1: # The LearningOnline Network
2: # Announce
3: #
4: # $Id: lonannounce.pm,v 1.27 2004/02/17 01:46:34 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_topic('Calendar_Add_Announcement').
51: &Apache::loncommon::help_open_faq(274).
52: &Apache::loncommon::help_open_bug('Communication Tools');
53: $r->print(<<ENDFORM);
54: $help
55: <form name="anno" method="post">
56: <input type="hidden" value='' name="action" >
57: <table><tr><td>Starting date:</td><td>$startdateform</td></tr>
58: <tr><td>Ending date:</td><td>$enddateform</td></tr></table>
59: <textarea name="msg" rows="4" cols="60">$text</textarea>
60: <input type="button" onClick="trysubmit()" value="Post Announcement"><hr />
61: ENDFORM
62: }
63:
64: sub readcalendar {
65: my $courseid=shift;
66: my $coursenum=$ENV{'course.'.$courseid.'.num'};
67: my $coursedom=$ENV{'course.'.$courseid.'.domain'};
68: my %thiscal=&Apache::lonnet::dump('calendar',$coursedom,$coursenum);
69: my %returnhash=();
70: foreach (keys %thiscal) {
71: unless (($_=~/^error\:/) || ($thiscal{$_}=~/^error\:/)) {
72: $returnhash{$courseid.'@'.$_}=$thiscal{$_};
73: }
74: }
75: if ($courseid eq $ENV{'request.course.id'}) {
76: my %resourcedata=
77: &Apache::lonnet::dump('resourcedata',$coursedom,$coursenum);
78: foreach my $thiskey (sort keys %resourcedata) {
79: if ($resourcedata{$thiskey.'.type'}=~/^date/) {
80: my ($course,$middle,$part,$name)=
81: ($thiskey=~/^(\w+)\.(?:(.+)\.)*([\w\s]+)\.(\w+)$/);
82: my $section=&mt('All Students');
83: if ($middle=~/^\[(.*)\]\./) {
84: $section=&mt('Group/Section').': '.$1;
85: $middle=~s/^\[(.*)\]\.//;
86: }
87: $middle=~s/\.$//;
88: my $realm=&mt('All Resources');
89: if ($middle=~/^(.+)\_\_\_\(all\)$/) {
90: $realm=&mt('Folder/Map').': '.&Apache::lonnet::gettitle($1);
91: } elsif ($middle) {
92: $realm=&mt('Resource').': '.&Apache::lonnet::gettitle($middle);
93: }
94: my $datetype='';
95: if ($name eq 'duedate') { $datetype=&mt('Due'); }
96: if ($name eq 'opendate') { $datetype=&mt('Opening'); }
97: if ($name eq 'answerdate') { $datetype=&mt('Answer Available'); }
98: $returnhash{$courseid.'@'.$resourcedata{$thiskey}.'_'.
99: $resourcedata{$thiskey}}=
100: 'INTERNAL:'.$datetype.': '.$realm.' ('.$section.')';
101: }
102: }
103: }
104: return %returnhash;
105: }
106:
107: sub emptycell {
108: return '<td bgcolor="#AAAAAA"> </td>';
109: }
110:
111: sub normalcell {
112: my ($day,$month,$year,$text)=@_;
113: my $output='';
114: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
115: if ($_) {
116: my $internalflag=0;
117: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
118: my $msg=join('@',@msg);
119: if ($msg=~/INTERNAL\:/) {
120: $msg=~s/INTERNAL\://gs;
121: $internalflag=1;
122: }
123: my $fullmsg=$ENV{'course.'.$courseid.'.description'}.
124: ', '.&Apache::lonlocal::locallocaltime($start);
125: if ($start!=$end) {
126: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
127: }
128: $fullmsg.=': '.$msg;
129: if ($courseid eq $ENV{'request.course.id'}) {
130: if ((&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))
131: && (!$showedcheck{$start.'_'.$end})
132: && ($ENV{'form.pickdate'} ne 'yes')
133: && (!$internalflag)) {
134: $output.='<input type="checkbox" name="remove_'.$start.'_'.
135: $end.'">';
136: $showedcheck{$start.'_'.$end}=1;
137: }
138: }
139: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
140: $fullmsg=~s/&/\\&/g;
141: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
142: substr($msg,0,20).'...</a><br />';
143: }
144: }
145: return '<td'.
146: ((($day eq $todayhash{'day'}) &&
147: ($month eq $todayhash{'month'}) &&
148: ($year eq $todayhash{'year'}))?' bgcolor="#FFFF00"':'').
