Annotation of loncom/interface/selfenroll.pm, revision 1.26
1.1 raeburn 1: # The LearningOnline Network
2: # Allow users to self-enroll in a course
3: #
1.26 ! droeschl 4: # $Id: selfenroll.pm,v 1.25 2010/01/16 16:13:42 raeburn Exp $
1.1 raeburn 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;
1.10 raeburn 36: use Apache::createaccount;
1.21 raeburn 37: use Apache::loncoursequeueadmin;
1.1 raeburn 38: use LONCAPA qw(:DEFAULT :match);
39:
40: sub handler {
41: my $r = shift;
42: &Apache::loncommon::content_type($r,'text/html');
43: $r->send_http_header;
44: if ($r->header_only) {
45: return OK;
46: }
47: my $handle = &Apache::lonnet::check_for_valid_session($r);
48: my $lonidsdir=$r->dir_config('lonIDsDir');
1.10 raeburn 49: my $lonhost = $r->dir_config('lonHostID');
1.1 raeburn 50: if ($handle ne '') {
51: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
52: }
53: &Apache::lonacc::get_posted_cgi($r);
54: &Apache::lonlocal::get_language_handle($r);
1.12 raeburn 55: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['courseid']);
56: my $js = &Apache::createaccount::catreturn_js();
57: my ($coursechk,$courseid) = &validate_course_id($env{'form.courseid'});
1.1 raeburn 58: if ($coursechk ne 'ok') {
1.12 raeburn 59: &page_header($r,$courseid,$js);
1.9 raeburn 60: $r->print('<h3>'.&mt('Self-enrollment error').'</h3>'.
1.10 raeburn 61: '<span class="LC_error">'.
62: &mt('Invalid domain or course number').'</span>');
1.12 raeburn 63: &page_footer($r);
1.1 raeburn 64: return OK;
65: }
1.10 raeburn 66: my $now = time;
67: if ($env{'form.phase'} eq 'login') {
1.12 raeburn 68: $js .= "\n".&Apache::createaccount::javascript_setforms($now);
1.10 raeburn 69: }
1.12 raeburn 70: my %coursehash = &Apache::lonnet::coursedescription($courseid);
71: my $cdom = $coursehash{'domain'};
72: my $cnum = $coursehash{'num'};
73: my $desc = $coursehash{'description'};
74: &page_header($r,$courseid,$js,$desc);
1.10 raeburn 75: my $include = $r->dir_config('lonIncludes');
76: if ($env{'form.phase'} eq 'login') {
77: my $jsh=Apache::File->new($include."/londes.js");
78: $r->print(<$jsh>);
79: }
1.12 raeburn 80: my ($canenroll,$selfenroll_types,$selfenroll_registered,@cancreate,
81: $knownuser,$selfenroll_access_start,$selfenroll_access_end,
1.15 raeburn 82: $selfenroll_section,$selfenroll_future,%curr_role,$cdomdesc,
83: $selfenroll_approval,$selfenroll_limit,$selfenroll_cap,
84: $selfenroll_notifylist,$owner);
1.1 raeburn 85: $selfenroll_types = $coursehash{'internal.selfenroll_types'};
86: $selfenroll_registered = $coursehash{'internal.selfenroll_registered'};
87: $selfenroll_section = $coursehash{'internal.selfenroll_section'};
88: $selfenroll_access_start = $coursehash{'internal.selfenroll_start_access'};
89: $selfenroll_access_end = $coursehash{'internal.selfenroll_end_access'};
1.15 raeburn 90: $selfenroll_limit = $coursehash{'internal.selfenroll_limit'};
91: $selfenroll_cap = $coursehash{'internal.selfenroll_cap'};
92: $selfenroll_approval = $coursehash{'internal.selfenroll_approval'};
93: $selfenroll_notifylist = $coursehash{'internal.selfenroll_notifylist'};
94: $owner = $coursehash{'internal.courseowner'};
95: my $nospace;
1.1 raeburn 96: if ($selfenroll_types ne '') {
97: my $start = $coursehash{'internal.selfenroll_start_date'};
98: my $end = $coursehash{'internal.selfenroll_end_date'};
1.9 raeburn 99: if (($start > 0 && $start < $now) && (($end == 0) || ($end > 0 && $end > $now))) {
1.15 raeburn 100: if (($selfenroll_limit eq 'allstudents') ||
101: ($selfenroll_limit eq 'selfenroll')) {
102: $nospace =
103: &enrollment_limit_check($selfenroll_limit,$selfenroll_cap,
104: $cdom,$cnum);
105: if (!$nospace) {
106: $canenroll = 1;
107: }
108: } else {
109: $canenroll = 1;
110: }
1.9 raeburn 111: } elsif (($end == 0) || ($end > 0 && $end > $now)) {
112: if ($start > $now) {
1.15 raeburn 113: if (($selfenroll_limit eq 'allstudents') ||
114: ($selfenroll_limit eq 'selfenroll')) {
115: $nospace =
116: &enrollment_limit_check($selfenroll_limit,$cdom,$cnum);
117: }
118: if (!$nospace) {
119: $selfenroll_future = &Apache::lonlocal::locallocaltime($start);
120: }
1.9 raeburn 121: }
1.1 raeburn 122: }
123: }
1.9 raeburn 124: $knownuser = &user_is_known();
1.1 raeburn 125: if (!$canenroll) {
1.9 raeburn 126: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3><span class="LC_warning">'.
