File:
[LON-CAPA] /
loncom /
interface /
selfenroll.pm
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1.16:
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Mon Feb 9 04:11:11 2009 UTC (15 years, 3 months ago) by
raeburn
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- Store enrollment request record in requestor's own selfenrollrequests.db (as well as in corresponding db file for the course).
- Modify record in requestor's selfenrollrequests.db when CC approves or rejects enrollment request.
1: # The LearningOnline Network
2: # Allow users to self-enroll in a course
3: #
4: # $Id: selfenroll.pm,v 1.16 2009/02/09 04:11:11 raeburn 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::selfenroll;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::lonnet;
34: use Apache::loncommon;
35: use Apache::lonlocal;
36: use Apache::createaccount;
37: use LONCAPA qw(:DEFAULT :match);
38:
39: sub handler {
40: my $r = shift;
41: &Apache::loncommon::content_type($r,'text/html');
42: $r->send_http_header;
43: if ($r->header_only) {
44: return OK;
45: }
46: my $handle = &Apache::lonnet::check_for_valid_session($r);
47: my $lonidsdir=$r->dir_config('lonIDsDir');
48: my $lonhost = $r->dir_config('lonHostID');
49: if ($handle ne '') {
50: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
51: }
52: &Apache::lonacc::get_posted_cgi($r);
53: &Apache::lonlocal::get_language_handle($r);
54: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['courseid']);
55: my $js = &Apache::createaccount::catreturn_js();
56: my ($coursechk,$courseid) = &validate_course_id($env{'form.courseid'});
57: if ($coursechk ne 'ok') {
58: &page_header($r,$courseid,$js);
59: $r->print('<h3>'.&mt('Self-enrollment error').'</h3>'.
60: '<span class="LC_error">'.
61: &mt('Invalid domain or course number').'</span>');
62: &page_footer($r);
63: return OK;
64: }
65: my $now = time;
66: if ($env{'form.phase'} eq 'login') {
67: $js .= "\n".&Apache::createaccount::javascript_setforms($now);
68: }
69: my %coursehash = &Apache::lonnet::coursedescription($courseid);
70: my $cdom = $coursehash{'domain'};
71: my $cnum = $coursehash{'num'};
72: my $desc = $coursehash{'description'};
73: &page_header($r,$courseid,$js,$desc);
74: my $include = $r->dir_config('lonIncludes');
75: if ($env{'form.phase'} eq 'login') {
76: my $jsh=Apache::File->new($include."/londes.js");
77: $r->print(<$jsh>);
78: }
79: my ($canenroll,$selfenroll_types,$selfenroll_registered,@cancreate,
80: $knownuser,$selfenroll_access_start,$selfenroll_access_end,
81: $selfenroll_section,$selfenroll_future,%curr_role,$cdomdesc,
82: $selfenroll_approval,$selfenroll_limit,$selfenroll_cap,
83: $selfenroll_notifylist,$owner);
84: $selfenroll_types = $coursehash{'internal.selfenroll_types'};
85: $selfenroll_registered = $coursehash{'internal.selfenroll_registered'};
86: $selfenroll_section = $coursehash{'internal.selfenroll_section'};
87: $selfenroll_access_start = $coursehash{'internal.selfenroll_start_access'};
88: $selfenroll_access_end = $coursehash{'internal.selfenroll_end_access'};
89: $selfenroll_limit = $coursehash{'internal.selfenroll_limit'};
90: $selfenroll_cap = $coursehash{'internal.selfenroll_cap'};
91: $selfenroll_approval = $coursehash{'internal.selfenroll_approval'};
92: $selfenroll_notifylist = $coursehash{'internal.selfenroll_notifylist'};
93: $owner = $coursehash{'internal.courseowner'};
94: my $nospace;
95: if ($selfenroll_types ne '') {
96: my $start = $coursehash{'internal.selfenroll_start_date'};
97: my $end = $coursehash{'internal.selfenroll_end_date'};
98: if (($start > 0 && $start < $now) && (($end == 0) || ($end > 0 && $end > $now))) {
99: if (($selfenroll_limit eq 'allstudents') ||
100: ($selfenroll_limit eq 'selfenroll')) {
101: $nospace =
102: &enrollment_limit_check($selfenroll_limit,$selfenroll_cap,
103: $cdom,$cnum);
104: if (!$nospace) {
105: $canenroll = 1;
106: }
107: } else {
108: $canenroll = 1;
109: }
110: } elsif (($end == 0) || ($end > 0 && $end > $now)) {
111: if ($start > $now) {
112: if (($selfenroll_limit eq 'allstudents') ||
113: ($selfenroll_limit eq 'selfenroll')) {
114: $nospace =
115: &enrollment_limit_check($selfenroll_limit,$cdom,$cnum);
116: }
117: if (!$nospace) {
118: $selfenroll_future = &Apache::lonlocal::locallocaltime($start);
119: }
120: }
121: }
122: }
123: $knownuser = &user_is_known();
124: if (!$canenroll) {
125: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3><span class="LC_warning">'.
