1: # Automated Enrollment manager
2: # $Id: Enrollment.pm,v 1.19 2004/12/07 06:40:09 raeburn Exp $
3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26: package LONCAPA::Enrollment;
27:
28: use Apache::loncoursedata;
29: use Apache::lonnet;
30: use Apache::lonmsg;
31: use HTML::Entities;
32: use LONCAPA::Configuration;
33: use Time::Local;
34: use lib '/home/httpd/lib/perl';
35:
36: use strict;
37:
38: sub update_LC {
39: my ($dom,$crs,$adds,$drops,$startdate,$enddate,$authtype,$autharg,$classesref,$groupref,$logmsg,$newusermsg,$context) = @_;
40: # Get institutional code and title of this class
41: my %courseinfo = ();
42: &get_courseinfo($dom,$crs,\%courseinfo);
43: # Get current LON-CAPA student enrollment for this class
44: my $configvars = &LONCAPA::Configuration::read_conf('loncapa.conf');
45: my $cid = $dom."_".$crs;
46: my $roster = &Apache::loncoursedata::get_classlist($cid,$dom,$crs);
47: my $cend = &Apache::loncoursedata::CL_END;
48: my $cstart = &Apache::loncoursedata::CL_START;
49: my $stuid=&Apache::loncoursedata::CL_ID;
50: my $sec=&Apache::loncoursedata::CL_SECTION;
51: my $status=&Apache::loncoursedata::CL_STATUS;
52: my $type=&Apache::loncoursedata::CL_TYPE;
53: my $lockedtype=&Apache::loncoursedata::CL_LOCKEDTYPE;
54: my @localstudents = ();
55: my @futurestudents = ();
56: my @activestudents = ();
57: my @excludedstudents = ();
58: my $currlist;
59: foreach my $uname (keys %{$roster} ) {
60: if ($uname =~ m/^(.+):$dom$/) {
61: if ($$roster{$uname}[$status] eq "Active") {
62: push @activestudents, $1;
63: @{$$currlist{$1}} = @{$$roster{$uname}};
64: push @localstudents, $1;
65: } elsif ( ($$roster{$uname}[$cstart] > time) && ($$roster{$uname}[$cend] > time || $$roster{$uname}[$cend] == 0 || $$roster{$uname}[$cend] eq '') ) {
66: push @futurestudents, $1;
67: @{$$currlist{$1}} = @{$$roster{$uname}};
68: push @localstudents, $1;
69: } elsif ($$roster{$uname}[$lockedtype] == 1) {
70: push @excludedstudents, $1;
71: }
72: }
73: }
74: my $linefeed = '';
75: my $addresult = '';
76: my $dropresult = '';
77: if ($context eq "updatenow") {
78: $linefeed = "</li>\n<li>";
79: } elsif ($context eq "automated") {
80: $linefeed = "\n";
81: }
82: my $enrollcount = 0;
83: my $dropcount = 0;
84:
85: # Get role names
86: my %longroles = ();
87: open(FILE,"<$$configvars{'lonTabDir'}.'/rolesplain.tab");
88: my @rolesplain = <FILE>;
89: close(FILE);
90: foreach (@rolesplain) {
91: if ($_ =~ /^(st|ta|ex|ad|in|cc):([\w\s]+)$/) {
92: $longroles{$1} = $2;
93: }
94: }
95:
96: srand( time() ^ ($$ + ($$ << 15)) ); # Seed rand in case initial passwords have to be generated for new users.
97:
98: # Get mapping of IDs to usernames for current LON-CAPA student enrollment for this class
99: my @LCids = ();
100: my %unameFromLCid = ();
101: foreach my $uname (sort keys %{$currlist}) {
102: my $stuID = $$currlist{$uname}[$stuid];
103: if (!grep/^$stuID$/,@LCids) {
104: push @LCids, $stuID;
105: @{$unameFromLCid{$stuID}} = ();
106: }
107: push @{$unameFromLCid{$stuID}},$uname;
108: }
109:
110: # Get latest institutional enrollment for this class.
