[LON-CAPA-cvs] cvs: modules /vcu localenroll.pm

raeburn lon-capa-cvs-allow@mail.lon-capa.org
Fri, 15 Feb 2008 01:24:07 -0000


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raeburn		Thu Feb 14 20:24:07 2008 EDT

  Added files:                 
    /modules/vcu	localenroll.pm 
  Log:
  fetch_enrollment(), instcode_format() and instcode_defaults() customized for VCU classlist data feed, and institutional codes.
  
  -coursecatalog page will include dropdown boxes for Year, Semester, Department and Coursenumber -- dynamically populated via javascript.
  
  - Format of VCU course codes similar to ACCT-202-2007Fall  
  
  
--raeburn1203038647
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Index: modules/vcu/localenroll.pm
+++ modules/vcu/localenroll.pm
# functions to glue school database system into Lon-CAPA for 
# automated enrollment
# $Id: localenroll.pm,v 1.1 2008/02/15 01:24:01 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
package localenroll;

use strict;

################################
# sub run
# set this to return 1 if you want the auto enrollment to run
#
# Beginning with LON-CAPA version 2.4, use of this routine is
# deprecated.  Whether or not Autoenroll.pl should run is set
# by the Domain Coordinator via "Set domain configuration",
# provided in the Domain Management section of the Main menu. 
################################

sub run() {
    my $dom = shift;
    return 0;
}

################################
# sub fetch_enrollment
#
# connects to the institutional classlist data source,
# reads classlist data and stores in an XML file
# in /home/httpd/perl/tmp/
#
# classlist files are named as follows:
#
# DOMAIN_COURSE_INSTITUTIONALCODE_classlist.xml
#
# e.g., msu_43551dedcd43febmsul1_fs03nop590001_classlist.xml
# where DOMAIN = msu  COURSE = 43551dedcd43febmsul1 
# INSTITUTIONALCODE = fs03nop590001 
# (MSU's course naming scheme - fs03 = Fall semester 2003, nop =
# department name, 590 = course number, 001 = section number.)
#
# fetch_enrollment requires three arguments -
# $dom - DOMAIN e.g., msu
# $affiliatesref - a reference to a hash of arrays that contains LON-CAPA 
# courses that are to be updated as keys, and institutional coursecodes 
# contributing enrollment to that LON-CAPA course as elements in each array.
# $replyref - a reference to a hash that contains LON-CAPA courses
# that are to be updated as keys, and the total enrollment count in all 
# affiliated sections, as determined from institutional data as hash elements. 
#
# As an example, if fetch_enrollment is called to retrieve institutional
# classlists for a single LON-CAPA course - 43551dedcd43febmsul1 which 
# corresponds to fs03nop590, sections 001, 601 and 602 , and the course
# also accommodates enrollment from a crosslisted course in the ost
# department - fs03ost580002:
#
# the affiliatesref would be a reference to %affiliates which would be:
#
# @{$affiliates{'43551dedcd43febmsul1'}} =
#   ("fs03nop590001","fs03nop590601","fs03nop590602","fs03ost580002");
#
# fetch_enrollment would create four files in /home/httpd/perl/tmp/.
# msu_43551dedcd43febmsul1_fs03nop590001_classlist.xml
# msu_43551dedcd43febmsul1_fs03nop590601_classlist.xml
# msu_43551dedcd43febmsul1_fs03nop590602_classlist.xml
# msu_43551dedcd43febmsul1_fs03ost580002_classlist.xml
#
# In each file, student data would be stored in the following format
# 
# <student username="smith">
#  <autharg>MSU.EDU</autharg>
#  <authtype>krb4</authtype>
#  <email>smith@msu.edu</email>
#  <enddate></enddate>
#  <firstname>John</firstname>
#  <generation>II</generation>
#  <groupID>fs03nop590001</groupID>
#  <lastname>Smith</lastname>
#  <middlename>D</middlename>
#  <startdate></startdate>
#  <studentID>A12345678</studentID>
# </student>
# 
# with the following at the top of the file
#<?xml version="1.0" encoding="UTF-8"?>
#<!DOCTYPE text>
#<students>
#
# (all comment - #s removed)
#
# and a closing:
#</students>
#
# The <startdate> and the <enddate> are the activation date and expiration date
# for this student's role. If they are absent, then the default access start and
# default access end dates are used. The default access dates can be set when 
# the course is created, and can be modified using the Automated Enrollment
# Manager, or via the 'Upload a class list','Enroll a single student' or 
# 'Modify student data' utilities in the Enrollment Manager, by checking the 
# 'make these dates the default for future enrollment' checkbox. If no default 
# dates have been set, then the tudent role will be active immediately, and will 
# remain active until the role is explicitly expired using ENRL -> Drop students. 
# If dates are to included in the XML file, they should be in the format
# YYYY:MM:DD:HH:MM:SS (: separators required).
#
# If there were 10 students in fs03nop590001, 5 students in fs03nop59o601, 
# 8 students in fs03nop590602, and 2 students in fs03ost580002,
# then $$reply{'43551dedcd43febmsul1'} = 25
#
# The purpose of the %reply hash is to detect cases where the institutional 
# enrollment is 0 (most likely due to a problem with the data source).
# In such a case, the LON-CAPA course roster is left unchanged (i.e., no
# students are expired, even if automated drops is enabled.
# 
# fetch_enrollment should return a 0 or 1, depending on whether a connection
# could be established to the institutional data source.
# 0 is returned if no connection could be made.
# 1 is returned if connection was successful
#
# A return of 1 is required for the calling modules to perform LON-CAPA
# roster changes based on the contents of the XML classlist file(s), e,g,,
# msu_43551dedcd43febmsul1_fs03nop590001_classlist.xml
#
# XML classlist files are temporary. They are deleted after the enrollment 
# update process in the calling module is complete.
#
################################

