Annotation of loncom/enrollment/localenroll.pm, revision 1.64

1.5       albertel    1: # functions to glue school database system into Lon-CAPA for 
                      2: # automated enrollment
1.64    ! raeburn     3: # $Id: localenroll.pm,v 1.63 2022/01/14 16:27:20 raeburn Exp $
1.5       albertel    4: #
                      5: # Copyright Michigan State University Board of Trustees
                      6: #
                      7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      8: #
                      9: # LON-CAPA is free software; you can redistribute it and/or modify
                     10: # it under the terms of the GNU General Public License as published by
                     11: # the Free Software Foundation; either version 2 of the License, or
                     12: # (at your option) any later version.
                     13: #
                     14: # LON-CAPA is distributed in the hope that it will be useful,
                     15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     17: # GNU General Public License for more details.
                     18: #
                     19: # You should have received a copy of the GNU General Public License
                     20: # along with LON-CAPA; if not, write to the Free Software
                     21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     22: #
                     23: # /home/httpd/html/adm/gpl.txt
                     24: #
                     25: # http://www.lon-capa.org/
                     26: #
1.32      jms        27: 
                     28: =pod
                     29: 
                     30: =head1 NAME
                     31: 
                     32: localenroll
                     33: 
                     34: =head1 SYNOPSIS
                     35: 
                     36: This is part of the LearningOnline Network with CAPA project
                     37: described at http://www.lon-capa.org.
                     38: 
                     39: 
                     40: =head1 NOTABLE SUBROUTINES
                     41: 
                     42: =cut
                     43: 
1.4       raeburn    44: package localenroll;
                     45: 
                     46: use strict;
1.6       albertel   47: 
1.32      jms        48: =pod
1.58      raeburn    49: 
                     50: =over
1.32      jms        51:  
                     52: =item run()
                     53:  set this to return 1 if you want the auto enrollment to run
                     54: 
                     55:  Beginning with LON-CAPA version 2.4, use of this routine is
                     56:  deprecated.  Whether or not Autoenroll.pl should run is set
                     57:  by the Domain Coordinator via "Set domain configuration",
                     58:  provided in the Domain Management section of the Main menu. 
                     59: 
                     60: =cut
1.6       albertel   61: 
1.9       raeburn    62: sub run() {
                     63:     my $dom = shift;
                     64:     return 0;
                     65: }
1.4       raeburn    66: 
1.32      jms        67: 
                     68: =pod
                     69: 
                     70: =item fetch_enrollment()
                     71: 
                     72:  connects to the institutional classlist data source,
                     73:  reads classlist data and stores in an XML file
                     74:  in /home/httpd/perl/tmp/
                     75: 
                     76:  classlist files are named as follows:
                     77: 
                     78:  DOMAIN_COURSE_INSTITUTIONALCODE_classlist.xml
                     79: 
                     80:  e.g., msu_43551dedcd43febmsul1_fs03nop590001_classlist.xml
                     81:  where DOMAIN = msu  COURSE = 43551dedcd43febmsul1 
                     82:  INSTITUTIONALCODE = fs03nop590001 
                     83:  (MSU's course naming scheme - fs03 = Fall semester 2003, nop =
                     84:  department name, 590 = course number, 001 = section number.)
                     85: 
                     86:  fetch_enrollment requires three arguments -
                     87:  $dom - DOMAIN e.g., msu
                     88:  $affiliatesref - a reference to a hash of arrays that contains LON-CAPA 
                     89:  courses that are to be updated as keys, and institutional coursecodes 
                     90:  contributing enrollment to that LON-CAPA course as elements in each array.
                     91:  $replyref - a reference to a hash that contains LON-CAPA courses
                     92:  that are to be updated as keys, and the total enrollment count in all 
                     93:  affiliated sections, as determined from institutional data as hash elements. 
                     94: 
                     95:  As an example, if fetch_enrollment is called to retrieve institutional
                     96:  classlists for a single LON-CAPA course - 43551dedcd43febmsul1 which 
                     97:  corresponds to fs03nop590, sections 001, 601 and 602 , and the course
                     98:  also accommodates enrollment from a crosslisted course in the ost
                     99:  department - fs03ost580002:
                    100: 
                    101:  the affiliatesref would be a reference to %affiliates which would be:
                    102: 
                    103:  @{$affiliates{'43551dedcd43febmsul1'}} =
                    104:    ("fs03nop590001","fs03nop590601","fs03nop590602","fs03ost580002");
                    105: 
                    106:  fetch_enrollment would create four files in /home/httpd/perl/tmp/.
                    107:  msu_43551dedcd43febmsul1_fs03nop590001_classlist.xml
                    108:  msu_43551dedcd43febmsul1_fs03nop590601_classlist.xml
                    109:  msu_43551dedcd43febmsul1_fs03nop590602_classlist.xml
                    110:  msu_43551dedcd43febmsul1_fs03ost580002_classlist.xml
                    111: 
                    112:  In each file, student data would be stored in the following format
                    113:  
                    114:  <student username="smith">
                    115:   <autharg>MSU.EDU</autharg>
                    116:   <authtype>krb4</authtype>
                    117:   <email>smith@msu.edu</email>
                    118:   <enddate></enddate>
                    119:   <firstname>John</firstname>
                    120:   <generation>II</generation>
                    121:   <groupID>fs03nop590001</groupID>
                    122:   <lastname>Smith</lastname>
                    123:   <middlename>D</middlename>
                    124:   <startdate></startdate>
                    125:   <studentID>A12345678</studentID>
1.44      raeburn   126:   <credits></credits>
                    127:   <inststatus></inststatus>
1.32      jms       128:  </student>
                    129:  
                    130:  with the following at the top of the file
                    131: <?xml version="1.0" encoding="UTF-8"?>
                    132: <!DOCTYPE text>
                    133: <students>
                    134: 
                    135:  (all comment - s removed)
                    136: 
                    137:  and a closing:
                    138: </students>
                    139: 
                    140:  The <startdate> and the <enddate> are the activation date and expiration date
                    141:  for this student's role. If they are absent, then the default access start and
                    142:  default access end dates are used. The default access dates can be set when 
                    143:  the course is created, and can be modified using the Automated Enrollment
                    144:  Manager, or via the 'Upload a class list','Enroll a single student' or 
                    145:  'Modify student data' utilities in the Enrollment Manager, by checking the 
                    146:  'make these dates the default for future enrollment' checkbox. If no default 
1.60      raeburn   147:  dates have been set, then the student role will be active immediately, and will 
1.32      jms       148:  remain active until the role is explicitly expired using ENRL -> Drop students. 
                    149:  If dates are to included in the XML file, they should be in the format
                    150:  YYYY:MM:DD:HH:MM:SS (: separators required).
                    151: 
1.44      raeburn   152:  The <credits> tag need only be used if the credits earned by the students will 
                    153:  be different from the default for the course. The course default is set when the
                    154:  course is created and can be modifed by a Domain Coordinator via "View or
1.50      raeburn   155:  modify a course or community" on the DC's Main Menu screen.
1.44      raeburn   156: 
                    157:  A value for <inststatus> should be the institutional status used for students,
1.50      raeburn   158:  and should be one of the types defined in the "Institutional user types"
                    159:  section in the domain config screen for:
                    160:  "Default authentication/language/timezone/portal/types" 
                    161: 
                    162:  If no status types are defined for the domain this tag can be omitted.
                    163:  If Autoupdate.pl is enabled in your domain, updates to the institutional 
                    164:  status set here will be updated by Autoupdate.pl, should changes occur.
1.44      raeburn   165: 
1.32      jms       166:  If there were 10 students in fs03nop590001, 5 students in fs03nop59o601, 
                    167:  8 students in fs03nop590602, and 2 students in fs03ost580002,
                    168:  then $$reply{'43551dedcd43febmsul1'} = 25
                    169: 
                    170:  The purpose of the %reply hash is to detect cases where the institutional 
                    171:  enrollment is 0 (most likely due to a problem with the data source).
                    172:  In such a case, the LON-CAPA course roster is left unchanged (i.e., no
                    173:  students are expired, even if automated drops is enabled.
                    174:  
                    175:  fetch_enrollment should return a 0 or 1, depending on whether a connection
                    176:  could be established to the institutional data source.
                    177:  0 is returned if no connection could be made.
                    178:  1 is returned if connection was successful
                    179: 
                    180:  A return of 1 is required for the calling modules to perform LON-CAPA
                    181:  roster changes based on the contents of the XML classlist file(s), e,g,,
                    182:  msu_43551dedcd43febmsul1_fs03nop590001_classlist.xml
                    183: 
                    184:  XML classlist files are temporary. They are deleted after the enrollment 
                    185:  update process in the calling module is complete.
