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1104 lines
30 KiB
1104 lines
30 KiB
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'}) {
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require CGI::Carp;
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# FIXME for future reference, CGI::Carp doc says
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# "Note that fatalsToBrowser does not work with mod_perl version 2.0 and higher."
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import CGI::Carp qw(fatalsToBrowser);
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sub handle_errors {
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my $msg = shift;
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my $debug_level;
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eval {C4::Context->dbh();};
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if ($@){
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$debug_level = 1;
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}
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else {
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$debug_level = C4::Context->preference("DebugLevel");
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}
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print q(<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
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<head><title>Koha Error</title></head>
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<body>
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);
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if ($debug_level eq "2"){
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# debug 2 , print extra info too.
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my %versions = get_versions();
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# a little example table with various version info";
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print "
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<h1>Koha error</h1>
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<p>The following fatal error has occurred:</p>
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<pre><code>$msg</code></pre>
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<table>
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<tr><th>Apache</th><td> $versions{apacheVersion}</td></tr>
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<tr><th>Koha</th><td> $versions{kohaVersion}</td></tr>
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<tr><th>Koha DB</th><td> $versions{kohaDbVersion}</td></tr>
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<tr><th>MySQL</th><td> $versions{mysqlVersion}</td></tr>
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<tr><th>OS</th><td> $versions{osVersion}</td></tr>
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<tr><th>Perl</th><td> $versions{perlVersion}</td></tr>
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</table>";
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} elsif ($debug_level eq "1"){
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print "
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<h1>Koha error</h1>
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<p>The following fatal error has occurred:</p>
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<pre><code>$msg</code></pre>";
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} else {
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print "<p>production mode - trapped fatal error</p>";
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}
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print "</body></html>";
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}
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#CGI::Carp::set_message(\&handle_errors);
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## give a stack backtrace if KOHA_BACKTRACES is set
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## can't rely on DebugLevel for this, as we're not yet connected
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if ($ENV{KOHA_BACKTRACES}) {
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$main::SIG{__DIE__} = \&CGI::Carp::confess;
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}
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# Redefine multi_param if cgi version is < 4.08
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# Remove the "CGI::param called in list context" warning in this case
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require CGI; # Can't check version without the require.
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if (!defined($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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} # else there is no browser to send fatals to!
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}
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use 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 Module::Load::Conditional qw(can_load);
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use POSIX ();
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use YAML qw/Load/;
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use ZOOM;
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use C4::Boolean;
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use C4::Debug;
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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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=head2 db_scheme2dbi
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my $dbd_driver_name = C4::Context::db_schema2dbi($scheme);
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This routines translates a database type to part of the name
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of the appropriate DBD driver to use when establishing a new
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database connection. It recognizes 'mysql' and 'Pg'; if any
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other scheme is supplied it defaults to 'mysql'.
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=cut
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sub db_scheme2dbi {
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my $scheme = shift // '';
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return $scheme eq 'Pg' ? $scheme : 'mysql';
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}
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sub import {
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# Create the default context ($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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$context = new C4::Context;
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$context = new C4::Context("/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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my $self = {};
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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 $conf_cache = Koha::Caches->get_instance('config');
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if ( $conf_cache->cache ) {
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$self = $conf_cache->get_from_cache('koha_conf');
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}
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unless ( $self and %$self ) {
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$self = Koha::Config->read_from_file($conf_fname);
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if ( $conf_cache->memcached_cache ) {
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# FIXME it may be better to use the memcached servers from the config file
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# to cache it
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$conf_cache->set_in_cache('koha_conf', $self)
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}
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}
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unless ( exists $self->{config} or 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, $class;
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$self->{db_driver} = db_scheme2dbi($self->config('db_scheme')); # cache database driver
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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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$value = C4::Context->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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The second form is more compact, but of course may conflict with
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method names. If there is a configuration variable called "new", then
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C<C4::Config-E<gt>new> will not return it.
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=cut
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sub _common_config {
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my $var = shift;
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my $term = shift;
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return if !defined($context->{$term});
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# Presumably $self->{$term} might be
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# undefined if the config file given to &new
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# didn't exist, and the caller didn't bother
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# to check the return value.
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# Return the value of the requested config variable
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return $context->{$term}->{$var};
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}
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sub config {
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return _common_config($_[1],'config');
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}
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sub zebraconfig {
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return _common_config($_[1],'server');
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}
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sub ModZebrations {
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return _common_config($_[1],'serverinfo');
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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 $syspref_cache = Koha::Caches->get_instance('syspref');
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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 $ENV{"OVERRIDE_SYSPREF_$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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$syspref_cache = Koha::Caches->get_instance('syspref') unless $syspref_cache;
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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 ( $use_syspref_cache ) {
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$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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sub boolean_preference {
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my $self = shift;
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my $var = shift; # The system preference to return
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my $it = preference($self, $var);
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return defined($it)? C4::Boolean::true_p($it): undef;
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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::Load( $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 $use_syspref_cache;
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$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 ) : () ),
|
|
( $explanation ? ( explanation => $explanation ) : () ),
|
|
( $type ? ( type => $type ) : () ),
|
|
( $options ? ( options => $options ) : () ),
|
|
}
|
|
)->store;
|
|
} else {
|
|
$syspref = Koha::Config::SysPref->new(
|
|
{ variable => $variable_case,
|
|
value => $value,
|
|
explanation => $explanation || undef,
|
|
type => $type,
|
|
options => $options || undef,
|
|
}
|
|
)->store();
|
|
}
|
|
|
|
if ( $use_syspref_cache ) {
|
|
$syspref_cache->set_in_cache( "syspref_$variable", $value );
|
|
}
|
|
|
|
return $syspref;
|
|
}
|
|
|
|
=head2 delete_preference
|
|
|
|
C4::Context->delete_preference( $variable );
|
|
|
|
This deletes a system preference from the database. Returns a true value on
|
|
success. Failure means there was an issue with the database, not that there
|
|
was no syspref of the name.