111: my %allenrolled = ();
112: my @reg_students = ();
113: my %place = ();
114: $place{'autharg'} = &CL_autharg();
115: $place{'authtype'} = &CL_authtype();
116: $place{'email'} = &CL_email();
117: $place{'enddate'} = &CL_enddate();
118: $place{'firstname'} = &CL_firstname();
119: $place{'generation'} = &CL_generation();
120: $place{'groupID'} = &CL_groupID();
121: $place{'lastname'} = &CL_lastname();
122: $place{'middlename'} = &CL_middlename();
123: $place{'startdate'} = &CL_startdate();
124: $place{'studentID'} = &CL_studentID();
125: my %ucount = ();
126: my %enrollinfo = ();
127: foreach my $class (@{$classesref}) {
128: my %enrolled = ();
129: &parse_classlist($$configvars{'lonDaemons'},$dom,$crs,$class,\%place,$$groupref{$class},\%enrolled);
130: foreach my $uname (sort keys %enrolled ) {
131: if (!grep/^$uname$/,@reg_students) {
132: push @reg_students,$uname;
133: $ucount{$uname} = 0;
134: @{$allenrolled{$uname}} = ();
135: }
136: @{$allenrolled{$uname}[$ucount{$uname}]} = @{$enrolled{$uname}};
137: $ucount{$uname} ++;
138: }
139: }
140:
141: # Check for multiple sections for a single student
142: my @okusers = ();
143: foreach my $uname (@reg_students) {
144: if (grep/^$uname$/,@excludedstudents) {
145: $$logmsg .= "No re-enrollment for $uname - user was previously manually unenrolled and locked.".$linefeed;
146: } elsif (@{$allenrolled{$uname}} > 1) {
147: my @sections = ();
148: my $saved;
149: for (my $i=0; $i<@{$allenrolled{$uname}}; $i++) {
150: my @stuinfo = @{$allenrolled{$uname}[$i]};
151: my $secnum = $stuinfo[ $place{'groupID'} ];
152: unless ($secnum eq '') {
153: unless (grep/^$secnum$/,@sections) {
154: $saved = $i;
155: push @sections,$secnum;
156: }
157: }
158: }
159: if (@sections == 0) {
160: @{$enrollinfo{$uname}} = @{$allenrolled{$uname}[0]};
161: push @okusers, $uname;
162: }
163: elsif (@sections == 1) {
164: @{$enrollinfo{$uname}} = @{$allenrolled{$uname}[$saved]};
165: push @okusers, $uname;
166: }
167: elsif (@sections > 1) {
168: $$logmsg = "$uname appears in classlists for the more than one section of this course, i.e. in sections: ";
169: foreach (@sections) {
170: $$logmsg .= " $_,";
171: }
172: chop($$logmsg);
173: $$logmsg .= ". Because of this ambiguity, no enrollment action was taken for this student.".$linefeed;
174: }
175: } else {
176: @{$enrollinfo{$uname}} = @{$allenrolled{$uname}[0]};
177: push @okusers, $uname;
178: }
179: }
180: # Get mapping of student IDs to usernames for users in institutional data for this class
181: my @allINids = ();
182: my %unameFromINid = ();
183: foreach my $uname (@okusers) {
184: $enrollinfo{$uname}[ $place{'studentID'} ] =~ tr/A-Z/a-z/;
185: my $stuID = $enrollinfo{$uname}[ $place{'studentID'} ];
186: if (grep/^$stuID$/,@allINids) {
187: push @{$unameFromINid{$stuID}},$uname;
188: } else {
189: push @allINids, $stuID;
190: @{$unameFromINid{$stuID}} = $uname;
191: }
192: }
193: # Explicitly allow access to creation/modification of students if called as an automated process.
194: if ($context eq 'automated') {
195: $ENV{'allowed.cst'}='F';
196: }
197:
198: # Compare IDs with existing LON-CAPA enrollment for this class
199: foreach my $uname (@okusers) {
200: unless ($uname eq '') {
201: my %uidhash=&Apache::lonnet::idrget($dom,$uname);
202: my @stuinfo = @{$enrollinfo{$uname}};
203: my $access = '';
204: if (grep/^$uname$/,@localstudents) {
205: # Check for studentID changes
206: if ( ($uidhash{$uname}) && ($uidhash{$uname} !~ /error\:/) ) {
207: unless ( ($uidhash{$uname}) eq ($stuinfo[ $place{studentID} ]) ) {
208: $$logmsg .= "Change in ID for $uname. StudentID in LON-CAPA system is $uidhash{$uname}; StudentID in institutional data is $stuinfo[ $place{studentID} ]".$linefeed;
209: }
210: }
211: # Check for switch from manual to auto
212: unless (($$currlist{$uname}[$type] eq "auto") || ($$currlist{$uname}[$lockedtype] eq "1") || (!$adds) ) {
213: # drop manually added student
214: my $drop_reply = &Apache::lonnet::modifystudent($dom,$uname,'','','',undef,undef,undef,undef,$$currlist{$uname}[$sec],time,undef,undef,undef,undef,'auto','',$cid);
215: # re-enroll as auto student
216: if ($drop_reply !~ /^ok/) {
217: $$logmsg .= "An error occured during the attempt to convert $uname from a manual type to an auto type student - $drop_reply.".$linefeed;
218: } else {
219: # re-enroll as auto student
220: my ($auth,$authparam,$first,$middle,$last,$gene,$usec,$end,$start,$emailaddr,$pid,$emailenc);
221: &prepare_add($authtype,$autharg,$enddate,$startdate,\@stuinfo,\%place,\$dom,\$uname,\$auth,\$authparam,\$first,\$middle,\$last,\$gene,\$usec,\$end,\$start,\$emailaddr,\$pid,\$emailenc);
222: if ($$currlist{$uname}[$sec] ne $usec) {
223: $$logmsg .= "Section for $uname switched from $$currlist{$uname}[$sec] to $usec".$linefeed;
224: }
225: &execute_add($context,'switchtype',$uname,$dom,$auth,$authparam,$first,$middle,$last,$gene,$pid,$usec,$end,$start,$emailenc,$cid,\$addresult,\$enrollcount,$linefeed,$logmsg);
226: }
227: }
228: # Check for section changes
229: if ($$currlist{$uname}[$sec] eq $stuinfo[ $place{groupID} ]) {
230: # Check for access date changes for students with access starting in the future.