149: '>'.&tfont('<b>'.&picklink($day,$day,$month,$year).'</b><br>'.$output).'</td>';
150: }
151:
152: sub plaincell {
153: my ($text)=@_;
154: my $output='';
155: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
156: if ($_) {
157: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
158: my $msg=join('@',@msg);
159: my $fullmsg=$ENV{'course.'.$courseid.'.description'}.
160: ', '.&Apache::lonlocal::locallocaltime($start);
161: if ($start!=$end) {
162: $fullmsg.=' - '.&Apache::lonlocal::locallocaltime($end);
163: }
164: $msg=~s/INTERNAL\://gs;
165: $fullmsg.=': '.$msg;
166: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
167: $fullmsg=~s/&/\\&/g;
168: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
169: substr($msg,0,40).'...</a><br />';
170: }
171: }
172: return $output;
173: }
174:
175: sub listcell {
176: my ($text)=@_;
177: my $output='';
178: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
179: if ($_) {
180: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
181: my $msg=join('@',@msg);
182: $msg=~s/INTERNAL\://gs;
183: my $fullmsg=&Apache::lonlocal::locallocaltime($start);
184: if ($start!=$end) {
185: $fullmsg.=&mt(' to ').
186: &Apache::lonlocal::locallocaltime($end);
187: }
188: $fullmsg.=':<br /><b>'.
189: $msg.'</b>';
190: $output.='<li>'.$fullmsg.'</li>';
191: }
192: }
193: return $output;
194: }
195:
196: sub nextday {
197: my %th=@_;
198: $th{'day'}++;
199: return (&Apache::loncommon::maketime(%th),$th{'month'});
200: }
201:
202: sub showday {
203: my ($tk,$mode,%allcal)=@_;
204: my %th=&Apache::loncommon::timehash($tk);
205: my ($nextday,$nextmonth)=&nextday(%th);
206: my $outp='';
207: if ($mode) {
208: my $oneday=24*3600;
209: $tk-=$oneday;
210: $nextday+=$oneday;
211: }
212: foreach (keys %allcal) {
213: my ($course,$startdate,$enddate)=($_=~/^(\w+)\@(\d+)\_(\d+)$/);
214: if (($startdate<$nextday) && ($enddate>$tk)) {
215: $outp.='___&&&___'.$course.'@'.$startdate.'@'.$enddate.'@'.
216: $allcal{$_};
217: }
218: }
219: unless ($mode) {
220: return ($nextday,$nextmonth,&normalcell(
221: $th{'day'},$th{'month'},$th{'year'},$outp));
222: } elsif ($outp) {
223: if ($mode==1) {
224: return '<br />'.&plaincell($outp);
225: } else {
226: return '<ul>'.&listcell($outp).'</ul>';
227: }
228: } else {
229: return '';
230: }
231: }
232:
233: sub tfont {
234: my $text=shift;
235: if ($ENV{'form.pickdate'} eq 'yes') {
236: return '<font size="1">'.$text.'</font>';
237: } else {
238: return $text;
239: }
240: }
241:
242: sub picklink {
243: my ($text,$day,$month,$year)=@_;
244: if ($ENV{'form.pickdate'} eq 'yes') {
245: return '<a href="javascript:dialin('.$day.','.$month.','.$year.')">'.
246: $text.'</a>';
247: } else {
248: return $text;
249: }
250: }
251:
252: sub dialscript {
253: return (<<ENDDIA);
254: <script language="Javascript">
255: function dialin(day,month,year) {
256: opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_year.value=year;
257: var slct=opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_month;
258: var i;
259: for (i=0;i<slct.length;i++) {
260: if (slct.options[i].value==month) { slct.selectedIndex=i; }
261: }
262: opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_day.value=day;
263: opener.$ENV{'form.element'}\_checkday();
264: self.close();
265: }
266: </script>
267: ENDDIA
268: }
269:
270: sub handler {
271: my $r = shift;
272: &Apache::loncommon::content_type($r,'text/html');
273: $r->send_http_header;
274: return OK if $r->header_only;
275:
276: # ---------------------------------------------------------- Get time right now
277: my $today=time;
278: %todayhash=&Apache::loncommon::timehash($today);
279: # ----------------------------------------------------------------- Check marks
280: %showedcheck=();
281: undef %showedcheck;
282: # ---------------------------------------------------------- Get month and year
283: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
284: ['month','year','pickdate','formname','element']);
285: # --------------------------------------------------- Decide what month to show
286: my $year=$todayhash{'year'};
287: if ($ENV{'form.year'}) { $year=$ENV{'form.year'}; }
288: my $month=$todayhash{'month'};
289: if ($ENV{'form.month'}) { $month=$ENV{'form.month'}; }
290:
291: # ---------------------------------------------- See if we are in pickdate mode
292: my $pickdatemode=($ENV{'form.pickdate'} eq 'yes');
293: my $pickinfo='&pickdate=yes&formname='.$ENV{'form.formname'}.
