Fridolin Somers
7b645b0208
Looks like most of existing code wants comma as default value. Also impact installer/data/mysql/mandatory/sysprefs.sql. Signed-off-by: David Nind <david@davidnind.com> Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com> Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
1048 lines
27 KiB
Perl
1048 lines
27 KiB
Perl
package C4::Context;
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# Copyright 2002 Katipo Communications
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# Koha is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Koha; if not, see <http://www.gnu.org/licenses>.
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use Modern::Perl;
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use vars qw($AUTOLOAD $context @context_stack);
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BEGIN {
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if ( $ENV{'HTTP_USER_AGENT'} ) { # Only hit when plack is not enabled
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# Redefine multi_param if cgi version is < 4.08
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# Remove the "CGI::param called in list context" warning in this case
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require CGI; # Can't check version without the require.
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if ( !defined($CGI::VERSION) || $CGI::VERSION < 4.08 ) {
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no warnings 'redefine';
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*CGI::multi_param = \&CGI::param;
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use warnings 'redefine';
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$CGI::LIST_CONTEXT_WARN = 0;
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}
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}
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};
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use Carp qw( carp );
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use DateTime::TimeZone;
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use Encode;
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use File::Spec;
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use POSIX;
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use YAML::XS;
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use ZOOM;
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use List::MoreUtils qw(any);
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use Koha::Caches;
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use Koha::Config::SysPref;
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use Koha::Config::SysPrefs;
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use Koha::Config;
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use Koha;
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=head1 NAME
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C4::Context - Maintain and manipulate the context of a Koha script
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=head1 SYNOPSIS
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use C4::Context;
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use C4::Context("/path/to/koha-conf.xml");
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$config_value = C4::Context->config("config_variable");
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$koha_preference = C4::Context->preference("preference");
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$db_handle = C4::Context->dbh;
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$Zconn = C4::Context->Zconn;
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=head1 DESCRIPTION
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When a Koha script runs, it makes use of a certain number of things:
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configuration settings in F</etc/koha/koha-conf.xml>, a connection to the Koha
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databases, and so forth. These things make up the I<context> in which
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the script runs.
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This module takes care of setting up the context for a script:
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figuring out which configuration file to load, and loading it, opening
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a connection to the right database, and so forth.
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Most scripts will only use one context. They can simply have
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use C4::Context;
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at the top.
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Other scripts may need to use several contexts. For instance, if a
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library has two databases, one for a certain collection, and the other
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for everything else, it might be necessary for a script to use two
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different contexts to search both databases. Such scripts should use
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the C<&set_context> and C<&restore_context> functions, below.
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By default, C4::Context reads the configuration from
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F</etc/koha/koha-conf.xml>. This may be overridden by setting the C<$KOHA_CONF>
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environment variable to the pathname of a configuration file to use.
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=head1 METHODS
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=cut
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#'
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# In addition to what is said in the POD above, a Context object is a
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# reference-to-hash with the following fields:
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#
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# config
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# A reference-to-hash whose keys and values are the
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# configuration variables and values specified in the config
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# file (/etc/koha/koha-conf.xml).
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# dbh
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# A handle to the appropriate database for this context.
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# dbh_stack
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# Used by &set_dbh and &restore_dbh to hold other database
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# handles for this context.
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# Zconn
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# A connection object for the Zebra server
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$context = undef; # Initially, no context is set
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@context_stack = (); # Initially, no saved contexts
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sub import {
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# Create the default context ($C4::Context::Context)
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# the first time the module is called
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# (a config file can be optionaly passed)
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# default context already exists?
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return if $context;
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# no ? so load it!
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my ($pkg,$config_file) = @_ ;
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my $new_ctx = __PACKAGE__->new($config_file);
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return unless $new_ctx;
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# if successfully loaded, use it by default
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$new_ctx->set_context;
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1;
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}
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=head2 new
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$context = C4::Context->new;
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$context = C4::Context->new("/path/to/koha-conf.xml");
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Allocates a new context. Initializes the context from the specified
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file, which defaults to either the file given by the C<$KOHA_CONF>
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environment variable, or F</etc/koha/koha-conf.xml>.