231: if ( (grep/^$uname$/,@futurestudents) && ($$currlist{$uname}[$type] eq "auto") && ($adds == 1) ) {
232: my $datechange = &datechange_check($$currlist{$uname}[$cstart],$$currlist{$uname}[$cend],$startdate,$enddate);
233: if ($datechange) {
234: my $modify_access_result = &Apache::lonnet::modify_student_enrollment($dom,$uname,undef,undef,undef,undef,undef,$stuinfo[ $place{groupID} ],$enddate,$startdate,'auto','',$cid);
235: $access = &showaccess($enddate,$startdate);
236: if ($modify_access_result =~ /^ok/) {
237: $$logmsg .= "Change in access dates for $uname.".$access.$linefeed;
238: } else {
239: $$logmsg .= "Error when attempting to change start and/or end access dates for $uname in section: ".$stuinfo[ $place{groupID} ]." -error $modify_access_result".$linefeed;
240: }
241: }
242: }
243: } else {
244: if ( ($$currlist{$uname}[$type] eq "auto") && ($adds == 1) ) {
245: # Delete from roles.db for current section
246: my $expiretime = time;
247: my $uurl='/'.$cid;
248: $uurl=~s/\_/\//g;
249: if ($$currlist{$uname}[$sec]) {
250: $uurl.='/'.$$currlist{$uname}[$sec];
251: }
252: my $expire_role_result = &Apache::lonnet::assignrole($dom,$uname,$uurl,'st',$expiretime);
253: if ($expire_role_result eq 'ok') {
254: my $modify_section_result;
255: if (grep/^$uname$/,@activestudents) {
256: $modify_section_result = &Apache::lonnet::modify_student_enrollment($dom,$uname,undef,undef,undef,undef,undef,$stuinfo[ $place{groupID} ],$$currlist{$uname}[$cend],$$currlist{$uname}[$cstart],'auto','',$cid);
257: } else {
258: $modify_section_result = &Apache::lonnet::modify_student_enrollment($dom,$uname,undef,undef,undef,undef,undef,$stuinfo[ $place{groupID} ],$enddate,$startdate,'auto','',$cid);
259: $access = &showaccess($enddate,$startdate);
260: }
261: if ($modify_section_result =~ /^ok/) {
262: $$logmsg .= "Section for $uname switched from old section: ".$$currlist{$uname}[$sec] ." to new section: ".$stuinfo[ $place{groupID} ].".".$access.$linefeed;
263: } else {
264: $$logmsg .= "Error when attempting section change for $uname from old section ".$$currlist{$uname}[$sec]." to new section: ".$stuinfo[ $place{groupID} ]." -error: $modify_section_result".$linefeed;
265: }
266: } else {
267: $$logmsg .= "Error when attempting to expire role for $uname in old section" .$$currlist{$uname}[$sec]." -error: $expire_role_result".$linefeed;
268: }
269: }
270: }
271: } else {
272: # Check for changed usernames by checking studentIDs
273: if ( ($stuinfo[ $place{studentID} ] ne '') && (grep/^$stuinfo[ $place{studentID} ]$/,@LCids) ) {
274: if (grep/^$$currlist{$uname}[ $place{'studentID'} ]$/,@allINids) {
275: foreach my $match ( @{ $unameFromLCid{ $stuinfo[ $place{studentID} ] } } ) {
276: if (grep/^$match$/,@okusers) {
277: $$logmsg .= "A possible change in username has been detected for a student enrolled in this course. The existing LON-CAPA classlist contains user: $uname and student ID: ".$$currlist{$uname}[ $place{studentID} ].". This username has been dropped from the institutional classlist, but the same student ID is used for user: $match who still appears in the institutional classlist. You may need to contact your Domain Coordinator to request a move of the student data files for user: $uname to $match".$linefeed;
278: }
279: }
280: }
281: } elsif ($adds == 1) {
282: my ($auth,$authparam,$first,$middle,$last,$gene,$usec,$end,$start,$emailaddr,$pid,$emailenc);
283: &prepare_add($authtype,$autharg,$enddate,$startdate,\@stuinfo,\%place,\$dom,\$uname,\$auth,\$authparam,\$first,\$middle,\$last,\$gene,\$usec,\$end,\$start,\$emailaddr,\$pid,\$emailenc);
284: # Check for existing account in this LON-CAPA domain for this username
285: my $uhome=&Apache::lonnet::homeserver($uname,$dom);
286: if ($uhome eq 'no_host') { # User does not exist
287: my $args = {'auth' => $auth,
288: 'authparam' => $authparam,
289: 'emailenc' => $emailenc,
