1: # Automated Enrollment manager
2: # $Id: Enrollment.pm,v 1.55 2021/09/08 12:13:13 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::loncommon();
31: use Apache::lonmsg;
32: use Apache::lonlocal;
33: use HTML::Entities;
34: use HTML::Parser;
35: use LONCAPA::Configuration;
36: use Math::Random;
37: use Time::Local;
38: use lib '/home/httpd/lib/perl';
39:
40: use strict;
41:
42: sub update_LC {
43: my ($dom,$crs,$adds,$drops,$startdate,$enddate,$authtype,$autharg,
44: $showcredits,$defaultcredits,$autofailsafe,$classesref,$groupref,
45: $logmsg,$newusermsg,$context,$phototypes) = @_;
46: # Get institutional code and title of this class
47: my %courseinfo = ();
48: &get_courseinfo($dom,$crs,\%courseinfo);
49: # Get current LON-CAPA student enrollment for this class
50: my $configvars = &LONCAPA::Configuration::read_conf('loncapa.conf');
51: my $cid = $dom."_".$crs;
52: my $roster = &Apache::loncoursedata::get_classlist($dom,$crs);
53: my $cend = &Apache::loncoursedata::CL_END;
54: my $cstart = &Apache::loncoursedata::CL_START;
55: my $stuid=&Apache::loncoursedata::CL_ID;
56: my $sec=&Apache::loncoursedata::CL_SECTION;
57: my $status=&Apache::loncoursedata::CL_STATUS;
58: my $type=&Apache::loncoursedata::CL_TYPE;
59: my $lockedtype=&Apache::loncoursedata::CL_LOCKEDTYPE;
60: my $credidx=&Apache::loncoursedata::CL_CREDITS;
61: my $instidx = &Apache::loncoursedata::CL_INSTSEC;
62: my @localstudents = ();
63: my @futurestudents = ();
64: my @activestudents = ();
65: my @excludedstudents = ();
66: my $currlist;
67: my $now = time;
68: foreach my $uname (keys %{$roster} ) {
69: if ($uname =~ m/^(.+):$dom$/) {
70: if ($$roster{$uname}[$status] eq "Active") {
71: push @activestudents, $1;
72: @{$$currlist{$1}} = @{$$roster{$uname}};
73: push @localstudents, $1;
74: } elsif ( ($$roster{$uname}[$cstart] > time) && ($$roster{$uname}[$cend] > time || $$roster{$uname}[$cend] == 0 || $$roster{$uname}[$cend] eq '') ) {
75: push @futurestudents, $1;
76: @{$$currlist{$1}} = @{$$roster{$uname}};
77: push @localstudents, $1;
78: } elsif ($$roster{$uname}[$lockedtype] == 1) {
79: push @excludedstudents, $1;
80: }
81: }
82: }
83: my $linefeed = '';
84: my $addresult = '';
85: my $dropresult = '';
86: my $switchresult = '';
87: my $photoresult = '';
88: if ($context eq "updatenow") {
89: $linefeed = "</li>\n<li>";
90: } elsif ($context eq "automated") {
91: $linefeed = "\n";
92: }
93: my $enrollcount = 0;
94: my $dropcount = 0;
95: my $switchcount = 0;
96:
97: # Get role names
98: my %longroles = ();
99: open(FILE,"<$$configvars{'lonTabDir'}.'/rolesplain.tab");
100: my @rolesplain = <FILE>;
101: close(FILE);
102: foreach my $item (@rolesplain) {
103: if ($_ =~ /^(st|ta|ex|ad|in|cc|co):([\w\s]+):?([\w\s]*)/) {
104: if ($courseinfo{'type'} eq 'Community') {
105: unless($1 eq 'cc') {
106: $longroles{$1} = $3;
107: }
108: } else {
109: unless($1 eq 'co') {
110: $longroles{$1} = $2;
111: }
112: }
113: }
114: }
115:
116: srand( time() ^ ($$ + ($$ << 15)) ); # Seed rand in case initial passwords have to be generated for new users.
117:
118: # Get mapping of IDs to usernames for current LON-CAPA student enrollment for this class
119: my @LCids = ();
120: my %unameFromLCid = ();
121: foreach my $uname (sort keys %{$currlist}) {
122: my $stuID = $$currlist{$uname}[$stuid];
123: if (!grep/^$stuID$/,@LCids) {
124: push @LCids, $stuID;
125: @{$unameFromLCid{$stuID}} = ();
126: }
127: push @{$unameFromLCid{$stuID}},$uname;
128: }
129:
130: # Get latest institutional enrollment for this class.
131: my %allenrolled = ();
132: my @reg_students = ();
133: my %place = &place_hash();
134: my %ucount = ();
135: my %enrollinfo = ();
136: my %classcount;
137: foreach my $class (@{$classesref}) {
138: my %enrolled = ();
139: &parse_classlist($$configvars{'lonDaemons'},$dom,$crs,$class,\%place,$$groupref{$class},\%enrolled);
140: $classcount{$class} = scalar(keys(%enrolled));
141: foreach my $uname (sort keys %enrolled ) {
142: if (!grep/^$uname$/,@reg_students) {
143: push @reg_students,$uname;
144: $ucount{$uname} = 0;
145: @{$allenrolled{$uname}} = ();
146: }
147: @{$allenrolled{$uname}[$ucount{$uname}]} = @{$enrolled{$uname}};
148: $ucount{$uname} ++;
149: }
150: }
151:
152: # Check for multiple sections for a single student
153: my @okusers = ();
154: foreach my $uname (@reg_students) {
155: if (grep/^$uname$/,@excludedstudents) {
156: $$logmsg .= &mt('No re-enrollment for [_1] - user was previously manually unenrolled and locked.',$uname).$linefeed;
157: } elsif (@{$allenrolled{$uname}} > 1) {
158: my @sections = ();
159: my $saved;
160: for (my $i=0; $i<@{$allenrolled{$uname}}; $i++) {
161: my @stuinfo = @{$allenrolled{$uname}[$i]};
162: my $secnum = $stuinfo[ $place{'groupID'} ];
163: unless ($secnum eq '') {
164: unless (grep/^$secnum$/,@sections) {
165: $saved = $i;
166: push @sections,$secnum;
167: }
168: }
169: }
170: if (@sections == 0) {
171: @{$enrollinfo{$uname}} = @{$allenrolled{$uname}[0]};
172: push @okusers, $uname;
173: }
174: elsif (@sections == 1) {
175: @{$enrollinfo{$uname}} = @{$allenrolled{$uname}[$saved]};
176: push @okusers, $uname;
177: }
178: elsif (@sections > 1) {
179: $$logmsg .= &mt('[_1] appears in classlists for more than one section of this course, i.e. in sections: ',$uname);
180: foreach (@sections) {
181: $$logmsg .= " $_,";
182: }
183: chop($$logmsg);
184: $$logmsg .= '. '.&mt('Because of this ambiguity, no enrollment action was taken for this student.').$linefeed;
185: }
186: } else {
187: @{$enrollinfo{$uname}} = @{$allenrolled{$uname}[0]};
188: push @okusers, $uname;
189: }
190: }
191: # Get mapping of student/employee IDs to usernames for users in institutional data for this class
192: my @allINids = ();
193: my %unameFromINid = ();
194: foreach my $uname (@okusers) {
195: $enrollinfo{$uname}[ $place{'studentID'} ] =~ tr/A-Z/a-z/;
196: my $stuID = $enrollinfo{$uname}[ $place{'studentID'} ];
197: if (grep/^$stuID$/,@allINids) {
198: push @{$unameFromINid{$stuID}},$uname;
199: } else {
200: push @allINids, $stuID;
201: @{$unameFromINid{$stuID}} = $uname;
202: }
203: }
204:
205: # Explicitly allow access to creation/modification of students and group membership changes
206: # when called as an automated process.