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It saves the koha-conf.xml values in the declared memcached server(s)
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if currently available and uses those values until them expire and
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re-reads them.
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C<&new> does not set this context as the new default context; for
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that, use C<&set_context>.
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=cut
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#'
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# Revision History:
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# 2004-08-10 A. Tarallo: Added check if the conf file is not empty
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sub new {
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my $class = shift;
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my $conf_fname = shift; # Config file to load
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# check that the specified config file exists and is not empty
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undef $conf_fname unless
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(defined $conf_fname && -s $conf_fname);
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# Figure out a good config file to load if none was specified.
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unless ( defined $conf_fname ) {
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$conf_fname = Koha::Config->guess_koha_conf;
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unless ( $conf_fname ) {
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warn "unable to locate Koha configuration file koha-conf.xml";
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return;
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}
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}
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my $self = {};
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$self->{config} = Koha::Config->get_instance($conf_fname);
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unless ( defined $self->{config} ) {
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warn "The config file ($conf_fname) has not been parsed correctly";
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return;
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}
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$self->{"Zconn"} = undef; # Zebra Connections
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$self->{"userenv"} = undef; # User env
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$self->{"activeuser"} = undef; # current active user
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$self->{"shelves"} = undef;
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$self->{tz} = undef; # local timezone object
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bless $self, $class;
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return $self;
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}
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=head2 set_context
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$context = new C4::Context;
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$context->set_context();
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or
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set_context C4::Context $context;
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...
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restore_context C4::Context;
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In some cases, it might be necessary for a script to use multiple
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contexts. C<&set_context> saves the current context on a stack, then
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sets the context to C<$context>, which will be used in future
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operations. To restore the previous context, use C<&restore_context>.
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=cut
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#'
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sub set_context
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{
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my $self = shift;
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my $new_context; # The context to set
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# Figure out whether this is a class or instance method call.
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#
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# We're going to make the assumption that control got here
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# through valid means, i.e., that the caller used an instance
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# or class method call, and that control got here through the
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# usual inheritance mechanisms. The caller can, of course,
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# break this assumption by playing silly buggers, but that's
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# harder to do than doing it properly, and harder to check
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# for.
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if (ref($self) eq "")
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{
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# Class method. The new context is the next argument.
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$new_context = shift;
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} else {
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# Instance method. The new context is $self.
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$new_context = $self;
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}
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# Save the old context, if any, on the stack
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push @context_stack, $context if defined($context);
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# Set the new context
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$context = $new_context;
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}
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=head2 restore_context
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&restore_context;
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Restores the context set by C<&set_context>.
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=cut
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#'
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sub restore_context
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{
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my $self = shift;
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if ($#context_stack < 0)
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{
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# Stack underflow.
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die "Context stack underflow";
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}
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# Pop the old context and set it.
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$context = pop @context_stack;
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# FIXME - Should this return something, like maybe the context
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# that was current when this was called?
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}
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=head2 config
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$value = C4::Context->config("config_variable");
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Returns the value of a variable specified in the configuration file
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from which the current context was created.
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=cut
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sub _common_config {
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my ($var, $term) = @_;
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return unless defined $context and defined $context->{config};
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return $context->{config}->get($var, $term);
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}
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sub config {
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return _common_config($_[1],'config');
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}
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sub zebraconfig {
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return _common_config($_[1],'server');
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}
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=head2 preference
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$sys_preference = C4::Context->preference('some_variable');
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Looks up the value of the given system preference in the
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systempreferences table of the Koha database, and returns it. If the
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variable is not set or does not exist, undef is returned.
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In case of an error, this may return 0.
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Note: It is impossible to tell the difference between system
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preferences which do not exist, and those whose values are set to NULL
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with this method.