294: '&element='.$ENV{'form.element'};
295: # --------------------------------------------- Find out first day of the month
296:
297: my %firstday=&Apache::loncommon::timehash(
298: &Apache::loncommon::maketime( 'day' => 1, 'month'=> $month,
299: 'year' => $year, 'hours' => 0,
300: 'minutes' => 0, 'seconds' => 0,
301: 'dlsav' => $todayhash{'dlsav'} ));
302: my $weekday=$firstday{'weekday'};
303: # ------------------------------------------------------------ Print the screen
304:
305: $r->print(<<ENDDOCUMENT);
306: <html>
307: <head>
308: <title>The LearningOnline Network with CAPA</title>
309: <script>
310:
311: function trysubmit() {
312: document.anno.action.value="new";
313: document.anno.submit();
314: }
315:
316: function removesub() {
317: document.anno.action.value="del";
318: document.anno.submit();
319: }
320: </script>
321: </head>
322: ENDDOCUMENT
323: if ($pickdatemode) {
324: # no big header in pickdate mode
325: $r->print(&Apache::loncommon::bodytag("Pick a Date",'','',1).
326: &dialscript().
327: '<font size="1">');
328: } else {
329: $r->print(&Apache::loncommon::bodytag("Announcements and Calendar"));
330: }
331: # does this user have privileges to post, etc?
332: my $allowed=0;
333: if ($ENV{'request.course.id'}) {
334: $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
335: }
336: # does this user have privileges to post to servers?
337: my $serverpost=0;
338: if ($ENV{'request.role.domain'}) {
339: $serverpost=&Apache::lonnet::allowed('psa',
340: $ENV{'request.role.domain'});
341: } else {
342: $serverpost=&Apache::lonnet::allowed('psa','/');
343: }
344: # -------------------------------- BUT: do no fancy stuff when in pickdate mode
345: if ($pickdatemode) {
346: $serverpost=0;
347: $allowed=0;
348: }
349: # ------------------------------------------------------------ Process commands
350: if ($serverpost) {
351: if ($ENV{'form.serveraction'}) {
352: foreach (keys %ENV) {
353: if ($_=~/^form\.postto\_(\w+)/) {
354: $r->print(
355: '<br />Posting '.$1.': '.&Apache::lonnet::postannounce
356: ($1,$ENV{'form.serverannnounce'}));
357: }
358: }
359: }
360: $r->print(<<SERVERANNOUNCE);
361: <form name="serveranno" method="post">
362: <h3>Post Server Announcements</h3>
363: Post announcements to the system login and roles screen<br />
364: <i>(leave blank to delete announcement)</i><br />
365: <textarea name="serverannnounce" cols="60" rows="5"></textarea><br />
366: Check machines:<br />
367: SERVERANNOUNCE
368: # list servers
369: foreach (sort keys %Apache::lonnet::hostname) {
370: if (&Apache::lonnet::allowed('psa',$Apache::lonnet::hostdom{$_})) {
371: $r->print ('<br /><input type="checkbox" name="postto_'.$_.'" /> '.
372: $_.' <tt>'.$Apache::lonnet::hostname{$_}.'</tt> '.
373: '<a href="http://'.$Apache::lonnet::hostname{$_}.
