1: # The LearningOnline Network
2: # Announce
3: #
4: # $Id: lonannounce.pm,v 1.32 2004/09/02 13:15:07 www 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: my $sec=$1;
83: # if we have a section don't show ones that aren't ours
84: if ($ENV{'request.course.sec'} &&
85: $ENV{'request.course.sec'} ne $sec) { next; }
86: # if a student without a section don't show any section ones
87: if (!$ENV{'request.role.adv'} &&
88: !$ENV{'request.course.sec'}) { next; }
89: $section=&mt('Group/Section').': '.$1;
90: $middle=~s/^\[(.*)\]\.//;
91: }
92: $middle=~s/\.$//;
93: my $realm=&mt('All Resources');
94: if ($middle=~/^(.+)\_\_\_\(all\)$/) {
95: $realm=&mt('Folder/Map').': '.&Apache::lonnet::gettitle($1);
96: } elsif ($middle) {
97: $realm=&mt('Resource').': '.&Apache::lonnet::gettitle($middle);
98: }
99: my $datetype='';
100: if ($name eq 'duedate') {
101: $datetype=&mt('Due');
102: # see if accidentally answerdate is before duedate
103: my $answerkey=$thiskey;
104: $answerkey=~s/duedate$/answerdate/;
105: if ($resourcedata{$thiskey}>$resourcedata{$answerkey}) {
106: $datetype='Due and Answer Available';
107: }
108: }
109: if ($name eq 'opendate') { $datetype=&mt('Opening'); }
110: if ($name eq 'answerdate') {
111: # see if accidentally answerdate is before duedate
112: my $duekey=$thiskey;
113: $duekey=~s/answerdate$/duedate/;
114: if ($resourcedata{$duekey}>$resourcedata{$thiskey}) {
115: # forget it
116: next;
117: }
118: $datetype=&mt('Answer Available');
119: }
120: $returnhash{$courseid.'@'.$resourcedata{$thiskey}.'_'.
121: $resourcedata{$thiskey}}=
122: 'INTERNAL:'.$datetype.': '.$realm.' ('.$section.')';
123: }
124: }
125: }
126: return %returnhash;
127: }
128:
129: sub emptycell {
130: return '<td bgcolor="#AAAAAA"> </td>';
131: }
132:
133: sub normalcell {
134: my ($day,$month,$year,$text)=@_;
135: my $output='';
136: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
137: if ($_) {
138: my $internalflag=0;
139: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
140: my $msg=join('@',@msg);
141: if ($msg=~/INTERNAL\:/) {
142: $msg=~s/INTERNAL\://gs;
143: $internalflag=1;
144: }
145: my $fullmsg=&mt('Calendar Announcement for ').$ENV{'course.'.$courseid.'.description'}.
146: '\n'.&Apache::lonlocal::locallocaltime($start);
147: if ($start!=$end) {
148: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
149: }
150: $fullmsg.=':\n'.$msg;
151: if ($courseid eq $ENV{'request.course.id'}) {
152: if ((&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))
153: && (!$showedcheck{$start.'_'.$end})
154: && ($ENV{'form.pickdate'} ne 'yes')
155: && (!$internalflag)) {
156: $output.='<input type="checkbox" name="remove_'.$start.'_'.
157: $end.'">';
158: $showedcheck{$start.'_'.$end}=1;
159: }
160: }
161: $fullmsg=~s/[\n\r]/\\n/gs;
162: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
163: $fullmsg=~s/&/\\&/g;
164: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
165: substr($msg,0,20).'...</a><br />';
166: }
167: }
168: return '<td valign="top"'.
169: ((($day eq $todayhash{'day'}) &&
170: ($month eq $todayhash{'month'}) &&
171: ($year eq $todayhash{'year'}))?' bgcolor="#FFFF00"':'').
172: '>'.&tfont('<b>'.&picklink($day,$day,$month,$year).'</b><br />'.$output).'</td>';
173: }
174:
175: sub plaincell {
176: my ($text)=@_;
177: my $output='';
178: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
179: if ($_) {
180: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
181: my $msg=join('@',@msg);
182: my $fullmsg=&mt('Calendar Announcement for ').$ENV{'course.'.$courseid.'.description'}.