126: &mt('Self-enrollment is not currently available for this course.').
127: '</span><br /><br />');
128: if ($nospace) {
129: if ($selfenroll_limit eq 'allstudents') {
130: $r->print(&mt('The enrollment limit of [quant,_1,student] has been reached.',$selfenroll_cap));
131: } else {
132: $r->print(&mt('The enrollment limit of [quant,_1,self-enrolled student] has been reached.',$selfenroll_cap));
133:
134: }
135: }
136: if ($selfenroll_types ne '') {
137: if ($selfenroll_future ne '') {
138: if ($selfenroll_types eq '*') {
139: $r->print(&mt('Self-enrollment will become available starting [_1], and will be available to all LON-CAPA users.',$selfenroll_future).'<br />');
140: } else {
141: my ($enrolltypes,$longtypes,$alldoms);
142: if ($knownuser) {
143: &get_selfenroll_filters($selfenroll_types,$env{'user.domain'});
144: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
145: if (ref($enrolltypes) eq 'HASH') {
146: if (ref($enrolltypes->{$env{'user.domain'}}) eq 'ARRAY') {
147: if (grep(/^any$/,@{$enrolltypes->{$env{'user.domain'}}})) {
148: $r->print(&mt('Self-enrollment will become available starting [_1], and will be available to all LON-CAPA users at your institution ([_2]).',
149: $selfenroll_future,$domdesc).'<br />');
150:
151: } else {
152: if (&user_can_selfenroll($env{'user.domain'},
153: $env{'user.name'},
154: $enrolltypes->{$env{'user.domain'}})) {
155: $r->print(&mt('Self-enrollment will become available starting [_1]; please enroll at that time.',$selfenroll_future));
156: } else {
157: $r->print(&mt('Although self-enrollment will become available starting [_1], you are ineligible for enrollment.',$selfenroll_future).'<br />');
158: $r->print(&print_selfenroll_types($longtypes,$env{'user.domain'}));
159: }
160: }
161: }
162: }
163: } else {
164: $r->print(&mt('Self-enrollment will become available starting [_1].',
165: $selfenroll_future).'<br />');
166: $r->print(&print_selfenroll_types($longtypes));
167: }
168: }
169: }
170: }
171: }
172: if ($knownuser) {
173: foreach my $key (keys(%env)) {
174: if ($key =~ m-^user\.role\.st\./$cdom/$cnum/?(\w*)$-) {
175: my $sec = $1;
176: my ($start,$end) = split(/\./,$env{$key});
177: my $status = 'active';
178: if (($end) && ($end<=$now)) {
179: $status = 'previous';
180: }
181: if (($start) && ($now<$start)) {
182: $status = 'future';
183: }
184: if ($status eq 'active' || $status eq 'future') {
185: $curr_role{'status'} = $status;
186: $curr_role{'section'} = $sec;
187: if ($curr_role{'section'} eq '') {
188: $curr_role{'section'} = &mt('none');
189: }
190: $curr_role{'start'} = &Apache::lonlocal::locallocaltime($start);
191: $curr_role{'role'} = 'st./'.$cdom.'/'.$cnum;
192: if ($sec ne '') {
193: $curr_role{'role'} .= '/'.$sec;
194: }
195: }
196: }
197: }
198: }
199: if (!$canenroll) {
200: if (keys(%curr_role)) {
201: $r->print(&has_role(%curr_role));
202: }
203: &page_footer($r);
204: return OK;
205: }
206: @cancreate = &can_create($cdom);
207: my ($form,$login_path,$firsturl,$create_path,$sso_url,$missing_formitem);
208: $form = 'logmein';
209: $login_path = '/adm/login';
210: $firsturl= '/adm/selfenroll?courseid='.$courseid;
211: $create_path = '/adm/createaccount';
212: $sso_url = $r->dir_config('lonSSOReloginServer');
213: if ($sso_url eq '') {
214: $sso_url = $login_path;
215: }
216: $missing_formitem = &mt('The link to the requested page could not be followed.')."\\n".&mt('The placeholder for the courseID is absent.');
217: if ($knownuser) {
218: if (keys(%curr_role)) {
219: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3>'.