                    186: 
                    187: 
                    188: =cut
1.1       raeburn   189: 
                    190: sub fetch_enrollment {
1.7       matthew   191:     my ($dom,$affiliatesref,$replyref) = @_;
                    192:     foreach my $crs (sort keys %{$affiliatesref}) {
                    193:         $$replyref{$crs} = 0;
                    194:     }
                    195:     my $okflag = 0;
                    196:     return $okflag;
1.4       raeburn   197: }
                    198: 
1.32      jms       199: =pod
                    200: 
                    201: =item get_sections()
                    202: 
                    203:  This is called by the Automated Enrollment Manager interface
                    204:  (lonpopulate.pm) to create an array of valid sections for 
                    205:  a specific institutional coursecode.
                    206:  e.g., for MSU coursecode: fs03nop590
                    207:  ("001","601","602") would be returned
                    208: 
                    209:  If the array returned contains at least one element, then 
1.60      raeburn   210:  the interface offered to the course coordinator, lists
1.32      jms       211:  official sections and provides a checkbox to use to
                    212:  select enrollment in the LON-CAPA course from each official section.  
                    213: 
                    214:  get_sections takes two arguments - (a) the institutional coursecode
                    215:  (in the MSU case this is a concatenation of semester code, department
                    216:  and course number), and (b) the LON-CAPA domain that contains the course. 
                    217:  
                    218:  If there is no access to official course sections at your institution,
                    219:  then an empty array is returned, and the Automated Enrollment Manager
                    220:  interface will allow the course coordinator to enter section numbers
                    221:  in text boxes.
                    222:  
                    223: 
                    224: 
                    225: =cut
1.4       raeburn   226: 
                    227: sub get_sections {
1.9       raeburn   228:     my ($coursecode,$dom) = @_;
1.4       raeburn   229:     my @secs = ();
                    230:     return @secs;
1.1       raeburn   231: }
                    232: 
1.32      jms       233: =pod
                    234: 
                    235: =item new_course()
                    236: 
                    237:  This is called by loncreatecourse.pm and 
                    238:  lonpopulate.pm to record that fact that a new course section
                    239:  has been added to LON-CAPA that requires access to institutional data
                    240:  At MSU, this is required, as institutional classlists can only made
                    241:  available to faculty who are officially assigned to a course.
                    242:  
                    243:  The new_course subroutine is used to check that the course owner
                    244:  of the LON-CAPA course is permitted to access the institutional
                    245:  classlist for any course sections and crosslisted classes that
                    246:  the course coordinator wishes to have affiliated with the course.
                    247:  
                    248:  If access is permitted, then 'ok' is returned.
                    249:  The course section or crosslisted course will only be added to the list of
                    250:  affiliates if 'ok' is returned.
                    251: 
1.41      raeburn   252:  new_course takes three required arguments -
1.32      jms       253:  (a) the institutional courseID (in the MSU case this is a concatenation of 
                    254:  semester code, department code, course number, and section number
                    255:  e.g., fs03nop590001).
                    256:  (b) the course owner. This is the LON-CAPA username and domain of the course 
                    257:  coordinator assigned to the course when it is first created, in the form
                    258:  username:domain
                    259:  (c) the LON-CAPA domain that contains the course
                    260: 
1.58      raeburn   261:  new_course also takes optional fourth and fifth arguments -
1.41      raeburn   262:  (d) the course co-owners, as a comma-separated list of username:domain for
1.58      raeburn   263:  any co-owners.
                    264:  (e) database handle (might be set when new_course() is called by check_section
                    265:  routine within localenroll.pm).
1.41      raeburn   266: 
1.32      jms       267: =cut
1.4       raeburn   268: 
                    269: sub new_course  {
1.41      raeburn   270:     my ($course_id,$owner,$dom,$coowners) = @_;
1.4       raeburn   271:     my $outcome = 'ok';
                    272:     return $outcome;
1.1       raeburn   273: }
                    274: 
1.32      jms       275: =pod
                    276: 
                    277: =item validate_courseID()
                    278: 
                    279:  This is called whenever a new course section or crosslisted course
                    280:  is being affiliated with a LON-CAPA course (i.e., by loncreatecourse.pm
                    281:  and the Automated Enrollment Manager in lonpopulate.pm).
                    282:  A check is made that the courseID that the course coordinator wishes
                    283:  to affiliate with the course is valid according to the institutional
                    284:  schedule of official classes 
                    285: 
                    286:  A valid courseID is confirmed by returning 'ok'
                    287: 
                    288:  validate_courseID takes two arguments -
                    289:  (a) the institutional courseID (in the MSU case this is a concatenation of
                    290:  semester code, department code, course number, and section number
                    291:  e.g., fs03nop590001).
                    292:  (b) the LON-CAPA domain that contains the course
                    293: 
                    294: =cut  
1.4       raeburn   295: 
                    296: sub validate_courseID {
1.9       raeburn   297:     my ($course_id,$dom) = @_;
1.4       raeburn   298:     my $outcome = 'ok';
                    299:     return $outcome;   
                    300: }
1.1       raeburn   301: 
1.32      jms       302: =pod
                    303: 
1.36      raeburn   304: =item validate_instcode()
                    305: 
                    306: This is called when a request is being made for an official course.
                    307: A check is made that the institutional code for which a course is
                    308: is being requested is valid according to the institutional
                    309: schedule of official classes.
                    310: 
                    311: If the username of the course owner is provided, a more restrictive
                    312: test is used, namely that the requestor is listed as instructor of
                    313: record for the course in the institution's course schedule/database.
                    314: 
1.38      raeburn   315: validate_instcode takes three arguments -
1.36      raeburn   316:  (a) the LON-CAPA domain that will contain the course
                    317:  (b) the institutional code (in the MSU case this is a concatenation of
                    318:  semester code, department code, and course number, e.g., fs03nop590.
                    319:  (c) an optional institutional username for the course owner.
                    320: 
1.39      raeburn   321: An array is returned containing (a) the result of the check for a valid 
1.44      raeburn   322: instcode, (b) an (optional) course description, and (c) the default credits
                    323: earned by students when completing this course. If no institutional credits
                    324: value is available, the default credits for the course can be set via the
                    325: course request form, or via XML in a batch file, of via the web form used
                    326: by the Domain Coordinator to create new courses one at a time.
                    327: 
1.39      raeburn   328: A valid instcode is confirmed by returning 'valid'.
1.44      raeburn   329: 
1.39      raeburn   330: If no course description is available, '' should be set as
                    331: the value of the second item in the returned array.
                    332: 
1.36      raeburn   333: =cut
                    334: 
                    335: sub validate_instcode {
1.38      raeburn   336:     my ($dom,$instcode,$owner) = @_;
1.36      raeburn   337:     my $outcome = '';
1.39      raeburn   338:     my $description = '';
1.44      raeburn   339:     my $credits = '';
                    340:     return ($outcome,$description,$credits);
1.36      raeburn   341: }
                    342: 
                    343: =pod
                    344: 
1.60      raeburn   345: =item validate_crosslist_access()
                    346: 
                    347: This is called for an official course to check whether a course
                    348: with the institutional code can have access to enrollment data
                    349: from a cross-listed institutional section code, given a co-owner.
                    350: 
                    351: validate_crosslist_access() takes four arguments -
                    352: (a) the course's LON-CAPA domain 
                    353: (b) the institional course code assigned to the course
                    354: (c) the institutional course section code for the crosslisting
                    355: (d) the co-owner to check for affiliation with the crosslisting 
                    356:     (username:domain).
                    357: 
                    358: A combination of (a), (b), (c) and (d) with access to enrollment 
                    359: data, as per institutional policies, is confirmed by returning 'valid'.
                    360: 
                    361: =cut
                    362: 
                    363: sub validate_crosslist_access {
                    364:     my ($dom,$instcode,$inst_xlist,$coowner) = @_;
                    365:     my $outcome = '';
                    366:     return $outcome;
                    367: }
                    368: 
                    369: =pod
                    370: 
1.38      raeburn   371: =item validate_crsreq()
                    372: 
                    373: This is used to check whether a course request should be processed
                    374: automatically, or held in a queue pending administrative action at
                    375: the institution.
                    376: 
                    377: Course requests will trigger this check if the process type has been set 
1.54      raeburn   378: to 'validate' for the course type (official, unofficial, textbook, 
                    379: placement or community) and the requestor's affiliation.  Whether
                    380: "validate" is an available option in the Domain Configuration menu 
                    381: is controlled by auto_courserequest_checks(). 