207: if ($context eq 'automated') {
208: $env{'allowed.cst'}='F';
209: $env{'allowed.mdg'}='F';
210: }
211:
212: # Compare IDs with existing LON-CAPA enrollment for this class
213: foreach my $uname (@okusers) {
214: unless ($uname eq '') {
215: my %uidhash=&Apache::lonnet::idrget($dom,$uname);
216: my @stuinfo = @{$enrollinfo{$uname}};
217: my ($access,$added,$inststatus,$instsec);
218: my $credits;
219: if ($showcredits) {
220: $credits = $stuinfo[$place{'credits'}];
221: $credits =~ s/[^\d\.]//g;
222: if ($credits eq $defaultcredits) {
223: undef($credits);
224: }
225: }
226: $inststatus = $stuinfo[$place{inststatus}];
227: $instsec = $stuinfo[$place{instsec}];
228: if (grep/^$uname$/,@localstudents) {
229: # Check for studentID changes
230: if ( ($uidhash{$uname}) && ($uidhash{$uname} !~ /error\:/) ) {
231: unless ( ($uidhash{$uname}) eq ($stuinfo[ $place{studentID} ]) ) {
232: $$logmsg .= &mt('Change in ID for [_1]. StudentID in LON-CAPA system is [_2]; StudentID in institutional data is [_3].',$uname,$uidhash{$uname},$stuinfo[ $place{studentID} ]).$linefeed;
233: }
234: }
235: # Check for switch from manual to auto
236: unless (($$currlist{$uname}[$type] eq "auto") || ($$currlist{$uname}[$lockedtype] eq "1") || (!$adds) ) {
237: # drop manually added student
238: my $drop_reply = &Apache::lonnet::modifystudent($dom,$uname,'','','',undef,undef,undef,undef,$$currlist{$uname}[$sec],time,undef,undef,undef,undef,'auto','',$cid,'',$context);
239: # re-enroll as auto student
240: if ($drop_reply !~ /^ok/) {
241: $$logmsg .= &mt('An error occurred during the attempt to convert [_1] from a manual type to an auto type student - [_2].',$uname,$drop_reply).$linefeed;
242: } else {
243: # re-enroll as auto student
244: my ($auth,$authparam,$first,$middle,$last,$gene,$usec,$end,$start,$emailaddr,$pid,$emailenc);
245: &prepare_add($authtype,$autharg,$enddate,$startdate,\@stuinfo,\%place,\$dom,\$uname,\$auth,\$authparam,\$first,\$middle,\$last,\$gene,\$usec,\$end,\$start,\$emailaddr,\$pid,\$emailenc);
246: if ($$currlist{$uname}[$sec] ne $usec) {
247: my $showoldsec = $$currlist{$uname}[$sec];
248: if ($$currlist{$uname}[$sec] eq '') {
249: $showoldsec = &mt('none');
250: }
251: my $showsec = $usec;
252: if ($usec eq '') {
253: $showsec = &mt('none');
254: }
255: $switchresult .= &mt('Section for [_1] switched from [_2] to [_3].',$uname,$showoldsec,$showsec).$linefeed;
256: if ($context eq 'automated') {
257: $$logmsg .= &mt('Section switch for [_1] from [_2] to [_3].',$uname,$showoldsec,$usec).$linefeed;
258: }
259: $switchcount ++;
260: }
261: &execute_add($context,'switchtype',$uname,$dom,$auth,
262: $authparam,$first,$middle,$last,$gene,
263: $pid,$usec,$end,$start,$emailenc,
264: $credits,$instsec,$cid,\$addresult,\$enrollcount,
265: $linefeed,$logmsg);
266: $added = 1;
267: }
268: }
269: # Check for section changes
270: if ($$currlist{$uname}[$sec] eq $stuinfo[ $place{groupID} ]) {
271: # Check for access date changes for students with access starting in the future.
