--- loncom/LONCAPA.pm 2006/12/09 23:34:42 1.20 +++ loncom/LONCAPA.pm 2008/11/20 15:19:33 1.27 @@ -1,7 +1,7 @@ # The LearningOnline Network # Base routines # -# $Id: LONCAPA.pm,v 1.20 2006/12/09 23:34:42 albertel Exp $ +# $Id: LONCAPA.pm,v 1.27 2008/11/20 15:19:33 jms Exp $ # # Copyright Michigan State University Board of Trustees # @@ -27,6 +27,8 @@ # ### + + package LONCAPA; use strict; @@ -43,6 +45,7 @@ use vars qw($match_domain $match_not_d $match_username $match_not_username $match_courseid $match_not_courseid $match_name + $match_lonid $match_handle $match_not_handle); require Exporter; @@ -54,21 +57,30 @@ our @EXPORT_OK = qw($match_domain $mat $match_username $match_not_username $match_courseid $match_not_courseid $match_name + $match_lonid $match_handle $match_not_handle); our %EXPORT_TAGS = ( 'match' =>[qw($match_domain $match_not_domain $match_username $match_not_username $match_courseid $match_not_courseid $match_name + $match_lonid $match_handle $match_not_handle)],); my %perlvar; +=pod + +=head2 NOTE: + +add_get_param() + +Inputs are a url, and a hash ref of +form name => value pairs +takes care of properly adding the form name elements and values to the +the url doing proper escaping of the values and joining with ? or & as +needed -# Inputs are a url, and a hash ref of -# form name => value pairs -# takes care of properly adding the form name elements and values to the -# the url doing proper escaping of the values and joining with ? or & as -# needed +=cut sub add_get_param { my ($url,$form_data) = @_; @@ -110,11 +122,11 @@ sub clean_domain { return $domain; } -$match_username = $LONCAPA::username_re = qr{[\w\-.]+}; -$match_not_username = $LONCAPA::not_username_re = qr{[^\w\-.]+}; +$match_username = $LONCAPA::username_re = qr{\w[\w\-.@]+}; +$match_not_username = $LONCAPA::not_username_re = qr{[^\w\-.@]+}; sub clean_username { my ($username) = @_; - $username =~ s/^\d+//; + $username =~ s/^\W+//; $username =~ s/$match_not_username//g; return $username; } @@ -122,14 +134,22 @@ sub clean_username { $match_courseid = $LONCAPA::courseid_re = qr{\d[\w\-.]+}; $match_not_courseid = $LONCAPA::not_courseid_re = qr{[^\w\-.]+}; +sub clean_courseid { + my ($courseid) = @_; + $courseid =~ s/^\D+//; + $courseid =~ s/$match_not_courseid//g; + return $courseid; +} -$match_name = $LONCAPA::name = qr{$match_username|$match_courseid}; +$match_name = $LONCAPA::name_re = qr{$match_username|$match_courseid}; sub clean_name { my ($name) = @_; $name =~ s/$match_not_username//g; return $name; } +$match_lonid = $LONCAPA::lonid_re = qr{[\w\-.]+}; + sub split_courseid { my ($courseid) = @_; my ($domain,$coursenum) = @@ -137,8 +157,8 @@ sub split_courseid { return ($domain,$coursenum); } -$match_handle = $LONCAPA::handle_re = qr{[\w\-.]+}; -$match_not_handle = $LONCAPA::not_handle_re = qr{[^\w\-.]+}; +$match_handle = $LONCAPA::handle_re = qr{[\w\-.@]+}; +$match_not_handle = $LONCAPA::not_handle_re = qr{[^\w\-.@]+}; sub clean_handle { my ($handle) = @_; $handle =~ s/$match_not_handle//g; @@ -158,27 +178,6 @@ sub propath { } -#--------------------------------------------------------------- -# -# Manipulation of hash based databases (factoring out common code -# for later use as we refactor. -# -# Ties a domain level resource file to a hash. -# If requested a history entry is created in the associated hist file. -# -# Parameters: -# domain - Name of the domain in which the resource file lives. -# namespace - Name of the hash within that domain. -# how - How to tie the hash (e.g. GDBM_WRCREAT()). -# loghead - Optional parameter, if present a log entry is created -# in the associated history file and this is the first part -# of that entry. -# logtail - Goes along with loghead, The actual logentry is of the -# form $loghead::logtail. -# Returns: -# Reference to a hash bound to the db file or