1.38      raeburn   382: One scenario is where the request is for an official course, in which case
                    383: a check could be made that the requestor is listed as instructor of 
                    384: record for the course in the institution's course schedule/database.
                    385: 
                    386: Other scenarios are possible, and the routine can be customized according
                    387: to whatever rules a domain wishes to implement to run validations against
                    388: given the data passed in to the routine.
                    389: 
1.51      raeburn   390: validate_crsreq takes seven arguments -
1.38      raeburn   391:  (a) the LON-CAPA domain that will contain the course.
                    392:  (b) the username:domain for the course owner.
1.54      raeburn   393:  (c) the course type (official, unofficial,textbook, placement or community)
1.38      raeburn   394:  (d) a comma-separated list of institutional affiliations of 
                    395:      the course owner.
                    396:  (e) the institutional code (in the MSU case this is a concatenation of
1.46      raeburn   397:  semester code, department code, and course number, e.g., fs03nop590).
1.38      raeburn   398:  (f) a comma-separated list of institutional sections included in
                    399:      the course request (only applicable to official courses).
1.46      raeburn   400:  (g) an optional reference to a hash of custom form data.
1.52      raeburn   401:      The custom form data will come from crsreq_updates(), with one
                    402:      additional item: $custominfo->{'_LC_clonefrom'}, provided internally
                    403:      (the courseID of the LON-CAPA course being cloned).
1.38      raeburn   404: 
                    405: A valid courserequest is confirmed by returning 'process'.
1.46      raeburn   406: The following can be returned: process, rejected, pending, approval or 
                    407: error (with error condition - no :), followed by a : and then an optional message. 
1.38      raeburn   408: 
                    409: (a) process  - the requestor is the recorded instructor - create the course
1.52      raeburn   410: 
1.40      raeburn   411: (b) rejected - the requestor should never be requesting this course, reject the
1.38      raeburn   412:     request permanently
1.52      raeburn   413: 
1.38      raeburn   414: (c) pending - the requestor is not the recorded instructor, but could
                    415:     become so after administrative action at the institution. Put the
1.46      raeburn   416:     request in a queue and, if an official course, check 
                    417:     localenroll:validate_instcode() periodically until the status changes to 
                    418:     "valid".
1.52      raeburn   419: 
1.38      raeburn   420: (d) approval - the request will be held pending review by a Domain Coordinator.
1.52      raeburn   421: 
1.38      raeburn   422: (e) error (followed by the error condition).
                    423: 
                    424: =cut
                    425: 
                    426: sub validate_crsreq {
1.46      raeburn   427:     my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_;
1.38      raeburn   428:     my $outcome = 'approval';
                    429:     return $outcome;
                    430: }
                    431: 
                    432: =pod 
                    433: 
                    434: =item crsreq_checks()
                    435: 
                    436: This is used to determine whether the "validate" option should appear in the
                    437: possible choices for course request processing in the Domain Configuration 
                    438: menu for Course Requests. Ultimately it is called by domainprefs.pm (via: 
                    439: lonnet -> lond -> localenroll.pm) The domain configuration menu includes 
1.54      raeburn   440: a table where columns are course type (official, unofficial, textbook,
                    441: placement or community) and rows are institutional affiliations 
                    442: (e.g., Faculty, Staff, Student etc.).
1.38      raeburn   443: 
1.42      raeburn   444: crsreq_checks() takes three arguments: $dom, $reqtypes, $validations.
1.38      raeburn   445: $dom - the domain for which validation options are needed.
                    446: $reqtypes - ref to an ARRAY of course types (i.e., official, unofficial and community.
                    447: $validations - ref to a hash of a hash which will determine whether "validate"
                    448: will be one of the possible choices for each course type (outer hash key),
                    449: and institutional type (inner hash key).
                    450: 
                    451: For example to allow validate to be a choice for official classes for Faculty,
                    452: req_checks would include:
                    453: 
                    454: $validations{'official'}{'Faculty'} = 1;
                    455: 
                    456: This routine is closely tied to validate_crsreq(). "Validate" should not be
                    457: a possible choice in the domain configuration menu for a particular course
                    458: type/institutional affiliation, unless a corresponding validation code has
                    459: been implemented in validate_crsreq().
                    460: 
                    461: For example at MSU, official courses requested by Faculty will be validated
                    462: against the official schedule of classes to check that the requestor is one
                    463: of the instructors of record for the course.  In this case validate_crsreq()
                    464: includes a call to validate_instcode().
                    465: 
                    466: =cut
                    467: 
                    468: sub crsreq_checks {
                    469:     my ($dom,$reqtypes,$validations) = @_;
                    470:     if ((ref($reqtypes) eq 'ARRAY') && (ref($validations) eq 'HASH')) {
                    471:         my (%usertypes,@order);
                    472:         if (&inst_usertypes($dom,\%usertypes,\@order) eq 'ok') {
                    473:             foreach my $type (@{$reqtypes}) {
                    474:                 foreach my $inst_type (@order) {
                    475:                     $validations->{$type}{$inst_type} = 0;
                    476:                 }
                    477:             }
                    478:         }
                    479:     }
                    480:     return 'ok';
                    481: }
                    482: 
1.52      raeburn   483: =pod
                    484: 
                    485: =item crsreq_updates()
                    486: 
                    487: This is used to customize the LON-CAPA course request process.
                    488: There are two hash references: $incoming, and $outgoing; $incoming can
                    489: contain additional information collected from the requester, whereas $outgoing
                    490: can contain custom items to send back to lonrequestcourse.pm, which creates the
                    491: HTML displayed to the user during a course request.
                    492: 
                    493: Different key-value pairs may be returned to lonrequestcourse.pm in the $outgoing
                    494: hashref depending on the current action.  The available actions are:
                    495: review, prevalidate, process, created and queued.
                    496: 
                    497: One scenario would be to return HTML markup in: $outgoing->{'reviewweb'},
                    498: i.e., where the action is 'review', to prompt the user to provide additional
                    499: information as part of the course request, at the request review stage, 
                    500: (i.e,, the page which contains the button used to submit a completed course request).
                    501: 
                    502: The HTML could contain form elements (e.g., radio buttons etc.). The value(s)
                    503: selected by the requester in those form elements will be available in the incoming
                    504: hashref, for a subsequent action, if the corresponding keys have been included
                    505: in $outgoing->{'formitems'}, i.e., $outgoing will be hash of a hash.  If a
                    506: particular form item will the single valued, the value set for the key in the 
                    507: inner hash in $outgoing should be 1, otherwise, if it will be multi-valued,
                    508: the value should be multiple.
                    509: 
                    510: The $outgoing hashref can contain a 'formitems' key for both the prevalidate
                    511: and process actions, as calls to localenroll::crsreq_update() can originate
                    512: in lonrequestcourse::process_request() for both of those actions.
                    513: 
                    514: The retrieved form values are passed to localenroll::validate_crsreq() as the
                    515: optional seventh arg (a hashref) -- $custominfo.
                    516: 
                    517: =cut
                    518: 
1.45      raeburn   519: sub crsreq_updates {
                    520:     my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
1.47      raeburn   521:         $code,$accessstart,$accessend,$incoming,$outgoing) = @_;
1.45      raeburn   522:     unless (ref($outgoing) eq 'HASH') {
                    523:         return 'fail';
                    524:     }
                    525:     my %extrainfo;
                    526:     if (ref($incoming) eq 'HASH') {
                    527:         %extrainfo = %{$incoming};
                    528:     }
                    529:     if ($action eq 'review') {
                    530:         $outgoing->{'reviewweb'} = '';
1.46      raeburn   531:     } elsif ($action eq 'prevalidate') {
                    532:         $outgoing->{'formitems'} = {}; # key=>value, where key is form element name
                    533:                                        #             and value is multiple, if there
                    534:                                        #             are multiple form elements with
                    535:                                        #             the same name.
1.45      raeburn   536:     } elsif ($action eq 'process') {
                    537:         $outgoing->{'formitems'} = {}; # key=>value, where key is form element name
                    538:                                        #             and value is multiple, if there
                    539:                                        #             are multiple form elements with
1.46      raeburn   540:                                        #             the same name.
1.45      raeburn   541:     } elsif ($action eq 'created') {
                    542:         $outgoing->{'createdweb'} = '';
                    543:         $outgoing->{'createdmsg'} = [{
                    544:                                      mt => '',
                    545:                                      args => [],
                    546:                                     }];
1.48      raeburn   547:         $outgoing->{'createdactions'} = {
                    548:                                             environment => {},
                    549:                                         };
                    550:                                         # environment can contain key=>value for
                    551:                                         # items to set in the course environment.