374: '/announcement.txt" target="annowin">current</a>');
375: }
376: }
377: $r->print(
378: '<br /><input type="submit" name="serveraction" value="Post"></form><hr />');
379: }
380: if ($allowed) {
381: my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
382: my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
383: # ----------------------------------------------------- Store new submitted one
384: if ($ENV{'form.action'} eq 'new') {
385: my $startdate =
386: &Apache::lonhtmlcommon::get_date_from_form('startdate');
387: my $enddate =
388: &Apache::lonhtmlcommon::get_date_from_form('enddate');
389: unless ($startdate=~/^\d+$/) { $startdate=time; }
390: unless ($enddate=~/^\d+$/) { $enddate=$startdate+1; }
391: if ($startdate>$enddate) {
392: my $buffer=$startdate;
393: $startdate=$enddate;
394: $enddate=$buffer;
395: }
396: &Apache::lonnet::put('calendar',{
397: $startdate.'_'.$enddate =>
398: $ENV{'form.msg'} },$coursedom,$coursenum);
399: }
400: # ---------------------------------------------------------------- Remove items
401: if ($ENV{'form.action'} eq 'del') {
402: my @delwhich=();
403: foreach (keys %ENV) {
404: if ($_=~/^form\.remove\_(.+)$/) {
405: push(@delwhich,$1);
406: }
407: }
408: &Apache::lonnet::del('calendar',\@delwhich,$coursedom,$coursenum);
409: }
410: # -------------------------------------------------------- Form to post new one
411: my %tomorrowhash=%todayhash;
412: $tomorrowhash{'day'}++;
413: my $tomorrow=&Apache::loncommon::maketime(%tomorrowhash);
414:
415: &editfield($r,$today,$tomorrow,'');
416: }
417: # ----------------------------------------------------- Summarize all calendars
418: my %allcal=();
419: foreach (&Apache::loncommon::findallcourses()) {
420: %allcal=(%allcal,&readcalendar($_));
421: }
422:
423: # ------------------------------- Initialize table and forward backward buttons
424: my ($pm,$py,$fm,$fy)=($month-1,$year,$month+1,$year);
425: if ($pm<1) { ($pm,$py)=(12,$year-1); }
426: if ($fm>12){ ($fm,$fy)=(1,$year+1); }
427:
428: $r->print('<h1>'.('',&mt('January'),&mt('February'),&mt('March'),
429: &mt('April'),&mt('May'),
430: &mt('June'),&mt('July'),&mt('August'),
431: &mt('September'),&mt('October'),
432: &mt('November'),&mt('December'))[$month].' '.
433: $year.'</h1>');
434: # Reached the end of times, give up
435: if (($year<1970) || ($year>2037)) {
436: $r->print('<h3>No calendar available for this date.</h3>'.
437: '<a href="/adm/announcements?month='.$todayhash{'month'}.
438: '&year='.$todayhash{'year'}.'">Current Month</a></body></html>');
439: return OK;
440: }
441: $r->print(
442: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
443: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
444: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
445: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
446: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
447: '&year='.$todayhash{'year'}.
448: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a><p>'.
449: '<table border="2" cols="7" rows="5"><tr><th>'.
450: &tfont(&mt('Sun'))
451: .'</th><th>'.
452: &tfont(&mt('Mon'))
453: .'</th><th>'.
454: &tfont(&mt('Tue'))
455: .'</th><th>'.
456: &tfont(&mt('Wed'))
457: .'</th><th>'.
458: &tfont(&mt('Thu'))
459: .'</th><th>'.
460: &tfont(&mt('Fri'))
461: .'</th><th>'.
462: &tfont(&mt('Sat'))
463: .'</th></tr>');
464:
465: my $tk=&Apache::loncommon::maketime(%firstday);
466: my $outp;
467: my $nm;
468:
469: # ---------------------------------------------------------------- Actual table
470: $r->print('<tr>');
471: for (my $i=0;$i<$weekday;$i++) { $r->print(&emptycell); }
472: for (my $i=$weekday;$i<=6;$i++) {
473: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
474: $r->print($outp);
475: }
476: $r->print('</tr>');
477:
478: for (my $k=0;$k<=4;$k++) {
479: $r->print('<tr>');
480: for (my $i=0;$i<=6;$i++) {
481: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
482: if ($month!=$nm) { $outp=&emptycell; }
483: $r->print($outp);
484: }
485: $r->print('</tr>');
486: }
487: # ------------------------------------------------------------------- End table
488: $r->print('</table>');
489: # ----------------------------------------------------------------- Check marks
490: %showedcheck=();
491: undef %showedcheck;
492: # --------------------------------------------------------------- Remove button
493: if ($allowed) { $r->print('<input type="button" onClick="removesub()" value="Remove Checked Entries">'.
494: &Apache::loncommon::help_open_topic('Calendar_Remove_Announcement').'</form>'); }
495: $r->print('<p>'.
496: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
497: ($pickdatemode?$pickinfo:'').'">'.&mt('Previous Month').'</a> '.
498: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
499: ($pickdatemode?$pickinfo:'').'">'.&mt('Next Month').'</a>'.
500: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
501: '&year='.$todayhash{'year'}.
502: ($pickdatemode?$pickinfo:'').'">'.&mt('Current Month').'</a></p>'.
503: ($pickdatemode?'</font>':'').
504: '</body></html>');
505: return OK;
506: }
507:
508: 1;
509: __END__
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