#!perl
################################################################################
# WeBWorK Online Homework Delivery System
# Copyright © 2000-2007 The WeBWorK Project, http://openwebwork.sf.net/
# $CVSHeader: webwork2/conf/global.conf.dist,v 1.225 2010/05/18 18:03:31 apizer Exp $
# 
# This program is free software; you can redistribute it and/or modify it under
# the terms of either: (a) the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any later
# version, or (b) the "Artistic License" which comes with this package.
# 
# This program 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 either the GNU General Public License or the
# Artistic License for more details.
################################################################################

# This file is used to set up the default WeBWorK course environment for all
# requests. Values may be overwritten by the course.conf for a specific course.
# All package variables set in this file are added to the course environment.
# If you wish to set a variable here but omit it from the course environment,
# use the "my" keyword. The $webwork_dir variable is set in the WeBWorK Apache
# configuration file (webwork.apache-config) and is available for use here. In
# addition, the $courseName variable holds the name of the current course.

################################################################################
# Seed variables
################################################################################

# Set these variables to correspond to your configuration and preferences. You
# will need to restart the webserver to reset the variables in this section.

# URL of WeBWorK handler. If WeBWorK is to be on the web server root, use "". Note 
# that using "" may not work so we suggest sticking with "/webwork2".
$webwork_url         = "/webwork2";


$server_root_url   = "";  # e.g.  http://webwork.yourschool.edu
$server_userID     = "";  # e.g.  www-data    
$server_groupID    = "";  # e.g.  wwdata


# In the apache configuration file (often called httpd.conf) you will find
# User wwadmin   --- this is the $server_userID -- of course it may be wwhttpd or some other name
# Group wwdata   --- this is the $server_groupID -- this will have different names also

# Root directory of PG.
$pg_dir              = "/opt/webwork/pg";

# URL and path to htdocs directory.
# Uncomment the second line below when using litetpd
$webwork_htdocs_url  = "/webwork2_files";
$webwork_htdocs_dir  = "$webwork_dir/htdocs";

# URL and path to courses directory.
$webwork_courses_url = "/webwork2_course_files";
$webwork_courses_dir = "/opt/webwork/courses"; #(a typical place to put the course directory

################################################################################
# Paths to external programs 
################################################################################

# system utilities
$externalPrograms{mv}    = "/bin/mv";
$externalPrograms{cp}    = "/bin/cp";
$externalPrograms{rm}    = "/bin/rm";
$externalPrograms{mkdir} = "/bin/mkdir";
$externalPrograms{tar}   = "/bin/tar";
$externalPrograms{gzip}  = "/bin/gzip";

# equation rendering/hardcopy utiltiies
$externalPrograms{latex}    = "/usr/bin/latex";
$externalPrograms{pdflatex} = "/usr/bin/pdflatex --shell-escape";
$externalPrograms{dvipng}   = "/usr/bin/dvipng";
$externalPrograms{tth}      = "/usr/bin/tth";

####################################################
# NetPBM - basic image manipulation utilities
# Most sites only need to configure $netpbm_prefix.
####################################################
my $netpbm_prefix = "/usr/bin";
$externalPrograms{giftopnm} = "$netpbm_prefix/giftopnm";
$externalPrograms{ppmtopgm} = "$netpbm_prefix/ppmtopgm";
$externalPrograms{pnmtops}  = "$netpbm_prefix/pnmtops";
$externalPrograms{pnmtopng} = "$netpbm_prefix/pnmtopng";
$externalPrograms{pngtopnm} = "$netpbm_prefix/pngtopnm";

# url checker
$externalPrograms{checkurl} = "/usr/bin/lwp-request -d -mHEAD "; # or "/usr/local/bin/w3c -head "

# image conversions utiltiies
# the source file is given on stdin, and the output expected on stdout.
$externalPrograms{gif2eps} = "$externalPrograms{giftopnm} | $externalPrograms{ppmtopgm} | $externalPrograms{pnmtops} -noturn 2>/dev/null";
$externalPrograms{png2eps} = "$externalPrograms{pngtopnm} | $externalPrograms{ppmtopgm} | $externalPrograms{pnmtops} -noturn 2>/dev/null";
$externalPrograms{gif2png} = "$externalPrograms{giftopnm} | $externalPrograms{pnmtopng}";

# mysql clients
$externalPrograms{mysql}     = "/usr/bin/mysql";
$externalPrograms{mysqldump} = "/usr/bin/mysqldump";

################################################################################
# Mail settings
################################################################################

# Mail sent by the PG system and the mail merge and feedback modules will be
# sent via this SMTP server.
$mail{smtpServer}            = 'mail.yourschool.edu';

# When connecting to the above server, WeBWorK will send this address in the
# MAIL FROM command. This has nothing to do with the "From" address on the mail
# message. It can really be anything, but some mail servers require it contain
# a valid mail domain, or at least be well-formed.
$mail{smtpSender}            = 'webwork@yourserver.yourschool.edu';

# Seconds to wait before timing out when connecting to the SMTP server.
$mail{smtpTimeout}           = 30;

# AllowedRecipients defines addresses that the PG system is allowed to send mail
# to. this prevents subtle PG exploits. This should be set in course.conf to the
# addresses of professors of each course. Sending mail from the PG system (i.e.
# questionaires, essay questions) will fail if this is not set somewhere (either
# here or in course.conf).
$mail{allowedRecipients}     = [
	#'prof1@yourserver.yourdomain.edu',
	#'prof2@yourserver.yourdomain.edu',
];