use File::Copy;

sub fetch_enrollment {
    my ($dom,$affiliatesref,$replyref) = @_;
    my $configvars = &LONCAPA::Configuration::read_conf('loncapa.conf');
    my $rosterdir = '/home/www/rosters';
    my $countdir = $rosterdir.'/counts';
    foreach my $crs (sort keys %{$affiliatesref}) {
        $$replyref{$crs} = 0;
    }
    my $okflag = 0;
    if (opendir(DIR,$rosterdir)) {
        my @files = grep(/_classlist\.xml$/,@readdir(DIR));
        if (@files > 0) {
            $okflag = 1;
            my $xmldir = $$configvars{'lonDaemons'}.'/tmp';
            if (ref($affiliatesref) eq 'HASH') {
                foreach my $crs (sort(keys(%{$affiliatesref}))) {
                    if (ref($affiliatesref{$crs}) eq 'ARRAY') { 
                        foreach my $class (@{$affiliatesref->{$crs}}) {
                            my $xmlfile = $class."_classlist.xml";
                            if (-e "$rosterdir/$filename") {
                                if (&File::Copy::copy("$rosterdir/$xmlfile","$xmldir/$xmlfile")) {
                                    my $countfile = $class."_count.txt"; 
                                    if (-e "$countdir/$countfile") {
                                        if (open(my $fh,"<$countdir/$countfile")) {
                                            my $studentcount = <$fh>;
                                            close($fh);
                                            if ($studentcount =~ /^\d+$/) {
                                                $$replyref{$crs} += $studentcount;
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    return $okflag;
}