220: '<span class="LC_warning">'.&has_role(%curr_role).'</span>');
221: &page_footer($r);
222: return OK;
223: }
224: &process_self_enroll($r,$cdom,$cnum,$selfenroll_types,$selfenroll_registered,
225: $selfenroll_access_start,$selfenroll_access_end,
226: $selfenroll_section,$now,$selfenroll_approval,
227: $selfenroll_notifylist,$owner);
228: } elsif ($env{'form.phase'} eq 'login') {
229: my $submit_text = &mt('Log in');
230: $r->print('<h3>'.&mt('Log-in to LON-CAPA').'</h3>');
231: my $udom = &Apache::lonnet::default_login_domain();
232: $r->print(&Apache::createaccount::login_box($now,$lonhost,$courseid,
233: $submit_text,$udom,'selfenroll'));
234: $r->print(&mt('You will be able to self-enroll in the course you selected ([_1]) after you have successfully logged in.','<b>'.$desc.'</b>'));
235: &page_footer($r);
236: return OK;
237: } elsif (@cancreate > 0) {
238: $r->print(<<END);
239: <script type="text/javascript">
240: function setPath(formname,formaction,item,arg) {
241: var formidx = getFormByName(formname);
242: if (formidx > -1) {
243: if (formaction != '') {
244: document.forms[formidx].action = formaction;
245: }
246: var itemid = getIndexByName(formidx,'setting');
247: if (itemid > -1) {
248: document.forms[formidx].elements[itemid].name = item;
249: document.forms[formidx].elements[itemid].value = arg;
250: document.forms[formidx].submit();
251: } else {
252: alert("$missing_formitem");
253: }
254: }
255: return;
256: }
257:
258: </script>
259: END
260: $r->print('<h3>'.&mt('LON-CAPA account required').'</h3>'.
261: &mt('You need to be logged into LON-CAPA to self-enroll in a course.').'<ul><li>'.&mt('If you have an account in LON-CAPA, [_1]log-in[_2].','<a href="javascript:setPath('."'$form','','phase','login'".')">','</a>').'</li>');
262: if (@cancreate > 1) {
263: $r->print('<li>'.&mt('Otherwise:').'<br />');
264: my $count = 0;
265: foreach my $type ('sso','login','email') {
266: if (($count > 0) && ($count <@cancreate)) {
267: $r->print(' , '.&mt('or').'<br />');
268: }
269: if (grep(/^$type$/,@cancreate)) {
270: if ($type eq 'sso') {
271: $r->print(' '.&mt("if you have an institutional log-in, use your institution's [_1]single sign on page[_2] to log-in, then create an account",'<a href="javascript:setPath('."'$form','$sso_url','firsturl','$firsturl'".')">','</a>'));
272: } elsif ($type eq 'login') {
273: $r->print(' '.&mt('if you have an institutional login, [_1]create an account[_2]','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
274: } elsif ($type eq 'email') {
275: $r->print(' '.&mt('you can use an e-mail address to [_1]create an account[_2]','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
276: }
277: $count ++;
278: }
279: }
280: $r->print('.<br />');
281: } else {
282: if ($cancreate[0] eq 'login') {
283: $r->print('<li>'.&mt('Otherwise, if you have an institutional login, [_1]create an account[_2].','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
284: } elsif ($cancreate[0] eq 'email') {
285: $r->print('<li>'.&mt('Otherwise, you will use an e-mail address to [_1]create an account[_2].','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
286: } elsif ($cancreate[0] eq 'sso') {
287: $r->print('<li>'.&mt("Otherwise, use your institution's [_1]single sign on page[_2] to log-in, then create an account.",'<a href="javascript:setPath('."'$form','$sso_url','firsturl','$firsturl'".')">','</a>'));
288: }
289: }
290: if ($selfenroll_types eq '*') {
291: $r->print('<br />'.&mt('You will be able to self enroll in this course once the account has been created.').'</li></ul>');
292: } else {
293: $r->print('</li></ul>');
294: my ($enrolltypes,$longtypes,$alldoms) =
295: &get_selfenroll_filters($selfenroll_types);
296: $r->print(&print_selfenroll_types($longtypes));
297: }
298: } else {
299: my $cdomdesc = &Apache::lonnet::domain($cdom,'description');
300: $r->print('<h3>'.&mt('LON-CAPA account required').'</h3>');
301: $r->print(&mt('You must [_1]log-in[_2] to LON-CAPA with an existing account to be able to enroll in this course, as account creation at this institution ([_3]) is not permitted when self-enrolling.','<a href="'.$login_path.'">','</a>',$cdomdesc));
302: if ($selfenroll_types ne '*') {
303: my ($enrolltypes,$longtypes,$alldoms) =
304: &get_selfenroll_filters($selfenroll_types);
305: $r->print('<br />'.&print_selfenroll_types($longtypes));
306: }
307: my $displayurl = &escape($firsturl);
308: $r->print(&mt('Submit a request to the LON-CAPA [_1]helpdesk[_2] for [_3] if you require assistance.','<a href="/adm/helpdesk?origurl='.$displayurl.'">','</a>',$cdomdesc));
309: }
310: $r->print("\n".'<form name="'.$form.'" method="post" action="">'."\n".