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=cut
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my $use_syspref_cache = 1;
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sub preference {
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my $self = shift;
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my $var = shift; # The system preference to return
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return Encode::decode_utf8($ENV{"OVERRIDE_SYSPREF_$var"})
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if defined $ENV{"OVERRIDE_SYSPREF_$var"};
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$var = lc $var;
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if ($use_syspref_cache) {
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my $syspref_cache = Koha::Caches->get_instance('syspref');
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my $cached_var = $syspref_cache->get_from_cache("syspref_$var");
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return $cached_var if defined $cached_var;
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}
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my $syspref;
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eval { $syspref = Koha::Config::SysPrefs->find( lc $var ) };
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my $value = $syspref ? $syspref->value() : undef;
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if ( $use_syspref_cache ) {
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my $syspref_cache = Koha::Caches->get_instance('syspref');
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$syspref_cache->set_in_cache("syspref_$var", $value);
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}
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return $value;
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}
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=head2 yaml_preference
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Retrieves the required system preference value, and converts it
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from YAML into a Perl data structure. It throws an exception if
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the value cannot be properly decoded as YAML.
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=cut
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sub yaml_preference {
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my ( $self, $preference ) = @_;
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my $yaml = eval { YAML::XS::Load( Encode::encode_utf8( $self->preference( $preference ) ) ); };
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if ($@) {
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warn "Unable to parse $preference syspref : $@";
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return;
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}
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return $yaml;
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}
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=head2 enable_syspref_cache
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C4::Context->enable_syspref_cache();
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Enable the in-memory syspref cache used by C4::Context. This is the
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default behavior.
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=cut
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sub enable_syspref_cache {
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my ($self) = @_;
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$use_syspref_cache = 1;
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# We need to clear the cache to have it up-to-date
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$self->clear_syspref_cache();
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}
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=head2 disable_syspref_cache
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C4::Context->disable_syspref_cache();
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Disable the in-memory syspref cache used by C4::Context. This should be
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used with Plack and other persistent environments.
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=cut
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sub disable_syspref_cache {
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my ($self) = @_;
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$use_syspref_cache = 0;
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$self->clear_syspref_cache();
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}
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=head2 clear_syspref_cache
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C4::Context->clear_syspref_cache();
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cleans the internal cache of sysprefs. Please call this method if
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you update the systempreferences table. Otherwise, your new changes
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will not be seen by this process.
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=cut
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sub clear_syspref_cache {
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return unless $use_syspref_cache;
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my $syspref_cache = Koha::Caches->get_instance('syspref');
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$syspref_cache->flush_all;
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}
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=head2 set_preference
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C4::Context->set_preference( $variable, $value, [ $explanation, $type, $options ] );
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This updates a preference's value both in the systempreferences table and in
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the sysprefs cache. If the optional parameters are provided, then the query
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becomes a create. It won't update the parameters (except value) for an existing
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preference.
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=cut
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sub set_preference {
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my ( $self, $variable, $value, $explanation, $type, $options ) = @_;
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my $variable_case = $variable;
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$variable = lc $variable;
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my $syspref = Koha::Config::SysPrefs->find($variable);
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$type =
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$type ? $type
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: $syspref ? $syspref->type
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: undef;
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$value = 0 if ( $type && $type eq 'YesNo' && $value eq '' );
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# force explicit protocol on OPACBaseURL
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if ( $variable eq 'opacbaseurl' && $value && substr( $value, 0, 4 ) !~ /http/ ) {
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$value = 'http://' . $value;
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}
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if ($syspref) {
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$syspref->set(
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{ ( defined $value ? ( value => $value ) : () ),
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( $explanation ? ( explanation => $explanation ) : () ),
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( $type ? ( type => $type ) : () ),
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( $options ? ( options => $options ) : () ),
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}
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)->store;
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} else {
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$syspref = Koha::Config::SysPref->new(
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{ variable => $variable_case,
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value => $value,
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explanation => $explanation || undef,
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type => $type,
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options => $options || undef,
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}
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)->store();
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}
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if ( $use_syspref_cache ) {
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my $syspref_cache = Koha::Caches->get_instance('syspref');
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$syspref_cache->set_in_cache( "syspref_$variable", $value );
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}
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return $syspref;
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}
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=head2 delete_preference
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C4::Context->delete_preference( $variable );
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This deletes a system preference from the database. Returns a true value on
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success. Failure means there was an issue with the database, not that there
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was no syspref of the name.