127: &mt('Self-enrollment is not currently available for this course.').
128: '</span><br /><br />');
1.15 raeburn 129: if ($nospace) {
130: if ($selfenroll_limit eq 'allstudents') {
131: $r->print(&mt('The enrollment limit of [quant,_1,student] has been reached.',$selfenroll_cap));
132: } else {
133: $r->print(&mt('The enrollment limit of [quant,_1,self-enrolled student] has been reached.',$selfenroll_cap));
134:
135: }
136: }
1.9 raeburn 137: if ($selfenroll_types ne '') {
138: if ($selfenroll_future ne '') {
139: if ($selfenroll_types eq '*') {
140: $r->print(&mt('Self-enrollment will become available starting [_1], and will be available to all LON-CAPA users.',$selfenroll_future).'<br />');
141: } else {
142: my ($enrolltypes,$longtypes,$alldoms);
143: if ($knownuser) {
144: &get_selfenroll_filters($selfenroll_types,$env{'user.domain'});
145: my $domdesc = &Apache::lonnet::domain($env{'user.domain'},'description');
146: if (ref($enrolltypes) eq 'HASH') {
147: if (ref($enrolltypes->{$env{'user.domain'}}) eq 'ARRAY') {
148: if (grep(/^any$/,@{$enrolltypes->{$env{'user.domain'}}})) {
149: $r->print(&mt('Self-enrollment will become available starting [_1], and will be available to all LON-CAPA users at your institution ([_2]).',
150: $selfenroll_future,$domdesc).'<br />');
151:
152: } else {
153: if (&user_can_selfenroll($env{'user.domain'},
154: $env{'user.name'},
155: $enrolltypes->{$env{'user.domain'}})) {
156: $r->print(&mt('Self-enrollment will become available starting [_1]; please enroll at that time.',$selfenroll_future));
157: } else {
158: $r->print(&mt('Although self-enrollment will become available starting [_1], you are ineligible for enrollment.',$selfenroll_future).'<br />');
159: $r->print(&print_selfenroll_types($longtypes,$env{'user.domain'}));
160: }
161: }
162: }
163: }
164: } else {
165: $r->print(&mt('Self-enrollment will become available starting [_1].',
166: $selfenroll_future).'<br />');
167: $r->print(&print_selfenroll_types($longtypes));
168: }
169: }
170: }
171: }
1.1 raeburn 172: }
173: if ($knownuser) {
174: foreach my $key (keys(%env)) {
175: if ($key =~ m-^user\.role\.st\./$cdom/$cnum/?(\w*)$-) {
176: my $sec = $1;
177: my ($start,$end) = split(/\./,$env{$key});
178: my $status = 'active';
179: if (($end) && ($end<=$now)) {
180: $status = 'previous';
181: }
182: if (($start) && ($now<$start)) {
183: $status = 'future';
184: }
185: if ($status eq 'active' || $status eq 'future') {
186: $curr_role{'status'} = $status;
187: $curr_role{'section'} = $sec;
1.7 raeburn 188: if ($curr_role{'section'} eq '') {
189: $curr_role{'section'} = &mt('none');
190: }
1.1 raeburn 191: $curr_role{'start'} = &Apache::lonlocal::locallocaltime($start);
192: $curr_role{'role'} = 'st./'.$cdom.'/'.$cnum;
193: if ($sec ne '') {
194: $curr_role{'role'} .= '/'.$sec;
195: }
196: }
197: }
198: }
199: }
200: if (!$canenroll) {
201: if (keys(%curr_role)) {
202: $r->print(&has_role(%curr_role));
203: }
1.12 raeburn 204: &page_footer($r);
1.1 raeburn 205: return OK;
206: }
1.3 raeburn 207: @cancreate = &can_create($cdom);
1.12 raeburn 208: my ($form,$login_path,$firsturl,$create_path,$sso_url,$missing_formitem);
209: $form = 'logmein';
1.1 raeburn 210: $login_path = '/adm/login';
1.12 raeburn 211: $firsturl= '/adm/selfenroll?courseid='.$courseid;
1.1 raeburn 212: $create_path = '/adm/createaccount';
213: $sso_url = $r->dir_config('lonSSOReloginServer');
214: if ($sso_url eq '') {
215: $sso_url = $login_path;
216: }
1.11 raeburn 217: $missing_formitem = &mt('The link to the requested page could not be followed.')."\\n".&mt('The placeholder for the courseID is absent.');
1.1 raeburn 218: if ($knownuser) {
219: if (keys(%curr_role)) {
1.9 raeburn 220: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3>'.
