1: # The LearningOnline Network
2: # Announce
3: #
4: # $Id: lonannounce.pm,v 1.19 2003/09/03 01:53:46 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 HTML::Entities();
36:
37: my %todayhash;
38: my %showedcheck;
39:
40: sub editfield {
41: my ($r,$start,$end,$text)=@_;
42: # Deal with date forms
43: my $startdateform = &Apache::lonhtmlcommon::date_setter('anno',
44: 'startdate',
45: $start);
46: my $enddateform = &Apache::lonhtmlcommon::date_setter('anno',
47: 'enddate',
48: $end);
49:
50: $r->print(<<ENDFORM);
51: <form name="anno" method="post">
52: <input type="hidden" value='' name="action" >
53: <table><tr><td>Starting date:</td><td>$startdateform</td></tr>
54: <tr><td>Ending date:</td><td>$enddateform</td></tr></table>
55: <textarea name="msg" rows="4" cols="60">$text</textarea>
56: <input type="button" onClick="trysubmit()" value="Post Announcement"><hr>
57: ENDFORM
58: }
59:
60: sub readcalendar {
61: my $courseid=shift;
62: my $coursenum=$ENV{'course.'.$courseid.'.num'};
63: my $coursedom=$ENV{'course.'.$courseid.'.domain'};
64: my %thiscal=&Apache::lonnet::dump('calendar',$coursedom,$coursenum);
65: my %returnhash=();
66: foreach (keys %thiscal) {
67: unless (($_=~/^error\:/) || ($thiscal{$_}=~/^error\:/)) {
68: $returnhash{$courseid.'@'.$_}=$thiscal{$_};
69: }
70: }
71: return %returnhash;
72: }
73:
74: sub emptycell {
75: return '<td bgcolor="#AAAAAA"> </td>';
76: }
77:
78: sub normalcell {
79: my ($day,$month,$year,$text)=@_;
80: my $output='';
81: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
82: if ($_) {
83: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
84: my $msg=join('@',@msg);
85: my $fullmsg=$ENV{'course.'.$courseid.'.description'}.
86: ', '.localtime($start).' - '.localtime($end).': '.$msg;
87: if ($courseid eq $ENV{'request.course.id'}) {
88: if ((&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))
89: && (!$showedcheck{$start.'_'.$end})
90: && ($ENV{'form.pickdate'} ne 'yes')) {
91: $output.='<input type="checkbox" name="remove_'.$start.'_'.
92: $end.'">';
93: $showedcheck{$start.'_'.$end}=1;
94: }
95: }
96: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
97: $fullmsg=~s/&/\\&/g;
98: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
99: substr($msg,0,20).'...</a><br />';
100: }
101: }
102: return '<td'.
103: ((($day eq $todayhash{'day'}) &&
104: ($month eq $todayhash{'month'}) &&
105: ($year eq $todayhash{'year'}))?' bgcolor="#FFFF00"':'').
106: '>'.&tfont('<b>'.&picklink($day,$day,$month,$year).'</b><br>'.$output).'</td>';
107: }
108:
109: sub plaincell {
110: my ($text)=@_;
111: my $output='';
112: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
113: if ($_) {
114: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
115: my $msg=join('@',@msg);
116: my $fullmsg=$ENV{'course.'.$courseid.'.description'}.
117: ', '.localtime($start).' - '.localtime($end).': '.$msg;
118: $fullmsg=&HTML::Entities::encode($fullmsg,'<>&"\'');
119: $fullmsg=~s/&/\\&/g;
120: $output.='<a href="javascript:alert('."'$fullmsg'".')">'.
121: substr($msg,0,40).'...</a><br />';
122: }
123: }
124: return $output;
125: }
126:
127: sub listcell {
128: my ($text)=@_;
129: my $output='';
130: foreach (split(/\_\_\_\&\&\&\_\_\_/,$text)) {
131: if ($_) {
132: my ($courseid,$start,$end,@msg)=split(/\@/,$_);
133: my $msg=join('@',@msg);
134: my $fullmsg=localtime($start).' to '.localtime($end).':<br /><b>'.