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=cut
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sub delete_preference {
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my ( $self, $var ) = @_;
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if ( Koha::Config::SysPrefs->find( $var )->delete ) {
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if ( $use_syspref_cache ) {
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my $syspref_cache = Koha::Caches->get_instance('syspref');
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$syspref_cache->clear_from_cache("syspref_$var");
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}
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return 1;
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}
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return 0;
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}
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=head2 csv_delimiter
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$delimiter = C4::Context->csv_delimiter;
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Returns preferred CSV delimiter, using system preference 'CSVDelimiter'.
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If this preference is missing or empty, comma will be returned.
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This method is needed because of special behavior for tabulation.
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You can, optionally, pass a value parameter to this routine
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in the case of existing delimiter.
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=cut
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sub csv_delimiter {
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my ( $self, $value ) = @_;
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my $delimiter = $value || $self->preference('CSVDelimiter') || ',';
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$delimiter = "\t" if $delimiter eq 'tabulation';
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return $delimiter;
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}
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=head2 Zconn
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$Zconn = C4::Context->Zconn
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Returns a connection to the Zebra database
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C<$self>
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C<$server> one of the servers defined in the koha-conf.xml file
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C<$async> whether this is a asynchronous connection
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=cut
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sub Zconn {
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my ($self, $server, $async ) = @_;
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my $cache_key = join ('::', (map { $_ // '' } ($server, $async )));
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if ( (!defined($ENV{GATEWAY_INTERFACE})) && defined($context->{"Zconn"}->{$cache_key}) && (0 == $context->{"Zconn"}->{$cache_key}->errcode()) ) {
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# if we are running the script from the commandline, lets try to use the caching
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return $context->{"Zconn"}->{$cache_key};
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}
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$context->{"Zconn"}->{$cache_key}->destroy() if defined($context->{"Zconn"}->{$cache_key}); #destroy old connection before making a new one
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$context->{"Zconn"}->{$cache_key} = &_new_Zconn( $server, $async );
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return $context->{"Zconn"}->{$cache_key};
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}
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=head2 _new_Zconn
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$context->{"Zconn"} = &_new_Zconn($server,$async);
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Internal function. Creates a new database connection from the data given in the current context and returns it.
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C<$server> one of the servers defined in the koha-conf.xml file
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C<$async> whether this is a asynchronous connection
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C<$auth> whether this connection has rw access (1) or just r access (0 or NULL)
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=cut
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sub _new_Zconn {
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my ( $server, $async ) = @_;
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my $tried=0; # first attempt
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my $Zconn; # connection object
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my $elementSetName;
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my $syntax;
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|
|
$server //= "biblioserver";
|
|
|
|
$syntax = 'xml';
|
|
$elementSetName = 'marcxml';
|
|
|
|
my $host = _common_config($server, 'listen')->{content};
|
|
my $serverinfo = _common_config($server, 'serverinfo');
|
|
my $user = $serverinfo->{user};
|
|
my $password = $serverinfo->{password};
|
|
eval {
|
|
# set options
|
|
my $o = ZOOM::Options->new();
|
|
$o->option(user => $user) if $user && $password;
|
|
$o->option(password => $password) if $user && $password;
|
|
$o->option(async => 1) if $async;
|
|
$o->option(cqlfile=> _common_config($server, 'server')->{cql2rpn});
|
|
$o->option(cclfile=> $serverinfo->{ccl2rpn});
|
|
$o->option(preferredRecordSyntax => $syntax);
|
|
$o->option(elementSetName => $elementSetName) if $elementSetName;
|
|
$o->option(databaseName => _common_config($server, 'config') || 'biblios');
|
|
|
|
# create a new connection object
|
|
$Zconn= create ZOOM::Connection($o);
|
|
|
|
# forge to server
|
|
$Zconn->connect($host, 0);
|
|
|
|
# check for errors and warn
|
|
if ($Zconn->errcode() !=0) {
|
|
warn "something wrong with the connection: ". $Zconn->errmsg();
|
|
}
|
|
};
|
|
return $Zconn;