# By default, feeback is sent to all users who have permission to
# receive_feedback. If this list is non-empty, feedback is also sent to the
# addresses specified here.
# 
# * If you want to disable feedback altogether, leave this empty and set
#   submit_feeback => $nobody in %permissionLevels below. This will cause the
#   feedback button to go away as well.
# 
# * If you want to send email ONLY to addresses in this list, set
#   receive_feedback => $nobody in %permissionLevels below.
# 
# It's often useful to set this in the course.conf to change the behavior of
# feedback for a specific course.
# 
# Items in this list may be bare addresses, or RFC822 mailboxes, like:
#   'Joe User <joe.user@example.com>'
# The advantage of this form is that the resulting email will include the name
# of the recipient in the "To" field of the email.
# 
$mail{feedbackRecipients}    = [
	#'prof1@yourserver.yourdomain.edu',
	#'prof2@yourserver.yourdomain.edu',
];

# Feedback subject line -- the following escape sequences are recognized:
# 
#   %c = course ID
#   %u = user ID
#   %s = set ID
#   %p = problem ID
#   %x = section
#   %r = recitation
#   %% = literal percent sign
# 

$mail{feedbackSubjectFormat} = "[WWfeedback] course:%c user:%u set:%s prob:%p sec:%x rec:%r";

# feedbackVerbosity:
#  0: send only the feedback comment and context link
#  1: as in 0, plus user, set, problem, and PG data
#  2: as in 1, plus the problem environment (debugging data)
$mail{feedbackVerbosity}     = 1;

# Defines the size of the Mail Merge editor window
# FIXME: should this be here? it's UI, not mail
# FIXME: replace this with the auto-size method that TWiki uses
$mail{editor_window_rows}    = 15;
$mail{editor_window_columns} = 100;

###################################################
# Customizing the action of the "Email your instructor" button
###################################################

# Use this to customize the text of the feedback button.
$feedback_button_name = "Email instructor";

# If this value is true, feedback will only be sent to users with the same
# section as the user initiating the feedback.
$feedback_by_section = 0;

# If the variable below is set to a non-empty value (i.e. in course.conf), WeBWorK's usual
# email feedback mechanism  will be replaced with a link to the given URL.
# See also $feedback_button_name, above.

$courseURLs{feedbackURL} = "";

# If the variable below is set to a non-empty value (i.e. in course.conf), 
# WeBWorK's usual email feedback mechanism  will be replaced with a link to the given URL and
# a POST request with information about the problem including the HTML rendering
# of the problem will be sent to that URL.
# See also $feedback_button_name, above.

#$courseURLs{feedbackFormURL} = "http://www.mathnerds.com/MathNerds/mmn/SDS/askQuestion.aspx";  #"http://www.tipjar.com/cgi-bin/test";
$courseURLs{feedbackFormURL} = "";

################################################################################
# Theme
################################################################################

$defaultTheme = "math2";
$defaultThemeTemplate = "system";

################################################################################
# Language
################################################################################

$language = "en";   # tr = turkish,  en=english

################################################################################
# System-wide locations (directories and URLs)
################################################################################

# The root directory, set by webwork_root variable in Apache configuration.
$webworkDirs{root}          = "$webwork_dir";

# Location of system-wide data files.
$webworkDirs{DATA}          = "$webworkDirs{root}/DATA";

# Used for temporary storage of uploaded files.
$webworkDirs{uploadCache}   = "$webworkDirs{DATA}/uploads";

# Location of utility programs.
$webworkDirs{bin}           = "$webworkDirs{root}/bin";

# Location of configuration files, templates, snippets, etc.
$webworkDirs{conf}          = "$webworkDirs{root}/conf";

# Location of theme templates.
$webworkDirs{templates}     = "$webworkDirs{conf}/templates";

# Location of course directories.
$webworkDirs{courses}       = "$webwork_courses_dir" || "$webworkDirs{root}/courses";

# Contains log files.
$webworkDirs{logs}          = "$webworkDirs{root}/logs";

# Contains non-web-accessible temporary files, such as TeX working directories.
$webworkDirs{tmp}           = "$webworkDirs{root}/tmp";

# The (absolute) destinations of symbolic links that are OK for the FileManager to follow.
#   (any subdirectory of these is a valid target for a symbolic link.)
# For example:
#    $webworkDirs{valid_symlinks} = ["$webworkDirs{courses}/modelCourse/templates","/ww2/common/sets"];
$webworkDirs{valid_symlinks}   = [];

################################################################################
##### The following locations are web-accessible.
################################################################################

# The root URL (usually /webwork2), set by <Location> in Apache configuration.
$webworkURLs{root}          = "$webwork_url";

# Location of system-wide web-accessible files, such as equation images, and
# help files.
$webworkDirs{htdocs}        = "$webwork_htdocs_dir" || "$webworkDirs{root}/htdocs";
$webworkURLs{htdocs}        = "$webwork_htdocs_url";

# Location of web-accessible temporary files, such as equation images.
$webworkDirs{htdocs_temp}   = "$webworkDirs{htdocs}/tmp";
$webworkURLs{htdocs_temp}   = "$webworkURLs{htdocs}/tmp";

# Location of cached equation images.
$webworkDirs{equationCache} = "$webworkDirs{htdocs_temp}/equations";
$webworkURLs{equationCache} = "$webworkURLs{htdocs_temp}/equations";