183: '\n'.&Apache::lonlocal::locallocaltime($start);
184: if ($start!=$end) {
185: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
186: }
187: $msg=~s/INTERNAL\://gs;
188: $fullmsg.=':\n'.$msg;
189: $fullmsg=~s/[\n\r]/\\n/gs;
190: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
191: $fullmsg=~s/&/\\&/g;
192: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
193: substr($msg,0,40).'...</a><br />';
194: }
195: }
196: return $output;
197: }
198:
199: sub listcell {
200: my ($text)=@_;
201: my $output='';
202: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
203: if ($_) {
204: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
205: my $msg=join('@',@msg);
206: $msg=~s/INTERNAL\://gs;
207: my $fullmsg=&Apache::lonlocal::locallocaltime($start);
208: if ($start!=$end) {
209: $fullmsg.=&mt(' to ').
210: &Apache::lonlocal::locallocaltime($end);
211: }
212: $fullmsg.=':<br /><b>'.
213: $msg.'</b>';
214: $output.='<li>'.$fullmsg.'</li>';
215: }
216: }
217: return $output;
218: }
219:
220: sub nextday {
221: my %th=@_;
222: $th{'day'}++;
223: return (&Apache::loncommon::maketime(%th),$th{'month'});
224: }
225:
226: sub showday {
227: my ($tk,$mode,%allcal)=@_;
228: my %th=&Apache::loncommon::timehash($tk);
229: my ($nextday,$nextmonth)=&nextday(%th);
230: my $outp='';
231: if ($mode) {
232: my $oneday=24*3600;
233: $tk-=$oneday;
234: $nextday+=$oneday;
235: }
236: foreach (keys %allcal) {
237: my ($course,$startdate,$enddate)=($_=~/^(\w+)\@(\d+)\_(\d+)$/);
238: if (($startdate<$nextday) && ($enddate>$tk)) {
239: $outp.='___&&&___'.$course.'@'.$startdate.'@'.$enddate.'@'.
240: $allcal{$_};
241: }
242: }
243: unless ($mode) {
244: return ($nextday,$nextmonth,&normalcell(
245: $th{'day'},$th{'month'},$th{'year'},$outp));
246: } elsif ($outp) {
247: if ($mode==1) {
248: return '<br />'.&plaincell($outp);
249: } else {
250: return '<ul>'.&listcell($outp).'</ul>';
251: }
252: } else {
253: return '';
254: }
255: }
256:
257: sub tfont {
258: my $text=shift;
259: if ($ENV{'form.pickdate'} eq 'yes') {
260: return '<font size="1">'.$text.'</font>';
261: } else {
262: return $text;
263: }
264: }
265:
266: sub picklink {
267: my ($text,$day,$month,$year)=@_;
268: if ($ENV{'form.pickdate'} eq 'yes') {
269: return '<a href="javascript:dialin('.$day.','.$month.','.$year.')">'.
270: $text.'</a>';
271: } else {
272: return $text;
273: }
274: }
275:
276: sub dialscript {
277: return (<<ENDDIA);
278: <script language="Javascript">
279: function dialin(day,month,year) {
280: opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_year.value=year;
281: var slct=opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_month;
282: var i;
283: for (i=0;i<slct.length;i++) {
284: if (slct.options[i].value==month) { slct.selectedIndex=i; }
285: }
286: opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_day.value=day;
287: opener.$ENV{'form.element'}\_checkday();
288: self.close();
289: }
290: </script>
291: ENDDIA
292: }
293:
294: sub handler {
295: my $r = shift;
296: &Apache::loncommon::content_type($r,'text/html');
297: $r->send_http_header;
298: return OK if $r->header_only;
299:
300: # ---------------------------------------------------------- Get time right now
301: my $today=time;
302: %todayhash=&Apache::loncommon::timehash($today);
303: # ----------------------------------------------------------------- Check marks
304: %showedcheck=();
305: undef %showedcheck;
306: # ---------------------------------------------------------- Get month and year
307: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
308: ['month','year','pickdate','formname','element']);
309: # --------------------------------------------------- Decide what month to show
310: my $year=$todayhash{'year'};
311: if ($ENV{'form.year'}) { $year=$ENV{'form.year'}; }
312: my $month=$todayhash{'month'};
313: if ($ENV{'form.month'}) { $month=$ENV{'form.month'}; }
314:
315: # ---------------------------------------------- See if we are in pickdate mode
316: my $pickdatemode=($ENV{'form.pickdate'} eq 'yes');
317: my $pickinfo='&pickdate=yes&formname='.$ENV{'form.formname'}.