221: '<span class="LC_warning">'.&has_role(%curr_role).'</span>');
1.12 raeburn 222: &page_footer($r);
1.1 raeburn 223: return OK;
224: }
225: &process_self_enroll($r,$cdom,$cnum,$selfenroll_types,$selfenroll_registered,
226: $selfenroll_access_start,$selfenroll_access_end,
1.15 raeburn 227: $selfenroll_section,$now,$selfenroll_approval,
228: $selfenroll_notifylist,$owner);
1.10 raeburn 229: } elsif ($env{'form.phase'} eq 'login') {
230: my $submit_text = &mt('Log in');
231: $r->print('<h3>'.&mt('Log-in to LON-CAPA').'</h3>');
232: my $udom = &Apache::lonnet::default_login_domain();
1.12 raeburn 233: $r->print(&Apache::createaccount::login_box($now,$lonhost,$courseid,
1.10 raeburn 234: $submit_text,$udom,'selfenroll'));
1.12 raeburn 235: $r->print(&mt('You will be able to self-enroll in the course you selected ([_1]) after you have successfully logged in.','<b>'.$desc.'</b>'));
236: &page_footer($r);
1.10 raeburn 237: return OK;
1.3 raeburn 238: } elsif (@cancreate > 0) {
1.1 raeburn 239: $r->print(<<END);
240: <script type="text/javascript">
1.12 raeburn 241: function setPath(formname,formaction,item,arg) {
242: var formidx = getFormByName(formname);
243: if (formidx > -1) {
244: if (formaction != '') {
245: document.forms[formidx].action = formaction;
246: }
247: var itemid = getIndexByName(formidx,'setting');
248: if (itemid > -1) {
249: document.forms[formidx].elements[itemid].name = item;
250: document.forms[formidx].elements[itemid].value = arg;
251: document.forms[formidx].submit();
252: } else {
253: alert("$missing_formitem");
254: }
1.1 raeburn 255: }
256: return;
257: }
258:
259: </script>
260: END
1.9 raeburn 261: $r->print('<h3>'.&mt('LON-CAPA account required').'</h3>'.