# Contains context-sensitive help files.
$webworkDirs{local_help}    = "$webworkDirs{htdocs}/helpFiles";
$webworkURLs{local_help}    = "$webworkURLs{htdocs}/helpFiles";

# URL of general WeBWorK documentation.
$webworkURLs{docs}          = "http://webwork.maa.org";

# URL of WeBWorK Bugzilla database.
$webworkURLs{bugReporter}   = "http://bugs.webwork.maa.org/enter_bug.cgi";

# Location of CSS
# $webworkURLs{stylesheet}    = "$webworkURLs{htdocs}/css/${defaultTheme}.css";
# this is never used -- changing the theme from the config panel
# doesn't appear to reset the theme in time?
# It's better to refer directly to the .css file in the system.template
# <link rel="stylesheet" type="text/css" href="<!--#url type="webwork" name="htdocs"-->/css/math.css"/>

# Location of jsMath script, used for the jsMath display mode.
$webworkURLs{jsMath}        = "$webworkURLs{htdocs}/jsMath/jsMath-ww.js";

# Location of MathJax script, used for the MathJax display mode.
$webworkURLs{MathJax}       = "$webworkURLs{htdocs}/mathjax/MathJax.js?config=TeX-AMS_HTML-full";

# Location of Tabber script, used to generate tabbed widgets.
$webworkURLs{tabber}		= "$webworkURLs{htdocs}/js/tabber.js";

# Location of ASCIIMathML script, used for the asciimath display mode.
$webworkURLs{asciimath}     = "$webworkURLs{htdocs}/ASCIIMathML/ASCIIMathML.js";

# Location of LaTeXMathML script, used for the LaTeXMathML display mode.
$webworkURLs{LaTeXMathML}   = "$webworkURLs{htdocs}/LaTeXMathML/LaTeXMathML.js";

################################################################################
# Defaults for course-specific locations (directories and URLs)
################################################################################

# The root directory of the current course. (The ID of the current course is
# available in $courseName.)
$courseDirs{root}        = "$webworkDirs{courses}/$courseName";

# Location of course-specific data files.
$courseDirs{DATA}        = "$courseDirs{root}/DATA";

# Location of course HTML files, passed to PG.
$courseDirs{html}        = "$courseDirs{root}/html";
$courseURLs{html}        = "$webwork_courses_url/$courseName";

# Location of course image files, passed to PG.
$courseDirs{html_images} = "$courseDirs{html}/images";

# Location of web-accessible, course-specific temporary files, like static and
# dynamically-generated PG graphics.
$courseDirs{html_temp}   = "$courseDirs{html}/tmp";
$courseURLs{html_temp}   = "$courseURLs{html}/tmp";

# Location of course-specific logs, like the transaction log.
$courseDirs{logs}        = "$courseDirs{root}/logs";

# Location of scoring files.
$courseDirs{scoring}     = "$courseDirs{root}/scoring";

# Location of PG templates and set definition files.
$courseDirs{templates}   = "$courseDirs{root}/templates";

# Location of course-specific macro files.
$courseDirs{macros}      = "$courseDirs{templates}/macros";

# Location of mail-merge templates.
$courseDirs{email}       = "$courseDirs{templates}/email";

# Location of temporary editing files.
$courseDirs{tmpEditFileDir}  = "$courseDirs{templates}/tmpEdit";


# mail merge status directory
$courseDirs{mailmerge}   = "$courseDirs{DATA}/mailmerge";

################################################################################
# System-wide files
################################################################################

# Location of this file.
$webworkFiles{environment}                      = "$webworkDirs{conf}/global.conf";

# Flat-file database used to protect against MD5 hash collisions. TeX equations
# are hashed to determine the name of the image file. There is a tiny chance of
# a collision between two TeX strings. This file allows for that. However, this
# is slow, so most people chose not to worry about it. Set this to "" if you
# don't want to use the equation cache file.
$webworkFiles{equationCacheDB}                  = ""; # "$webworkDirs{DATA}/equationcache";

################################################################################
# Hardcopy snippets are used in constructing a TeX file for hardcopy output.
# They should contain TeX code unless otherwise noted.
################################################################################
# The preamble is the first thing in the TeX file.
$webworkFiles{hardcopySnippets}{preamble}       = "$webworkDirs{conf}/snippets/hardcopyPreamble.tex";

# The setHeader preceeds each set in hardcopy output. It is a PG file.
# This is the default file which is used if a specific files is not selected
$webworkFiles{hardcopySnippets}{setHeader}      = "$webworkDirs{conf}/snippets/setHeader.pg";  # hardcopySetHeader.pg",
#$webworkFiles{hardcopySnippets}{setHeader}     = "$courseDirs{templates}/ASimpleHardCopyHeaderFile.pg"; # An alternate default header file

# The problem divider goes between problems.
$webworkFiles{hardcopySnippets}{problemDivider} = "$webworkDirs{conf}/snippets/hardcopyProblemDivider.tex";

# The set footer goes after each set. Is is a PG file.
$webworkFiles{hardcopySnippets}{setFooter}      = "$webworkDirs{conf}/snippets/hardcopySetFooter.pg";

# The set divider goes between sets (in multiset output).
$webworkFiles{hardcopySnippets}{setDivider}     = "$webworkDirs{conf}/snippets/hardcopySetDivider.tex";

# The user divider does between users (in multiuser output).
$webworkFiles{hardcopySnippets}{userDivider}    = "$webworkDirs{conf}/snippets/hardcopyUserDivider.tex";