272: if ( (grep/^$uname$/,@futurestudents) && ($$currlist{$uname}[$type] eq "auto") && ($adds == 1) ) {
273: my $datechange = &datechange_check($$currlist{$uname}[$cstart],$$currlist{$uname}[$cend],$startdate,$enddate);
274: if ($datechange) {
275: my $modify_access_result = &Apache::lonnet::modify_student_enrollment($dom,$uname,undef,undef,undef,undef,undef,$stuinfo[ $place{groupID} ],$enddate,$startdate,'auto','',$cid,'',$context,$credits,$instsec);
276: $access = &showaccess($enddate,$startdate);
277: if ($modify_access_result =~ /^ok/) {
278: $$logmsg .= &mt('Change in access dates for [_1].',$uname).$access.$linefeed;
279: $added = 1;
280: } else {
281: $$logmsg .= &mt('Error when attempting to change start and/or end access dates for [_1] in section: [_2] -error [_3].',$uname,$stuinfo[$place{groupID}],$modify_access_result).$linefeed;
282: }
283: }
284: }
285: } else {
286: if ( ($$currlist{$uname}[$type] eq "auto") && ($adds == 1) ) {
287: # Delete from roles.db for current section
288: my $expiretime = time;
289: my $uurl='/'.$cid;
290: $uurl=~s/\_/\//g;
291: if ($$currlist{$uname}[$sec]) {
292: $uurl.='/'.$$currlist{$uname}[$sec];
293: }
294: my $expire_role_result = &Apache::lonnet::assignrole($dom,$uname,$uurl,'st',$expiretime,'','','',$context);
295: if ($expire_role_result eq 'ok') {
296: my $modify_section_result;
297: if (grep/^$uname$/,@activestudents) {
298: $modify_section_result = &Apache::lonnet::modify_student_enrollment($dom,$uname,undef,undef,undef,undef,undef,$stuinfo[ $place{groupID} ],$$currlist{$uname}[$cend],$$currlist{$uname}[$cstart],'auto','',$cid,'',$context,$credits,$instsec);
299: } else {
300: $modify_section_result = &Apache::lonnet::modify_student_enrollment($dom,$uname,undef,undef,undef,undef,undef,$stuinfo[ $place{groupID} ],$enddate,$startdate,'auto','',$cid,'',$context,$credits,$instsec);
301: $access = &showaccess($enddate,$startdate);
302: }
303: if ($modify_section_result =~ /^ok/) {
304: $switchresult .= &mt('Section for [_1] switched from old section: [_2] to new section: [_3].',$uname,$$currlist{$uname}[$sec],$stuinfo[ $place{groupID} ]).$access.$linefeed;
305: $added = 1;
306: if ($context eq 'automated') {
307: $$logmsg .= &mt('Section switch for [_1] from [_2] to [_3].',$uname,$$currlist{$uname}[$sec],$stuinfo[ $place{groupID} ]).$linefeed;
308: }
309: $switchcount ++;
310: } else {
311: $$logmsg .= &mt("Error when attempting section change for [_1], from old section: '[_2]' to new section: '[_3]' -error: [_4]",$uname,$$currlist{$uname}[$sec],$stuinfo[ $place{groupID} ],$modify_section_result).$linefeed;
312: }
313: } else {
314: $$logmsg .= &mt("Error when attempting to expire role for [_1] in old section: '[_2]' -error: '[_3]'.",$uname,$$currlist{$uname}[$sec],$expire_role_result).$linefeed;
315: }
316: }
317: }
318: # Check for credits changes
319: if (($showcredits) &&
320: ($$currlist{$uname}[$credidx] ne $credits) && (!$added)) {
321: my $modify_credits_result =
322: &Apache::lonnet::modify_student_enrollment($dom,$uname,undef,undef,undef,undef,undef,$stuinfo[ $place{groupID} ],$enddate,$startdate,'auto','',$cid,'',$context,$credits,$instsec);
323: if ($modify_credits_result =~ /^ok/) {
324: if ($credits ne '') {
325: $$logmsg .= &mt('Credits change for [_1] from [_2] to [_3].',$uname,$$currlist{$uname}[$credidx],$credits).$linefeed;
326: } else {
327: $$logmsg .= &mt('Credits change for [_1] from [_2] to course default [_3].',$uname,$$currlist{$uname}[$credidx],$defaultcredits).$linefeed;
328: }
329: } else {
330: $$logmsg .= &mt('Error when attempting to change credits for [_1] in section: [_2] -error [_3].',$uname,$stuinfo[$place{groupID}],$modify_credits_result).$linefeed;
331: }
332: }
333: # Check for institutional section change
334: if (($$currlist{$uname}[$instidx] ne $instsec) && (!$added) && ($$currlist{$uname}[$type] eq "auto")) {
335: my $modify_instsec_result =
336: &Apache::lonnet::modify_student_enrollment($dom,$uname,undef,undef,undef,undef,undef,$stuinfo[ $place{groupID} ],$enddate,$startdate,'auto','',$cid,'',$context,$credits,$instsec);
337: if ($modify_instsec_result =~ /^ok/) {
338: $$logmsg .= &mt('Institutional section change for [_1] from [_2] to [_3].',$uname,$$currlist{$uname}[$instidx],$instsec).$linefeed;
339: } else {
340: $$logmsg .= &mt('Error when attempting to change institutional section for [_1] in section: [_2] -error [_3].',$uname,$stuinfo[$place{groupID}],$modify_instsec_result).$linefeed;
341: }
342: }
343: } else {
344: # Check for changed usernames by checking studentIDs
345: if ( ($stuinfo[ $place{studentID} ] ne '') && (grep/^$stuinfo[ $place{studentID} ]$/,@LCids) ) {
346: foreach my $match ( @{ $unameFromLCid{ $stuinfo[ $place{studentID} ] } } ) {
347: $$logmsg .= &mt('A possible change in username has been detected for a student enrolled in this course.').' '.&mt('The existing LON-CAPA classlist contains user: [_1] and student/employee ID: [_2].',$match,$stuinfo[ $place{studentID} ]);
348: if (grep/^$match$/,@okusers) {
349: $$logmsg .= &mt('The username [_1] remains in the institutional classlist, but the same student/employee ID is used for new user: [_2] now found in the institutional classlist.',$match,$uname).' '.&mt('You may need to contact your Domain Coordinator to determine how to resolve this issue and whether to move student data files for user: [_1] to [_2].',$match,$uname).' ';
350: } else {
351: unless ($drops == 1) {
352: $$logmsg .= &mt('This username - [_1] - has been dropped from the institutional classlist, but the student/employee ID of this user is also used by [_2] who now appears in the institutional classlist.',$match,$uname).' '.&mt('You may need to contact your Domain Coordinator to request a move of the student data files for user: [_1] to [_2].',$match,$uname).' ';
353: }
354: }
355: $$logmsg .= &mt('Because of this student/employee ID conflict, the new username - [_1] - has not been added to the LON-CAPA classlist',$uname).$linefeed;
356: }
357: } elsif ($adds == 1) {
358: my ($auth,$authparam,$first,$middle,$last,$gene,$usec,$end,$start,$emailaddr,$pid,$emailenc,$credithours);
359: &prepare_add($authtype,$autharg,$enddate,$startdate,\@stuinfo,\%place,\$dom,\$uname,\$auth,\$authparam,\$first,\$middle,\$last,\$gene,\$usec,\$end,\$start,\$emailaddr,\$pid,\$emailenc);
360: # Check for existing account in this LON-CAPA domain for this username
361: next if (($end) && ($end < $now));
362: my $uhome=&Apache::lonnet::homeserver($uname,$dom);
363: if ($uhome eq 'no_host') { # User does not exist
364: my $args = {'auth' => $auth,
365: 'authparam' => $authparam,
366: 'emailenc' => $emailenc,
367: 'udom' => $dom,
368: 'uname' => $uname,
369: 'pid' => $pid,
370: 'first' => $first,
371: 'middle' => $middle,
372: 'last' => $last,
373: 'gene' => $gene,
374: 'usec' => $usec,
375: 'end' => $end,
376: 'start' => $start,
377: 'emailaddr' => $emailaddr,
378: 'cid' => $cid,
379: 'crs' => $crs,
380: 'cdom' => $dom,
381: 'context' => $context,
382: 'linefeed' => $linefeed,
383: 'inststatus' => $inststatus,
384: 'instsec' => $instsec,
385: 'role' => 'st',
386: };
387: if ($credits) {
388: $args->{'credits'} = $credits;
389: }
390: my $outcome = &create_newuser($args,$logmsg,$newusermsg,\$enrollcount,\$addresult,\%longroles,\%courseinfo,$context);
391: } else {
392: &execute_add($context,'newstudent',$uname,$dom,$auth,
393: $authparam,$first,$middle,$last,$gene,$pid,
394: $usec,$end,$start,$emailenc,$credits,$instsec,
395: $cid,\$addresult,\$enrollcount,$linefeed,
396: $logmsg);
397: }
398: if ($courseinfo{'showphoto'}) {
399: my ($result,$resulttype) =
400: &Apache::lonnet::auto_checkphotos($uname,$dom,$pid);
401: if ($resulttype) {
402: push(@{$$phototypes{$resulttype}},$uname);
403: }
404: }
405: }
406: }
407: }
408: }
409: if ($courseinfo{'showphoto'}) {
410: if (keys(%{$phototypes})>0) {
411: my %lt = &photo_response_types();
412: foreach my $type (sort(keys(%{$phototypes}))) {
413: my $numphoto = @{$$phototypes{$type}};
414: if ($numphoto > 0) {
415: if ($context eq 'updatenow') {
416: $photoresult .= '<br /><b>'.