alternatively undef -# if the tie failed. -# sub tie_domain_hash { my ($domain,$namespace,$how,$loghead,$logtail) = @_; @@ -197,25 +196,8 @@ sub tie_domain_hash { sub untie_domain_hash { return &_locking_hash_untie(@_); } -# -# Ties a user's resource file to a hash. -# If necessary, an appropriate history -# log file entry is made as well. -# This sub factors out common code from the subs that manipulate -# the various gdbm files that keep keyword value pairs. -# Parameters: -# domain - Name of the domain the user is in. -# user - Name of the 'current user'. -# namespace - Namespace representing the file to tie. -# how - What the tie is done to (e.g. GDBM_WRCREAT(). -# loghead - Optional first part of log entry if there may be a -# history file. -# what - Optional tail of log entry if there may be a history -# file. -# Returns: -# hash to which the database is tied. It's up to the caller to untie. -# undef if the has could not be tied. -# + + sub tie_user_hash { my ($domain,$user,$namespace,$how,$loghead,$what) = @_; @@ -230,8 +212,6 @@ sub untie_user_hash { return &_locking_hash_untie(@_); } -# routines if you just have a filename -# return tied hashref or undef sub locking_hash_tie { my ($filename,$how)=@_; @@ -405,10 +385,11 @@ BEGIN { __END__ -=pod =head1 NAME +Apache::LONCAPA + LONCAPA - Basic routines =head1 SYNOPSIS @@ -417,19 +398,18 @@ Generally useful routines =head1 EXPORTED SUBROUTINES -=over 4 - -=item * +=over -escape() : unpack non-word characters into CGI-compatible hex codes +=item escape() -=item * +unpack non-word characters into CGI-compatible hex codes -unescape() : pack CGI-compatible hex codes into actual non-word ASCII character +=item unescape() -=item * + pack CGI-compatible hex codes into actual non-word ASCII character -add_get_param() : +=item add_get_param() + Inputs: url (with or without exit GET from parameters), hash ref of form name => value pairs @@ -437,4 +417,68 @@ add_get_param() : the url doing proper escaping of the values and joining with ? or & as needed +=item clean_handle() + +=item propath() + +=item untie_domain_hash() + +=item tie_domain_hash() + +Manipulation of hash based databases (factoring out common code +for later use as we refactor. + + Ties a domain level resource file to a hash. + If requested a history entry is created in the associated hist file. + + Parameters: + domain - Name of the domain in which the resource file lives. + namespace - Name of the hash within that domain. + how - How to tie the hash (e.g. GDBM_WRCREAT()). + loghead - Optional parameter, if present a log entry is created + in the associated history file and this is the first part + of that entry. + logtail - Goes along with loghead, The actual logentry is of the + form $loghead::logtail. +Returns: + Reference to a hash bound to the db file or alternatively undef + if the tie failed. + +=item tie_user_hash() + + Ties a user's resource file to a hash. + If necessary, an appropriate history + log file entry is made as well. + This sub factors out common code from the subs that manipulate + the various gdbm files that keep keyword value pairs. +Parameters: + domain - Name of the domain the user is in. + user - Name of the 'current user'. + namespace - Namespace representing the file to tie. + how - What the tie is done to (e.g. GDBM_WRCREAT(). + loghead - Optional first part of log entry if there may be a + history file. + what - Optional tail of log entry if there may be a history + file. +Returns: + hash to which the database is tied. It's up to the caller to untie. + undef if the has could not be tied. + +=item locking_hash_tie() + +routines if you just have a filename return tied hashref or undef + +=item locking_hash_untie() + +=item db_filename_parts() + +=head1 INTERNAL SUBROUTINES + +=item _do_hash_tie() + +=item _do_hash_untie() + =back + +=cut +