135: $msg.'</b>';
136: $output.='<li>'.$fullmsg.'</li>';
137: }
138: }
139: return $output;
140: }
141:
142: sub nextday {
143: my %th=@_;
144: $th{'day'}++;
145: return (&Apache::loncommon::maketime(%th),$th{'month'});
146: }
147:
148: sub showday {
149: my ($tk,$mode,%allcal)=@_;
150: my %th=&Apache::loncommon::timehash($tk);
151: my ($nextday,$nextmonth)=&nextday(%th);
152: my $outp='';
153: my $oneday=24*3600;
154: foreach (keys %allcal) {
155: my ($course,$startdate,$enddate)=($_=~/^(\w+)\@(\d+)\_(\d+)$/);
156: if (($startdate<$nextday) && ($enddate>$tk)) {
157: $outp.='___&&&___'.$course.'@'.$startdate.'@'.$enddate.'@'.
158: $allcal{$_};
159: }
160: }
161: unless ($mode) {
162: return ($nextday,$nextmonth,&normalcell(
163: $th{'day'},$th{'month'},$th{'year'},$outp));
164: } elsif ($outp) {
165: if ($mode==1) {
166: return '<br />'.&plaincell($outp);
167: } else {
168: return '<ul>'.&listcell($outp).'</ul>';
169: }
170: } else {
171: return '';
172: }
173: }
174:
175: sub tfont {
176: my $text=shift;
177: if ($ENV{'form.pickdate'} eq 'yes') {
178: return '<font size="1">'.$text.'</font>';
179: } else {
180: return $text;
181: }
182: }
183:
184: sub picklink {
185: my ($text,$day,$month,$year)=@_;
186: if ($ENV{'form.pickdate'} eq 'yes') {
187: return '<a href="javascript:dialin('.$day.','.$month.','.$year.')">'.
188: $text.'</a>';
189: } else {
190: return $text;
191: }
192: }
193:
194: sub dialscript {
195: return (<<ENDDIA);
196: <script language="Javascript">
197: function dialin(day,month,year) {
198: opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_year.value=year;
199: var slct=opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_month;
200: var i;
201: for (i=0;i<slct.length;i++) {
202: if (slct.options[i].value==month) { slct.selectedIndex=i; }
203: }
204: opener.document.$ENV{'form.formname'}.$ENV{'form.element'}\_day.value=day;
205: opener.$ENV{'form.element'}\_checkday();
206: self.close();
207: }
208: </script>
209: ENDDIA
210: }
211:
212: sub handler {
213: my $r = shift;
214: $r->content_type('text/html');
215: $r->send_http_header;
216: return OK if $r->header_only;
217:
218: # ---------------------------------------------------------- Get time right now
219: my $today=time;
220: %todayhash=&Apache::loncommon::timehash($today);
221: # ----------------------------------------------------------------- Check marks
222: %showedcheck=();
223: undef %showedcheck;
224: # ---------------------------------------------------------- Get month and year
225: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
226: ['month','year','pickdate','formname','element']);
227: # --------------------------------------------------- Decide what month to show
228: my $year=$todayhash{'year'};
229: if ($ENV{'form.year'}) { $year=$ENV{'form.year'}; }
230: my $month=$todayhash{'month'};
231: if ($ENV{'form.month'}) { $month=$ENV{'form.month'}; }
232:
233: # ---------------------------------------------- See if we are in pickdate mode
234: my $pickdatemode=($ENV{'form.pickdate'} eq 'yes');
235: my $pickinfo='&pickdate=yes&formname='.$ENV{'form.formname'}.