###############################
# sub get_sections
#
# This is called by the Automated Enrollment Manager interface
# (lonpopulate.pm) to create an array of valid sections for 
# a specific institutional coursecode.
# e.g., for MSU coursecode: fs03nop590
# ("001","601","602") would be returned
#
# If the array returned contains at least one element, then 
# the interface offerred to the course coordinator, lists
# official sections and provides a checkbox to use to
# select enrollment in the LON-CAPA course from each official section.  
#
# get_sections takes two arguments - (a) the institutional coursecode
# (in the MSU case this is a concatenation of semester code, department
# and course number), and (b) the LON-CAPA domain that contains the course. 
# 
# If there is no access to official course sections at your institution,
# then an empty array is returned, and the Automated Enrollment Manager
# interface will allow the course coordinator to enter section numbers
# in text boxes.
# 
###############################

sub get_sections {
    my ($coursecode,$dom) = @_;
    my @secs = ();
    return @secs;
}

###############################
# sub new_course
#
# This is called by loncreatecourse.pm and 
# lonpopulate.pm to record that fact that a new course section
# has been added to LON-CAPA that requires access to institutional data
# At MSU, this is required, as institutional classlists can only made
# available to faculty who are officially assigned to a course.
# 
# The new_course subroutine is used to check that the course owner
# of the LON-CAPA course is permitted to access the institutional
# classlist for any course sections and crosslisted classes that
# the course coordinator wishes to have affiliated with the course.
# 
# If access is permitted, then 'ok' is returned.
# The course section or crosslisted course will only be added to the list of
# affiliates if 'ok' is returned.
#
# new_course takes three arguments -
# (a) the institutional courseID (in the MSU case this is a concatenation of 
# semester code, department code, course number, and section number
# e.g., fs03nop590001).
# (b) the course owner. This is the LON-CAPA username and domain of the course 
# coordinator assigned to the course when it is first created, in the form
# username:domain
# (c) the LON-CAPA domain that contains the course
#
#################################

sub new_course  {
    my ($course_id,$owner,$dom) = @_;
    my $outcome = 'ok';
    return $outcome;
}

###############################
# sub validate_courseID
#
# This is called whenever a new course section or crosslisted course
# is being affiliated with a LON-CAPA course (i.e., by loncreatecourse.pm
# and the Automated Enrollment Manager in lonpopulate.pm).
# A check is made that the courseID that the course coordinator wishes
# to affiliate with the course is valid according to the institutional
# schedule of official classes 
#
# A valid courseID is confirmed by returning 'ok'
#
# validate_courseID takes two arguments -
# (a) the institutional courseID (in the MSU case this is a concatenation of
# semester code, department code, course number, and section number
# e.g., fs03nop590001).
# (b) the LON-CAPA domain that contains the course
#
###############################  

sub validate_courseID {
    my ($course_id,$dom) = @_;
    my $outcome = 'ok';
    return $outcome;   
}

###############################
# sub create_password 
#
# This is called when the authentication method set for the automated 
# enrollment process when enrolling new users in the domain is "localauth".
# This could be signalled for the specific user by the value of localauth
# for the <authtype> tag from the classlist.xml files, or if this is blank,
# the default authtype, set by the domain coordinator when creating the course
# with loncreatecourse.pm.
#  
# create_password takes three arguments -
# (a) $authparam - the value of <autharg> from the classlist.xml files,
# or if this blank, the default autharg, set by the domain coordinator when 
# creating the course with loncreatecourse.pm
# (b) $dom - the domain of the new user.
# (c) $username - the username of the new user (currently not actually used)
#
# Four values are returned:
# (a) the value of $authparam - which might have been changed
# (b) a flag to indicate whether a password had been created
# 0 means no password created
# 1 means password created.  In this case the calling module - Enrollment.pm
# will send the LON-CAPA username and password to the new user's e-mail
# (if one was provided), or to the course owner (if one was not provided and
# the new user was created by the automated process), or to the active
# course coordinator (if the new user was created using the 'update roster
# now' interface included in the Automated Enrollment Manager).  
# (c) a flag to indicate that the authentication method is correct - 'ok'.
# If $authchk is not set to 'ok' then account creation and enrollment of the 
# new user will not occur.
# (d) if a password was created it can be sent along.  This is the password 
# which will be included in the e-mail sent to the new user, or made available    
# to the course owner/course coordinator if no e-mail address is provided. If
# you do not wish to send a password, but want to give instructions on obtaining
# one, you could set $newpasswd as those instructions. (e.g.,
# $newpasswd = '(Please visit room 212, ACNS Bldg. to obtain your password)';
# The value of $newpasswd is NOT written in the user's LON-CAPA passwd file in
# /home/httpd/lonUsers/$dom/a/b/c/abcuser/passwd, which in the case of a user
# employing localauth will contain 'localauth:$authparam'.  If you need to include
# a parameter in the user's passwd file, you should return it as $authparam,
# i.e., the first of the variables returned by create_password().             
###############################