290: 'udom' => $dom,
291: 'uname' => $uname,
292: 'pid' => $pid,
293: 'first' => $first,
294: 'middle' => $middle,
295: 'last' => $last,
296: 'gene' => $gene,
297: 'usec' => $usec,
298: 'end' => $end,
299: 'start' => $start,
300: 'emailaddr' => $emailaddr,
301: 'cid' => $cid,
302: 'crs' => $crs,
303: 'cdom' => $dom,
304: 'context' => $context,
305: 'linefeed' => $linefeed,
306: 'role' => 'st'
307: };
308: my $outcome = &create_newuser($args,\$logmsg,\$newusermsg,\$enrollcount,\$addresult,\%longroles,\%courseinfo) = @_;
309: } else {
310: &execute_add($context,'newstudent',$uname,$dom,$auth,$authparam,$first,$middle,$last,$gene,$pid,$usec,$end,$start,$emailenc,$cid,\$addresult,\$enrollcount,$linefeed,$logmsg);
311: }
312: }
313: }
314: }
315: }
316: # Do drops
317: if ( ($drops == 1) && (@reg_students > 0) ) {
318: foreach my $uname (@localstudents) {
319: if ($$currlist{$uname}[$type] eq "auto") {
320: my @saved = ();
321: if (!grep/^$uname$/,@reg_students) {
322: # Check for changed usernames by checking studentIDs
323: if (grep/^$$currlist{$uname}[ $stuid ]$/,@allINids) {
324: foreach my $match (@{$unameFromINid{$$currlist{$uname}[ $stuid ]}} ) {
325: $$logmsg .= "A possible change in username has been detected for a student enrolled in this course. The existing LON-CAPA classlist contains user: $uname and student ID: $$currlist{$uname}[ $place{studentID} ]. This username has been dropped from the institutional classlist, but the same student ID is used for user: $match who still appears in the institutional classlist. You may need to move the student data files for user: $uname to $match.".$linefeed;
326: push @saved,$uname;
327: }
328: } elsif (@saved == 0) {
329: my $drop_reply = &Apache::lonnet::modifystudent($dom,$uname,'','','',undef,undef,undef,undef,$$currlist{$uname}[$sec],time,undef,undef,undef,undef,'auto','',$cid);
330: if ($drop_reply !~ /^ok/) {
331: $$logmsg .= "An error occured during the attempt to expire the $uname from the old section $$currlist{$uname}[$sec] - $drop_reply.".$linefeed;
332: } else {
333: $dropcount ++;
334: my %userenv = &Apache::lonnet::get('environment',['firstname','lastname','id'],$dom,$uname);
335: $dropresult .= $userenv{'firstname'}." ".$userenv{'lastname'}." (".$userenv{'id'}.") - ".$uname." dropped from section/group ".$$currlist{$uname}[$sec].$linefeed;
336: if ($context eq 'automated') {
337: $$logmsg .= "User $uname student role expired from course.".$linefeed;
338: }
339: }
340: }
341: }
342: }
343: }
344: }
345:
346: # Terminated explictly allowed access to student creation/modification
347: if ($context eq 'automated') {
348: delete($ENV{'allowed.cst'});
349: }
350: if ($enrollcount > 0) {
351: if ($context eq "updatenow") {
352: $addresult = substr($addresult,0,rindex($addresult,"<li>"));
353: $addresult = "The following $enrollcount student(s) was/were added to this LON-CAPA course:<br/><ul><li>".$addresult."</li></ul><br/><br/>";
354: } else {
355: $addresult = "The following $enrollcount student(s) was/were added to this LON-CAPA course:\n\n".$addresult."\n\n";
356: }
357: }
358: if ($dropcount > 0) {
359: if ($context eq "updatenow") {
360: $dropresult = substr($dropresult,0,rindex($dropresult,"<li>"));
361: $dropresult = "The following $dropcount student(s) was/were expired from this LON-CAPA course:<br/><ul><li>".$dropresult."</li></ul><br/><br/>";
362: } else {
363: $dropresult = "The following $dropcount student(s) was/were expired from this LON-CAPA course:\n\n".$dropresult."\n\n";
364: }
365: }
366: if ( ($adds) && ($enrollcount == 0) ) {
367: $addresult = "There were no new students to add to the course.";
368: if ($context eq "updatenow") {
369: $addresult .="<br/><br/>";
370: } else {
371: $addresult .="\n";
372: }
373: }
374: if ( ($drops) && ($dropcount == 0) ) {
