: my @delwhich=();
469: foreach my $key (keys(%env)) {
470: if ($key=~/^form\.remove\_(.+)$/) {
471: push(@delwhich,$1);
472: }
473: }
474: &Apache::lonnet::del('calendar',\@delwhich,$coursedom,$coursenum);
475: }
476: # -------------------------------------------------------- Form to post new one
477: my %tomorrowhash=%todayhash;
478: $tomorrowhash{'day'}++;
479: my $tomorrow=&Apache::loncommon::maketime(%tomorrowhash);
480:
481: &editfield($r,$today,$tomorrow,'');
482: }
483: # ----------------------------------------------------- Summarize all calendars
484: my %allcal=();
485: foreach my $course (&Apache::loncommon::findallcourses()) {
486: %allcal=(%allcal,&readcalendar($course));
487: }
488:
489: # ------------------------------- Initialize table and forward backward buttons
490: my ($pm,$py,$fm,$fy)=($month-1,$year,$month+1,$year);
491: if ($pm<1) { ($pm,$py)=(12,$year-1); }
492: if ($fm>12){ ($fm,$fy)=(1,$year+1); }
493:
494: $r->print('<h1>'.('',&mt('January'),&mt('February'),&mt('March'),
495: &mt('April'),&mt('May'),
496: &mt('June'),&mt('July'),&mt('August'),
497: &mt('September'),&mt('October'),
498: &mt('November'),&mt('December'))[$month].' '.
499: $year.'</h1>');
500: # Reached the end of times, give up
501: if (($year<1970) || ($year>2037)) {
502: $r->print('<h3>No calendar available for this date.</h3>'.
503: '<a href="/adm/announcements?month='.$todayhash{'month'}.
504: '&year='.$todayhash{'year'}.'">Current Month</a></body></html>');
505: return OK;
506: }
507: $r->print(
508: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
509: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
510: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
511: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
512: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
513: '&year='.$todayhash{'year'}.
514: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a><p>'.
515: '<table border="2" cols="7" rows="5"><tr><th>'.
516: &tfont(&mt('Sun'))
517: .'</th><th>'.
518: &tfont(&mt('Mon'))
519: .'</th><th>'.
520: &tfont(&mt('Tue'))
521: .'</th><th>'.
522: &tfont(&mt('Wed'))
523: .'</th><th>'.
524: &tfont(&mt('Thu'))
525: .'</th><th>'.
526: &tfont(&mt('Fri'))
527: .'</th><th>'.
528: &tfont(&mt('Sat'))
529: .'</th></tr>');
530:
531: my $tk=&Apache::loncommon::maketime(%firstday);
532: my $outp;
533: my $nm;
534:
535: # ---------------------------------------------------------------- Actual table
536: $r->print('<tr>');
537: for (my $i=0;$i<$weekday;$i++) { $r->print(&emptycell); }
538: for (my $i=$weekday;$i<=6;$i++) {
539: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
540: $r->print($outp);
541: }
542: $r->print('</tr>');
543:
544: for (my $k=0;$k<=4;$k++) {
545: $r->print('<tr>');
546: for (my $i=0;$i<=6;$i++) {
547: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
548: if ($month!=$nm) { $outp=&emptycell; }
549: $r->print($outp);
550: }
551: $r->print('</tr>');
552: }
553: # ------------------------------------------------------------------- End table
554: $r->print('</table>');
555: # ----------------------------------------------------------------- Check marks
556: %showedcheck=();
557: undef %showedcheck;
558: # --------------------------------------------------------------- Remove button
559: if ($allowed) { $r->print('<input type="button" onClick="removesub()" value="Remove Checked Entries">'.
560: &Apache::loncommon::help_open_topic('Calendar_Remove_Announcement').'</form>'); }
561: $r->print('<p>'.
562: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
563: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
564: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
565: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
566: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
567: '&year='.$todayhash{'year'}.
568: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a></p>'.
569: ($pickdatemode?'</font>':'').
570: '</body></html>');
571: return OK;
572: }
573:
574: 1;
575: __END__
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