417: &mt('For [_1] students, photos ',$numphoto).
418: $lt{$type}.'</b><ul><li>';
419: } else {
420: $photoresult .= "\n".&mt("For [quant,_1,student], photos ",$numphoto).
421: $lt{$type}."\n";
422: }
423: foreach my $user (@{$$phototypes{$type}}) {
424: $photoresult .= $user.$linefeed;
425: }
426: if ($context eq 'updatenow') {
427: $photoresult = substr($photoresult,0,
428: rindex($photoresult,"<li>"));
429: $photoresult .= '</ul><br />';
430: } else {
431: $photoresult .= "\n";
432: }
433: }
434: }
435: }
436: }
437:
438: # Do drops
439: if ( ($drops == 1) && (@reg_students > 0) ) {
440: my %delaydrops;
441: foreach my $uname (@localstudents) {
442: if ($$currlist{$uname}[$type] eq "auto") {
443: my @saved = ();
444: if (!grep/^$uname$/,@reg_students) {
445: # Check for changed usernames by checking studentIDs
446: if (grep/^$$currlist{$uname}[ $stuid ]$/,@allINids) {
447: foreach my $match (@{$unameFromINid{$$currlist{$uname}[ $stuid ]}} ) {
448: $$logmsg .= &mt('A possible change in username has been detected for a student enrolled in this course.').' '.&mt('The existing LON-CAPA classlist contains user: [_1] and student/employee ID: [_2].',$uname,$$currlist{$uname}[ $stuid ]).' '.&mt('This username has been dropped from the institutional classlist, but the same student/employee ID is used for user: [_1] who still appears in the institutional classlist.',$match).' '.&mt('You may need to move the student data files for user: [_1] to [_2]',$uname,$match).' '.&mt('Because of this, user [_1] has not been dropped from the course.',$uname).$linefeed;
449: push @saved,$uname;
450: }
451: } elsif (@saved == 0) {
452: # Check enrollment count for institutional section of student to be dropped
453: if ($$currlist{$uname}[$instidx]) {
454: if (exists($classcount{$$currlist{$uname}[$instidx]})) {
455: if ($classcount{$$currlist{$uname}[$instidx]} == 0) {
456: if ($autofailsafe) {
457: push(@{$delaydrops{$$currlist{$uname}[$instidx]}},$uname);
458: next;
459: }
460: }
461: }
462: }
463: my $drop_reply = &Apache::lonnet::modifystudent($dom,$uname,'','','',undef,undef,undef,undef,$$currlist{$uname}[$sec],time,undef,undef,undef,undef,'auto','',$cid,'',$context);
464: if ($drop_reply !~ /^ok/) {
465: $$logmsg .= &mt('An error occurred during the attempt to expire the [_1] from the old section [_2] - [_3].',$uname,$$currlist{$uname}[$sec],$drop_reply).$linefeed;
466: } else {
467: $dropcount ++;
468: my %userenv = &Apache::lonnet::get('environment',['firstname','lastname','id'],$dom,$uname);
469: $dropresult .= $userenv{'firstname'}." ".$userenv{'lastname'}." (".$userenv{'id'}.") - ".$uname.' '.&mt("dropped from section: '[_1]'.",$$currlist{$uname}[$sec]).$linefeed;
470: if ($context eq 'automated') {
471: $$logmsg .= &mt('User [_1] student role expired from course.',$uname).$linefeed;
472: }
473: }
474: }
475: }
476: }
477: }
478: if (scalar(keys(%delaydrops)) > 0) {
479: foreach my $class (keys(%delaydrops)) {
480: if (ref($delaydrops{$class}) eq 'ARRAY') {
481: if ($autofailsafe < scalar(@{$delaydrops{$class}})) {
482: $$logmsg .= &mt('The following students were not expired from the old section [_1] because the enrollment count retrieved for that institutional section was zero, and the number of students with roles to expire exceeded the failsafe threshold of [_2]:',$class,$autofailsafe);
483: if ($context eq "updatenow") {
484: $$logmsg .= '<br />'.join('<br />',@{$delaydrops{$class}}).$linefeed;
485: } elsif ($context eq "automated") {
486: $$logmsg .= $linefeed.join($linefeed,@{$delaydrops{$class}}).$linefeed;
487: }
488: } else {
489: foreach my $uname (@{$delaydrops{$class}}) {
490: my $drop_reply = &Apache::lonnet::modifystudent($dom,$uname,'','','',undef,undef,undef,undef,$$currlist{$uname}[$sec],time,undef,undef,undef,undef,'auto','',$cid,'',$context);
491: if ($drop_reply !~ /^ok/) {
492: $$logmsg .= &mt('An error occurred during the attempt to expire the [_1] from the old section [_2] - [_3].',$uname,$$currlist{$uname}[$sec],$drop_reply).$linefeed;
493: } else {
494: $dropcount ++;
495: my %userenv = &Apache::lonnet::get('environment',['firstname','lastname','id'],$dom,$uname);
496: $dropresult .= $userenv{'firstname'}." ".$userenv{'lastname'}." (".$userenv{'id'}.") - ".$uname.' '.&mt("dropped from section: '[_1]'.",$$currlist{$uname}[$sec]).$linefeed;
497: if ($context eq 'automated') {
498: $$logmsg .= &mt('User [_1] student role expired from course.',$uname).$linefeed;
499: }
500: }
501: }
502: }
503: }
504: }
505: }
506: }
507:
508: # Terminated explictly allowed access to student creation/modification
509: # and group membership changes
510: if ($context eq 'automated') {
511: delete($env{'allowed.cst'});
512: delete($env{'allowed.mdg'});
513: }
514: if ($enrollcount > 0) {
515: if ($context eq "updatenow") {
516: $addresult = substr($addresult,0,rindex($addresult,"<li>"));
517: $addresult = &mt("The following [quant,_1,student was,students were] added to this LON-CAPA course:",$enrollcount).'<br/><ul><li>'.$addresult.'</ul><br/><br/>';
518: } else {
519: $addresult = &mt("The following [quant,_1,student was,students were] added to this LON-CAPA course:",$enrollcount)."\n\n".$addresult."\n\n";
520: }
521: }
522: if ($dropcount > 0) {
523: if ($context eq "updatenow") {
524: $dropresult = substr($dropresult,0,rindex($dropresult,"<li>"));