1.12 raeburn 262: &mt('You need to be logged into LON-CAPA to self-enroll in a course.').'<ul><li>'.&mt('If you have an account in LON-CAPA, [_1]log-in[_2].','<a href="javascript:setPath('."'$form','','phase','login'".')">','</a>').'</li>');
1.3 raeburn 263: if (@cancreate > 1) {
264: $r->print('<li>'.&mt('Otherwise:').'<br />');
265: my $count = 0;
266: foreach my $type ('sso','login','email') {
1.4 raeburn 267: if (($count > 0) && ($count <@cancreate)) {
1.3 raeburn 268: $r->print(' , '.&mt('or').'<br />');
269: }
270: if (grep(/^$type$/,@cancreate)) {
271: if ($type eq 'sso') {
1.12 raeburn 272: $r->print(' '.&mt("if you have an institutional log-in, use your institution's [_1]single sign on page[_2] to log-in, then create an account",'<a href="javascript:setPath('."'$form','$sso_url','firsturl','$firsturl'".')">','</a>'));
1.3 raeburn 273: } elsif ($type eq 'login') {
1.12 raeburn 274: $r->print(' '.&mt('if you have an institutional login, [_1]create an account[_2]','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
1.3 raeburn 275: } elsif ($type eq 'email') {
1.12 raeburn 276: $r->print(' '.&mt('you can use an e-mail address to [_1]create an account[_2]','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
1.3 raeburn 277: }
278: $count ++;
279: }
280: }
281: $r->print('.<br />');
282: } else {
283: if ($cancreate[0] eq 'login') {
1.12 raeburn 284: $r->print('<li>'.&mt('Otherwise, if you have an institutional login, [_1]create an account[_2].','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
1.3 raeburn 285: } elsif ($cancreate[0] eq 'email') {
1.12 raeburn 286: $r->print('<li>'.&mt('Otherwise, you will use an e-mail address to [_1]create an account[_2].','<a href="javascript:setPath('."'$form','$create_path','context','selfenroll_create'".')">','</a>'));
1.3 raeburn 287: } elsif ($cancreate[0] eq 'sso') {
1.12 raeburn 288: $r->print('<li>'.&mt("Otherwise, use your institution's [_1]single sign on page[_2] to log-in, then create an account.",'<a href="javascript:setPath('."'$form','$sso_url','firsturl','$firsturl'".')">','</a>'));
1.3 raeburn 289: }
1.1 raeburn 290: }
291: if ($selfenroll_types eq '*') {
1.9 raeburn 292: $r->print('<br />'.&mt('You will be able to self enroll in this course once the account has been created.').'</li></ul>');
1.1 raeburn 293: } else {
294: $r->print('</li></ul>');
295: my ($enrolltypes,$longtypes,$alldoms) =
1.9 raeburn 296: &get_selfenroll_filters($selfenroll_types);
297: $r->print(&print_selfenroll_types($longtypes));
1.1 raeburn 298: }
299: } else {
1.9 raeburn 300: my $cdomdesc = &Apache::lonnet::domain($cdom,'description');
301: $r->print('<h3>'.&mt('LON-CAPA account required').'</h3>');
302: $r->print(&mt('You must [_1]log-in[_2] to LON-CAPA with an existing account to be able to enroll in this course, as account creation at this institution ([_3]) is not permitted when self-enrolling.','<a href="'.$login_path.'">','</a>',$cdomdesc));
1.1 raeburn 303: if ($selfenroll_types ne '*') {
304: my ($enrolltypes,$longtypes,$alldoms) =
305: &get_selfenroll_filters($selfenroll_types);
1.9 raeburn 306: $r->print('<br />'.&print_selfenroll_types($longtypes));
1.1 raeburn 307: }
1.9 raeburn 308: my $displayurl = &escape($firsturl);
309: $r->print(&mt('Submit a request to the LON-CAPA [_1]helpdesk[_2] for [_3] if you require assistance.','<a href="/adm/helpdesk?origurl='.$displayurl.'">','</a>',$cdomdesc));
1.1 raeburn 310: }
1.12 raeburn 311: $r->print("\n".'<form name="'.$form.'" method="post" action="">'."\n".
312: '<input type="hidden" name="courseid" value="'.$courseid.'" />'."\n".
1.1 raeburn 313: '<input type="hidden" name="setting" value=""/>'."\n".
1.12 raeburn 314: &Apache::lonhtmlcommon::echo_form_input(['backto','courseid','context','phase'])."\n".
315: '</form>'."\n");
316: &page_footer($r);
1.1 raeburn 317: return OK;
318: }
319:
1.15 raeburn 320: sub enrollment_limit_check {
321: my ($selfenroll_limit,$selfenroll_cap,$cdom,$cnum) = @_;
322: my $nospace = 0;
323: my (%idx,%stucount);
324: my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
325: $idx{'type'} = &Apache::loncoursedata::CL_TYPE();
326: $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
327: while (my ($student,$data) = each(%$classlist)) {
328: if (($data->[$idx{'status'}] eq 'Active') ||
329: ($data->[$idx{'status'}] eq 'Future')) {
330: if ($data->[$idx{'type'}] eq 'selfenroll') {
331: $stucount{'selfenroll'} ++;
332: }
333: $stucount{'allstudents'} ++;
334: }
335: }
336: if ($stucount{$selfenroll_limit} >= $selfenroll_cap) {
337: $nospace = 1;
338: }
339: return $nospace;
340: }
341:
1.10 raeburn 342: sub page_header {
1.12 raeburn 343: my ($r,$courseid,$js,$desc) = @_;
1.10 raeburn 344: my $start_page =
1.26 ! droeschl 345: &Apache::loncommon::start_page('Self-enroll in a LON-CAPA course',$js);
1.10 raeburn 346: $r->print($start_page);
347: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.12 raeburn 348: &Apache::createaccount::selfenroll_crumbs($r,$courseid,$desc);
1.10 raeburn 349: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Self-enroll in course'));
350: return;
351: }
352:
1.12 raeburn 353: sub page_footer {
354: my ($r) = @_;
355: $r->print('<form name="backupcrumbs" method="post" action="/adm/coursecatalog">'."\n".