375: $dropresult = "There were no students with roles to expire because all active students previously added to the course from institutional classlist(s) are still officially registered.";
376: if ($context eq "updatenow") {
377: $dropresult .="<br/>";
378: } else {
379: $dropresult .="\n";
380: }
381: }
382: my $changecount = $enrollcount + $dropcount;
383: return ($changecount,$addresult.$dropresult);
384: }
385:
386: sub create_newuser {
387: my ($args,$logmsg,$newusermsg,$enrollcount,$addresult,$longroles,$courseinfo) = @_;
388: my $auth = $args->{'auth'};
389: my $authparam = $args->{'authparam'};
390: my $emailenc = $args->{'emailenc'};
391: my $udom = $args->{'udom'};
392: my $uname = $args->{'uname'};
393: my $pid = $args->{'pid'};
394: my $first = $args->{'first'};
395: my $middle = $args->{'middle'};
396: my $last = $args->{'last'} ;
397: my $gene = $args->{'gene'};
398: my $usec = $args->{'usec'};
399: my $end = $args->{'end'};
400: my $start = $args->{'start'};
401: my $emailaddr = $args->{'emailaddr'};
402: my $cid = $args->{'cid'};
403: my $crs = $args->{'crs'};
404: my $cdom = $args->{'cdom'};
405: my $context = $args->{'context'};
406: my $linefeed = $args->{'linefeed'};
407: my $role = $args->{'role'};
408: my $create_passwd = 0;
409: my $authchk = '';
410: my $outcome;
411: unless ($authparam eq '') { $authchk = 'ok'; };
412: # If no account exists and passwords should be generated
413: if ($auth eq "internal") {
414: if ($authparam eq '') {
415: $authparam = &create_password();
416: if ($authparam eq '') {
417: $authchk = '';
418: } else {
419: $create_passwd = 1;
420: $authchk = 'ok';
421: }
422: }
423: } elsif ($auth eq "localauth") {
424: ($authparam,$create_passwd,$authchk) = &Apache::lonnet::auto_create_password($crs,$cdom,$authparam);
425: } elsif ($auth =~ m/^krb/) {
426: if ($authparam eq '') {
427: $$logmsg .= "No Kerberos domain was provided for the new user - $uname, so the new user was not enrolled in the course.".$linefeed;
428: $authchk = 'invalid';
429: }
430: } else {
431: $authchk = 'invalid';
432: $$logmsg .= "An invalid authentication type was provided for the new user - $uname, so the user was not enrolled in the course.".$linefeed;
433: }
434: if ($authchk eq 'ok') {
435: # Now create user.
436: my $type = 'auto';
437: my $userurl = '/'.$cdom.'/'.$crs;
438: if ($usec ne '') {
439: $userurl .= '/'.$usec;
440: }
441: if ($context eq 'createowner' || $context eq 'createcourse') {
442: my $result = &Apache::lonnet::modifyuser($udom,$uname,$pid,$auth,$authparam,$first,$middle,$last,$gene,'1',undef,$emailaddr);
443: if ($result eq 'ok' && $context eq 'createcourse') {
444: $outcome = &Apache::loncreateuser::commit_standardrole($userurl,$role,$cdom,$crs,$start,$end);
445: unless ($outcome =~ /^Error:/) {
446: $outcome = 'ok';
447: }
448: } else {
449: $outcome = $result;
450: }
451: } else {
452: $outcome=&Apache::lonnet::modifystudent($udom,$uname,$pid,$auth,$authparam,$first,$middle,$last,$gene,$usec,$end,$start,'',undef,$emailaddr,'auto','',$cid);
453: }
454: if ($outcome eq 'ok') {
455: my $access = &showaccess($end,$start);
456: $$addresult .= "$first $last ($pid) - $uname enrolled in section/group $usec.".$access.$linefeed;
457: unless ($context eq 'createowner' || $context eq 'createcourse') {
458: $$enrollcount ++;
459: }
460: if ($context eq 'automated') {
461: $$logmsg .= "New $udom user $uname added successfully.";
462: }
463: unless ($emailenc eq '' || $context eq 'createowner' || $context eq 'createcourse') {
464: my %emailHash;
465: $emailHash{'critnotification'} = $emailenc;
466: $emailHash{'notification'} = $emailenc;
467: my $putresult = &Apache::lonnet::put('environment',\%emailHash,$udom,$uname);
468: }
469: if ($create_passwd) {
470: # Send e-mail with initial password to new user at $emailaddr.
471: # If e-mail address is invalid, send password via message to courseowner i
472: # (if automated call) or to user if roster update.