sub create_password {
    my ($authparam,$dom,$username) = @_;
    my $authchk = 'ok';
    my $newpasswd = '';
    my $create_passwd = 0;
    return ($authparam,$create_passwd,$authchk,$newpasswd);
}

###############################
# sub instcode_format 
#
# Split coursecodes into constituent parts.   
# e.g., INSTITUTIONALCODE = fs03nop590, LON-CAPA COURSEID: 43551dedcd43febmsul1
# (MSU's course naming scheme - fs03 = Fall semester 2003, nop =
# department name, 590 = course number)
#
# Incoming data:
# $dom (domain)
# $$instcodes{'43551dedcd43febmsul1'} = 'fs03nop590' (hash of courseIDs)
# 
# fs03nop590 would be split as follows
# @{$codetitles} = ("year","semester","department","number")
# $$codes{{'year'} = '2003'
# $$codes{'semester'} = 'Fall'
# $$codes{'department'} = 'nop'
# $$codes{'number'} = '590'
#
# requires six arguments:
# domain ($dom)
# reference to hash of institutional course IDs ($instcodes)  
# reference to hash of codes ($codes)
# reference to array of titles ($codetitles)
# reference to hash of abbreviations used in categories
# reference to hash of arrays specifying sort order used in category titles   
#
# e.g.,     %{$$cat_titles{'Semester'}} = (
#                   fs => 'Fall',
#                   ss => 'Spring',
#                   us => 'Summer');
#
# e.g., @{$$cat_order{'Semester'}} = ('ss','us','fs'); 
# returns 1 parameter: 'ok' if no processing errors.  
###############################

sub instcode_format () {
    my ($dom,$instcodes,$codes,$codetitles,$cat_titles,$cat_order) = @_;
    @{$codetitles} = ("Year","Semester","Department","Number");
    %{$$cat_titles{'Semester'}} = (
                   Fall => 'Fall',
                   Spring => 'Spring',
                   Summer => 'Summer'
                    );
    @{$$cat_order{'Semester'}} = ('Spring','Summer','Fall');
    foreach my $cid (keys %{$instcodes}) {
        my ($dept,$crs,$yearsem) = split(/\-/,$$instcodes{$cid});
        if ($dept ne '' && $crs ne '' && $yearsem ne '') {
            if ($yearsem =~ /^(\d{4})(Fall|Spring|Summer)$/) {
                $$codes{$cid}{'Year'} = $1;
                $$codes{$cid}{'Semester'} = $2;
                $$codes{$cid}{'Department'} = $dept;
                $$codes{$cid}{'Number'} = '-'.$crs.'-';
                if (!defined($$cat_titles{'Year'}{$$codes{$cid}{'Year'}})) {
                    $$cat_titles{'Year'}{$$codes{$cid}{'Year'}} = $$codes{$cid}{'Year'};
                }
                if (!defined($$cat_titles{'Number'}{$crs})) {
                    $$cat_titles{'Number'}{'-'.$crs.'-'} = $crs;
                }
            }
        }
    }
    my $outcome = 'ok';
    return $outcome;
}

###############################
# sub institutional_photos
#
# Called when automated enrollment manager is used to update student photos.
#
# Incoming data: six arguments
# (a) $dom (domain)
# (b) $crs (LONCAPA course number)
# (c) $affiliates: a reference to a hash with the keys set to the 
# institutional course IDs for the course.
# (d) $result: a reference to a hash which will return usernames  
#     of students (& separated) in following categories (the keys):
#     new, update, missing, same, deleted, noid, nouser. The list 
#     includes those students for whom the result of the modification 
#     process was either addition of a new photo. update of an
#     existing photo, photo was found to be missing from institution's
#     data store, photo used is same as before, or photo was 
#     deleted from storage on LON-CAPA server housing student's
#     information, no student ID was available. 
               