                    552:                                         # These would be items which are NOT included
                    553:                                         # in the items set via options in the course
                    554:                                         # request form. Currently self-enrollment
                    555:                                         # settings are the only ones allowed, i.e.,
                    556:                                         # internal.selfenroll_types internal.selfenroll_registered
                    557:                                         # internal.selfenroll_section internal.selfenroll_start_access 
                    558:                                         # internal.selfenroll_end_access internal.selfenroll_limit
                    559:                                         # internal.selfenroll_cap internal.selfenroll_approval
                    560:                                         # internal.selfenroll_notifylist
1.45      raeburn   561:     } elsif ($action eq 'queued') {
1.46      raeburn   562:         $outgoing->{'queuedmsg'} = [{
                    563:                                      mt   => '',
1.45      raeburn   564:                                      args => [],
                    565:                                     }];
                    566:         $outgoing->{'queuedweb'} = '';
                    567:     }
                    568:     return 'ok'
                    569: }
                    570: 
1.38      raeburn   571: =pod
                    572: 
1.55      raeburn   573: =item export_grades()
                    574:  
                    575: This routine can be customized to push grade information to some other gradebook,
                    576: LCMS, or administrative system external to LON-CAPA.
                    577: 
                    578: export_grades() takes five arguments -
                    579: (a) the LON-CAPA course ID
                    580: (b) the LON-CAPA course domain
                    581: (c) a hash reference containing the following: 
                    582:     scope    => scope of the grades (e.g., course, map or resource).
                    583:     instcode => institutional course code (if an official course)
                    584:     crstype  => course type -- Course, Community or Placement
                    585:     context  => calling context, e.g., "completion" when a student completes a placement test.
                    586: (d) a perl data structure (hash of a hash) containing the grade data.
                    587:     in the outer hash, the keys are student's username:domain
                    588:     in the inner hash, keys are:  
                    589:     id        => student/employee ID
                    590:     lastname  => student's last name
                    591:     firstname => student's first name
                    592:     email     => student's "permannent" e-mail address
                    593:     section   => student's LON-CAPA course section
                    594:     total     => total points earned
                    595:     bytitle   => reference to a hash (keys are question titles, values are points
                    596:     bysymb    => reference to a hash (keys are symbs, i.e., unique resource identifiers).
                    597: (e) reference to a hash which will contain information to return.
                    598:     keys will be the student's username:domain. Value of 1 to show grades pushed 
                    599:     successfully. 
                    600: 
                    601: =cut
                    602: 
1.56      raeburn   603: sub export_grades {
1.55      raeburn   604:     my ($cnum,$cdom,$hashref,$dataref,$outgoing) = @_;
                    605:     my %info;
                    606:     if (ref($hashref) eq 'HASH') {
                    607:         %info = %{$hashref};
                    608:     }
                    609:     if ((ref($dataref) eq 'HASH') && (ref($outgoing) eq 'HASH')) {
                    610:         foreach my $key (keys(%{$dataref})) {
                    611:             $outgoing->{$key} = 1;
                    612:         }
                    613:         return 'ok';
                    614:     } else {
                    615:         return 'error';
                    616:     }
                    617: }
                    618: 
                    619: =pod
                    620: 
1.58      raeburn   621: =item check_instclasses()
                    622: 
                    623:  This is used to supply information about which instituional course sections
                    624:  and cross-listings are available to supply enrollment data, given the current
                    625:  list of owner and co-owners. The data are used to populate the column titled:
                    626:  "Auto-enrollment of registered students" when showing full detailed for a course
                    627:  in the course catalog.
                    628: 
                    629:  This subroutine takes four arguments -
                    630: 
                    631:  (a) $owners - comma-separated list of username:domain for course owner 
                    632:      and co-owners.
                    633:  (b) $dom - domain of course.
                    634:  (c) $classes - reference to hash of institutional course sections and
                    635:      crosslistings for which access to enrollment data is being checked.
                    636:  (d) $validated - reference to hash which will be populated with all
                    637:      keys from incoming $classes hashref, for which one or more of the
                    638:      owner/co-owners has rights to access enrollment data. For each
                    639:      key included in $validated hashref, corresponding value will be set to 1.
                    640:   
                    641:  The subroutine returns 'ok' if there is no processing error.
                    642: 
                    643: =cut
                    644: 
                    645: 
                    646: sub check_instclasses {
                    647:     my ($owners,$dom,$classes,$validated) = @_;
                    648:     if ((ref($classes) eq 'HASH') && (ref($validated) eq 'HASH')) {
                    649:         foreach my $class (keys(%{$classes})){
1.59      raeburn   650:             if (&check_section($class,$owners,$dom) eq 'ok') {
1.58      raeburn   651:                 $validated->{$class} = 1;
                    652:             }
                    653:         }
                    654:     }
                    655:     return 'ok';
                    656: }
                    657: 
1.61      raeburn   658: =pod
                    659: 
                    660: =item instsec_reformat()
                    661: 
                    662:  Inputs: $dom, $action, $instsecref
                    663: 
                    664:  $dom is the course's domain
                    665:  $action is either: clutter or declutter
                    666:  $instsecref is a reference to a hash, in which each key is
                    667:  course num:course code, and each value is either an array of 
                    668:  institutional sections, or (in the case of crosslisted courses)
                    669:  an array of institutional course sections.
                    670: 
                    671:  Returns: ok
                    672: 
                    673:  Side effects: will modify the items in the array as determined by
                    674:  code implemented for the domain.  Modification will differ depending
                    675:  on whether the action is clutter or declutter.
                    676: 
                    677:  The idea is that "clutter" will modify the name of the section such
                    678:  that a concatenation of institutional code then (modified) section
                    679:  will result in a string that other customized routines in localenroll.pm
                    680:  can separate without ambiguity into instituional code then (real)
                    681:  institutional section using a regular expression.
                    682: 
                    683:  Conversely, "declutter" will modify the name of an already modified
                    684:  item such that display of the concatenated string (e.g., for a 
                    685:  crosslisting in the course catalog) does not include the "added"
                    686:  characters used to eliminate ambiguity. 
                    687: 
                    688:  Examples (MSU):
                    689: 
                    690:  Starting in Fall 2021 at MSU, institution section numbers are no
                    691:  longer guaranteed to be three digit numbers (including leading zeroes).
                    692: 
                    693:  So, for example the course code: fs21phy183b might have sections:
                    694:  001, 002, LEC1, LEC2, and be crosslisted with fs21phy233b (with 
                    695:  sections: 730, LEC3, LEC4).
                    696: 
                    697:  The sections: LEC1, and LEC2 should be changed to _LEC1, and _LEC2
                    698:  before creating the inner keys in the %affiliates hash of a hash,
                    699:  passed to fetch_enrollment() in Enrollment.pm.  They will however
                    700:  be stored in the course's environment as LEC1 and LEC2.
                    701: 
                    702:  For the crosslistings, LEC3 and LEC4 should be changed to 
                    703:  _LEC3 and _LEC4 before storing in the course's environment.db file.
                    704: 
                    705:  In both cases when it comes time to extract the various components
                    706:  of an institutional section code (i.e., the concatenated string) in
                    707:  fetch_enrollment(), for example, the regexp used at MSU would be:
                    708:  
                    709:  if ($class =~ m/^([suf]s)(\d{2})(\w{2,4})(\d{3,4}[A-Za-z]?)(\d{3}|_[A-Za-z0-9]{1,5})$/) {
                    710:      my ($sem,$yr,$subj,$crse,$sec) = ($1,$2,$3,$4,$5);
                    711: 
                    712:  The three digit sections would match the \d{3} and the other sections
                    713:  (LEC1, LEC2 etc.) would match the _[A-Za-z0-9]{1,5}.
                    714: 
                    715:  The customization in &instsec_reformat() would be:
                    716: 
                    717:      if ($action eq 'clutter') {
                    718:          unless ($item =~ /^\d{3}$/) {
                    719:              $item = '_'.$item;
                    720:          }
                    721:      } elsif ($action eq 'declutter') {
                    722:          if ($item =~ /^([suf]s\d{2}\w{2,4}\d{3,4}[A-Za-z]?)(\d{3}|_[A-Za-z0-9]{1,5})$/) {
                    723:              my ($instcode,$instsec) = ($1,$2);
                    724:              $instsec =~ s/^_//;
                    725:              $item = $instcode.$instsec;
                    726:          } elsif ($item =~ /^_[A-Za-z0-9]{1,5}$/) {
                    727:              $item =~ s/^_//;
                    728:          }
                    729:      }
                    730: 
                    731: =cut
                    732: 
                    733: sub instsec_reformat {
1.62      raeburn   734:     my ($dom,$action,$instsecref) = @_;
1.61      raeburn   735:     if ((ref($instsecref) eq 'HASH') &&
                    736:         (($action eq 'clutter') || ($action eq 'declutter'))) {
                    737:         foreach my $key (keys(%{$instsecref})) {
                    738:             if (ref($instsecref->{$key}) eq 'ARRAY') {
                    739:                 foreach my $sec (@{$instsecref->{$key}}) {
                    740:                     if ($action eq 'clutter') {
                    741:                         # modify the section, as needed.