473: if ($emailaddr eq '') {
474: $$newusermsg .= " username: $uname, password: ".$authparam.$linefeed."\n";
475: } else {
476: my $subject = "New LON-CAPA account";
477: my $body;
478: if ($context eq 'createowner') {
479: $body = "A user account has been created for you while creating your new course in the LON-CAPA course management and online homework system.\n\nYou should log-in to the system using the following credentials:\nusername: $uname\npassword: $authparam\n\nThe URL you should use to access the LON-CAPA system at your school is: http://".$ENV{'SERVER_NAME'}."\n\n";
480: } elsif ($context eq 'createcourse') {
481: $body = "You have been assigned the role of $$longroles{$role} in a new course: $$courseinfo{'description'} - $$courseinfo{'inst_code'} in the LON-CAPA course management and online homework system. As you did not have an existing user account in the system, one has been created for you.\n\nYou should log-in to the system using the following credentials:\nusername: $uname\npassword: $authparam\n\nThe URL you should use to access the LON-CAPA system at your school is: http://".$ENV{'SERVER_NAME'}."\n\n";
482: } else {
483: my $access_start = 'immediately';
484: if ($start > 0) {
485: $access_start = localtime($start)
486: }
487: $body = "You have been enrolled in the LON-CAPA system at your school, because you are a registered student in a class that is using the LON-CAPA couse management and online homework system.\n\nYou should log-in to the system using the following credentials:\nusername: $uname\npassword: $authparam\n\nThe URL you should use to access the LON-CAPA system at your school is: http://".$ENV{'SERVER_NAME'}."\n\n.When you log-in you will be able to access the LON-CAPA course for $$courseinfo{'description'} - $$courseinfo{'inst_code'} starting $access_start.\n";
488: }
489: &Apache::lonmsg::sendemail($emailaddr,$subject,$body);
490: }
491: if ($context eq 'automated') {
492: $$logmsg .= " Initial password - - sent to ".$emailaddr.$linefeed;
493: }
494: } else {
495: if ($context eq 'automated') {
496: $$logmsg .= $linefeed;
497: }
498: }
499: } else {
500: $$logmsg .= "An error occurred adding new user $uname - ".$outcome.$linefeed;
501: }
502: }
503: return $outcome;
504: }
505:
506: sub prepare_add {
507: my ($authtype,$autharg,$enddate,$startdate,$stuinfo,$place,$dom,$uname,$auth,$authparam,$first,$middle,$last,$gene,$usec,$end,$start,$emailaddr,$pid,$emailenc) = @_;
508: $$auth = $$stuinfo[ $$place{'authtype'} ];
509: $$authparam = $$stuinfo[ $$place{'autharg'} ];
510: $$first = $$stuinfo[ $$place{'firstname'} ];
511: $$middle = $$stuinfo[ $$place{'middlename'} ];
512: $$last = $$stuinfo[ $$place{'lastname'} ];
513: $$gene = $$stuinfo[ $$place{'generation'} ];
514: $$usec = $$stuinfo[ $$place{'groupID'} ];
515: $$end = $$stuinfo[ $$place{'enddate'} ];
516: $$start = $$stuinfo[ $$place{'startdate'} ];
517: $$emailaddr = $$stuinfo[ $$place{'email'} ];
518: $$pid = $$stuinfo[ $$place{'studentID'} ];
519:
520: # remove non alphanumeric values from section
521: $$usec =~ s/\W//g;
522:
523: unless ($$emailaddr =~/^[^\@]+\@[^\@]+$/) { $$emailaddr =''; }
524: $$emailenc = &HTML::Entities::encode($$emailaddr,'<>&"');
525:
526: # Use course defaults where entry is absent
527: if ( ($$auth eq '') || (!defined($$auth)) ) {
528: $$auth = $authtype;
529: }
530: if ( ($$authparam eq '') || (!defined($$authparam)) ) {
531: $$authparam = $autharg;
532: }
533: if ( ($$end eq '') || (!defined($$end)) ) {
534: $$end = $enddate;
535: }
536: if ( ($$start eq '') || (!defined($$start)) ) {
537: $$start = $startdate;
538: }
539: # Clean up whitespace
540: foreach ($dom,$uname,$pid,$first,$middle,$last,$gene,$usec) {
541: $$_ =~ s/(\s+$|^\s+)//g;
542: }
543: return;
544: }
545:
546: sub execute_add {
547: my ($context,$caller,$uname,$dom,$auth,$authparam,$first,$middle,$last,$gene,$pid,$usec,$end,$start,$emailenc,$cid,$addresult,$enrollcount,$linefeed,$logmsg) = @_;
548: # Get the user's information and authentication
549: my %userenv = &Apache::lonnet::get('environment',['firstname','middlename','lastname','generation','id','critnotification','notification'],$dom,$uname);
550: my ($tmp) = keys(%userenv);
551: if ($tmp =~ /^(con_lost|error)/i) {
552: %userenv = ();
553: }
554: # Get the user's e-mail address
555: if ($userenv{critnotification} =~ m/%40/) {
556: unless ($emailenc eq $userenv{critnotification}) {
557: $$logmsg .= "Current critical notification e-mail
558: - ".$userenv{critnotification}." for $uname is different to e-mail address in institutional classlist - ".$emailenc.$linefeed;
559: }
560: }
561: if ($userenv{notification} =~ m/%40/) {
562: unless ($emailenc eq $userenv{critnotification}) {
563: $$logmsg .= "Current standard notification e-mail
564: - ".$userenv{notification}." for $uname is different to e-mail address in institutional classlist - ".$emailenc.$linefeed;
565: }
566: }
567: my $krbdefdom = '';
568: my $currentauth=&Apache::lonnet::queryauthenticate($uname,$dom);
569: if ($currentauth=~/^(krb[45]):(.*)/) {
570: $currentauth = $1;
571: $krbdefdom = $2;
572: } elsif ($currentauth=~ /^(unix|internal|localauth):/) {
573: $currentauth = $1;
574: } else {
575: $$logmsg .= "Invalid authentication method $currentauth for $uname.".$linefeed;
576: }
577: # Report if authentication methods are different.