356: &Apache::lonhtmlcommon::echo_form_input(['backto','courseid','phase','context']).
357: '</form>'.&Apache::loncommon::end_page());
358: return;
359: }
360:
1.1 raeburn 361: sub validate_course_id {
1.12 raeburn 362: my ($courseid) = @_;
363: my ($cdom,$cnum) = ($env{'form.courseid'} =~ /^($match_domain)_($match_courseid)$/);
1.1 raeburn 364: if ($cdom ne '' && $cnum ne '') {
365: if (&Apache::lonnet::is_course($cdom,$cnum)) {
1.12 raeburn 366: return ('ok',$courseid);
1.1 raeburn 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) = @_;
1.3 raeburn 383: my @cancreate;
1.1 raeburn 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') {
1.3 raeburn 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: }
1.1 raeburn 396: }
397: }
398: }
1.3 raeburn 399: return @cancreate;
1.1 raeburn 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'});
1.18 bisitz 407: $output = &mt('You already have an active student role (section: "[_1]") in this course.',$curr_role{'section'}).'<br />'.$rolelink;
1.1 raeburn 408: } elsif ($curr_role{'status'} eq 'future') {
1.9 raeburn 409: $output = &mt('You have a student role (section: "[_1]") in this course which will become active [_2].',$curr_role{'section'},$curr_role{'start'});
1.1 raeburn 410: }
411: return $output;
412: }
413:
414: sub process_self_enroll {
415: my ($r,$cdom,$cnum,$selfenroll_types,$selfenroll_registered,
1.15 raeburn 416: $selfenroll_access_start,$selfenroll_access_end,$selfenroll_section,
417: $now,$selfenroll_approval,$selfenroll_notifylist,$owner) = @_;
1.1 raeburn 418: my $udom = $env{'user.domain'};
419: my $uname = $env{'user.name'};
420: my $selfenroll = 0;
1.9 raeburn 421: my ($enrolltypes,$longtypes,$alldoms);
422: if ($selfenroll_types eq '*') {
1.1 raeburn 423: $selfenroll = 1;
1.9 raeburn 424: } else {
425: ($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->{$udom});
1.1 raeburn 435: }
436: }
437: }
438: }
439: if ($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) {
1.9 raeburn 448: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3>'.&mt('Self-enrollment is restricted to students officially registered for this course.').'<br />');
1.1 raeburn 449: if ($message) {
450: $r->print($message);
451: } else {
452: $r->print(&mt('As you are not currently registered for this course, self-enrollment is unavailable.'));
453: }
454: return;
455: }
456: }
1.15 raeburn 457: if ($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);
1.23 raeburn 478: &Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups);
1.15 raeburn 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.'));
1.1 raeburn 484: } else {
1.15 raeburn 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);
1.1 raeburn 498: }
499: }
1.15 raeburn 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: }
1.1 raeburn 506: }
507: }
508: } else {
1.9 raeburn 509: $r->print('<h3>'.&mt('Self-enrollment unavailable').'</h3>'.
510: &mt('You are not permitted to enroll yourself in this course.').'<br />');
1.1 raeburn 511: $r->print(&print_selfenroll_types($longtypes));
512: }
513: return;
514: }
515:
1.9 raeburn 516: sub user_can_selfenroll {
517: my ($udom,$uname,$domenrolltypes) = @_;
518: my $selfenroll = 0;
1.13 raeburn 519: my %userhash = &Apache::lonnet::userenvironment($udom,$uname,'inststatus');
1.9 raeburn 520: my @inststatuses;
521: if ($userhash{'inststatus'} eq '') {
522: push(@inststatuses,'other');
523: } else {
1.13 raeburn 524: @inststatuses = split(':',$userhash{'inststatus'});
1.9 raeburn 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 $selfenroll;
535: }
536:
1.15 raeburn 537: sub store_selfenroll_request {
538: my ($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}) {
1.24 raeburn 545: $output = &mt('A self-enrollment request already exists for you for this course.').'<br />'.&mt('Your earlier request is in a queue awaiting action by a Course Coordinator.').