                    742:                         next;
                    743:                     } elsif ($action eq 'declutter') {
                    744:                         # modify the section, as needed.
                    745:                         next;
                    746:                     }
                    747:                 }
                    748:             }
                    749:         }
                    750:     }
                    751:     return 'ok';
                    752: }
1.58      raeburn   753: 
                    754: =pod
                    755: 
1.32      jms       756: =item create_password()
                    757: 
                    758:  This is called when the authentication method set for the automated 
                    759:  enrollment process when enrolling new users in the domain is "localauth".
                    760:  This could be signalled for the specific user by the value of localauth
                    761:  for the <authtype> tag from the classlist.xml files, or if this is blank,
                    762:  the default authtype, set by the domain coordinator when creating the course
                    763:  with loncreatecourse.pm.
                    764:   
                    765:  create_password takes three arguments -
                    766:  (a) $authparam - the value of <autharg> from the classlist.xml files,
                    767:  or if this blank, the default autharg, set by the domain coordinator when 
                    768:  creating the course with loncreatecourse.pm
                    769:  (b) $dom - the domain of the new user.
                    770:  (c) $username - the username of the new user (currently not actually used)
                    771: 
                    772:  Four values are returned:
                    773:  (a) the value of $authparam - which might have been changed
                    774:  (b) a flag to indicate whether a password had been created
                    775:  0 means no password created
                    776:  1 means password created.  In this case the calling module - Enrollment.pm
                    777:  will send the LON-CAPA username and password to the new user's e-mail
                    778:  (if one was provided), or to the course owner (if one was not provided and
                    779:  the new user was created by the automated process), or to the active
                    780:  course coordinator (if the new user was created using the 'update roster
                    781:  now' interface included in the Automated Enrollment Manager).  
                    782:  (c) a flag to indicate that the authentication method is correct - 'ok'.
                    783:  If $authchk is not set to 'ok' then account creation and enrollment of the 
                    784:  new user will not occur.
                    785:  (d) if a password was created it can be sent along.  This is the password 
                    786:  which will be included in the e-mail sent to the new user, or made available    
                    787:  to the course owner/course coordinator if no e-mail address is provided. If
                    788:  you do not wish to send a password, but want to give instructions on obtaining
                    789:  one, you could set $newpasswd as those instructions. (e.g.,
                    790:  $newpasswd = '(Please visit room 212, ACNS Bldg. to obtain your password)';
                    791:  The value of $newpasswd is NOT written in the user's LON-CAPA passwd file in
                    792:  /home/httpd/lonUsers/$dom/a/b/c/abcuser/passwd, which in the case of a user
                    793:  employing localauth will contain 'localauth:$authparam'.  If you need to include
                    794:  a parameter in the user's passwd file, you should return it as $authparam,
                    795:  i.e., the first of the variables returned by create_password().             
                    796: 
                    797: 
                    798: =cut 
1.4       raeburn   799: 
                    800: sub create_password {
1.13      albertel  801:     my ($authparam,$dom,$username) = @_;
1.4       raeburn   802:     my $authchk = 'ok';
1.11      raeburn   803:     my $newpasswd = '';
1.4       raeburn   804:     my $create_passwd = 0;
1.11      raeburn   805:     return ($authparam,$create_passwd,$authchk,$newpasswd);
1.1       raeburn   806: }
                    807: 
1.32      jms       808: =pod
                    809: 
                    810: =item instcode_format()
                    811: 
                    812:  Split coursecodes into constituent parts.   
                    813:  e.g., INSTITUTIONALCODE = fs03nop590, LON-CAPA COURSEID: 43551dedcd43febmsul1
                    814:  (MSU's course naming scheme - fs03 = Fall semester 2003, nop =
                    815:  department name, 590 = course number)
                    816: 
                    817:  Incoming data:
                    818:  $dom (domain)
                    819:  $$instcodes{'43551dedcd43febmsul1'} = 'fs03nop590' (hash of courseIDs)
                    820:  
                    821:  fs03nop590 would be split as follows
                    822:  @{$codetitles} = ("year","semester","department","number")
1.33      bisitz    823:  $$codes{'year'} = '2003'
1.32      jms       824:  $$codes{'semester'} = 'Fall'
                    825:  $$codes{'department'} = 'nop'
                    826:  $$codes{'number'} = '590'
                    827: 
                    828:  requires six arguments:
                    829:  domain ($dom)
                    830:  reference to hash of institutional course IDs ($instcodes)  
                    831:  reference to hash of codes ($codes)
                    832:  reference to array of titles ($codetitles)
                    833:  reference to hash of abbreviations used in categories
                    834:  reference to hash of arrays specifying sort order used in category titles   
                    835: 
                    836:  e.g.,     %{$$cat_titles{'Semester'}} = (
                    837:                    fs => 'Fall',
                    838:                    ss => 'Spring',
                    839:                    us => 'Summer');
                    840: 
                    841:  e.g., @{$$cat_order{'Semester'}} = ('ss','us','fs'); 
                    842:  returns 1 parameter: 'ok' if no processing errors. 
1.33      bisitz    843: 
                    844:  Detailed help:
                    845:  http://yourloncapaserver/adm/help/Institutional_Integration_Course_Codes.hlp
                    846: 
1.32      jms       847: =cut
                    848: 
1.10      raeburn   849: 
                    850: sub instcode_format () {
                    851:     my ($dom,$instcodes,$codes,$codetitles,$cat_titles,$cat_order) = @_;
                    852:     my $outcome = 'ok';
                    853:     return $outcome;
                    854: }
                    855: 
1.35      raeburn   856: =pod
                    857: 
                    858: =item possible_instcodes()
                    859: 
                    860: Gather acceptable values for institutional categories to use in course creation request form for official courses.
                    861: 
1.40      raeburn   862:  requires five arguments:
                    863: 
1.35      raeburn   864:  domain ($dom)
                    865:  reference to array of titles ($codetitles)
                    866:  reference to hash of abbreviations used in categories ($cat_titles).
1.40      raeburn   867:  reference to hash of arrays specifying sort order used in 
                    868:            category titles ($cat_order).
                    869:  reference to array which will contain order of component parts used 
                    870:            in institutional code ($code_order).
1.35      raeburn   871: 
                    872:  e.g., 
1.40      raeburn   873:  @{$codetitles} = ('Year','Semester',"Department','Number');
1.35      raeburn   874: 
                    875:  %{$$cat_titles{'Semester'}} = (
                    876:                    fs => 'Fall',
                    877:                    ss => 'Spring',
                    878:                    us => 'Summer');
                    879: 
                    880:  @{$$cat_order{'Semester'}} = ('ss','us','fs');
1.40      raeburn   881:  @{$code_order} = ('Semester','Year','Department','Number');
1.35      raeburn   882: 
                    883:  returns 1 parameter: 'ok' if no processing errors.
                    884: 
                    885: =cut
                    886: 
                    887: sub possible_instcodes {
1.40      raeburn   888:     my ($dom,$codetitles,$cat_titles,$cat_order,$code_order) = @_;
1.35      raeburn   889:     @{$codetitles} = ();
                    890:     %{$$cat_titles{'Semester'}} = ();
                    891:     @{$$cat_order{'Semester'}} = ('ss','us','fs');
1.40      raeburn   892:     @{$code_order} = ();
1.35      raeburn   893:     return 'ok';
                    894: }
                    895: 
                    896: 
1.32      jms       897: =pod
                    898: 
                    899: =item institutional_photos()
                    900: 
                    901:  Called when automated enrollment manager is used to update student photos.
                    902: 
                    903:  Incoming data: six arguments
                    904:  (a) $dom (domain)
                    905:  (b) $crs (LONCAPA course number)
                    906:  (c) $affiliates: a reference to a hash with the keys set to the 
                    907:  institutional course IDs for the course.