578: if ($currentauth ne $auth) {
579: $$logmsg .= "Authentication type mismatch for $uname - '$currentauth' in system, '$auth' based on information in classlist or default for this course.".$linefeed;
580: } elsif ($auth =~ m/^krb/) {
581: if ($krbdefdom ne $authparam) {
582: $$logmsg .= "Kerberos domain mismatch for $uname - '$krbdefdom' in system, '$authparam' based on information in classlist or default for this course.".$linefeed;
583: }
584: }
585:
586: # Check user data
587: if ($first ne $userenv{'firstname'} ||
588: $middle ne $userenv{'middlename'} ||
589: $last ne $userenv{'lastname'} ||
590: $gene ne $userenv{'generation'} ||
591: $pid ne $userenv{'id'} ) {
592: # Make the change(s)
593: my %changeHash;
594: $changeHash{'firstname'} = $first;
595: $changeHash{'middlename'} = $middle;
596: $changeHash{'lastname'} = $last;
597: $changeHash{'generation'} = $gene;
598: $changeHash{'id'} = $pid;
599: my $putresult = &Apache::lonnet::put('environment',\%changeHash,$dom,$uname);
600: if ($putresult eq 'ok') {
601: $$logmsg .= "User information updated for user: $uname prior to enrollment.".$linefeed;
602: } else {
603: $$logmsg .= "There was a problem modifying user data for existing user - $uname -error: $putresult, enrollment will still be attempted.".$linefeed;
604: }
605: }
606:
607: # Assign the role of student in the course.
608: my $classlist_reply = &Apache::lonnet::modify_student_enrollment($dom,$uname,$pid,$first,$middle,$last,$gene,$usec,$end,$start,'auto','',$cid);
609: if ($classlist_reply eq 'ok') {
610: my $access = &showaccess($end,$start);
611: if ($caller eq 'switchtype') {
612: $$logmsg .= "Existing user $uname detected in institutional classlist - switched from 'manual' to 'auto' enrollment in section/group $usec.".$access.$linefeed;
613: } elsif ($caller eq 'newstudent') {
614: $$enrollcount ++;
615: $$addresult .= "$first $last ($pid) - $uname enrolled in section/group $usec.".$access.$linefeed;
616: }
617: if ($context eq 'automated') {
618: $$logmsg .= "Existing $dom user $uname enrolled successfully.".$linefeed;
619: }
620: } else {
621: $$logmsg .= "There was a problem updating the classlist db file for user $uname to show the new enrollment -error: $classlist_reply, so no enrollment occurred for this user.".$linefeed;
622: }
623: return;
624: }
625:
626: sub datechange_check {
627: my ($oldstart,$oldend,$startdate,$enddate) = @_;
628: my $datechange = 0;
629: unless ($oldstart eq $startdate) {
630: $datechange = 1;
631: }
632: if (!$datechange) {
633: if (!$oldend) {
634: if ($enddate) {
635: $datechange = 1;
636: }
637: } elsif ($oldend ne $enddate) {
638: $datechange = 1;
639: }
640: }
641: return $datechange;
642: }
643:
644: sub showaccess {
645: my ($end,$start) = @_;
646: my $showstart;
647: my $showend;
648: if ( (!$start) || ($start <= time) ) {
649: $showstart = 'immediately';
650: } else {
651: $showstart = &Apache::lonlocal::locallocaltime($start);
652: }
653: if (!$end) {
654: $showend = 'no end date';
655: } else {
656: $showend = &Apache::lonlocal::locallocaltime($end);
657: }
658: my $access_msg = " Access starts: ".$showstart.", ends: ".$showend.".";
659: return $access_msg;
660: }
661:
662: sub parse_classlist {
663: my ($tmpdir,$dom,$crs,$class,$placeref,$groupID,$studentsref) = @_;
664: my $xmlfile = $tmpdir."/tmp/".$dom."_".$crs."_".$class."_classlist.xml";
665: my $uname = '';
666: my @state;
667: my @items = ('autharg','authtype','email','firstname','generation','lastname','middlename','studentID');
668: my $p = HTML::Parser->new
669: (
670: xml_mode => 1,
671: start_h =>
672: [sub {
673: my ($tagname, $attr) = @_;
674: push @state, $tagname;
675: if ("@state" eq "students student") {
676: $uname = $attr->{username};
677: }
678: }, "tagname, attr"],
679: text_h =>
680: [sub {
681: my ($text) = @_;
682: if ("@state" eq "students student groupID") {