|
|
}
|
|
|
|
# _new_dbh
|
|
# Internal helper function (not a method!). This creates a new
|
|
# database connection from the data given in the current context, and
|
|
# returns it.
|
|
sub _new_dbh
|
|
{
|
|
|
|
Koha::Database->schema({ new => 1 })->storage->dbh;
|
|
}
|
|
|
|
=head2 dbh
|
|
|
|
$dbh = C4::Context->dbh;
|
|
|
|
Returns a database handle connected to the Koha database for the
|
|
current context. If no connection has yet been made, this method
|
|
creates one, and connects to the database.
|
|
|
|
This database handle is cached for future use: if you call
|
|
C<C4::Context-E<gt>dbh> twice, you will get the same handle both
|
|
times. If you need a second database handle, use C<&new_dbh> and
|
|
possibly C<&set_dbh>.
|
|
|
|
=cut
|
|
|
|
#'
|
|
sub dbh
|
|
{
|
|
my $self = shift;
|
|
my $params = shift;
|
|
|
|
unless ( $params->{new} ) {
|
|
return Koha::Database->schema->storage->dbh;
|
|
}
|
|
|
|
return Koha::Database->schema({ new => 1 })->storage->dbh;
|
|
}
|
|
|
|
=head2 new_dbh
|
|
|
|
$dbh = C4::Context->new_dbh;
|
|
|
|
Creates a new connection to the Koha database for the current context,
|
|
and returns the database handle (a C<DBI::db> object).
|
|
|
|
The handle is not saved anywhere: this method is strictly a
|
|
convenience function; the point is that it knows which database to
|
|
connect to so that the caller doesn't have to know.
|
|
|
|
=cut
|
|
|
|
#'
|
|
sub new_dbh
|
|
{
|
|
my $self = shift;
|
|
|
|
return &dbh({ new => 1 });
|
|
}
|
|
|
|
=head2 set_dbh
|
|
|
|
$my_dbh = C4::Connect->new_dbh;
|
|
C4::Connect->set_dbh($my_dbh);
|
|
...
|
|
C4::Connect->restore_dbh;
|
|
|
|
C<&set_dbh> and C<&restore_dbh> work in a manner analogous to
|
|
C<&set_context> and C<&restore_context>.
|
|
|
|
C<&set_dbh> saves the current database handle on a stack, then sets
|
|
the current database handle to C<$my_dbh>.
|
|
|
|
C<$my_dbh> is assumed to be a good database handle.
|
|
|
|
=cut
|
|
|
|
#'
|
|
sub set_dbh
|
|
{
|
|
my $self = shift;
|
|
my $new_dbh = shift;
|
|
|
|
# Save the current database handle on the handle stack.
|
|
# We assume that $new_dbh is all good: if the caller wants to
|
|
# screw himself by passing an invalid handle, that's fine by
|
|
# us.
|
|
push @{$context->{"dbh_stack"}}, $context->{"dbh"};
|
|
$context->{"dbh"} = $new_dbh;
|
|
}
|
|
|
|
=head2 restore_dbh
|
|
|
|
C4::Context->restore_dbh;
|
|
|
|
Restores the database handle saved by an earlier call to
|
|
C<C4::Context-E<gt>set_dbh>.
|
|
|
|
=cut
|
|
|
|
#'
|
|
sub restore_dbh
|
|
{
|
|
my $self = shift;
|
|
|
|
if ($#{$context->{"dbh_stack"}} < 0)
|
|
{
|
|
# Stack underflow
|
|
die "DBH stack underflow";
|
|
}
|
|
|
|
# Pop the old database handle and set it.
|
|
$context->{"dbh"} = pop @{$context->{"dbh_stack"}};
|
|
|
|
# FIXME - If it is determined that restore_context should
|
|
# return something, then this function should, too.
|
|
}
|
|
|
|
=head2 userenv
|
|
|
|
C4::Context->userenv;
|
|
|
|
Retrieves a hash for user environment variables.