546: '<br /><br />'.&Apache::loncoursequeueadmin::queued_selfenrollment();
1.15 raeburn 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') {
1.16 raeburn 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: }
1.15 raeburn 564: $output = &mt('Your request for self-enrollment has been recorded.').'<br />'.
1.19 truskell 565: &mt('A message will be sent to your LON-CAPA account when the course coordinator takes action on your request.').'<br />'.
1.20 bisitz 566: &mt('To access your LON-CAPA message, go to the Main Menu and click on "Send and Receive Messages".').'<br />';
1.15 raeburn 567: my %emails = &Apache::loncommon::getemails($uname,$udom);
568: if (($emails{'permanentemail'} ne '') || ($emails{'notification'} ne '')) {
569: my $address = $emails{'permanentemail'};
570: if ($address eq '') {
571: $address = $emails{'notification'};
572: }
1.16 raeburn 573: $output.= &mt('An e-mail will also be sent to: [_1] when this occurs.',$address).'<br />';
574: }
575: if ($warning) {
576: $output .= '<span class="LC_warning">'.$warning.'</span><br />';
1.15 raeburn 577: }
1.24 raeburn 578:
1.25 raeburn 579: $output .= &Apache::loncoursequeueadmin::queued_selfenrollment();
1.24 raeburn 580:
1.15 raeburn 581: if ($selfenroll_notifylist) {
582: my $fullname = &Apache::loncommon::plainname($uname,$udom);
583: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'_'.$cnum);
584: my $coursedesc = $courseinfo{'description'};
1.22 raeburn 585: &Apache::loncoursequeueadmin::send_selfserve_notification(
1.21 raeburn 586: $selfenroll_notifylist,$fullname,$cdom.'_'.$cnum,
587: $coursedesc,$now,'selfenrollreq',$owner);
1.15 raeburn 588: }
589: } else {
590: $output = '<span class="LC_error">'.&mt('An error occurred when recording your request.').'</span>';
591:
592: }
593: }
594: return $output;
595: }
596:
1.1 raeburn 597: sub jump_to_role {
598: my ($role) = @_;
599: my $output = <<"END";
600: <script type="text/javascript">
601: function SelectRole() {
602: document.rolechoice.selectrole.value = '1';
603: document.rolechoice.submit();
604: }
605: </script>
606: END
607: $output .= '<a href="javascript:SelectRole()">'."\n".
608: &mt('Enter course now').'</a>'."\n".
1.9 raeburn 609: '<form name="rolechoice" action="/adm/roles" method="post">'."\n".
1.1 raeburn 610: '<input type="hidden" name="selectrole" value="" />'."\n".
611: '<input type="hidden" name="'.$role.'" value="1" />'."\n".
612: '</form>';
613: return $output;
614: }
615:
616: sub get_selfenroll_filters {
617: my ($selfenroll_types,$domain) = @_;
618: my (%enrolltypes,%longtypes,$alldoms);
619: my @selfenrolldoms = split(/;/,$selfenroll_types);
620: foreach my $item (@selfenrolldoms) {
621: my ($selfdom,$type_str) = split(/:/,$item);
622: if ($selfdom eq '*') {
623: $alldoms = 1;
624: last;
625: }
626: if ($domain ne '') {
627: next if ($selfdom ne $domain);
628: }
629: if ($selfdom =~ /^$match_domain$/) {
630: if (&Apache::lonnet::domain($selfdom) ne '') {
631: my @types = split(/,/,$type_str);
1.13 raeburn 632: my @unesc_types = map { &unescape($_); } @types;
1.1 raeburn 633: my ($othertitle,$usertypes,$types) =
634: &Apache::loncommon::sorted_inst_types($selfdom);
635: if (ref($usertypes) eq 'HASH') {
1.9 raeburn 636: my $anytype = 1;
637: foreach my $key (keys(%{$usertypes})) {
1.13 raeburn 638: if (!grep(/^\Q$key\E$/,@unesc_types)) {
1.9 raeburn 639: $anytype = 0;
640: last;
641: }
642: }
643: if ($anytype) {
644: if (!(grep(/^other$/,@types))) {
645: $anytype = 0;
646: }
647: }
648: $usertypes->{'any'} = &mt('Any users');