318: '&element='.$ENV{'form.element'};
319: # --------------------------------------------- Find out first day of the month
320:
321: my %firstday=&Apache::loncommon::timehash(
322: &Apache::loncommon::maketime( 'day' => 1, 'month'=> $month,
323: 'year' => $year, 'hours' => 0,
324: 'minutes' => 0, 'seconds' => 0,
325: 'dlsav' => -1 ));
326: my $weekday=$firstday{'weekday'};
327: # ------------------------------------------------------------ Print the screen
328:
329: $r->print(<<ENDDOCUMENT);
330: <html>
331: <head>
332: <title>The LearningOnline Network with CAPA</title>
333: <script>
334:
335: function trysubmit() {
336: document.anno.action.value="new";
337: document.anno.submit();
338: }
339:
340: function removesub() {
341: document.anno.action.value="del";
342: document.anno.submit();
343: }
344: </script>
345: </head>
346: ENDDOCUMENT
347: if ($pickdatemode) {
348: # no big header in pickdate mode
349: $r->print(&Apache::loncommon::bodytag("Pick a Date",'','',1).
350: &dialscript().
351: '<font size="1">');
352: } else {
353: $r->print(&Apache::loncommon::bodytag("Announcements and Calendar"));
354: }
355: # does this user have privileges to post, etc?
356: my $allowed=0;
357: if ($ENV{'request.course.id'}) {
358: $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
359: }
360: # does this user have privileges to post to servers?
361: my $serverpost=0;
362: if ($ENV{'request.role.domain'}) {
363: $serverpost=&Apache::lonnet::allowed('psa',
364: $ENV{'request.role.domain'});
365: } else {
366: $serverpost=&Apache::lonnet::allowed('psa','/');
367: }
368: # -------------------------------- BUT: do no fancy stuff when in pickdate mode
369: if ($pickdatemode) {
370: $serverpost=0;
371: $allowed=0;
372: }
373: # ------------------------------------------------------------ Process commands
374: if ($serverpost) {
375: if ($ENV{'form.serveraction'}) {
376: foreach (keys %ENV) {
377: if ($_=~/^form\.postto\_(\w+)/) {
378: $r->print(
379: '<br />Posting '.$1.': '.&Apache::lonnet::postannounce
380: ($1,$ENV{'form.serverannnounce'}));
381: }
382: }
383: }
384: $r->print(<<SERVERANNOUNCE);
385: <form name="serveranno" method="post">
386: <h3>Post Server Announcements</h3>
387: Post announcements to the system login and roles screen<br />
388: <i>(leave blank to delete announcement)</i><br />
389: <textarea name="serverannnounce" cols="60" rows="5"></textarea><br />
390: Check machines:<br />
391: SERVERANNOUNCE
392: # list servers
393: foreach (sort keys %Apache::lonnet::hostname) {
394: if (&Apache::lonnet::allowed('psa',$Apache::lonnet::hostdom{$_})) {
395: $r->print ('<br /><input type="checkbox" name="postto_'.$_.'" /> '.
396: $_.' <tt>'.$Apache::lonnet::hostname{$_}.'</tt> '.
397: '<a href="http://'.$Apache::lonnet::hostname{$_}.