311: '<input type="hidden" name="courseid" value="'.$courseid.'" />'."\n".
312: '<input type="hidden" name="setting" value=""/>'."\n".
313: &Apache::lonhtmlcommon::echo_form_input(['backto','courseid','context','phase'])."\n".
314: '</form>'."\n");
315: &page_footer($r);
316: return OK;
317: }
318:
319: sub enrollment_limit_check {
320: my ($selfenroll_limit,$selfenroll_cap,$cdom,$cnum) = @_;
321: my $nospace = 0;
322: my (%idx,%stucount);
323: my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
324: $idx{'type'} = &Apache::loncoursedata::CL_TYPE();
325: $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
326: while (my ($student,$data) = each(%$classlist)) {
327: if (($data->[$idx{'status'}] eq 'Active') ||
328: ($data->[$idx{'status'}] eq 'Future')) {
329: if ($data->[$idx{'type'}] eq 'selfenroll') {
330: $stucount{'selfenroll'} ++;
331: }
332: $stucount{'allstudents'} ++;
333: }
334: }
335: if ($stucount{$selfenroll_limit} >= $selfenroll_cap) {
336: $nospace = 1;
337: }
338: return $nospace;
339: }
340:
341: sub page_header {
342: my ($r,$courseid,$js,$desc) = @_;
343: my $start_page =
344: &Apache::loncommon::start_page('Self-enroll in a LON-CAPA course',$js,
345: {'no_inline_link' => 1,});
346: $r->print($start_page);
347: &Apache::lonhtmlcommon::clear_breadcrumbs();
348: &Apache::createaccount::selfenroll_crumbs($r,$courseid,$desc);
349: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Self-enroll in course'));
350: return;
351: }
352:
353: sub page_footer {
354: my ($r) = @_;
355: $r->print('<form name="backupcrumbs" method="post" action="/adm/coursecatalog">'."\n".
356: &Apache::lonhtmlcommon::echo_form_input(['backto','courseid','phase','context']).
357: '</form>'.&Apache::loncommon::end_page());
358: return;
359: }
360:
361: sub validate_course_id {
362: my ($courseid) = @_;
363: my ($cdom,$cnum) = ($env{'form.courseid'} =~ /^($match_domain)_($match_courseid)$/);
364: if ($cdom ne '' && $cnum ne '') {
365: if (&Apache::lonnet::is_course($cdom,$cnum)) {
366: return ('ok',$courseid);
367: }
368: }
369: return;
370: }
371:
372: sub user_is_known {
373: my $known = 0;
374: if ($env{'user.name'} ne '' && $env{'user.name'} ne 'public'
375: && $env{'user.domain'} ne '' && $env{'user.domain'} ne 'public') {
376: $known = 1;
377: }
378: return $known;
379: }
380:
381: sub can_create {
382: my ($cdom) = @_;
383: my @cancreate;
384: my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$cdom);
385: if (ref($domconfig{'usercreation'}) eq 'HASH') {
386: if (ref($domconfig{'usercreation'}{'cancreate'}) eq 'HASH') {
387: if ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') {
388: if (ref($domconfig{'usercreation'}{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
389: @cancreate = @{$domconfig{'usercreation'}{'cancreate'}{'selfcreate'}};
390: } else {
391: if (($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne 'none') &&
392: ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'} ne '')) {
393: @cancreate = ($domconfig{'usercreation'}{'cancreate'}{'selfcreate'});
394: }
395: }
396: }
397: }
398: }
399: return @cancreate;
400: }
401:
402: sub has_role {
403: my (%curr_role) = @_;
404: my $output;
405: if ($curr_role{'status'} eq 'active') {
406: my $rolelink = &jump_to_role($curr_role{'role'});
407: $output = &mt('You already have an active student role (section: "[_1]") in this course.',$curr_role{'section'}).'<br>'.$rolelink;
408: } elsif ($curr_role{'status'} eq 'future') {
409: $output = &mt('You have a student role (section: "[_1]") in this course which will become active [_2].',$curr_role{'section'},$curr_role{'start'});
410: }
411: return $output;
412: }
413:
414: sub process_self_enroll {
415: my ($r,$cdom,$cnum,$selfenroll_types,$selfenroll_registered,
416: $selfenroll_access_start,$selfenroll_access_end,$selfenroll_section,
417: $now,$selfenroll_approval,$selfenroll_notifylist,$owner) = @_;