525: $dropresult = &mt("The following [quant,_1,student was,students were] expired from this LON-CAPA course:",$dropcount).'<br/><ul><li>'.$dropresult.'</ul><br/><br/>';
526: } else {
527: $dropresult = &mt("The following [quant,_1,student was,students were] expired from this LON-CAPA course:",$dropcount)."\n\n".$dropresult."\n\n";
528: }
529: }
530: if ($switchcount > 0) {
531: if ($context eq "updatenow") {
532: $switchresult = substr($switchresult,0,rindex($switchresult,"<li>"));
533: $switchresult = &mt("The following [quant,_1,student] switched sections in this LON-CAPA course:",$switchcount).'<br/><ul><li>'.$switchresult.'</ul><br/><br/>';
534: } else {
535: $switchresult = &mt("The following [quant,_1,student] switched sections in this LON-CAPA course:",$switchcount)."\n\n".$switchresult."\n\n";
536: }
537: }
538: if ( ($adds) && ($enrollcount == 0) ) {
539: $addresult = &mt('There were no new students to add to the course.');
540: if ($context eq "updatenow") {
541: $addresult .="<br/><br/>";
542: } else {
543: $addresult .="\n";
544: }
545: }
546: if ( ($drops) && ($dropcount == 0) ) {
547: $dropresult = &mt('There were no students with roles to expire because all active students previously added to the course from institutional classlist(s) are still officially registered.');
548: if ($context eq "updatenow") {
549: $dropresult .="<br/>";
550: } else {
551: $dropresult .="\n";
552: }
553: }
554: my $changecount = $enrollcount + $dropcount + $switchcount;
555: return ($changecount,$addresult.$photoresult.$dropresult.$switchresult);
556: }
557:
558: sub create_newuser {
559: my ($args,$logmsg,$newusermsg,$enrollcount,$addresult,$longroles,
560: $courseinfo,$called_context) = @_;
561: my $auth = $args->{'auth'};
562: my $authparam = $args->{'authparam'};
563: my $emailenc = $args->{'emailenc'};
564: my $udom = $args->{'udom'};
565: my $uname = $args->{'uname'};
566: my $pid = $args->{'pid'};
567: my $first = $args->{'first'};
568: my $middle = $args->{'middle'};
569: my $last = $args->{'last'} ;
570: my $gene = $args->{'gene'};
571: my $usec = $args->{'usec'};
572: my $end = $args->{'end'};
573: my $start = $args->{'start'};
574: my $emailaddr = $args->{'emailaddr'};
575: my $cid = $args->{'cid'};
576: my $crs = $args->{'crs'};
577: my $cdom = $args->{'cdom'};
578: my $context = $args->{'context'};
579: my $linefeed = $args->{'linefeed'};
580: my $role = $args->{'role'};
581: my $inststatus = $args->{'inststatus'};
582: my $credits = $args->{'credits'};
583: my $instsec = $args->{'instsec'};
584: my $create_passwd = 0;
585: my $authchk = '';
586: my $outcome;
587: unless ($authparam eq '') { $authchk = 'ok'; };
588: # If no account exists and passwords should be generated
589: if ($auth eq "internal") {
590: if ($authparam eq '') {
591: $authparam = &create_password($udom);
592: if ($authparam eq '') {
593: $authchk = '';
594: } else {
595: $create_passwd = 1;
596: $authchk = 'ok';
597: }
598: }
599: } elsif ($auth eq "localauth") {
600: ($authparam,$create_passwd,$authchk) = &Apache::lonnet::auto_create_password($crs,$cdom,$authparam,$udom);
601: } elsif ($auth =~ m/^krb/) {
602: if ($authparam eq '') {
603: $$logmsg .= &mt('No Kerberos domain was provided for the new user - [_1], so the new user was not enrolled in the course',$uname).$linefeed;
604: $authchk = 'invalid';
605: }
606: } else {
607: $authchk = 'invalid';
608: $$logmsg .= &mt('An invalid authentication type was provided for the new user - [_1], so the user was not enrolled in the course.',$uname).$linefeed;
609: }
610: if ($authchk eq 'ok') {
611: # Now create user.
612: my $type = 'auto';
613: my $userurl = '/'.$cdom.'/'.$crs;
614: if ($usec ne '') {
615: $userurl .= '/'.$usec;
616: }
617: if ($context eq 'createowner' || $context eq 'createcourse') {
618: my $result = &Apache::lonnet::modifyuser($udom,$uname,$pid,$auth,$authparam,$first,$middle,$last,$gene,'1',undef,$emailaddr);
619: if ($result eq 'ok' && $context eq 'createcourse') {
620: $outcome = &Apache::loncommon::commit_standardrole($udom,$uname,$userurl,$role,$start,$end,$cdom,$crs,$usec,$called_context);
621: unless ($outcome =~ /^Error:/) {
622: $outcome = 'ok';
623: }
624: } else {
625: $outcome = $result;
626: }
627: } else {
628: $outcome=&Apache::lonnet::modifystudent($udom,$uname,$pid,$auth,$authparam,$first,$middle,$last,$gene,$usec,$end,$start,'',undef,$emailaddr,'auto','',$cid,'',$called_context,$inststatus,$credits,$instsec);
629: }
630: if ($outcome eq 'ok') {
631: my $access = &showaccess($end,$start);
632: my $showsec = $usec;
633: if ($usec eq '') {
634: $showsec = &mt('none');
635: }
636: $$addresult .= "$first $last ($pid) - $uname ".&mt("enrolled in section: '[_1]'.",$showsec).$access.$linefeed;
637: unless ($context eq 'createowner' || $context eq 'createcourse') {
638: $$enrollcount ++;
639: }
640: if ($called_context eq 'automated') {
641: $$logmsg .= &mt('New [_1] user [_2] added successfully.',$udom,$uname);
642: }
643: unless ($emailenc eq '' || $context eq 'createowner' || $context eq 'createcourse') {
644: my %emailHash;
645: $emailHash{'critnotification'} = $emailenc;
646: $emailHash{'notification'} = $emailenc;
647: $emailHash{'permanentemail'} = $emailenc;
648: my $putresult = &Apache::lonnet::put('environment',\%emailHash,$udom,$uname);
649: }
650: if ($create_passwd) {
651: # Send e-mail with initial password to new user at $emailaddr.