# (e) $action: the type of action needed. (e.g., update, delete);
# (f) $students: a reference to a hash with the keys set to student 
# usernames and domains in the form username:domain, and values set
# to the studentID, if action is required for specific students.  
#
# returns 1 parameter: 'ok' if no processing errors.
# other course or student specific values can be stored as values
# in the appropriate referenced hashes. 
###############################

sub institutional_photos {
    my ($dom,$crs,$affiliates,$result,$action,$students) = @_;
    my $outcome = 'ok';
    return $outcome;
}

###############################
# sub photo_permission
#
# Incoming data: three arguments
# (a) $dom (domain)
# (b) $perm_reqd: a reference to a a scalar that is either 'yes'
# if a course owner must indicate acceptance of conditions of use,
# 'no' otherwise.
# (c) $conditions: the text of the conditions of use.
#    
# returns 1 parameter: 'ok' if no processing errors.
# $$perm_reqd is set to 'yes' or 'no'
# $$agreement is set to conditions of use - plain text string
#             which will be displayed in a textarea in a web form.
###############################
 
sub photo_permission {
   my ($dom,$perm_reqd,$conditions) = @_;
   $$perm_reqd = 'no';
   $$conditions = '';
   my $outcome = 'ok';
   return $outcome;
}


###############################
# sub manager_photo_update
#
# Incoming data: one argument
# (a) $dom (domain)
#
# returns 2 parameters: update (0 or 1), and comment.
# Called by automated enrollment manager, to determine 
# whether "Update Student photos" button will be available,
# and if so, the message (plain text string) that will be displayed
# with the button. 
###############################
                                                                                        
sub manager_photo_update {
    my ($dom) = @_;
    my $update = 0;
    my $comment = '';
    return ($update,$comment);
}

###############################
# sub check_section
#
# Incoming data: three arguments (+ fourth optional argument)
# (a) $class - institutional class id (coursecode concatanated with section) 
# (b) $owner - course owner (2.2 and later username:domain; pre-2.2 username;
#                            2.6 and later - comma-separated list of 
#                            username:domain for course owner and co-owners.)
# (c) $dom - domain of course
# (d) $dbh - optional database handle
#
# returns 1 parameter - $sectioncheck ('ok' or other value). 
# Verifies that at least one of the course owner (or co-owners) have access 
# to classlist for specific class according to institution's SIS
# 'ok' if access available  
###############################

sub check_section {
    my ($class,$owner,$dom,$dbh) = @_;
    my $sectioncheck = 'ok';
    return $sectioncheck;
}

###############################
# sub instcode_defaults
#
# Incoming data: three arguments
# (a) $dom - domain
# (b) $defaults - reference to hash which will contain default regular
#                 expression matches for different components of an 
#                 institutional course code 
# (c) $code_order - reference to array which will contain order of 
#                   component parts used in institutional code.  
#
# returns 1 parameter - ('ok' or other value).
# Used to construct a regular expression to be used when searching for
# courses based on fragments of an institutional code.
# $defaults contains defaults to use for each component, and code_order
# contains keys of hash in order in which they are to be concatenated.
#
# e.g., INSTITUTIONALCODE = fs03nop590
# (MSU's course naming scheme - fs  = semester, 03 = year, nop =
# department name, 590 = course number)
#
#     %{$defaults} = (
#        'Year' => '\d{2}',
#        'Semester' => '^[sfu]s', 
#        'Department' => '\w{2,3}',
#        'Number' => '\d{3,4}\w?',
#     );
#
#     @{$code_order} = ('Semester','Year','Department','Number');
#
###############################

sub instcode_defaults {
    my ($dom,$defaults,$code_order) = @_;
    %{$defaults} = (
        'Year' => '\d{4}',
        'Semester' => '(Fall|Spring|Summer)',
        'Department' => '\w{3,4}',
        'Number' => '\-\d{3,4}\w?\-',
    );
    @{$code_order} = ('Department','Number','Year','Semester');
    return 'ok';
}