# The postabmle is the last thing in the TeX file.
$webworkFiles{hardcopySnippets}{postamble}      = "$webworkDirs{conf}/snippets/hardcopyPostamble.tex";

##### Screen snippets are used when displaying problem sets on the screen.

# The set header is displayed on the problem set page. It is a PG file.
# This is the default file which is used if a specific files is not selected
#$webworkFiles{screenSnippets}{setHeader}        = "$webworkDirs{conf}/snippets/setHeader.pg"; # screenSetHeader.pg"
$webworkFiles{screenSnippets}{setHeader}       = "$courseDirs{templates}/ASimpleScreenHeaderFile.pg"; # An alternate default header file

# A PG template for creation of new problems.
$webworkFiles{screenSnippets}{blankProblem}    = "$webworkDirs{conf}/snippets/blankProblem2.pg"; # screenSetHeader.pg"

# A site info  "message of the day" file
$webworkFiles{site_info}                       = "$webworkDirs{htdocs}/site_info.txt";

################################################################################
# Course-specific files
################################################################################

# The course configuration file.
$courseFiles{environment} = "$courseDirs{root}/course.conf";

# The course simple configuration file (holds web-based configuratoin).
$courseFiles{simpleConfig} = "$courseDirs{root}/simple.conf";

# File contents are displayed after login, on the problem sets page. Path given
# here is relative to the templates directory.
$courseFiles{course_info} = "course_info.txt";

# File contents are displayed on the login page. Path given here is relative to
# the templates directory.
$courseFiles{login_info}  = "login_info.txt";

# Additional library buttons can be added to the Library Browser (SetMaker.pm)
# by adding the libraries you want to the following line.  For each key=>value
# in the list, if a directory (or link to a directory) with name 'key' appears
# in the templates directory, then a button with name 'value' will be placed at
# the top of the problem browser.  (No button will appear if there is no
# directory or link with the given name in the templates directory.)  For
# example,
# 
#     $courseFiles{problibs} = {rochester => "Rochester", asu => "ASU"};
# 
# would add two buttons, one for the Rochester library and one for the ASU
# library, provided templates/rochester and templates/asu exists either as 
# subdirectories or links to other directories. The "NPL Directory" button
# activated below gives access to all the directories in the National 
# Problem Library.
# 
$courseFiles{problibs}    = {
	Library          => "NPL Directory",
# 	rochesterLibrary => "Rochester",
# 	unionLibrary     =>"Union",
# 	asuLibrary       => "Arizona State",
# 	dcdsLibrary      => "Detroit CDS",
# 	dartmouthLibrary => "Dartmouth",
# 	indianaLibrary   => "Indiana",
# 	osuLibrary       => "Ohio State",	
#   capaLibrary      => "CAPA",
};

################################################################################
# Status system
################################################################################

# This is the default status given to new students and students with invalid
# or missing statuses.
$default_status = "Enrolled";

# The first abbreviation in the abbreviations list is the canonical
# abbreviation, and will be used when setting the status value in a user record
# or an exported classlist file.
# 
# Results are undefined if more than one status has the same abbreviation.
# 
# The four behaviors that are controlled by status are:
#   allow_course_access   => is this user allowed to log in?
#   include_in_assignment => is this user included when assigning as set to "all" users?
#   include_in_stats      => is this user included in statistical reports?
#   include_in_email      => is this user included in emails sent to the class?
#   include_in_scoring    => is this user included in score reports?

%statuses = (
	Enrolled => {
		abbrevs => [qw/ C c current enrolled /],
		behaviors => [qw/ allow_course_access include_in_assignment include_in_stats include_in_email include_in_scoring /],
	},
	Audit => {
		abbrevs => [qw/ A a audit /],
		behaviors => [qw/ allow_course_access include_in_assignment include_in_stats include_in_email /],
	},
	Drop => {
		abbrevs => [qw/ D d drop withdraw /],
		behaviors => [qw/  /],
	},
	Proctor => { 
		abbrevs => [qw/ P p proctor /],
		behaviors => [qw/  /],
	},
);

################################################################################
# Database options
################################################################################

# these variables are used by database.conf. we define them here so that editing
# database.conf isn't necessary.

# required permissions
# GRANT SELECT ON webwork.* TO webworkRead@localhost IDENTIFIED BY 'passwordRO';
# GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, ALTER, DROP, INDEX, LOCK TABLES ON webwork.* TO webworkWrite@localhost IDENTIFIED BY 'passwordRW';

$database_dsn = "dbi:mysql:webwork";
$database_username = "webworkWrite";
$database_password = "";
$database_debug = 0;

# Variables for sql_moodle database layout.
$moodle_dsn = "dbi:mysql:moodle";
$moodle_username = $database_username;
$moodle_password = $database_password;
$moodle_table_prefix = "mdl_";
$moodle17 = 0;

# Several database are defined in the file conf/database.conf and stored in the
# hash %dbLayouts.
include "conf/database.conf";

# Select the default database layout. This can be overridden in the course.conf
# file of a particular course. The only database layout supported in WW 2.1.4
# and up is "sql_single".
$dbLayoutName = "sql_single";

# This sets the symbol "dbLayout" as an alias for the selected database layout.
*dbLayout     = $dbLayouts{$dbLayoutName};

################################################################################
# Problem library options
################################################################################

# For configuration instructions, see:
# http://webwork.maa.org/wiki/National_Problem_Library
# The directory containing the natinal problem library files. Set to "" if no problem
# library is installed.
$problemLibrary{root}        = "";