652: # If e-mail address is invalid, send password via message to courseowner i
653: # (if automated call) or to user if roster update.
654: if ($emailaddr eq '') {
655: $$newusermsg .= &mt(' username: [_1], password: [_2]',$uname,$authparam).$linefeed."\n";
656: } else {
657: my $subject = &mt('New LON-CAPA account');
658: my $body;
659: my $portalurl = 'http://'.$ENV{'SERVER_NAME'};
660: my $protocol = 'http';
661: my $lonhost=&Apache::lonnet::domain($udom,'primary');
662: if ($lonhost ne '') {
663: my $ip = &Apache::lonnet::get_host_ip($lonhost);
664: if ($Apache::lonnet::protocol{$lonhost} eq 'https') {
665: $protocol = 'https';
666: }
667: if ($ip ne '') {
668: $portalurl = $protocol.'://'.$ip
669: }
670: }
671: if ($context eq 'createowner') {
672: $body = &mt('A user account has been created for you while creating your new course in the LON-CAPA course management and online homework system.')."\n\n".&mt('You should log-in to the system using the following credentials:')."\n".&mt('username: ').$uname."\n".&mt('password: ').$authparam."\n\n".&mt('The URL you should use to access the LON-CAPA system at your institution is: ').$portalurl."\n\n";
673: } elsif ($context eq 'createcourse') {
674: $body = &mt('You have been assigned the role of [_1] in a new course: [_2] - [_3] in the LON-CAPA course management and online homework system.',$$longroles{$role},$$courseinfo{'description'},$$courseinfo{'inst_code'}).' '.&mt('As you did not have an existing user account in the system, one has been created for you.')."\n\n".&mt("You should log-in to the system using the following credentials:\nusername: [_1]\npassword: [_2]",$uname,$authparam)."\n\n".&mt('The URL you should use to access the LON-CAPA system at your institution is: ').$portalurl."\n\n";
675: } else {
676: my $access_start = 'immediately';
677: if ($start > 0) {
678: $access_start = localtime($start)
679: }
680: $body =
681: &mt('You have been enrolled in the LON-CAPA system at your institution, because you are a registered student in a class which is using the LON-CAPA course management and online homework system.')."\n\n"
682: .&mt("You should log-in to the system using the following credentials:\nusername: [_1]\npassword: [_2]",$uname,$authparam)."\n\n"
683: .&mt('The URL you should use to access the LON-CAPA system at your institution is: ').$portalurl."\n\n"
684: .&mt('When you log-in you will be able to access the LON-CAPA course for [_1] - [_2] starting [_3].',$$courseinfo{'description'},$$courseinfo{'inst_code'},$access_start)."\n";
685: }
686: &Apache::lonmsg::sendemail($emailaddr,$subject,$body);
687: }
688: if ($called_context eq 'automated') {
689: $$logmsg .= &mt(' Initial password - sent to ').$emailaddr.$linefeed;
690: }
691: } else {
692: if ($called_context eq 'automated') {
693: $$logmsg .= $linefeed;
694: }
695: }
696: } else {
697: $$logmsg .= &mt('An error occurred adding new user [_1] - [_2].',$uname,$outcome).$linefeed;
698: }
699: } else {
700: $$logmsg .= &mt('An error occurred adding the new user [_1] because the authcheck failed for authtype [_2] and parameter [_3].',$uname,$auth,$authparam).' '.&mt('The authcheck response was [_1].',$authchk).$linefeed;
701: }
702: return $outcome;
703: }
704:
705: sub prepare_add {
706: my ($authtype,$autharg,$enddate,$startdate,$stuinfo,$place,$dom,$uname,$auth,$authparam,$first,$middle,$last,$gene,$usec,$end,$start,$emailaddr,$pid,$emailenc) = @_;
707: $$auth = $$stuinfo[ $$place{'authtype'} ];
708: $$authparam = $$stuinfo[ $$place{'autharg'} ];
709: $$first = $$stuinfo[ $$place{'firstname'} ];
710: $$middle = $$stuinfo[ $$place{'middlename'} ];
711: $$last = $$stuinfo[ $$place{'lastname'} ];
712: $$gene = $$stuinfo[ $$place{'generation'} ];
713: $$usec = $$stuinfo[ $$place{'groupID'} ];
714: $$end = $$stuinfo[ $$place{'enddate'} ];
715: $$start = $$stuinfo[ $$place{'startdate'} ];
716: $$emailaddr = $$stuinfo[ $$place{'email'} ];
717: $$pid = $$stuinfo[ $$place{'studentID'} ];
718:
719: # remove non alphanumeric values from section
720: $$usec =~ s/\W//g;
721:
722: unless ($$emailaddr =~/^[^\@]+\@[^\@]+$/) { $$emailaddr =''; }
723: $$emailenc = &HTML::Entities::encode($$emailaddr,'<>&"');
724:
725: # Use course defaults where entry is absent
726: if ( ($$auth eq '') || (!defined($$auth)) ) {
727: $$auth = $authtype;
728: }
729: if ( ($$authparam eq '') || (!defined($$authparam)) ) {
730: $$authparam = $autharg;
731: }
732: if ( ($$end eq '') || (!defined($$end)) ) {
733: $$end = $enddate;
734: }
735: if ( ($$start eq '') || (!defined($$start)) ) {
736: $$start = $startdate;
737: }
738: # Clean up whitespace
739: foreach ($dom,$uname,$pid,$first,$middle,$last,$gene,$usec) {
740: $$_ =~ s/(\s+$|^\s+)//g;
741: }
742: return;
743: }
744:
745: sub execute_add {
746: my ($context,$caller,$uname,$dom,$auth,$authparam,$first,$middle,$last,
747: $gene,$pid,$usec,$end,$start,$emailenc,$credits,$instsec,$cid,$addresult,
748: $enrollcount,$linefeed,$logmsg) = @_;
749: # Get the user's information and authentication
750: my %userenv = &Apache::lonnet::get('environment',['firstname','middlename','lastname','generation','id','critnotification','notification','permanentemail','inststatus'],$dom,$uname);
751: my ($tmp) = keys(%userenv);
752: if ($tmp =~ /^(con_lost|error)/i) {
753: %userenv = ();
754: }
755: # Get the user's e-mail address
756: if ($userenv{critnotification} =~ m/%40/) {
757: unless ($emailenc eq $userenv{critnotification}) {
758: $$logmsg .= &mt('Current critical notification e-mail - [_1] for [_2] is different to e-mail address in institutional classlist - [_3].',
759: $userenv{critnotification},$uname,$emailenc).