###############################
# sub allusers_info
#
# Incoming data: three arguments
# (a) $dom - domain
# (b) $instusers - reference to hash which will contain hashes, 
#                 where keys will be usernames and value will be a 
#                 hash of user information. Keys in the inner hash 
#                 will be some or all of: lastname,firstname,
#                 middlename, generation, id, inststatus - 
#                 institutional status (e.g., faculty,staff,student)
#                 Values are all scalars except inststatus,
#                 which is an array.
# (c) $instids - reference to hash which will contain ID numbers. 
#                keys will be unique IDs (student or faculty/staff ID)
#                values will be either: scalar (username) or an array 
#                if a single ID matches multiple usernames.
# returns 1 parameter - 'ok' if no processing error, or other value 
#                       if an error occurred.
# side effects - populates the $instusers and $instids refs to hashes.
#                with information for all users from all available 
#                institutional datafeeds.
#
###############################

sub allusers_info {
    my ($dom,$instusers,$instids) = @_;
    my $outcome = 'ok';
    return $outcome; 
}

###############################
# sub get_userinfo
#
# Incoming data: four required arguments and additional optional arguments
# Two modes of operation:
# (1) Retrieves institutional data for a single user either by username
#     if $uname is included as second argument, or by ID if $id is 
#     included as a third argument.  Either (b) or (c) must be provided.
#     (g), (h) and (i) will be undefined.
# (2) Retrieves institutional user data from search of an institutional
#     directory based on a search. (g) and (h) are required.
#     (i) is optional. (b) and (c) will be undefined. 
#
# (a) $dom - domain
# (b) $uname - username of user
# (c) $id - student/faculty ID of user
# (d) $instusers - reference to hash which will contain info for user
#                 as key = value; keys will be one or all of:
#                 lastname,firstname,middlename,generation,id,inststatus -
#                 institutional status (e.g., faculty,staff,student)
#                 Values are all scalars except inststatus,
#                 which is an array.
# (e) $instids - reference to hash which will contain ID numbers - 
#                 keys will be unique IDs (student or faculty/staff ID)  
#                 values will be either: scalar (username) or an array
#                 if a single ID matches multiple usernames.
# (f) $types - optional reference to array which contains 
#              institutional types to check.
# (g) $srchby - optional if $uname or $id defined, otherwise required.
#               Allowed values include: 1. lastfirst, 2. last, 3. uname
#               corresponding to searches by 1. lastname,firstname;
#               2. lastname; 3. username
# (h) $srchterm - optional if $uname or $id defined, otherwise required
#                String to search for.
# (i) $srchtype - optional. Allowed values: contains, begins (defaults
#                to exact match otherwise).
#
# returns 1 parameter - 'ok' if no processing error, or other value 
#                       if an error occurred.
# side effects - populates the $instusers and $instids refs to hashes.
#                with information for specified username, or specified
#                id, if fifth argument provided, from all available, or 
#                specified (e.g., faculty only) institutional datafeeds,
#                if sixth argument provided.
#
# WARNING: You need to set $outcome to 'ok' once you have customized
#          this routine to communicate with an instititional 
#          directory data source, otherwise institutional directory 
#          searches will always be reported as being unavailable
#          in domain $dom.
#
###############################

sub get_userinfo {
    my ($dom,$uname,$id,$instusers,$instids,$types,
        $srchby,$srchterm,$srchtype) = @_;
    my $outcome = 'unavailable';
    return $outcome;
}