# Problem Library version
# Version 1 is in use.  Version 2 will be released soon.
$problemLibrary{version} = "2";

# Problem Library SQL database connection information
$problemLibrary_db = {
        dbsource => $database_dsn,
        user     => $database_username,
        passwd   => $database_password,
};

################################################################################
# Logs
################################################################################

# FIXME: take logs out of %webworkFiles/%courseFiles and give them their own
# top-level hash.

# Logs data about how long it takes to process problems. (Do not confuse this
# with the /other/ timing log which can be set by WeBWorK::Timing and is used
# for benchmarking system performance in general. At some point, this timing
# mechanism will be deprecated in favor of the WeBWorK::Timing mechanism.)
$webworkFiles{logs}{timing}         = "$webworkDirs{logs}/timing.log";

# Logs courses created via the web-based Course Administration module.
$webworkFiles{logs}{hosted_courses} = "$webworkDirs{logs}/hosted_courses.log";

# The transaction log contains data from each recorded answer submission. This
# is useful if the database becomes corrupted.
$webworkFiles{logs}{transaction}    = "$webworkDirs{logs}/${courseName}_transaction.log";

# The answer log stores a history of all users' submitted answers.
$courseFiles{logs}{answer_log}      = "$courseDirs{logs}/answer_log";

# Log logins.
$courseFiles{logs}{login_log}       = "$courseDirs{logs}/login.log";

# Log for almost every click.  By default it is the empty string, which
# turns this log off.  If you want it turned on, we suggest
#                "$courseDirs{logs}/activity.log"
# When turned on, this log can get quite large.
$courseFiles{logs}{activity_log} = '';

################################################################################
# Site defaults (FIXME: what other things could be "site defaults"?)
################################################################################

# Set the default timezone of courses on this server. To get a list of valid
# timezones, run:
# 
#     perl -MDateTime::TimeZone -e 'print join "\n", DateTime::TimeZone::all_names'
# 
# To get a list of valid timezone "links" (deprecated names), run:
# 
#     perl -MDateTime::TimeZone -e 'print join "\n", DateTime::TimeZone::links'
# 
# If left blank, the system timezone will be used. This is usually what you
# want. You might want to set this if your server is NOT in the same timezone as
# your school. If just a few courses are in a different timezone, set this in
# course.conf for the affected courses instead.
# 
$siteDefaults{timezone} = "America/New_York";

# The default_templates_course is used by default to create a new course.
# The contents of the templates directory are copied from this course
# to the new course being created.
$siteDefaults{default_templates_course} ="modelCourse";

################################################################################
# Authentication system
################################################################################

# FIXME This mechanism is a little awkward and probably should be merged with
# the dblayout selection system somehow.

# Select the authentication module to use for normal logins.
# 
# If this value is a string, the given authentication module will be used
# regardless of the database layout. If it is a hash, the database layout name
# will be looked up in the hash and the resulting value will be used as the
# authentication module. The special hash key "*" is used if no entry for the
# current database layout is found.
# 
$authen{user_module} = {
	sql_moodle => "WeBWorK::Authen::Moodle",
	# sql_ldap   => "WeBWorK::Authen::LDAP",
	"*" => "WeBWorK::Authen",
};

# Select the authentication module to use for proctor logins.
# 
# A string or a hash is accepted, as above.
# 
$authen{proctor_module} = "WeBWorK::Authen::Proctor";

# Options for particular authentication modules

# $authen{moodle_options} = {
# 	dsn => $moodle_dsn,
# 	username => $moodle_username,
# 	password => $moodle_password,
# 	table_prefix => $moodle_table_prefix,
# 	moodle17 => $moodle17,
# };

$authen{ldap_options} = {
	# hosts to attempt to connect to, in order. For example:
	#   auth.myschool.edu             -- uses LDAP scheme and port 389
	#   ldap://auth.myschool.edu:666  -- non-standard port
	#   ldaps://auth.myschool.edu     -- uses LDAPS scheme and port 636
	#   ldaps://auth.myschool.edu:389 -- SSL on non-SSL port
	#   Edit the host(s) below:
	net_ldap_hosts => [
		"ldaps://auth1.myschool.edu",
		"ldaps://auth2.myschool.edu",
	],
	# connection options
	net_ldap_options => {
		timeout => 30,
		version => 3,
	},
	# base to use when searching for user's DN
	# Edit the data below:
	net_ldap_base => "ou=people,dc=myschool,dc=edu",
	
        # Use a Bind account if set to 1
        bindAccount => 0,

        searchDN => "cn=search,DC=youredu,DC=edu",
        bindPassword =>  "password",

	# The LDAP module searches for a DN whose RDN matches the username
	# entered by the user. The net_ldap_rdn setting tells the LDAP
	# backend what part of your LDAP schema you want to use as the RDN.
	# The correct value for net_ldap_rdn will depend on your LDAP setup.
	# 
	# Uncomment this line if you use Active Directory.
	#net_ldap_rdn => "sAMAccountName",
	#
	# Uncomment this line if your schema uses uid as an RDN.
	#net_ldap_rdn => "uid",
	#
	# By default, net_ldap_rdn is set to "sAMAccountName".