760: $linefeed;
761: }
762: }
763: if ($userenv{notification} =~ m/%40/) {
764: unless ($emailenc eq $userenv{notification}) {
765: $$logmsg .= &mt('Current standard notification e-mail - [_1] for [_2] is different to e-mail address in institutional classlist - [_3].',
766: $userenv{notification},$uname,$emailenc).
767: $linefeed;
768: }
769: }
770: if ($userenv{permanentemail} =~ m/%40/) {
771: unless ($emailenc eq $userenv{permanentemail}) {
772: $$logmsg .= &mt('Current permanent e-mail
773: - [_1] for [_2] is different to e-mail address in institutional classlist - [_3]',$userenv{permanentemail},$uname,$emailenc).$linefeed;
774: }
775: }
776: my $krbdefdom = '';
777: my $currentauth=&Apache::lonnet::queryauthenticate($uname,$dom);
778: if ($currentauth=~/^(krb[45]):(.*)/) {
779: $currentauth = $1;
780: $krbdefdom = $2;
781: } elsif ($currentauth=~ /^(unix|internal|localauth):/) {
782: $currentauth = $1;
783: } else {
784: $$logmsg .= &mt('Invalid authentication method [_1] for [_2].',$currentauth,$uname).$linefeed;
785: }
786: # Report if authentication methods are different.
787: if ($currentauth ne $auth) {
788: $$logmsg .= &mt("Authentication type mismatch for [_1] - '[_2]' in system, '[_3]' based on information in classlist or default for this course.",$uname,$currentauth,$auth).$linefeed;
789: } elsif ($auth =~ m/^krb/) {
790: if ($krbdefdom ne $authparam) {
791: $$logmsg .= &mt("Kerberos domain mismatch for [_1] - '[_2]' in system, '[_3]' based on information in classlist or default for this course.",$uname,$krbdefdom,$authparam).$linefeed;
792: }
793: }
794:
795: # Check user data
796: if ($first ne $userenv{'firstname'} ||
797: $middle ne $userenv{'middlename'} ||
798: $last ne $userenv{'lastname'} ||
799: $gene ne $userenv{'generation'} ||
800: $pid ne $userenv{'id'} ||
801: $emailenc ne $userenv{'permanentemail'} ) {
802: # Make the change(s)
803: my %changeHash;
804: $changeHash{'firstname'} = $first;
805: $changeHash{'middlename'} = $middle;
806: $changeHash{'lastname'} = $last;
807: $changeHash{'generation'} = $gene;
808: $changeHash{'id'} = $pid;
809: $changeHash{'permanentemail'} = $emailenc;
810: my $putresult = &Apache::lonnet::put('environment',\%changeHash,$dom,$uname);
811: if ($putresult eq 'ok') {
812: $$logmsg .= &mt('User information updated for user: [_1] prior to enrollment.',$uname).$linefeed;
813: } else {
814: $$logmsg .= &mt('There was a problem modifying user data for existing user - [_1] -error: [_2], enrollment will still be attempted.',$uname,$putresult).$linefeed;
815: }
816: }
817:
818: # Assign the role of student in the course.
819: my $classlist_reply =
820: &Apache::lonnet::modify_student_enrollment($dom,$uname,$pid,$first,$middle,
821: $last,$gene,$usec,$end,$start,
822: 'auto','',$cid,'',$context,
823: $credits,$instsec);
824: if ($classlist_reply eq 'ok') {
825: my $access = &showaccess($end,$start);
826: my $showsec = $usec;
827: if ($usec eq '') {
828: $showsec = &mt('none');
829: }
830: if ($caller eq 'switchtype') {
831: $$logmsg .= &mt("Existing user [_1] detected in institutional classlist - switched from 'manual' to 'auto' enrollment in section [_2].",$uname,$showsec).$access.$linefeed;
832: } elsif ($caller eq 'newstudent') {
833: $$enrollcount ++;
834: $$addresult .= "$first $last ($pid) - $uname ".&mt("enrolled in section '[_1]'.",$showsec).$access.$linefeed;
835: }
836: if ($context eq 'automated') {
837: $$logmsg .= &mt('Existing [_1] user [_2] enrolled successfully.',$dom,$uname).$linefeed;
838: }
839: } else {
840: $$logmsg .= &mt('There was a problem updating the classlist db file for user [_1] to show the new enrollment -error: [_2], so no enrollment occurred for this user.',$uname,$classlist_reply).$linefeed;
841: }
842: return;
843: }
844:
845: sub datechange_check {
846: my ($oldstart,$oldend,$startdate,$enddate) = @_;
847: my $datechange = 0;
848: unless ($oldstart eq $startdate) {
849: $datechange = 1;
850: }
851: if (!$datechange) {
852: if (!$oldend) {
853: if ($enddate) {
854: $datechange = 1;
855: }
856: } elsif ($oldend ne $enddate) {
857: $datechange = 1;
858: }
859: }
860: return $datechange;
861: }
862:
863: sub showaccess {
864: my ($end,$start) = @_;
865: my $showstart;
866: my $showend;
867: if ( (!$start) || ($start <= time) ) {
868: $showstart = 'immediately';
869: } else {
870: $showstart = &Apache::lonlocal::locallocaltime($start);
871: }
872: if (!$end) {
873: $showend = 'no end date';
874: } else {
875: $showend = &Apache::lonlocal::locallocaltime($end);
876: }
877: my $access_msg = ' '.&mt('Access starts: [_1], ends: [_2].',$showstart,$showend);
878: return $access_msg;
879: }
880:
881: sub parse_classlist {
882: my ($tmpdir,$dom,$crs,$class,$placeref,$groupID,$studentsref) = @_;
883: my $xmlfile = $tmpdir."/tmp/".$dom."_".$crs."_".$class."_classlist.xml";
884: my $uname = '';
885: my @state;
886: my @items = ('autharg','authtype','email','firstname','generation','lastname','middlename','studentID','credits','inststatus');
887: my $p = HTML::Parser->new
888: (
889: xml_mode => 1,
890: start_h =>
891: [sub {
892: my ($tagname, $attr) = @_;
893: push @state, $tagname;
894: if ("@state" eq "students student") {