398: '/announcement.txt" target="annowin">current</a>');
399: }
400: }
401: $r->print(
402: '<br /><input type="submit" name="serveraction" value="Post"></form><hr />');
403: }
404: if ($allowed) {
405: my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
406: my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
407: # ----------------------------------------------------- Store new submitted one
408: if ($ENV{'form.action'} eq 'new') {
409: my $startdate =
410: &Apache::lonhtmlcommon::get_date_from_form('startdate');
411: my $enddate =
412: &Apache::lonhtmlcommon::get_date_from_form('enddate');
413: unless ($startdate=~/^\d+$/) { $startdate=time; }
414: unless ($enddate=~/^\d+$/) { $enddate=$startdate+1; }
415: if ($startdate>$enddate) {
416: my $buffer=$startdate;
417: $startdate=$enddate;
418: $enddate=$buffer;
419: }
420: &Apache::lonnet::put('calendar',{
421: $startdate.'_'.$enddate =>
422: $ENV{'form.msg'} },$coursedom,$coursenum);
423: }
424: # ---------------------------------------------------------------- Remove items
425: if ($ENV{'form.action'} eq 'del') {
426: my @delwhich=();
427: foreach (keys %ENV) {
428: if ($_=~/^form\.remove\_(.+)$/) {
429: push(@delwhich,$1);
430: }
431: }
432: &Apache::lonnet::del('calendar',\@delwhich,$coursedom,$coursenum);
433: }
434: # -------------------------------------------------------- Form to post new one
435: my %tomorrowhash=%todayhash;
436: $tomorrowhash{'day'}++;
437: my $tomorrow=&Apache::loncommon::maketime(%tomorrowhash);
438:
439: &editfield($r,$today,$tomorrow,'');
440: }
441: # ----------------------------------------------------- Summarize all calendars
442: my %allcal=();
443: foreach (&Apache::loncommon::findallcourses()) {
444: %allcal=(%allcal,&readcalendar($_));
445: }
446:
447: # ------------------------------- Initialize table and forward backward buttons
448: my ($pm,$py,$fm,$fy)=($month-1,$year,$month+1,$year);
449: if ($pm<1) { ($pm,$py)=(12,$year-1); }
450: if ($fm>12){ ($fm,$fy)=(1,$year+1); }
451:
452: $r->print('<h1>'.('',&mt('January'),&mt('February'),&mt('March'),
453: &mt('April'),&mt('May'),
454: &mt('June'),&mt('July'),&mt('August'),
455: &mt('September'),&mt('October'),
456: &mt('November'),&mt('December'))[$month].' '.
457: $year.'</h1>');
458: # Reached the end of times, give up
459: if (($year<1970) || ($year>2037)) {
460: $r->print('<h3>No calendar available for this date.</h3>'.
461: '<a href="/adm/announcements?month='.$todayhash{'month'}.
462: '&year='.$todayhash{'year'}.'">Current Month</a></body></html>');
463: return OK;
464: }
465: $r->print(
466: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
467: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
468: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
469: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
470: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
471: '&year='.$todayhash{'year'}.
472: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a><p>'.
473: '<table border="2" cols="7" rows="5"><tr><th>'.
474: &tfont(&mt('Sun'))
475: .'</th><th>'.
476: &tfont(&mt('Mon'))
477: .'</th><th>'.
478: &tfont(&mt('Tue'))
479: .'</th><th>'.
480: &tfont(&mt('Wed'))
481: .'</th><th>'.
482: &tfont(&mt('Thu'))
483: .'</th><th>'.
484: &tfont(&mt('Fri'))
485: .'</th><th>'.
486: &tfont(&mt('Sat'))
487: .'</th></tr>');
488:
489: my $tk=&Apache::loncommon::maketime(%firstday);
490: my $outp;
491: my $nm;
492:
493: # ---------------------------------------------------------------- Actual table
494: $r->print('<tr>');
495: for (my $i=0;$i<$weekday;$i++) { $r->print(&emptycell); }
496: for (my $i=$weekday;$i<=6;$i++) {
497: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
498: $r->print($outp);
499: }
500: $r->print('</tr>');
501:
502: for (my $k=0;$k<=4;$k++) {
503: $r->print('<tr>');
504: for (my $i=0;$i<=6;$i++) {
505: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
506: if ($month!=$nm) { $outp=&emptycell; }
507: $r->print($outp);
508: }
509: $r->print('</tr>');
510: }
511: # ------------------------------------------------------------------- End table
512: $r->print('</table>');
513: # ----------------------------------------------------------------- Check marks
514: %showedcheck=();
515: undef %showedcheck;
516: # --------------------------------------------------------------- Remove button
517: if ($allowed) { $r->print('<input type="button" onClick="removesub()" value="Remove Checked Entries">'.
518: &Apache::loncommon::help_open_topic('Calendar_Remove_Announcement').'</form>'); }
519: $r->print('<p>'.
520: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
521: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
522: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
523: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
524: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
525: '&year='.$todayhash{'year'}.
526: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a></p>'.
527: ($pickdatemode?'</font>':'').
528: '</body></html>');
529: return OK;
530: }
531:
532: 1;
533: __END__
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