	# If failover = "all", then all LDAP failures will be checked
	# against the WeBWorK database. If failover = "local", then only
	# users who don't exist in LDAP will be checked against the WeBWorK
	# database. If failover = 0, then no attempts will be checked
	# against the WeBWorK database. failover = 1 is equivalent to
	# failover = "all".
	failover => "all",
};

################################################################################
# Authorization system
################################################################################

# this section lets you define which groups of users can perform which actions.

# this hash maps a numeric permission level to the name of a role. the number
# assigned to a role is significant -- roles with higher numbers are considered
# "more privileged", and are included when that role is listed for a privilege
# below.
# 
%userRoles = (
	guest => -5,
	student => 0,
	login_proctor => 2,
	grade_proctor => 3,
	ta => 5,
	professor => 10,
);

# this hash maps operations to the roles that are allowed to perform those
# operations. the role listed and any role with a higher permission level (in
# the %userRoles hash) will be allowed to perform the operation. If the role
# is undefined, no users will be allowed to perform the operation.
# 
%permissionLevels = (
	login                          => "guest",
	report_bugs                    => "ta",
	submit_feedback                => "student",
	change_password                => "student",
	change_email_address           => "student",
	
	proctor_quiz_login             => "login_proctor",
	proctor_quiz_grade             => "grade_proctor",
	view_proctored_tests           => "student",
	view_hidden_work               => "ta",
	
	view_multiple_sets             => "ta",
	view_unopened_sets             => "ta",
	view_hidden_sets               => "ta",
	view_answers                   => "ta",
	view_ip_restricted_sets        => "ta",
	
	become_student                 => "professor",
	access_instructor_tools        => "ta",
	score_sets                     => "professor",
	send_mail                      => "professor",
	receive_feedback               => "ta",
	
	create_and_delete_problem_sets => "professor",
	assign_problem_sets            => "professor",
	modify_problem_sets            => "professor",
	modify_student_data            => "professor",
	modify_classlist_files         => "professor",
	modify_set_def_files           => "professor",
	modify_scoring_files           => "professor",
	modify_problem_template_files  => "professor",
	manage_course_files            => "professor",
	
	create_and_delete_courses      => "professor",
	fix_course_databases           => "professor",
	
	##### Behavior of the interactive problem processor #####
	
	show_correct_answers_before_answer_date         => "ta",
	show_solutions_before_answer_date               => "ta",
	avoid_recording_answers                         => "ta",
	# Below this level, old answers are never initially shown
	can_show_old_answers_by_default                 => "student",
	# at this level, we look at showOldAnswers for default value
	# even after the due date
	can_always_use_show_old_answers_default         => "professor",
	check_answers_before_open_date                  => "ta",
	check_answers_after_open_date_with_attempts     => "ta",
	check_answers_after_open_date_without_attempts  => "guest",
	check_answers_after_due_date                    => "guest",
	check_answers_after_answer_date                 => "guest",
	create_new_set_version_when_acting_as_student   => undef,
	print_path_to_problem                           => "professor", # see "Special" PG environment variables
	record_set_version_answers_when_acting_as_student => undef,
	record_answers_when_acting_as_student           => undef,
	# "record_answers_when_acting_as_student" takes precedence
	# over the following for professors acting as students:
	record_answers_before_open_date                 => undef,
	record_answers_after_open_date_with_attempts    => "student",
	record_answers_after_open_date_without_attempts => undef,
	record_answers_after_due_date                   => undef,
	record_answers_after_answer_date                => undef,
	dont_log_past_answers                           => "professor",
	# does the user get to see a dump of the problem?
	view_problem_debugging_info                     => "ta",
	
	##### Behavior of the Hardcopy Processor #####
	
	download_hardcopy_multiuser  => "ta",
	download_hardcopy_multiset   => "ta",
	download_hardcopy_view_errors =>"professor",
	download_hardcopy_format_pdf => "guest",
	download_hardcopy_format_tex => "ta",
);

# This is the default permission level given to new students and students with
# invalid or missing permission levels.
$default_permission_level = $userRoles{student};

################################################################################
# Session options
################################################################################

# $sessionKeyTimeout defines seconds of inactivity before a key expires
$sessionKeyTimeout = 60*30;

# $sessionKeyLength defines the length (in characters) of the session key
$sessionKeyLength = 32;

# @sessionKeyChars lists the legal session key characters
@sessionKeyChars = ('A'..'Z', 'a'..'z', '0'..'9');

# Practice users are users who's names start with $practiceUser
# (you can comment this out to remove practice user support)
$practiceUserPrefix = "practice";

# There is a practice user who can be logged in multiple times.  He's
# commented out by default, though, so you don't hurt yourself.  It is
# kindof a backdoor to the practice user system, since he doesn't have a
# password.  Come to think of it, why do we even have this?!
#$debugPracticeUser = "practice666";

# Option for gateway tests; $gatewayGracePeriod is the time in seconds
# after the official due date during which we'll still grade the test
$gatewayGracePeriod = 120;

################################################################################
# PG subsystem options
################################################################################

# List of enabled display modes. Comment out any modes you don't wish to make
# available for use.
$pg{displayModes} = [
#	"plainText",     # display raw TeX for math expressions
#	"formattedText", # format math expressions using TtH
	"images",        # display math expressions as images generated by dvipng
	"jsMath",        # render TeX math expressions on the client side using jsMath
#	"MathJax",       # render TeX math expressions on the client side using MathJax --- we strongly recommend people install and use MathJax
#	"asciimath",     # render TeX math expressions on the client side using ASCIIMathML
#	"LaTeXMathML",   # render TeX math expressions on the client side using LaTeXMathML
];