418: my $udom = $env{'user.domain'};
419: my $uname = $env{'user.name'};
420: my $selfenroll = 0;
421: my ($enrolltypes,$longtypes,$alldoms);
422: if ($selfenroll_types eq '*') {
423: $selfenroll = 1;
424: } else {
425: ($enrolltypes,$longtypes,$alldoms) =
426: &get_selfenroll_filters($selfenroll_types,$udom);
427: if ($alldoms) {
428: $selfenroll = 1;
429: } elsif (ref($enrolltypes) eq 'HASH') {
430: if (ref($enrolltypes->{$udom}) eq 'ARRAY') {
431: if (grep(/^any$/,@{$enrolltypes->{$udom}})) {
432: $selfenroll = 1;
433: } else {
434: $selfenroll = &user_can_selfenroll($udom,$uname,$enrolltypes->{$udom});
435: }
436: }
437: }
438: }
439: if ($selfenroll) {
440: my $usec = $selfenroll_section;
441: if ($selfenroll_section eq 'none') {
442: $usec = '';
443: }
444: if ($selfenroll_registered) {
445: my ($registered,$instsec,$message) = &check_registered($cdom,$cnum);
446: $usec = $instsec;
447: if (!$registered) {
448: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3>'.&mt('Self-enrollment is restricted to students officially registered for this course.').'<br />');
449: if ($message) {
450: $r->print($message);
451: } else {
452: $r->print(&mt('As you are not currently registered for this course, self-enrollment is unavailable.'));
453: }
454: return;
455: }
456: }
457: if ($selfenroll_approval) {
458: my $outcome =
459: &store_selfenroll_request($udom,$uname,$usec,$cdom,$cnum,
460: $selfenroll_notifylist,$owner);
461: $r->print($outcome);
462: } else {
463: my $enrollresult =
464: &Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef,
465: undef,undef,$usec,$selfenroll_access_end,$selfenroll_access_start,
466: 'selfenroll',undef,$cdom.'_'.$cnum,$selfenroll);
467: if ($enrollresult eq 'ok') {
468: my (%userroles,%newrole,%newgroups);
469: my $role = 'st';
470: my $area = '/'.$cdom.'/'.$cnum;
471: my $spec = $role.'.'.$area;
472: if ($usec ne '') {
473: $spec .= '/'.$usec;
474: $area .= '/'.$usec;
475: }
476: &Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum,
477: $area);
478: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,%newgroups);
479: $userroles{'user.role.'.$spec} = $selfenroll_access_start.'.'.$selfenroll_access_end;
480: &Apache::lonnet::appenv(\%userroles,[$role,'cm']);
481: $r->print('<h3>'.&mt('Enrollment process complete').'</h3>');
482: if ($selfenroll_access_end && $selfenroll_access_end <= $now) {
483: $r->print(&mt('The end date for access to this course for users who self-enroll has passed.').'<br />'.&mt('Consequently, although a new role was created for you in the course, it is an inactive role which does not provide access to the course.'));
484: } else {
485: $r->print(&mt('Self-enrollment in this course was successful.').'<br />');
486: my $showstart = &Apache::lonlocal::locallocaltime($selfenroll_access_start);
487: my $showend = &Apache::lonlocal::locallocaltime($selfenroll_access_end);
488: if ($selfenroll_access_start && $selfenroll_access_start >$now) {
489: $r->print(&mt('The start date for access to this course for users who self-enroll has yet to be reached.').'<br />'.&mt('Consequently, although a new role was created for you in the course, you will not be able to select this role until [_1].',$showstart));
490: } else {
491: my $newrole = 'st./'.$cdom.'/'.$cnum;
492: if ($usec ne '') {
493: $newrole .= '/'.$usec;
494: }
495: my $rolelink = &jump_to_role($newrole);
496: $r->print(&mt('Your new role is available immediately, and will provide access to the course until [_1].',$showend).'<br /><br />'."\n".
497: $rolelink);
498: }
499: }
500: } else {
501: $r->print('<h3>'.&mt('Enrollment incomplete').'</h3>'.
502: &mt('Self-enrollment in this course failed.'));
503: if ($enrollresult ne '') {
504: $r->print('<span class="LC_error">'.$enrollresult.'</span>');
505: }
506: }
507: }
508: } else {
509: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3>'.