649: $usertypes->{'other'} = &mt('Others');
1.13 raeburn 650: my @showtypes;
1.9 raeburn 651: if ($anytype) {
652: @{$enrolltypes{$selfdom}} = ('any');
1.13 raeburn 653: @showtypes = ('any');
1.9 raeburn 654: } else {
655: @{$enrolltypes{$selfdom}} = @types;
1.13 raeburn 656: @showtypes = @unesc_types;
1.9 raeburn 657: }
658: @{$longtypes{$selfdom}} =
1.13 raeburn 659: map {$usertypes->{$_}} @showtypes;
1.1 raeburn 660: }
661: }
662: }
663: }
664: return (\%enrolltypes,\%longtypes,$alldoms);
665: }
666:
667: sub print_selfenroll_types {
668: my ($longtypes,$domain) = @_;
669: my $output;
670: if (ref($longtypes) eq 'HASH') {
1.9 raeburn 671: if ($domain ne '') {
672: my $domdesc = &Apache::lonnet::domain($domain,'description');
673: if (ref($longtypes->{$domain}) eq 'ARRAY') {
674: if (grep(/^any$/,@{$longtypes->{$domain}})) {
675: $output = &mt('Self-enrollment in this course is available to any user affiliated with [_1].',$domdesc);
676: } else {
677: my $status_str = join(', ',@{$longtypes->{$domain}});
678: $output = &mt('Self-enrollment in this course is only available to users affiliated with [_1] who have the following status: "[_2]".',$domdesc,$status_str);
1.1 raeburn 679: }
680: } else {
1.9 raeburn 681: $output = &mt('Self-enrollment is not currently available for this course for users affiliated with [_1].',$domdesc);
682: }
683: } elsif (keys(%{$longtypes}) > 0) {
1.12 raeburn 684: $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";
1.9 raeburn 685: foreach my $selfdom (sort(keys(%{$longtypes}))) {
686: my $selfdomdesc = &Apache::lonnet::domain($selfdom,'description');
687: if (ref($longtypes->{$selfdom}) eq 'ARRAY') {
1.12 raeburn 688: $output .= '<li>'.$selfdomdesc.': '.join(', ',@{$longtypes->{$selfdom}}).'</li>'."\n";
1.1 raeburn 689: }
690: }
1.12 raeburn 691: $output .= '</ul>'."\n";
1.1 raeburn 692: } else {
1.5 bisitz 693: $output = &mt('Self-enrollment is not currently available for this course.');
1.1 raeburn 694: }
695: }
696: return $output;
697: }
698:
699: sub check_registered {
700: my ($cdom,$cnum) = @_;
701: my ($registered,$instsec,$message);
702: my %settings = &Apache::lonnet::get('environment',['internal.coursecode',
703: 'internal.sectionnums',
704: 'internal.crosslistings'],$cdom,$cnum);
705: my (@allcourses,%LC_code,%affiliates,%reply);
706: &Apache::loncommon::get_institutional_codes(\%settings,\@allcourses,\%LC_code);
707: if (@allcourses > 0) {
708: @{$affiliates{$cnum}} = @allcourses;
709: my $outcome = &Apache::lonnet::fetch_enrollment_query('updatenow',\%affiliates,\%reply,$cdom,$cnum);
710: if ($outcome eq 'ok') {
711: if ($reply{$cnum} > 0) {
712: foreach my $class (@allcourses) {
713: my %enrolled;
714: my $dir = $Apache::lonnet::perlvar{'lonDaemons'};
715: my %place = &LONCAPA::Enrollment::place_hash();
716: &LONCAPA::Enrollment::parse_classlist($dir,$cdom,$cnum,$class,
717: \%place,$LC_code{$class},\%enrolled);
718: if (defined($enrolled{$env{'user.name'}})) {
719: $registered = 1;
720: $instsec = $LC_code{$class};
721: last;
722: }
723: }
724: } else {
725: $message = &mt('Your registration status could not be verified.');
726: }
727: } else {
728: $message = &mt('Your registration status could not determined, because a problem occurred retrieving data.');
729: }
730: } else {
731: $message = &mt('As no institutional course sections are currently associated with this course, your registration status is undetermined.');
732: }
733: return ($registered,$instsec,$message);
734: }
735:
736: 1;
737:
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