                    908:  (d) $result: a reference to a hash which will return usernames  
                    909:      of students (& separated) in following categories (the keys):
                    910:      new, update, missing, same, deleted, noid, nouser. The list 
                    911:      includes those students for whom the result of the modification 
                    912:      process was either addition of a new photo. update of an
                    913:      existing photo, photo was found to be missing from institution's
                    914:      data store, photo used is same as before, or photo was 
                    915:      deleted from storage on LON-CAPA server housing student's
1.34      weissno   916:      information, no student/employee ID was available. 
1.12      raeburn   917:                
1.32      jms       918:  (e) $action: the type of action needed. (e.g., update, delete);
                    919:  (f) $students: a reference to a hash with the keys set to student 
                    920:  usernames and domains in the form username:domain, and values set
                    921:  to the studentID, if action is required for specific students.  
                    922: 
                    923:  returns 1 parameter: 'ok' if no processing errors.
                    924:  other course or student specific values can be stored as values
                    925:  in the appropriate referenced hashes. 
                    926: 
                    927: =cut
1.12      raeburn   928: 
                    929: sub institutional_photos {
                    930:     my ($dom,$crs,$affiliates,$result,$action,$students) = @_;
                    931:     my $outcome = 'ok';
                    932:     return $outcome;
                    933: }
                    934: 
1.32      jms       935: =pod
                    936: 
                    937: =item photo_permission()
                    938: 
                    939:  Incoming data: three arguments
                    940:  (a) $dom (domain)
                    941:  (b) $perm_reqd: a reference to a a scalar that is either 'yes'
                    942:  if a course owner must indicate acceptance of conditions of use,
                    943:  'no' otherwise.
                    944:  (c) $conditions: the text of the conditions of use.
                    945:     
                    946:  returns 1 parameter: 'ok' if no processing errors.
                    947:  $$perm_reqd is set to 'yes' or 'no'
                    948:  $$agreement is set to conditions of use - plain text string
                    949:              which will be displayed in a textarea in a web form.
                    950: 
                    951: 
                    952: =cut
                    953: 
1.12      raeburn   954: sub photo_permission {
                    955:    my ($dom,$perm_reqd,$conditions) = @_;
                    956:    $$perm_reqd = 'no';
                    957:    $$conditions = '';
                    958:    my $outcome = 'ok';
                    959:    return $outcome;
                    960: }
                    961: 
1.32      jms       962: =pod
                    963: 
                    964: =item manager_photo_update()
                    965: 
                    966:  Incoming data: one argument
                    967:  (a) $dom (domain)
                    968: 
                    969:  returns 2 parameters: update (0 or 1), and comment.
                    970:  Called by automated enrollment manager, to determine 
                    971:  whether "Update Student photos" button will be available,
                    972:  and if so, the message (plain text string) that will be displayed
                    973:  with the button. 
1.12      raeburn   974: 
1.32      jms       975: 
                    976: =cut
1.12      raeburn   977:                                                                                         
                    978: sub manager_photo_update {
                    979:     my ($dom) = @_;
                    980:     my $update = 0;
                    981:     my $comment = '';
                    982:     return ($update,$comment);
                    983: }
                    984: 
1.32      jms       985: =pod
                    986: 
                    987: 
                    988: =item check_section()
                    989: 
                    990:  Incoming data: three arguments (+ fourth optional argument)
                    991:  (a) $class - institutional class id (coursecode concatanated with section) 
                    992:  (b) $owner - course owner (2.2 and later username:domain; pre-2.2 username;
                    993:                             2.6 and later - comma-separated list of 
                    994:                             username:domain for course owner and co-owners.)
                    995:  (c) $dom - domain of course
                    996:  (d) $dbh - optional database handle
                    997: 
                    998:  returns 1 parameter - $sectioncheck ('ok' or other value). 
                    999:  Verifies that at least one of the course owner (or co-owners) have access 
                   1000:  to classlist for specific class according to institution's SIS
                   1001:  'ok' if access available  
                   1002: 
                   1003: 
                   1004: =cut
1.16      raeburn  1005: 
                   1006: sub check_section {
                   1007:     my ($class,$owner,$dom,$dbh) = @_;
                   1008:     my $sectioncheck = 'ok';
                   1009:     return $sectioncheck;
                   1010: }
                   1011: 
1.32      jms      1012: =pod
                   1013: 
                   1014: =item instcode_defaults()
                   1015: 
                   1016:  Incoming data: three arguments
                   1017:  (a) $dom - domain
                   1018:  (b) $defaults - reference to hash which will contain default regular
                   1019:                  expression matches for different components of an 
                   1020:                  institutional course code 
                   1021:  (c) $code_order - reference to array which will contain order of 
                   1022:                    component parts used in institutional code.  
                   1023: 
                   1024:  returns 1 parameter - ('ok' or other value).
                   1025:  Used to construct a regular expression to be used when searching for
                   1026:  courses based on fragments of an institutional code.
                   1027:  $defaults contains defaults to use for each component, and code_order
                   1028:  contains keys of hash in order in which they are to be concatenated.
                   1029: 
                   1030:  e.g., INSTITUTIONALCODE = fs03nop590
                   1031:  (MSU's course naming scheme - fs  = semester, 03 = year, nop =
                   1032:  department name, 590 = course number)
                   1033: 
                   1034:      %{$defaults} = (
                   1035:         'Year' => '\d{2}',
                   1036:         'Semester' => '^[sfu]s', 
                   1037:         'Department' => '\w{2,3}',
                   1038:         'Number' => '\d{3,4}\w?',
                   1039:      );
                   1040: 
                   1041:      @{$code_order} = ('Semester','Year','Department','Number');
                   1042: 
1.33      bisitz   1043:  Detailed help:
                   1044:  http://yourloncapaserver/adm/help/Institutional_Integration_Course_Codes.hlp
                   1045: 
1.32      jms      1046: =cut
1.17      raeburn  1047: 
                   1048: sub instcode_defaults {
                   1049:     my ($dom,$defaults,$code_order) = @_;
                   1050:     return 'ok';
                   1051: }
                   1052: 
1.32      jms      1053: 
                   1054: =pod
                   1055: 
                   1056: =item allusers_info()
                   1057: 
                   1058:  Incoming data: three arguments
                   1059:  (a) $dom - domain
                   1060:  (b) $instusers - reference to hash which will contain hashes, 
                   1061:                  where keys will be usernames and value will be a 
                   1062:                  hash of user information. Keys in the inner hash 
                   1063:                  will be some or all of: lastname,firstname,
                   1064:                  middlename, generation, id, inststatus - 
                   1065:                  institutional status (e.g., faculty,staff,student)
                   1066:                  Values are all scalars except inststatus,
                   1067:                  which is an array.
                   1068:  (c) $instids - reference to hash which will contain ID numbers. 
                   1069:                 keys will be unique IDs (student or faculty/staff ID)
                   1070:                 values will be either: scalar (username) or an array 
                   1071:                 if a single ID matches multiple usernames.
1.43      raeburn  1072:  (d) $lc_users - reference to hash containing LON-CAPA usernames in 
                   1073:                  in domain $dom, as keys. Needed if institutional
                   1074:                  data source only allows query by username.
1.63      raeburn  1075:  (e) $counts - reference to hash (optional), for use when called 
                   1076:                from Autoupdate.pl which can contain counts for
                   1077:                user-specified items retrieved in allusers_info()
                   1078:                or in custom subroutines which it calls. Key in
                   1079:                hashref, and count value will be printed to 
                   1080:                autoupdate.log by Autoupdate.pl.  
                   1081:                  
1.32      jms      1082:  returns 1 parameter - 'ok' if no processing error, or other value 
                   1083:                        if an error occurred.
                   1084:  side effects - populates the $instusers and $instids refs to hashes.
                   1085:                 with information for all users from all available 
                   1086:                 institutional datafeeds.
                   1087: 
                   1088: 
                   1089: =cut
1.18      raeburn  1090: 
                   1091: sub allusers_info {
1.63      raeburn  1092:     my ($dom,$instusers,$instids,$lc_users,$counts) = @_;
1.18      raeburn  1093:     my $outcome = 'ok';
                   1094:     return $outcome; 
                   1095: }
                   1096: 
1.32      jms      1097: =pod
                   1098: 
                   1099: =item get_userinfo()
                   1100: 
                   1101:  Incoming data: four required arguments and additional optional arguments
                   1102:  Two modes of operation:
                   1103:  (1) Retrieves institutional data for a single user either by username
                   1104:      if $uname is included as second argument, or by ID if $id is 
                   1105:      included as a third argument.  Either (b) or (c) must be provided.
                   1106:      (g), (h) and (i) will be undefined.
                   1107:  (2) Retrieves institutional user data from search of an institutional
                   1108:      directory based on a search. (g) and (h) are required.
                   1109:      (i) is optional. (b) and (c) will be undefined. 