510: &mt('You are not permitted to enroll yourself in this course.').'<br />');
511: $r->print(&print_selfenroll_types($longtypes));
512: }
513: return;
514: }
515:
516: sub user_can_selfenroll {
517: my ($udom,$uname,$domenrolltypes) = @_;
518: my $selfenroll = 0;
519: my %userhash = &Apache::lonnet::userenvironment($udom,$uname,'inststatus');
520: my @inststatuses;
521: if ($userhash{'inststatus'} eq '') {
522: push(@inststatuses,'other');
523: } else {
524: @inststatuses = split(':',$userhash{'inststatus'});
525: }
526: foreach my $type (@inststatuses) {
527: if (ref($domenrolltypes) eq 'ARRAY') {
528: if (grep(/^\Q$type\E$/,@{$domenrolltypes})) {
529: $selfenroll = 1;
530: last;
531: }
532: }
533: }
534: return $selfenroll;
535: }
536:
537: sub store_selfenroll_request {
538: my ($udom,$uname,$usec,$cdom,$cnum,$selfenroll_notifylist,$owner) = @_;
539: my $namespace = 'selfenrollrequests';
540: my $output;
541: my $now = time;
542: my %existing =
543: &Apache::lonnet::get($namespace,[$uname.':'.$udom],$cdom,$cnum);
544: if ($existing{$uname.':'.$udom}) {
545: my ($timestamp,$sec) = split(/:/,$existing{$uname.':'.$udom});
546: $output = &mt('A self-enrollment request already exists for you for this course.').'<br />'.&mt('Your earlier request was submitted: [_1] and remains in a queue awaiting action by a Course Coordinator.',&Apache::lonlocal::locallocaltime($timestamp));
547: } else {
548: my %selfenroll = (
549: $uname.':'.$udom => $now.':'.$usec,
550: );
551: my $putresult = &Apache::lonnet::put($namespace,\%selfenroll,$cdom,$cnum);
552: if ($putresult eq 'ok') {
553: my %userenroll = (
554: $cdom.'_'.$cnum => {
555: timestamp => $now,
556: section => $usec,
557: status => 'request',
558: });
559: my $warning;
560: my $userresult = &Apache::lonnet::put($namespace,\%userenroll,$udom,$uname);
561: if ($userresult ne 'ok') {
562: $warning = &mt('An error occurred saving a personal record of your request.');
563: }
564: $output = &mt('Your request for self-enrollment has been recorded.').'<br />'.
565: &mt('A message will be sent to your LON-CAPA account when the course coordinator takes action on your request.').'<br />';
566: my %emails = &Apache::loncommon::getemails($uname,$udom);
567: if (($emails{'permanentemail'} ne '') || ($emails{'notification'} ne '')) {
568: my $address = $emails{'permanentemail'};
569: if ($address eq '') {
570: $address = $emails{'notification'};
571: }
572: $output.= &mt('An e-mail will also be sent to: [_1] when this occurs.',$address).'<br />';
573: }
574: if ($warning) {
575: $output .= '<span class="LC_warning">'.$warning.'</span><br />';
576: }
577:
578: if ($selfenroll_notifylist) {
579: my $fullname = &Apache::loncommon::plainname($uname,$udom);
580: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'_'.$cnum);
581: my $coursedesc = $courseinfo{'description'};
582: &send_notification($selfenroll_notifylist,$fullname,$cdom.
583: '_'.$cnum,$coursedesc,$now,'request',$owner);
584: }
585: } else {
586: $output = '<span class="LC_error">'.&mt('An error occurred when recording your request.').'</span>';
587:
588: }
589: }
590: return $output;
591: }
592:
593: sub send_notification {
594: my ($notifylist,$textstr,$cid,$coursedesc,$timestamp,$context,$sender,
595: $approvedlist,$rejectedlist) = @_;
596: # FIXME locallocaltime needs to be able to take $sender_lh as an argument
597: # so this can be localized to the recipients date display format/time zone
598: $timestamp =&Apache::lonlocal::locallocaltime($timestamp);
599: my $msgcc;
600: my ($rawsubj,@rawmsg,$subject,$message,$namelink);
601: $namelink = &Apache::loncommon::aboutmewrapper(
602: &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'}));
603: if ($context eq 'managers') {
604: $rawsubj = 'Self-enrollment requests processed';