|
|
|
|
This hash shall be cached for future use: if you call
|
|
C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
|
|
|
|
=cut
|
|
|
|
#'
|
|
sub userenv {
|
|
my $var = $context->{"activeuser"};
|
|
if (defined $var and defined $context->{"userenv"}->{$var}) {
|
|
return $context->{"userenv"}->{$var};
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
|
|
=head2 set_userenv
|
|
|
|
C4::Context->set_userenv($usernum, $userid, $usercnum,
|
|
$userfirstname, $usersurname,
|
|
$userbranch, $branchname, $userflags,
|
|
$emailaddress, $shibboleth
|
|
$desk_id, $desk_name,
|
|
$register_id, $register_name);
|
|
|
|
Establish a hash of user environment variables.
|
|
|
|
set_userenv is called in Auth.pm
|
|
|
|
=cut
|
|
|
|
#'
|
|
sub set_userenv {
|
|
shift @_;
|
|
my (
|
|
$usernum, $userid, $usercnum, $userfirstname,
|
|
$usersurname, $userbranch, $branchname, $userflags,
|
|
$emailaddress, $shibboleth, $desk_id, $desk_name,
|
|
$register_id, $register_name
|
|
) = @_;
|
|
|
|
my $var=$context->{"activeuser"} || '';
|
|
my $cell = {
|
|
"number" => $usernum,
|
|
"id" => $userid,
|
|
"cardnumber" => $usercnum,
|
|
"firstname" => $userfirstname,
|
|
"surname" => $usersurname,
|
|
|
|
#possibly a law problem
|
|
"branch" => $userbranch,
|
|
"branchname" => $branchname,
|
|
"flags" => $userflags,
|
|
"emailaddress" => $emailaddress,
|
|
"shibboleth" => $shibboleth,
|
|
"desk_id" => $desk_id,
|
|
"desk_name" => $desk_name,
|
|
"register_id" => $register_id,
|
|
"register_name" => $register_name
|
|
};
|
|
$context->{userenv}->{$var} = $cell;
|
|
return $cell;
|
|
}
|
|
|
|
=head2 _new_userenv
|
|
|
|
C4::Context->_new_userenv($session); # FIXME: This calling style is wrong for what looks like an _internal function
|
|
|
|
Builds a hash for user environment variables.
|
|
|
|
This hash shall be cached for future use: if you call
|
|
C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
|
|
|
|
_new_userenv is called in Auth.pm
|
|
|
|
=cut
|
|
|
|
#'
|
|
sub _new_userenv
|
|
{
|
|
shift; # Useless except it compensates for bad calling style
|
|
my ($sessionID)= @_;
|
|
$context->{"activeuser"}=$sessionID;
|
|
}
|
|
|
|
=head2 _unset_userenv
|
|
|
|
C4::Context->_unset_userenv;
|
|
|
|
Destroys the hash for activeuser user environment variables.
|
|
|
|
=cut
|
|
|
|
#'
|
|
|
|
sub _unset_userenv
|
|
{
|
|
my ($sessionID)= @_;
|
|
undef $context->{activeuser} if $sessionID && $context->{activeuser} && $context->{activeuser} eq $sessionID;
|
|
}
|
|
|
|
|
|
=head2 get_versions
|
|
|
|
C4::Context->get_versions
|
|
|
|
Gets various version info, for core Koha packages, Currently called from carp handle_errors() sub, to send to browser if 'DebugLevel' syspref is set to '2'.