                   1110: 
                   1111:  (a) $dom - domain
                   1112:  (b) $uname - username of user
                   1113:  (c) $id - student/faculty ID of user
                   1114:  (d) $instusers - reference to hash which will contain info for user
                   1115:                  as key = value; keys will be one or all of:
                   1116:                  lastname,firstname,middlename,generation,id,inststatus -
                   1117:                  institutional status (e.g., faculty,staff,student)
                   1118:                  Values are all scalars except inststatus,
                   1119:                  which is an array.
                   1120:  (e) $instids - reference to hash which will contain ID numbers - 
                   1121:                  keys will be unique IDs (student or faculty/staff ID)  
                   1122:                  values will be either: scalar (username) or an array
                   1123:                  if a single ID matches multiple usernames.
                   1124:  (f) $types - optional reference to array which contains 
                   1125:               institutional types to check.
                   1126:  (g) $srchby - optional if $uname or $id defined, otherwise required.
                   1127:                Allowed values include: 1. lastfirst, 2. last, 3. uname
1.57      raeburn  1128:                4. email, corresponding to searches by 1. lastname,firstname;
                   1129:                2. lastname; 3. username; 4. e-mail address
1.32      jms      1130:  (h) $srchterm - optional if $uname or $id defined, otherwise required
                   1131:                 String to search for.
                   1132:  (i) $srchtype - optional. Allowed values: contains, begins (defaults
                   1133:                 to exact match otherwise).
                   1134: 
                   1135:  returns 1 parameter - 'ok' if no processing error, or other value 
                   1136:                        if an error occurred.
                   1137:  side effects - populates the $instusers and $instids refs to hashes.
                   1138:                 with information for specified username, or specified
                   1139:                 id, if fifth argument provided, from all available, or 
                   1140:                 specified (e.g., faculty only) institutional datafeeds,
                   1141:                 if sixth argument provided.
                   1142: 
                   1143:  WARNING: You need to set $outcome to 'ok' once you have customized
                   1144:           this routine to communicate with an instititional 
                   1145:           directory data source, otherwise institutional directory 
                   1146:           searches will always be reported as being unavailable
                   1147:           in domain $dom.
                   1148: 
                   1149: =cut
1.18      raeburn  1150: 
                   1151: sub get_userinfo {
1.21      raeburn  1152:     my ($dom,$uname,$id,$instusers,$instids,$types,
                   1153:         $srchby,$srchterm,$srchtype) = @_;
1.24      raeburn  1154:     my $outcome = 'unavailable';
1.18      raeburn  1155:     return $outcome;
                   1156: }
                   1157: 
1.32      jms      1158: =pod
                   1159: 
1.64    ! raeburn  1160: =item get_multusersinfo()
1.53      raeburn  1161: 
                   1162:  (a) $dom - domain
                   1163:  (b) $type - username or id
                   1164:  (c) $unamenames - reference to hash containing usernames of users
                   1165:  (d) $instusers - reference to hash which will contain info for user
                   1166:                  as key = value; keys will be one or all of:
                   1167:                  lastname,firstname,middlename,generation,id,inststatus -
                   1168:                  institutional status (e.g., faculty,staff,student)
                   1169:                  Values are all scalars except inststatus,
                   1170:                  which is an array.
                   1171:  (e) $instids - reference to hash which will contain ID numbers -
                   1172:                  keys will be unique IDs (student or faculty/staff ID)
                   1173:                  values will be either: scalar (username) or an array
                   1174:                  if a single ID matches multiple usernames.
                   1175: 
                   1176:  returns 1 parameter - 'ok' if no processing error, or other value
                   1177:                        if an error occurred.
                   1178: 
                   1179:  side effects - populates the $instusers and $instids refs to hashes.
                   1180:                 with information for specified username, or specified
                   1181:                 id, if fifth argument provided, from all available, or
                   1182:                 specified (e.g., faculty only) institutional datafeeds,
                   1183:                 if sixth argument provided.
                   1184: 
                   1185:  WARNING: You need to set $outcome to 'ok' once you have customized
                   1186:           this routine to communicate with an instititional
                   1187:           directory data source, otherwise retrieval of institutional
                   1188:           user information will always be reported as being unavailable
                   1189:           in domain $dom.
                   1190: 
                   1191: =cut
                   1192: 
                   1193: sub get_multusersinfo {
                   1194:     my ($dom,$type,$usernames,$instusers,$instids) = @_;
                   1195:     my $outcome = 'unavailable'; 
                   1196:     return $outcome;
                   1197: }
                   1198: 
                   1199: =pod
                   1200: 
1.32      jms      1201: =item inst_usertypes() 
                   1202: 
1.49      raeburn  1203:  Starting with LON-CAPA 2.11.0 use of this subroutine
                   1204:  is deprecated. The domain configuration web GUI
                   1205:  accessible to Domain Coordinators will be used to
                   1206:  manage institutional types.  If you have previously
                   1207:  customized this routine, then values set there will
                   1208:  be used when displaying the "Institutional user types"
                   1209:  section in the domain config screen for:
                   1210:  "Default authentication/language/timezone/portal/types".
                   1211: 
                   1212:  Once you have visited that screen and saved the settings,
                   1213:  configuration thereafter will be via the web GUI of
                   1214:  values stored in the domain's configuration.db file on
                   1215:  the primary library server in the domain, and values in
                   1216:  inst_usertypes() will no longer be consulted.
                   1217:  
1.32      jms      1218:  Incoming data: three arguments
                   1219:  (a) $dom - domain
                   1220:  (b) $usertypes - reference to hash which will contain 
                   1221:                  key = value, where keys are institution 
                   1222:                  affiliation types (e.g., Faculty, Student etc.)
                   1223:                  and values are titles (e.g., Faculty/Academic Staff)
                   1224:  (c) $order - reference to array which will contain the order in
                   1225:               which institutional types should be shown
                   1226:               when displaying data tables (e.g., default quotas    
                   1227:               or updateable user fields (see domainprefs.pm) 
                   1228:  returns 1 parameter - 'ok' if no processing error, or other value 
                   1229:                         if an error occurred.
                   1230: 
                   1231: 
                   1232: =cut
1.18      raeburn  1233: 
                   1234: sub inst_usertypes {
                   1235:     my ($dom,$usertypes,$order) = @_;
1.20      raeburn  1236:     @{$order} = ();
                   1237:     %{$usertypes} = ();
1.18      raeburn  1238:     my $outcome = 'ok';
                   1239:     return $outcome;
                   1240: }
1.17      raeburn  1241: 
1.32      jms      1242: =pod
                   1243: 
                   1244: =item username_rules()
                   1245: 
                   1246:  Incoming data: three arguments 
                   1247:  (a) $dom - domain
                   1248:  (b) $ruleshash - reference to hash containing rules
                   1249:                   (a hash of a hash)
                   1250:                   keys of top level hash are short names  
                   1251:                    (e.g., netid, noncredit) 
                   1252:                   for each key, value is a hash
1.64    ! raeburn  1253:                       name => long name for rule  
        !          1254:                       desc => description of rule
1.32      jms      1255:                       authtype => (krb5,krb4,int, or loc)
                   1256:                                  authentication type for rule 
                   1257:                       authparm => authentication parameter for rule
                   1258:                       authparmfixed => 1 if authparm used when
                   1259:                           creating user for rule must be authparm  
                   1260:                       authmsg => Message to display describing 
                   1261:                                  authentication to use for this rule
                   1262: 
                   1263:  (c) $rulesorder - reference to array containing rule names 
                   1264:                    in order to be displayed
                   1265: 
                   1266: 
                   1267:   returns 'ok' if no processing error.
1.25      raeburn  1268: 
1.32      jms      1269: =cut
1.25      raeburn  1270: 
                   1271: sub username_rules {
                   1272:     my ($dom,$ruleshash,$rulesorder) = @_;
                   1273:     my $outcome;
                   1274:     return $outcome;
                   1275: }
                   1276: 
1.32      jms      1277: =pod
                   1278: 
                   1279: =item id_rules()
                   1280: 
                   1281:  Incoming data: three arguments
                   1282:  (a) $dom - domain
                   1283:  (b) $ruleshash - reference to hash containing rules
                   1284:                   (a hash of a hash)
                   1285:                   keys of top level hash are short names
                   1286:                    (e.g., netid, noncredit)
                   1287:                   for each key, value is a hash
1.64    ! raeburn  1288:                       name => long name for rule
        !          1289:                       desc => description of rule
1.32      jms      1290: 
                   1291:  (c) $rulesorder - reference to array containing rule names
                   1292:                    in order to be displayed
                   1293: 
                   1294:   returns 'ok' if no processing error.