605: push(@rawmsg,{
606: mt => 'Enrollment requests in the following course: [_1] have been processed.',
607: args => ["\n$coursedesc\n"],
608: });
609: } elsif ($context eq 'enroller') {
610: $rawsubj = 'Enrollment request';
611: push(@rawmsg,{
612: mt => 'Your request for enrollment in the following course: [_1], requested on [_2], has been reviewed by a Course Coordinator.',
613: args => ["\n$coursedesc\n","$timestamp\n"],
614:
615: });
616: if (ref($textstr) eq 'ARRAY') {
617: push(@rawmsg,@{$textstr});
618: }
619: } else {
620: $rawsubj = 'Self-enrollment request';
621: push(@rawmsg,{
622: mt => 'Enrollment in the following course: [_1] was requested by [_2] on [_3].',
623: args => ["\n$coursedesc\n",$textstr,$timestamp],
624: },
625: {
626: mt =>'As Course Coordinator, use: [_1]Main Menu -> Manage Couse Users -> Enrollment Requests[_1] to display a list of pending enrollment requests,[_1] which you can either approve or reject.',
627: args => ["\n"],
628: });
629: }
630: my @to_notify = split(/,/,$notifylist);
631: my $numsent = 0;
632: my @recusers;
633: my @recudoms;
634: foreach my $cc (@to_notify) {
635: my ($ccname,$ccdom) = split(/:/,$cc);
636: if (!exists($msgcc->{$ccname.':'.$ccdom})) {
637: push(@recusers,$ccname);
638: push(@recudoms,$ccdom);
639: $msgcc->{$ccname.':'.$ccdom}='';
640: $numsent ++;
641: }
642: }
643: my %reciphash = (
644: cc => $msgcc,
645: );
646: my ($uname,$udom);
647: if ($sender =~ /:/) {
648: ($uname,$udom) = split(/:/,$sender);
649: } else {
650: $uname = $sender;
651: my %courseinfo = &Apache::lonnet::coursedescription($cid);
652: $udom = $courseinfo{'num'};
653: }
654: my %sentmessage;
655: my $stamp = time;
656: my $msgcount = &Apache::lonmsg::get_uniq();
657: my $sender_lh = &Apache::loncommon::user_lang($uname,$udom,$cid);
658: $subject = &Apache::lonlocal::mt_user($sender_lh,$rawsubj);
659: $message = '';
660: foreach my $item (@rawmsg) {
661: if (ref($item) eq 'HASH') {
662: $message .= &Apache::lonlocal::mt_user($sender_lh,$item->{mt},@{$item->{args}})."\n";
663: }
664: }
665: &Apache::lonmsg::process_sent_mail($subject,'',$numsent,$stamp,$uname,$udom,$msgcount,$cid,$$,$message,\@recusers,\@recudoms);
666: my ($recipid,$recipstatus) =
667: &Apache::lonmsg::store_recipients($subject,$uname,$udom,\%reciphash);
668: foreach my $recip (sort(keys(%{$msgcc}))) {
669: my ($ccname,$ccdom) = split(/:/,$recip);
670: my $recip_lh = &Apache::loncommon::user_lang($ccname,$ccdom,$cid);
671: my $subject = &Apache::lonlocal::mt_user($sender_lh,$rawsubj);
672: my $message = '';
673: foreach my $item (@rawmsg) {
674: if (ref($item) eq 'HASH') {
675: $message .= &Apache::lonlocal::mt_user($sender_lh,$item->{mt},
676: @{$item->{args}})."\n";
677: }
678: }
679: if ($context eq 'managers') {
680: if ($approvedlist) {
681: $message .= "\n\n".&Apache::lonlocal::mt_user($sender_lh,'Approved enrollments:')."\n".$approvedlist;
682: }
683: if ($rejectedlist) {
684: $message .= "\n\n".&Apache::lonlocal::mt_user($sender_lh,'Rejected enrollments:')."\n".$rejectedlist;
685: }
686: }
687: my $status = &Apache::lonmsg::user_normal_msg($ccname,$ccdom,$subject,$message,undef,undef,undef,1,\%sentmessage,undef,undef,undef,1,$recipid);
688: }
689: }
690:
691: sub jump_to_role {
692: my ($role) = @_;
693: my $output = <<"END";
694: <script type="text/javascript">
695: function SelectRole() {
696: document.rolechoice.selectrole.value = '1';
697: document.rolechoice.submit();
698: }
699: </script>
700: END
701: $output .= '<a href="javascript:SelectRole()">'."\n".
702: &mt('Enter course now').'</a>'."\n".
703: '<form name="rolechoice" action="/adm/roles" method="post">'."\n".
704: '<input type="hidden" name="selectrole" value="" />'."\n".
705: '<input type="hidden" name="'.$role.'" value="1" />'."\n".