236: '&element='.$ENV{'form.element'};
237: # --------------------------------------------- Find out first day of the month
238:
239: my %firstday=&Apache::loncommon::timehash(
240: &Apache::loncommon::maketime( 'day' => 1, 'month'=> $month,
241: 'year' => $year, 'hours' => 0,
242: 'minutes' => 0, 'seconds' => 0,
243: 'dlsav' => $todayhash{'dlsav'} ));
244: my $weekday=$firstday{'weekday'};
245: # ------------------------------------------------------------ Print the screen
246:
247: $r->print(<<ENDDOCUMENT);
248: <html>
249: <head>
250: <title>The LearningOnline Network with CAPA</title>
251: <script>
252:
253: function trysubmit() {
254: document.anno.action.value="new";
255: document.anno.submit();
256: }
257:
258: function removesub() {
259: document.anno.action.value="del";
260: document.anno.submit();
261: }
262: </script>
263: </head>
264: ENDDOCUMENT
265: if ($pickdatemode) {
266: # no big header in pickdate mode
267: $r->print(&Apache::loncommon::bodytag("Pick a Date",'','',1).
268: &dialscript().
269: '<font size="1">');
270: } else {
271: $r->print(&Apache::loncommon::bodytag("Announcements and Calendar"));
272: }
273: # does this user have privileges to post, etc?
274: my $allowed=0;
275: if ($ENV{'request.course.id'}) {
276: $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
277: }
278: # does this user have privileges to post to servers?
279: my $serverpost=0;
280: if ($ENV{'request.role.domain'}) {
281: $serverpost=&Apache::lonnet::allowed('psa',
282: $ENV{'request.role.domain'});
283: } else {
284: $serverpost=&Apache::lonnet::allowed('psa','/');
285: }
286: # -------------------------------- BUT: do no fancy stuff when in pickdate mode
287: if ($pickdatemode) {
288: $serverpost=0;
289: $allowed=0;
290: }
291: # ------------------------------------------------------------ Process commands
292: if ($serverpost) {
293: if ($ENV{'form.serveraction'}) {
294: foreach (keys %ENV) {
295: if ($_=~/^form\.postto\_(\w+)/) {
296: $r->print(
297: '<br />Posting '.$1.': '.&Apache::lonnet::postannounce
298: ($1,$ENV{'form.serverannnounce'}));
299: }
300: }
301: }
302: $r->print(<<SERVERANNOUNCE);
303: <form name="serveranno" method="post">
304: <h3>Post Server Announcements</h3>
305: Post announcements to the system login and roles screen<br />
306: <i>(leave blank to delete announcement)</i><br />
307: <textarea name="serverannnounce" cols="60" rows="5"></textarea><br />
308: Check machines:<br />
309: SERVERANNOUNCE
310: # list servers
311: foreach (sort keys %Apache::lonnet::hostname) {
312: if (&Apache::lonnet::allowed('psa',$Apache::lonnet::hostdom{$_})) {
313: $r->print ('<br /><input type="checkbox" name="postto_'.$_.'" /> '.
314: $_.' <tt>'.$Apache::lonnet::hostname{$_}.'</tt> '.
315: '<a href="http://'.$Apache::lonnet::hostname{$_}.
316: '/announcement.txt" target="annowin">current</a>');
317: }
318: }
319: $r->print(
320: '<br /><input type="submit" name="serveraction" value="Post"></form><hr />');
321: }
322: if ($allowed) {
323: my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
324: my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
325: # ----------------------------------------------------- Store new submitted one
326: if ($ENV{'form.action'} eq 'new') {
327: my $startdate =
328: &Apache::lonhtmlcommon::get_date_from_form('startdate');
329: my $enddate =
330: &Apache::lonhtmlcommon::get_date_from_form('enddate');
331: unless ($startdate=~/^\d+$/) { $startdate=time; }
332: unless ($enddate=~/^\d+$/) { $enddate=$startdate+1; }
333: if ($startdate>$enddate) {
334: my $buffer=$startdate;
335: $startdate=$enddate;
336: $enddate=$buffer;
337: }
338: &Apache::lonnet::put('calendar',{
339: $startdate.'_'.$enddate =>
340: $ENV{'form.msg'} },$coursedom,$coursenum);
341: }
342: # ---------------------------------------------------------------- Remove items