#### Default settings for the PG translator

# Default display mode. Should be listed above (uncomment only one).
$pg{options}{displayMode}        = "images";
#$pg{options}{displayMode}        = "jsMath";
#$pg{options}{displayMode}        = "MathJax";

# The default grader to use, if a problem doesn't specify.
$pg{options}{grader}             = "avg_problem_grader";

# Fill in answer blanks with the student's last answer by default?
$pg{options}{showOldAnswers}     = 1;

# Show correct answers (when allowed) by default?
$pg{options}{showCorrectAnswers} = 0;

# Show hints (when allowed) by default?
$pg{options}{showHints}          = 0;

# Show solutions (when allowed) by default?
$pg{options}{showSolutions}      = 0;

# Display the "Entered" column which automatically shows the evaluated student answer, e.g. 1 if student input is sin(pi/2).
# If this is set to 0, e.g. to save space in the response area, the student can still see their evaluated answer by hovering
# the mouse pointer over the typeset version of their answer
$pg{options}{showEvaluatedAnswers}      = 1;

# Catch translation warnings internally by default? (We no longer need to do
# this, since there is a global warnings handler. So this should be off.)
$pg{options}{catchWarnings}      = 0;

# decorations for correct input blanks -- apparently you can't define and name attribute collections in a .css file
$pg{options}{correct_answer} = "{border-width:2;border-style:solid;border-color:#8F8}"; #matches resultsWithOutError class in math2.css

# decorations for incorrect input blanks
$pg{options}{incorrect_answer} = "{border-width:2;border-style:solid;border-color:#F55}"; #matches resultsWithError class in math2.css

##### Currently-selected renderer

# Only the local renderer is supported in this version.
$pg{renderer} = "WeBWorK::PG::Local";

# The remote renderer connects to an XML-RPC PG rendering server.
#$pg{renderer} = "WeBWorK::PG::Remote";

##### Renderer-dependent options

# The remote renderer has one option:
$pg{renderers}{"WeBWorK::PG::Remote"} = {
	# The "proxy" server to connect to for remote rendering.
	proxy => "http://localhost:21000/RenderD",
};

##### Settings for various display modes

# "images" mode has several settings:
$pg{displayModeOptions}{images} = {
	# Determines the method used to align images in output. Can be
	# "baseline", "absmiddle", or "mysql".
	dvipng_align => 'mysql', 

	# If mysql is chosen, this information indicates which database contains the
	# 'depths' table. Since 2.3.0, the depths table is kept in the main webwork
	# database. (If you are upgrading from an earlier version of webwork, and
	# used the mysql method in the past, you should move your existing 'depths'
	# table to the main database.)
	dvipng_depth_db => {
		dbsource => $database_dsn,
		user     => $database_username,
		passwd   => $database_password,
	},
};

$pg{displayModeOptions}{jsMath} = {
	reportMissingFonts => 0,       # set to 1 to allow the missing font message
	missingFontMessage => undef,   # set to an HTML string to replace the missing font message
	noImageFonts => 0,             # set to 1 if you didn't install the jsMath image fonts
	processDoubleClicks => 1,      # set to 0 to disable double-click on math to get TeX source
};

##### Directories used by PG

# The root of the PG directory tree (from pg_root in Apache config).
$pg{directories}{root}   = "$pg_dir";
$pg{directories}{lib}    = "$pg{directories}{root}/lib";
$pg{directories}{macros} = "$pg{directories}{root}/macros";

#
#  The macro file search path.  Each directory in this list is seached
#  (in this order) by loadMacros() when it looks for a .pl file.
#
$pg{directories}{macrosPath} = [
   ".",                     # search the problem file's directory
   $courseDirs{macros},
   $pg{directories}{macros},
   "$courseDirs{templates}/Library/macros/Union",
   "$courseDirs{templates}/Library/macros/Michigan",
   "$courseDirs{templates}/Library/macros/CollegeOfIdaho",
   "$courseDirs{templates}/Library/macros/FortLewis",
   "$courseDirs{templates}/Library/macros/TCNJ",
   "$courseDirs{templates}/Library/macros/NAU",
   "$courseDirs{templates}/Library/macros/Dartmouth",
   "$courseDirs{templates}/Library/macros/WHFreeman",
];

# The applet search path. If a full URL is given, it is used unmodified. If an
# absolute path is given, the URL of the local server is prepended to it.
# 
# For example, if an item is "/math/applets",
# and the local server is  "https://math.yourschool.edu",
# then the URL "https://math.yourschool.edu/math/applets" will be used.
# 

$pg{directories}{appletPath} = [    # paths to search for applets (requires full url)
	"$webworkURLs{htdocs}/applets",
	"$webworkURLs{htdocs}/applets/geogebra_stable",
	"$courseURLs{html}/applets",  
	"$webworkURLs{htdocs}/applets/Xgraph",
	"$webworkURLs{htdocs}/applets/PointGraph",
	"$webworkURLs{htdocs}/applets/Xgraph",
	"$webworkURLs{htdocs}/applets/liveJar",
	"$webworkURLs{htdocs}/applets/Image_and_Cursor_All",
	
];

##### "Special" PG environment variables. (Stuff that doesn't fit in anywhere else.)

# Users for whom to print the file name of the PG file being processed.
$pg{specialPGEnvironmentVars}{PRINT_FILE_NAMES_FOR} = [ "professor", ];  
   # ie file paths are printed for 'gage'
$pg{specialPGEnvironmentVars}{PRINT_FILE_NAMES_PERMISSION_LEVEL} = $userRoles{ $permissionLevels{print_path_to_problem} }; 
   # (file paths are also printed for anyone with this permission or higher)