|
|
|
|
=cut
|
|
|
|
#'
|
|
|
|
# A little example sub to show more debugging info for CGI::Carp
|
|
sub get_versions {
|
|
my %versions;
|
|
$versions{kohaVersion} = Koha::version();
|
|
$versions{kohaDbVersion} = C4::Context->preference('version');
|
|
$versions{osVersion} = join(" ", POSIX::uname());
|
|
$versions{perlVersion} = $];
|
|
{
|
|
no warnings qw(exec); # suppress warnings if unable to find a program in $PATH
|
|
$versions{mysqlVersion} = `mysql -V`;
|
|
$versions{apacheVersion} = (`apache2ctl -v`)[0];
|
|
$versions{apacheVersion} = `httpd -v` unless $versions{apacheVersion} ;
|
|
$versions{apacheVersion} = `httpd2 -v` unless $versions{apacheVersion} ;
|
|
$versions{apacheVersion} = `apache2 -v` unless $versions{apacheVersion} ;
|
|
$versions{apacheVersion} = `/usr/sbin/apache2 -v` unless $versions{apacheVersion} ;
|
|
}
|
|
return %versions;
|
|
}
|
|
|
|
=head2 tz
|
|
|
|
C4::Context->tz
|
|
|
|
Returns a DateTime::TimeZone object for the system timezone
|
|
|
|
=cut
|
|
|
|
sub tz {
|
|
my $self = shift;
|
|
if (!defined $context->{tz}) {
|
|
my $timezone = $context->{config}->timezone;
|
|
$context->{tz} = DateTime::TimeZone->new(name => $timezone);
|
|
}
|
|
return $context->{tz};
|
|
}
|
|
|
|
|
|
=head2 IsSuperLibrarian
|
|
|
|
C4::Context->IsSuperLibrarian();
|
|
|
|
=cut
|
|
|
|
sub IsSuperLibrarian {
|
|
my $userenv = C4::Context->userenv;
|
|
|
|
unless ( $userenv and exists $userenv->{flags} ) {
|
|
# If we reach this without a user environment,
|
|
# assume that we're running from a command-line script,
|
|
# and act as a superlibrarian.
|
|
carp("C4::Context->userenv not defined!");
|
|
return 1;
|
|
}
|
|
|
|
return ($userenv->{flags}//0) % 2;
|
|
}
|
|
|
|
=head2 interface
|
|
|
|
Sets the current interface for later retrieval in any Perl module
|
|
|
|
C4::Context->interface('opac');
|
|
C4::Context->interface('intranet');
|
|
my $interface = C4::Context->interface;
|
|
|
|
=cut
|
|
|
|
sub interface {
|
|
my ($class, $interface) = @_;
|
|
|
|
if (defined $interface) {
|
|
$interface = lc $interface;
|
|
if ( $interface eq 'api'
|
|
|| $interface eq 'opac'
|
|
|| $interface eq 'intranet'
|
|
|| $interface eq 'sip'
|
|
|| $interface eq 'cron'
|
|
|| $interface eq 'commandline' )
|
|
{
|
|
$context->{interface} = $interface;
|
|
} else {
|
|
warn "invalid interface : '$interface'";
|
|
}
|
|
}
|
|
|
|
return $context->{interface} // 'opac';
|
|
}
|
|
|
|
# always returns a string for OK comparison via "eq" or "ne"
|
|
sub mybranch {
|
|
C4::Context->userenv or return '';
|
|
return C4::Context->userenv->{branch} || '';
|
|
}
|
|
|
|
=head2 only_my_library
|
|
|
|
my $test = C4::Context->only_my_library;
|
|
|
|
Returns true if you enabled IndependentBranches and the current user
|
|
does not have superlibrarian permissions.
|
|
|
|
=cut
|
|
|
|
sub only_my_library {
|
|
return
|
|
C4::Context->preference('IndependentBranches')
|
|
&& C4::Context->userenv
|
|
&& !C4::Context->IsSuperLibrarian()
|
|
&& C4::Context->userenv->{branch};
|
|
}
|
|
|
|
=head3 temporary_directory
|
|
|
|
Returns root directory for temporary storage
|
|
|
|
=cut
|
|
|
|
sub temporary_directory {
|
|
my ( $class ) = @_;
|
|
return C4::Context->config('tmp_path') || File::Spec->tmpdir;
|
|
}
|
|
|
|
=head3 set_remote_address
|
|
|
|
set_remote_address should be called at the beginning of every script
|
|
that is *not* running under plack in order to the REMOTE_ADDR environment
|
|
variable to be set correctly.