343: if ($ENV{'form.action'} eq 'del') {
344: my @delwhich=();
345: foreach (keys %ENV) {
346: if ($_=~/^form\.remove\_(.+)$/) {
347: push(@delwhich,$1);
348: }
349: }
350: &Apache::lonnet::del('calendar',\@delwhich,$coursedom,$coursenum);
351: }
352: # -------------------------------------------------------- Form to post new one
353: my %tomorrowhash=%todayhash;
354: $tomorrowhash{'day'}++;
355: my $tomorrow=&Apache::loncommon::maketime(%tomorrowhash);
356:
357: &editfield($r,$today,$tomorrow,'');
358: }
359: # ----------------------------------------------------- Summarize all calendars
360: my %allcal=();
361: foreach (&Apache::loncommon::findallcourses()) {
362: %allcal=(%allcal,&readcalendar($_));
363: }
364:
365: # ------------------------------- Initialize table and forward backward buttons
366: my ($pm,$py,$fm,$fy)=($month-1,$year,$month+1,$year);
367: if ($pm<1) { ($pm,$py)=(12,$year-1); }
368: if ($fm>12){ ($fm,$fy)=(1,$year+1); }
369:
370: $r->print('<h1>'.('','January','February','March','April','May',
371: 'June','July','August','September','October',
372: 'November','December')[$month].' '.$year.'</h1>');
373: # Reached the end of times, give up
374: if (($year<1970) || ($year>2037)) {
375: $r->print('<h3>No calendar available for this date.</h3>'.
376: '<a href="/adm/announcements?month='.$todayhash{'month'}.
377: '&year='.$todayhash{'year'}.'">Current Month</a></body></html>');
378: return OK;
379: }
380: $r->print(
381: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
382: ($pickdatemode?$pickinfo:'').'">Previous Month</a> '.
383: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
384: ($pickdatemode?$pickinfo:'').'">Next Month</a>'.
385: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
386: '&year='.$todayhash{'year'}.
387: ($pickdatemode?$pickinfo:'').'">Current Month</a><p>'.
388: '<table border="2" cols="7" rows="5"><tr><th>'.
389: &tfont('Sun')
390: .'</th><th>'.
391: &tfont('Mon')
392: .'</th><th>'.
393: &tfont('Tue')
394: .'</th><th>'.
395: &tfont('Wed')
396: .'</th><th>'.
397: &tfont('Thu')
398: .'</th><th>'.
399: &tfont('Fri')
400: .'</th><th>'.
401: &tfont('Sat')
402: .'</th></tr>');
403:
404: my $tk=&Apache::loncommon::maketime(%firstday);
405: my $outp;
406: my $nm;
407:
408: # ---------------------------------------------------------------- Actual table
409: $r->print('<tr>');
410: for (my $i=0;$i<$weekday;$i++) { $r->print(&emptycell); }
411: for (my $i=$weekday;$i<=6;$i++) {
412: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
413: $r->print($outp);
414: }
415: $r->print('</tr>');
416:
417: for (my $k=0;$k<=3;$k++) {
418: $r->print('<tr>');
419: for (my $i=0;$i<=6;$i++) {
420: ($tk,$nm,$outp)=&showday($tk,0,%allcal);
421: if ($month!=$nm) { $outp=&emptycell; }
422: $r->print($outp);
423: }
424: $r->print('</tr>');
425: }
426: # ------------------------------------------------------------------- End table
427: $r->print('</table>');
428: # ----------------------------------------------------------------- Check marks
429: %showedcheck=();
430: undef %showedcheck;
431: # --------------------------------------------------------------- Remove button
432: if ($allowed) { $r->print('<input type="button" onClick="removesub()" value="Remove Checked Entries"></form>'); }
433: $r->print('<p>'.
434: '<a href="/adm/announcements?month='.$pm.'&year='.$py.
435: ($pickdatemode?$pickinfo:'').'">Previous Month</a> '.
436: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.
437: ($pickdatemode?$pickinfo:'').'">Next Month</a>'.
438: ' <a href="/adm/announcements?month='.$todayhash{'month'}.
439: '&year='.$todayhash{'year'}.
440: ($pickdatemode?$pickinfo:'').'">Current Month</a></p>'.
441: ($pickdatemode?'</font>':'').
442: '</body></html>');
443: return OK;
444: }
445:
446: 1;
447: __END__
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