# Locations of CAPA resources. (Only necessary if you need to use converted CAPA
# problems.)
$pg{specialPGEnvironmentVars}{CAPA_Tools}             = "/opt/webwork/libraries/CAPA/CAPA_Tools/",
$pg{specialPGEnvironmentVars}{CAPA_MCTools}           = "/opt/webwork/libraries/CAPA/CAPA_MCTools/",
$pg{specialPGEnvironmentVars}{CAPA_GraphicsDirectory} = "$webworkDirs{htdocs}/CAPA_Graphics/",
$pg{specialPGEnvironmentVars}{CAPA_Graphics_URL}      = "$webworkURLs{htdocs}/CAPA_Graphics/",

# Size in pixels of dynamically-generated images, i.e. graphs.
$pg{specialPGEnvironmentVars}{onTheFlyImageSize}      = 400,
 
# To disable the Parser-based versions of num_cmp and fun_cmp, and use the
# original versions instead, set this value to 1.
$pg{specialPGEnvironmentVars}{useOldAnswerMacros} = 0;

# Strings to insert at the start and end of the body of a problem
#  (at beginproblem() and ENDDOCUMENT) in various modes.  More display modes
#  can be added if different behaviours are desired (e.g., HTML_dpng,
#  HTML_asciimath, etc.).  These parts are not used in the Library browser.

$pg{specialPGEnvironmentVars}{problemPreamble} = { TeX => '', HTML=> '' };
$pg{specialPGEnvironmentVars}{problemPostamble} = { TeX => '', HTML=>'' };

# To have the problem body indented and boxed, uncomment:

 $pg{specialPGEnvironmentVars}{problemPreamble}{HTML} = '<BLOCKQUOTE>
     <TABLE BORDER=1 CELLSPACING=1 CELLPADDING=15 BGCOLOR=#E8E8E8><TR><TD>'; 
 $pg{specialPGEnvironmentVars}{problemPostamble}{HTML} = '</TD></TR></TABLE>
     </BLOCKQUOTE>';

##### PG modules to load

# The first item of each list is the module to load. The remaining items are
# additional packages to import.

${pg}{modules} = [
	[qw(DynaLoader)],
	[qw(Exporter)],
	[qw(GD)],
	
	[qw(AlgParser AlgParserWithImplicitExpand Expr ExprWithImplicitExpand utf8)],
	[qw(AnswerHash AnswerEvaluator)],
	[qw(WWPlot)], # required by Circle (and others)
	[qw(Circle)],
	[qw(Complex)],
	[qw(Complex1)],
	[qw(Distributions)],
	[qw(Fraction)],
	[qw(Fun)],
	[qw(Hermite)],
	[qw(Inequalities::common)],
	[qw(Label)],
	[qw(LimitedPolynomial)],
	[qw(ChoiceList)],
	[qw(Match)],
	[qw(MatrixReal1)], # required by Matrix
	[qw(Matrix)],
	[qw(Multiple)],
	[qw(PGrandom)],
	[qw(Regression)],
	[qw(Select)],
	[qw(Units)],
	[qw(VectorField)],
	[qw(Parser Value)],
	[qw(Parser::Legacy)],
#	[qw(SaveFile)],
#   [qw(Chromatic)], # for Northern Arizona graph problems 
#                    #  -- follow instructions at libraries/nau_problib/lib/README to install
    [qw(Applet FlashApplet JavaApplet CanvasApplet)],
	[qw(PGcore PGalias PGresource PGloadfiles PGanswergroup PGresponsegroup  Tie::IxHash)],
];

##### Problem creation defaults

# The default weight (also called value) of a problem to use when using the 
# Library Browser, Problem Editor or Hmwk Sets Editor to add problems to a set
# or when this value is left blank in an imported set definition file.
$problemDefaults{value} = 1;  

# The default max_attempts for a problem to use when using the 
# Library Browser, Problem Editor or Hmwk Sets Editor to add problems to a set
# or when this value is left blank in an imported set definition file.  Note that 
# setting this to -1 gives students unlimited attempts.
$problemDefaults{max_attempts} = -1;   

##### Answer evaluatior defaults

$pg{ansEvalDefaults} = {
	functAbsTolDefault            => .001,
	functLLimitDefault            => .0000001,
	functMaxConstantOfIntegration => 1E8,
	functNumOfPoints              => 3,
	functRelPercentTolDefault     => .1,
	functULimitDefault            => .9999999,
	functVarDefault               => "x",
	functZeroLevelDefault         => 1E-14,
	functZeroLevelTolDefault      => 1E-12,
	numAbsTolDefault              => .001,
	numFormatDefault              => "",
	numRelPercentTolDefault       => .1,
	numZeroLevelDefault           => 1E-14,
	numZeroLevelTolDefault        => 1E-12,
	useBaseTenLog                 => 0,
	defaultDisplayMatrixStyle     => "[s]",  # left delimiter, middle line delimiters, right delimiter
	reducedScoringPeriod          => 0,	# Length of Reduced Credit Period (formally Reduced Scoring Period) in minutes
	reducedScoringValue			  => 1,	# A number in [0,1]. Students will be informed of the value as a percentage
};

################################################################################
# Compatibility
################################################################################

# Define the old names for the various "root" variables.
$webworkRoot    = $webworkDirs{root};
$webworkURLRoot = $webworkURLs{root};
$pgRoot         = $pg{directories}{root};