706: '</form>';
707: return $output;
708: }
709:
710: sub get_selfenroll_filters {
711: my ($selfenroll_types,$domain) = @_;
712: my (%enrolltypes,%longtypes,$alldoms);
713: my @selfenrolldoms = split(/;/,$selfenroll_types);
714: foreach my $item (@selfenrolldoms) {
715: my ($selfdom,$type_str) = split(/:/,$item);
716: if ($selfdom eq '*') {
717: $alldoms = 1;
718: last;
719: }
720: if ($domain ne '') {
721: next if ($selfdom ne $domain);
722: }
723: if ($selfdom =~ /^$match_domain$/) {
724: if (&Apache::lonnet::domain($selfdom) ne '') {
725: my @types = split(/,/,$type_str);
726: my @unesc_types = map { &unescape($_); } @types;
727: my ($othertitle,$usertypes,$types) =
728: &Apache::loncommon::sorted_inst_types($selfdom);
729: if (ref($usertypes) eq 'HASH') {
730: my $anytype = 1;
731: foreach my $key (keys(%{$usertypes})) {
732: if (!grep(/^\Q$key\E$/,@unesc_types)) {
733: $anytype = 0;
734: last;
735: }
736: }
737: if ($anytype) {
738: if (!(grep(/^other$/,@types))) {
739: $anytype = 0;
740: }
741: }
742: $usertypes->{'any'} = &mt('Any users');
743: $usertypes->{'other'} = &mt('Others');
744: my @showtypes;
745: if ($anytype) {
746: @{$enrolltypes{$selfdom}} = ('any');
747: @showtypes = ('any');
748: } else {
749: @{$enrolltypes{$selfdom}} = @types;
750: @showtypes = @unesc_types;
751: }
752: @{$longtypes{$selfdom}} =
753: map {$usertypes->{$_}} @showtypes;
754: }
755: }
756: }
757: }
758: return (\%enrolltypes,\%longtypes,$alldoms);
759: }
760:
761: sub print_selfenroll_types {
762: my ($longtypes,$domain) = @_;
763: my $output;
764: if (ref($longtypes) eq 'HASH') {
765: if ($domain ne '') {
766: my $domdesc = &Apache::lonnet::domain($domain,'description');
767: if (ref($longtypes->{$domain}) eq 'ARRAY') {
768: if (grep(/^any$/,@{$longtypes->{$domain}})) {
769: $output = &mt('Self-enrollment in this course is available to any user affiliated with [_1].',$domdesc);
770: } else {
771: my $status_str = join(', ',@{$longtypes->{$domain}});
772: $output = &mt('Self-enrollment in this course is only available to users affiliated with [_1] who have the following status: "[_2]".',$domdesc,$status_str);
773: }
774: } else {
775: $output = &mt('Self-enrollment is not currently available for this course for users affiliated with [_1].',$domdesc);
776: }
777: } elsif (keys(%{$longtypes}) > 0) {
778: $output = &mt('Self-enrollment in this course is only available to users affiliated with the following institutions, and who have the required status:').' <ul>'."\n";
779: foreach my $selfdom (sort(keys(%{$longtypes}))) {
780: my $selfdomdesc = &Apache::lonnet::domain($selfdom,'description');
781: if (ref($longtypes->{$selfdom}) eq 'ARRAY') {
782: $output .= '<li>'.$selfdomdesc.': '.join(', ',@{$longtypes->{$selfdom}}).'</li>'."\n";
783: }
784: }
785: $output .= '</ul>'."\n";
786: } else {
787: $output = &mt('Self-enrollment is not currently available for this course.');
788: }
789: }
790: return $output;
791: }
792:
793: sub check_registered {
794: my ($cdom,$cnum) = @_;
795: my ($registered,$instsec,$message);
796: my %settings = &Apache::lonnet::get('environment',['internal.coursecode',
797: 'internal.sectionnums',
798: 'internal.crosslistings'],$cdom,$cnum);
799: my (@allcourses,%LC_code,%affiliates,%reply);
800: &Apache::loncommon::get_institutional_codes(\%settings,\@allcourses,\%LC_code);
801: if (@allcourses > 0) {
802: @{$affiliates{$cnum}} = @allcourses;
803: my $outcome = &Apache::lonnet::fetch_enrollment_query('updatenow',\%affiliates,\%reply,$cdom,$cnum);
804: if ($outcome eq 'ok') {
805: if ($reply{$cnum} > 0) {
806: foreach my $class (@allcourses) {
807: my %enrolled;
808: my $dir = $Apache::lonnet::perlvar{'lonDaemons'};
809: my %place = &LONCAPA::Enrollment::place_hash();
810: &LONCAPA::Enrollment::parse_classlist($dir,$cdom,$cnum,$class,
811: \%place,$LC_code{$class},\%enrolled);
812: if (defined($enrolled{$env{'user.name'}})) {
813: $registered = 1;
814: $instsec = $LC_code{$class};
815: last;
816: }
817: }
818: } else {
819: $message = &mt('Your registration status could not be verified.');
820: }
821: } else {
822: $message = &mt('Your registration status could not determined, because a problem occurred retrieving data.');
823: }
824: } else {
825: $message = &mt('As no institutional course sections are currently associated with this course, your registration status is undetermined.');
826: }
827: return ($registered,$instsec,$message);
828: }
829:
830: 1;
831:
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