895: $uname = $attr->{username};
896: $$studentsref{$uname}[ $$placeref{'groupID'} ] = $groupID;
897: $$studentsref{$uname}[ $$placeref{'instsec'} ] = $class;
898: }
899: }, "tagname, attr"],
900: text_h =>
901: [sub {
902: my ($text) = @_;
903: if ("@state" eq "students student startdate") {
904: my $start = $text;
905: unless ($text eq '') {
906: $start = &process_date($text);
907: }
908: $$studentsref{$uname}[ $$placeref{'startdate'} ] = $start;
909: } elsif ("@state" eq "students student enddate") {
910: my $end = $text;
911: unless ($text eq '') {
912: $end = &process_date($text);
913: }
914: $$studentsref{$uname}[ $$placeref{'enddate'} ] = $end;
915: } else {
916: foreach my $item (@items) {
917: if ("@state" eq "students student $item") {
918: $$studentsref{$uname}[ $$placeref{$item} ] = $text;
919: }
920: }
921: }
922: }, "dtext"],
923: end_h =>
924: [sub {
925: my ($tagname) = @_;
926: pop @state;
927: }, "tagname"],
928: );
929:
930: $p->parse_file($xmlfile);
931: $p->eof;
932: if (-e "$xmlfile") {
933: unlink $xmlfile;
934: }
935: return;
936: }
937:
938: sub process_date {
939: my $timestr = shift;
940: my $timestamp = '';
941: if ($timestr =~ m/^\d{4}:\d{2}:\d{2}/) {
942: my @entries = split/:/,$timestr;
943: for (my $j=0; $j<@entries; $j++) {
944: if ( length($entries[$j]) > 1 ) {
945: $entries[$j] =~ s/^0//;
946: }
947: }
948: $entries[1] = $entries[1] - 1;
949: $timestamp = timelocal($entries[5],$entries[4],$entries[3],$entries[2],$entries[1],$entries[0]);
950: }
951: return $timestamp;
952: }
953:
954: sub create_password {
955: my ($udom) = @_;
956: my %passwdconf = &Apache::lonnet::get_passwdconf($udom);
957: my ($min,$max,@chars);
958: $min = $Apache::lonnet::passwdmin;
959: if (ref($passwdconf{'chars'}) eq 'ARRAY') {
960: if ($passwdconf{'min'} =~ /^\d+$/) {
961: if ($passwdconf{'min'} > $min) {
962: $min = $passwdconf{'min'};
963: }
964: }
965: if ($passwdconf{'max'} =~ /^\d+$/) {
966: $max = $passwdconf{'max'};
967: }
968: @chars = @{$passwdconf{'chars'}};
969: }
970: my @letts = qw(b c d f g h j k l m n p q r s t v w x y z);
971: my (@included,%reqd);
972: if (@chars) {
973: map { $reqd{$_} = 1; } @chars;
974: }
975: if ($reqd{'uc'}) {
976: my $letter = $letts[int( rand(21) )];
977: $letter =~ tr/a-z/A-Z/;
978: if ($letter ne '') {
979: push(@included,$letter);
980: }
981: }
982: if ($reqd{'lc'}) {
983: my $letter = $letts[int( rand(21) )];
984: if ($letter ne '') {
985: push(@included,$letter);
986: }
987: }
988: if ($reqd{'num'}) {
989: my $number = int( rand(10) );
990: if ($number ne '') {
991: push(@included,$number);
992: }
993: }
994: if ($reqd{'spec'}) {
995: my @specs = qw(! # * & _ - + $);
996: my $special = $specs[int( rand(8) )];
997: if ($special ne '') {
998: push(@included,$special);
999: }
1000: }
1001: my $start = 0;
1002: if (scalar(@included) > 0) {
1003: $start = scalar(@included);
1004: }
1005: my $end = 8;
1006: if ($min =~ /^\d+$/) {
1007: if ($min > $end) {
1008: $end = $min;
1009: }
1010: }
1011: for (my $i=$start; $i<$end; $i++) {
1012: my $lettnum = int (rand 2);
1013: my $item = '';
1014: if ($lettnum) {
1015: $item = $letts[int( rand(21) )];
1016: my $uppercase = int(rand 2);
1017: if ($uppercase) {
1018: $item =~ tr/a-z/A-Z/;
1019: }
1020: } else {
1021: $item = int( rand(10) );
1022: }
1023: if ($item ne '') {
1024: push(@included,$item);
1025: }
1026: }
1027: my $passwd = join('',&Math::Random::random_permutation(@included));
1028: return $passwd;
1029: }
1030:
1031: sub get_courseinfo {
1032: my ($dom,$crs,$courseinfo) = @_;
1033: my $owner;
1034: if (defined($dom) && defined($crs)) {
1035: my %settings = &Apache::lonnet::get('environment',['internal.coursecode','internal.showphoto','description','internal.defaultcredits'],$dom,$crs);
1036: if ( defined($settings{'internal.coursecode'}) ) {
1037: $$courseinfo{'inst_code'} = $settings{'internal.coursecode'};
1038: }
1039: if ( defined($settings{'description'}) ) {
1040: $$courseinfo{'description'} = $settings{'description'};
1041: }
1042: if ( defined($settings{'internal.showphoto'}) ) {
1043: $$courseinfo{'showphoto'} = $settings{'internal.showphoto'};
1044: }
1045: if ( defined($settings{'internal.credithours'}) ) {
1046: $$courseinfo{'defaultcredits'} = $settings{'internal.defaultcredits'};
1047: }
1048: }
1049: return;
1050: }
1051:
1052: sub place_hash {
1053: my %place = (
1054: autharg => 0,
1055: authtype => 1,
1056: email => 2,
1057: enddate => 3,
1058: firstname => 4,
1059: generation => 5,
1060: groupID => 6,
1061: lastname => 7,
1062: middlename => 8,
1063: startdate => 9,
1064: studentID => 10,
1065: credits => 11,
1066: inststatus => 12,
1067: instsec => 13,
1068: );
1069: return %place;
1070: }
1071:
1072: sub photo_response_types {
1073: my %lt = &Apache::lonlocal::texthash(
1074: 'same' => 'remained unchanged',
1075: 'update' => 'were updated',
1076: 'new' => 'were added',
1077: 'missing' => 'were missing',
1078: 'error' => 'were not imported because an error occurred',
1079: 'nouser' => 'were for users without accounts',
1080: 'noid' => 'were for users without student/employee IDs',
1081: );
1082: return %lt;
1083: }
1084:
1085:
1086: 1;
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