                   1295: 
                   1296: =cut
1.27      raeburn  1297: 
1.30      raeburn  1298: sub id_rules {
                   1299:     my ($dom,$ruleshash,$rulesorder) = @_;
                   1300:     my $outcome;
                   1301:     return $outcome;
                   1302: }
                   1303: 
1.32      jms      1304: =pod
                   1305: 
                   1306: =item selfcreate_rules()
                   1307: 
                   1308:  Incoming data: three arguments
                   1309:  (a) $dom - domain
                   1310:  (b) $ruleshash - reference to hash containing rules
                   1311:                   (a hash of a hash)
                   1312:                   keys of top level hash are short names
                   1313:                    (e.g., netid)
                   1314:                   for each key, value is a hash
1.64    ! raeburn  1315:                       name => long name for rule
        !          1316:                       desc => description of rule
1.32      jms      1317: 
                   1318:  (c) $rulesorder - reference to array containing rule names
                   1319:                    in order to be displayed
                   1320: 
                   1321:   returns 'ok' if no processing error.
                   1322: 
1.27      raeburn  1323: 
1.32      jms      1324: =cut
1.30      raeburn  1325: 
1.31      raeburn  1326: sub selfcreate_rules {
1.27      raeburn  1327:     my ($dom,$ruleshash,$rulesorder) = @_;
                   1328:     my $outcome;
                   1329:     return $outcome;
                   1330: }
                   1331: 
1.32      jms      1332: =pod
                   1333: 
1.64    ! raeburn  1334: =item unamemap_rules()
        !          1335: 
        !          1336:  Incoming data: three arguments
        !          1337:  (a) $dom - domain
        !          1338:  (b) $ruleshash - reference to hash containing rules
        !          1339:                   (a hash of a hash)
        !          1340:                   keys of top level hash are short names
        !          1341:                    (e.g., netid)
        !          1342:                   for each key, value is a hash
        !          1343:                       name => long name for rule
        !          1344:                       desc => description of rule
        !          1345: 
        !          1346:  For example: 
        !          1347: 
        !          1348:         %{$ruleshash} = (
        !          1349:             emailaddress  => {
        !          1350:                                name     => 'Email address to UserID',
        !          1351:                                desc     => 'Extract userID from userID@example.tld',
        !          1352:                              },
        !          1353:                         );
        !          1354:   would enable display of a checkbox for: 'Email address to UserID' in the
        !          1355:   "Available conversions" item in the "Mapping for missing usernames via standard log-in"
        !          1356:   panel available to a Domain Coordinator via:
        !          1357:   Main Menu > Set domain configuration > Display ("Default authentication/language/timezone/portal/types" checked)
        !          1358: 
        !          1359:  (c) $rulesorder - reference to array containing rule names
        !          1360:                    in order to be displayed
        !          1361: 
        !          1362:   returns 'ok' if no processing error.
        !          1363: 
        !          1364: =cut
        !          1365: 
        !          1366: sub unamemap_rules {
        !          1367:     my ($dom,$ruleshash,$rulesorder) = @_;
        !          1368:     my $outcome;
        !          1369:     return $outcome;
        !          1370: }
        !          1371: 
        !          1372: =pod
        !          1373: 
1.32      jms      1374: =item username_check() 
                   1375: 
                   1376:  Incoming data: four arguments
                   1377:  (a) $dom - domain (scalar) 
                   1378:  (b) $uname - username to compare against rules (scalar)
                   1379:  (c) $to_check (reference to array of rule names to check)
                   1380:  (d) $resultshash (reference to hash of results)
1.64    ! raeburn  1381:                     hash of results for rules checked
1.32      jms      1382:                    - keys are rule names
                   1383:                    - values are: 1 or 0 (for matched or unmatched) 
                   1384: 
                   1385:  returns 'ok' if no processing error.
                   1386: 
                   1387: 
                   1388: =cut
1.25      raeburn  1389: 
                   1390: sub username_check {
                   1391:     my ($dom,$uname,$to_check,$resultshash) = @_;
                   1392:     my $outcome;
                   1393:     return $outcome; 
                   1394: }
                   1395: 
1.32      jms      1396: =pod
                   1397: 
                   1398: =item id_check()
                   1399: 
                   1400:  Incoming data: four arguments
                   1401:  (a) $dom - domain (scalar)
                   1402:  (b) $id - ID to compare against rules (scalar)
                   1403:  (c) $to_check (reference to array of rule names to check)
                   1404:  (d) $resultshash (reference to hash of results)
1.64    ! raeburn  1405:                     hash of results for rules checked
1.32      jms      1406:                    - keys are rule names
                   1407:                    - values are: 1 or 0 (for matched or unmatched)
                   1408: 
                   1409:  returns 'ok' if no processing error.
                   1410: 
                   1411: 
                   1412: =cut
1.27      raeburn  1413: 
                   1414: sub id_check {
                   1415:     my ($dom,$id,$to_check,$resultshash) = @_;
                   1416:     my $outcome;
                   1417:     return $outcome;
                   1418: }
                   1419: 
1.32      jms      1420: =pod
                   1421: 
                   1422: =item selfcreate_check()
                   1423: 
                   1424:  Incoming data: four arguments
                   1425:  (a) $dom - domain (scalar)
                   1426:  (b) $selfcreatename - e-mail proposed as username (compare against rules - scalar)
                   1427:  (c) $to_check (reference to array of rule names to check)
                   1428:  (d) $resultshash (reference to hash of results)
1.64    ! raeburn  1429:                    hash of results for rules checked
1.32      jms      1430:                    - keys are rule names
                   1431:                    - values are: 1 or 0 (for matched or unmatched)
                   1432: 
                   1433:  returns 'ok' if no processing error.
                   1434: 
                   1435: 
                   1436: =cut
1.30      raeburn  1437: 
1.31      raeburn  1438: sub selfcreate_check {
                   1439:     my ($dom,$selfcreatename,$to_check,$resultshash) = @_;
1.30      raeburn  1440:     my $outcome;
                   1441:     return $outcome;
                   1442: }
                   1443: 
1.32      jms      1444: =pod
                   1445: 
1.64    ! raeburn  1446: =item unamemap_check()
        !          1447: 
        !          1448:  Incoming data: four arguments
        !          1449:  (a) $dom - domain (scalar)
        !          1450:  (b) $uname - username entered on log-in page (compare against rules - scalar)
        !          1451:  (c) $to_check (reference to array of rule names to check)
        !          1452:  (d) $resultshash (reference to hash of results)
        !          1453:                    hash of results for rules checked
        !          1454:                    - keys are rule names
        !          1455:                    - values are derived username from substitution operation
        !          1456:                      applied to $uname.
        !          1457: 
        !          1458:   For example, in the msu domain the rule "msuemail" will replace an MSU
        !          1459:   email address submitted as a username, with the part before the @msu.edu,
        !          1460:   (known as the MSUNetID), which is what is used in LON-CAPA as a username.
        !          1461: 
        !          1462:   if ($dom eq 'msu') {
        !          1463:       foreach my $item (@{$to_check}) {
        !          1464:           if ($item eq 'msuemail') {
        !          1465:               if ($uname =~ /^(\w{2,8})\@msu\.edu$/) {
        !          1466:                   $resultshash->{$item} = $1;
        !          1467:               }
        !          1468:           }
        !          1469:       }
        !          1470:    }
        !          1471: 
        !          1472:  returns 'ok' if no processing error.
        !          1473: 
        !          1474: =cut
        !          1475: 
        !          1476: sub unamemap_check {
        !          1477:     my ($dom,$uname,$to_check,$resultshash) = @_;
        !          1478:     my $outcome;
        !          1479:     return $outcome;
        !          1480: }
        !          1481: 
        !          1482: =pod
        !          1483: 
1.32      jms      1484: =item AUTOLOAD()
                   1485: 
                   1486:  Incoming data: none
                   1487:  Returns ''
                   1488: 
                   1489:  Prevents errors when undefined subroutines are called in this package
                   1490:  Will allow new routines added in the future to be called from lond etc.
                   1491:  without the need for customized versions of local*.pm packages to be
                   1492:  modified to include the new subroutines immediately.
                   1493: 
                   1494:  See "Programming Perl" 3rd ed. pp 296-298.   
                   1495: 
                   1496: =back
                   1497: 
                   1498: =cut
1.14      raeburn  1499: 
                   1500: sub AUTOLOAD {
                   1501:     our $AUTOLOAD;
                   1502:     return '';
                   1503: }
                   1504: 
1.1       raeburn  1505: 1;

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