###############################
# sub inst_usertypes 
#
# Incoming data: three arguments
# (a) $dom - domain
# (b) $usertypes - reference to hash which will contain 
#                 key = value, where keys are institution 
#                 affiliation types (e.g., Faculty, Student etc.)
#                 and values are titles (e.g., Faculty/Academic Staff)
# (c) $order - reference to array which will contain the order in
#              which institutional types should be shown
#              when displaying data tables (e.g., default quotas    
#              or updateable user fields (see domainprefs.pm) 
# returns 1 parameter - 'ok' if no processing error, or other value 
#                        if an error occurred.
#
###############################

sub inst_usertypes {
    my ($dom,$usertypes,$order) = @_;
    @{$order} = ();
    %{$usertypes} = ();
    my $outcome = 'ok';
    return $outcome;
}

###############################
# sub username_rules
#
# Incoming data: three arguments 
# (a) $dom - domain
# (b) $ruleshash - reference to hash containing rules
#                  (a hash of a hash)
#                  keys of top level hash are short names  
#                   (e.g., netid, noncredit) 
#                  for each key, value is a hash
#                      desc => long name for rule  
#                      rule => description of rule
#                      authtype => (krb5,krb4,int, or loc)
#                                 authentication type for rule 
#                      authparm => authentication parameter for rule
#                      authparmfixed => 1 if authparm used when
#                          creating user for rule must be authparm  
#                      authmsg => Message to display describing 
#                                 authentication to use for this rule
#
# (c) $rulesorder - reference to array containing rule names 
#                   in order to be displayed

#
#  returns 'ok' if no processing error.
#
############################### 

sub username_rules {
    my ($dom,$ruleshash,$rulesorder) = @_;
    my $outcome;
    return $outcome;
}

###############################
# sub id_rules
#
# Incoming data: three arguments
# (a) $dom - domain
# (b) $ruleshash - reference to hash containing rules
#                  (a hash of a hash)
#                  keys of top level hash are short names
#                   (e.g., netid, noncredit)
#                  for each key, value is a hash
#                      desc => long name for rule
#                      rule => description of rule
#
# (c) $rulesorder - reference to array containing rule names
#                   in order to be displayed

#
#  returns 'ok' if no processing error.
#
###############################

sub id_rules {
    my ($dom,$ruleshash,$rulesorder) = @_;
    my $outcome;
    return $outcome;
}

###############################
# sub username_check 
#
# Incoming data: four arguments
# (a) $dom - domain (scalar) 
# (b) $uname - username to compare against rules (scalar)
# (c) $to_check (reference to array of rule names to check)
# (d) $resultshash (reference to hash of results)
#                    hash of results for rule checked
#                   - keys are rule names
#                   - values are: 1 or 0 (for matched or unmatched) 
#
# returns 'ok' if no processing error.
#
###############################

sub username_check {
    my ($dom,$uname,$to_check,$resultshash) = @_;
    my $outcome;
    return $outcome; 
}

###############################
# sub id_check
#
# Incoming data: four arguments
# (a) $dom - domain (scalar)
# (b) $id - ID to compare against rules (scalar)
# (c) $to_check (reference to array of rule names to check)
# (d) $resultshash (reference to hash of results)
#                    hash of results for rule checked
#                   - keys are rule names
#                   - values are: 1 or 0 (for matched or unmatched)
#
# returns 'ok' if no processing error.
#
###############################

sub id_check {
    my ($dom,$id,$to_check,$resultshash) = @_;
    my $outcome;
    return $outcome;
}

###############################
# sub AUTOLOAD
#
# Incoming data: none
# Returns ''
#
# Prevents errors when undefined subroutines are called in this package
# Will allow new routines added in the future to be called from lond etc.
# without the need for customized versions of local*.pm packages to be
# modified to include the new subroutines immediately.
#
# See "Programming Perl" 3rd ed. pp 296-298.   
###############################

sub AUTOLOAD {
    our $AUTOLOAD;
    return '';
}

1;

--raeburn1203038647--