683: $$studentsref{$uname}[ $$placeref{'groupID'} ] = $groupID;
684: } elsif ("@state" eq "students student startdate") {
685: my $start = $text;
686: unless ($text eq '') {
687: $start = &process_date($text);
688: }
689: $$studentsref{$uname}[ $$placeref{'startdate'} ] = $start;
690: } elsif ("@state" eq "students student enddate") {
691: my $end = $text;
692: unless ($text eq '') {
693: $end = &process_date($text);
694: }
695: $$studentsref{$uname}[ $$placeref{'enddate'} ] = $end;
696: } else {
697: foreach my $item (@items) {
698: if ("@state" eq "students student $item") {
699: $$studentsref{$uname}[ $$placeref{$item} ] = $text;
700: }
701: }
702: }
703: }, "dtext"],
704: end_h =>
705: [sub {
706: my ($tagname) = @_;
707: pop @state;
708: }, "tagname"],
709: );
710:
711: $p->parse_file($xmlfile);
712: $p->eof;
713: if (-e "$xmlfile") {
714: unlink $xmlfile;
715: }
716: return;
717: }
718:
719: sub process_date {
720: my $timestr = shift;
721: my $timestamp = '';
722: if ($timestr =~ m/^\d{4}:\d{2}:\d{2}/) {
723: my @entries = split/:/,$timestr;
724: for (my $j=0; $j<@entries; $j++) {
725: if ( length($entries[$j]) > 1 ) {
726: $entries[$j] =~ s/^0//;
727: }
728: }
729: $entries[1] = $entries[1] - 1;
730: $timestamp = timelocal($entries[5],$entries[4],$entries[3],$entries[2],$entries[1],$entries[0]);
731: }
732: return $timestamp;
733: }
734:
735: sub create_password {
736: my $passwd = '';
737: my @letts = ("a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z");
738: for (my $i=0; $i<8; $i++) {
739: my $lettnum = int (rand 2);
740: my $item = '';
741: if ($lettnum) {
742: $item = $letts[int( rand(26) )];
743: my $uppercase = int(rand 2);
744: if ($uppercase) {
745: $item =~ tr/a-z/A-Z/;
746: }
747: } else {
748: $item = int( rand(10) );
749: }
750: $passwd .= $item;
751: }
752: return ($passwd);
753: }
754:
755: sub check_user_status {
756: my ($udom,$uname,$cdom,$crs,$role,$secgrp) = @_;
757: my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
758: my @uroles = keys %userinfo;
759: my $srchstr;
760: my $active_chk = 'none';
761: if (@uroles > 0) {
762: if ( ($role eq 'cc') || ($secgrp eq '') || ( !defined($secgrp) ) ) {
763: $srchstr = '/'.$cdom.'/'.$crs.'_'.$role;
764: } else {
765: $srchstr = '/'.$cdom.'/'.$crs.'/'.$secgrp.'_'.$role;
766: }
767: if (grep/^$srchstr$/,@uroles) {
768: my $role_end = 0;
769: my $role_start = 0;
770: $active_chk = 'ok';
771: if ( $userinfo{$srchstr} =~ m/^($role)_(\d+)/ ) {
772: $role_end = $2;
773: if ( $userinfo{$srchstr} =~ m/^($role)_($role_end)_(\d+)$/ )
774: {
775: $role_start = $3;
776: }
777: }
778: if ($role_start > 0) {
779: if (time < $role_start) {
780: $active_chk = 'expired';
781: }
782: }
783: if ($role_end > 0) {
784: if (time > $role_end) {
785: $active_chk = 'expired';
786: }
787: }
788: }
789: }
790: return $active_chk;
791: }
792:
793: sub get_courseinfo {
794: my ($dom,$crs,$courseinfo) = @_;
795: my $owner;
796: if (defined($dom) && defined($crs)) {
797: my %settings = &Apache::lonnet::get('environment',['internal.coursecode','description'],$dom,$crs);
798: if ( defined($settings{'internal.coursecode'}) ) {
799: $$courseinfo{'inst_code'} = $settings{'internal.coursecode'};
800:
801: }
802: if ( defined($settings{'description'}) ) {
803: $$courseinfo{'description'} = $settings{'description'};
804: }
805: }
806: return;
807: }
808:
809: sub CL_autharg { return 0; }
810: sub CL_authtype { return 1;}
811: sub CL_email { return 2;}
812: sub CL_enddate { return 3;}
813: sub CL_firstname { return 4;}
814: sub CL_generation { return 5;}
815: sub CL_groupID { return 6;}
816: sub CL_lastname { return 7;}
817: sub CL_middlename { return 8;}
818: sub CL_startdate { return 9; }
819: sub CL_studentID { return 10; }
820:
821: 1;
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to Enrollment.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / enrollment