|
|
|
|
=cut
|
|
|
|
sub set_remote_address {
|
|
if ( C4::Context->config('koha_trusted_proxies') ) {
|
|
require CGI;
|
|
my $header = CGI->http('HTTP_X_FORWARDED_FOR');
|
|
|
|
if ($header) {
|
|
require Koha::Middleware::RealIP;
|
|
$ENV{REMOTE_ADDR} = Koha::Middleware::RealIP::get_real_ip( $ENV{REMOTE_ADDR}, $header );
|
|
}
|
|
}
|
|
}
|
|
|
|
=head3 https_enabled
|
|
|
|
https_enabled should be called when checking if a HTTPS connection
|
|
is used.
|
|
|
|
Note that this depends on a HTTPS environmental variable being defined
|
|
by the web server. This function may not return the expected result,
|
|
if your web server or reverse proxies are not setting the correct
|
|
X-Forwarded-Proto headers and HTTPS environmental variable.
|
|
|
|
Note too that the HTTPS value can vary from web server to web server.
|
|
We are relying on the convention of the value being "on" or "ON" here.
|
|
|
|
=cut
|
|
|
|
sub https_enabled {
|
|
my $https_enabled = 0;
|
|
my $env_https = $ENV{HTTPS};
|
|
if ($env_https){
|
|
if ($env_https =~ /^ON$/i){
|
|
$https_enabled = 1;
|
|
}
|
|
}
|
|
return $https_enabled;
|
|
}
|
|
|
|
1;
|
|
|
|
=head3 needs_install
|
|
|
|
if ( $context->needs_install ) { ... }
|
|
|
|
This method returns a boolean representing the install status of the Koha instance.
|
|
|
|
=cut
|
|
|
|
sub needs_install {
|
|
my ($self) = @_;
|
|
return ($self->preference('Version')) ? 0 : 1;
|
|
}
|
|
|
|
=head3 is_psgi_or_plack
|
|
|
|
is_psgi_or_plack returns true if there is an environmental variable
|
|
prefixed with "psgi" or "plack". This is useful for detecting whether
|
|
this is a PSGI app or a CGI app, and implementing code as appropriate.
|
|
|
|
=cut
|
|
|
|
sub is_psgi_or_plack {
|
|
my $is_psgi_or_plack = 0;
|
|
if ( any { /(^psgi\.|^plack\.)/i } keys %ENV ) {
|
|
$is_psgi_or_plack = 1;
|
|
}
|
|
return $is_psgi_or_plack;
|
|
}
|
|
|
|
=head3 is_internal_PSGI_request
|
|
|
|
is_internal_PSGI_request is used to detect if this request was made
|
|
from within the individual PSGI app or externally from the mounted PSGI
|
|
app
|
|
|
|
=cut
|
|
|
|
#NOTE: This is not a very robust method but it's the best we have so far
|
|
sub is_internal_PSGI_request {
|
|
my $is_internal = 0;
|
|
if ( (__PACKAGE__->is_psgi_or_plack) && ( $ENV{REQUEST_URI} !~ /^(\/intranet|\/opac)/ ) ){
|
|
$is_internal = 1;
|
|
}
|
|
return $is_internal;
|
|
}
|
|
|
|
__END__
|
|
|
|
=head1 ENVIRONMENT
|
|
|
|
=head2 C<KOHA_CONF>
|
|
|
|
Specifies the configuration file to read.
|
|
|
|
=head1 AUTHORS
|
|
|
|
Andrew Arensburger <arensb at ooblick dot com>
|
|
|
|
Joshua Ferraro <jmf at liblime dot com>
|
|
|