|
|
|
|
=cut
|
|
|
|
sub delete_preference {
|
|
my ( $self, $var ) = @_;
|
|
|
|
if ( Koha::Config::SysPrefs->find( $var )->delete ) {
|
|
if ( $use_syspref_cache ) {
|
|
$syspref_cache->clear_from_cache("syspref_$var");
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
=head2 Zconn
|
|
|
|
$Zconn = C4::Context->Zconn
|
|
|
|
Returns a connection to the Zebra database
|
|
|
|
C<$self>
|
|
|
|
C<$server> one of the servers defined in the koha-conf.xml file
|
|
|
|
C<$async> whether this is a asynchronous connection
|
|
|
|
=cut
|
|
|
|
sub Zconn {
|
|
my ($self, $server, $async ) = @_;
|
|
my $cache_key = join ('::', (map { $_ // '' } ($server, $async )));
|
|
if ( (!defined($ENV{GATEWAY_INTERFACE})) && defined($context->{"Zconn"}->{$cache_key}) && (0 == $context->{"Zconn"}->{$cache_key}->errcode()) ) {
|
|
# if we are running the script from the commandline, lets try to use the caching
|
|
return $context->{"Zconn"}->{$cache_key};
|
|
}
|
|
$context->{"Zconn"}->{$cache_key}->destroy() if defined($context->{"Zconn"}->{$cache_key}); #destroy old connection before making a new one
|
|
$context->{"Zconn"}->{$cache_key} = &_new_Zconn( $server, $async );
|
|
return $context->{"Zconn"}->{$cache_key};
|
|
}
|
|
|
|
=head2 _new_Zconn
|
|
|
|
$context->{"Zconn"} = &_new_Zconn($server,$async);
|
|
|
|
Internal function. Creates a new database connection from the data given in the current context and returns it.
|
|
|
|
C<$server> one of the servers defined in the koha-conf.xml file
|
|
|
|
C<$async> whether this is a asynchronous connection
|
|
|
|
C<$auth> whether this connection has rw access (1) or just r access (0 or NULL)
|
|
|
|
=cut
|
|
|
|
sub _new_Zconn {
|
|
my ( $server, $async ) = @_;
|
|
|
|
my $tried=0; # first attempt
|
|
my $Zconn; # connection object
|
|
my $elementSetName;
|
|
my $syntax;
|
|
|
|
$server //= "biblioserver";
|
|
|
|
$syntax = 'xml';
|
|
$elementSetName = 'marcxml';
|
|
|
|
my $host = $context->{'listen'}->{$server}->{'content'};
|
|
my $user = $context->{"serverinfo"}->{$server}->{"user"};
|
|
my $password = $context->{"serverinfo"}->{$server}->{"password"};
|
|
eval {
|
|
# set options
|
|
my $o = new ZOOM::Options();
|
|
$o->option(user => $user) if $user && $password;
|
|
$o->option(password => $password) if $user && $password;
|
|
$o->option(async => 1) if $async;
|
|
$o->option(cqlfile=> $context->{"server"}->{$server}->{"cql2rpn"});
|
|
$o->option(cclfile=> $context->{"serverinfo"}->{$server}->{"ccl2rpn"});
|
|
$o->option(preferredRecordSyntax => $syntax);
|
|
$o->option(elementSetName => $elementSetName) if $elementSetName;
|
|
$o->option(databaseName => $context->{"config"}->{$server}||"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, $shibboleth);
|
|
|
|
Establish a hash of user environment variables.
|
|
|
|
set_userenv is called in Auth.pm
|
|
|
|
=cut
|
|
|
|
#'
|
|
sub set_userenv {
|
|
shift @_;
|
|
my ($usernum, $userid, $usercnum, $userfirstname, $usersurname, $userbranch, $branchname, $userflags, $emailaddress, $shibboleth)=
|
|
map { Encode::is_utf8( $_ ) ? $_ : Encode::decode('UTF-8', $_) } # CGI::Session doesn't handle utf-8, so we decode it here
|
|
@_;
|
|
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,
|
|
};
|
|
$context->{userenv}->{$var} = $cell;
|
|
return $cell;
|
|
}
|
|
|
|
sub set_shelves_userenv {
|
|
my ($type, $shelves) = @_ or return;
|
|
my $activeuser = $context->{activeuser} or return;
|
|
$context->{userenv}->{$activeuser}->{barshelves} = $shelves if $type eq 'bar';
|
|
$context->{userenv}->{$activeuser}->{pubshelves} = $shelves if $type eq 'pub';
|
|
$context->{userenv}->{$activeuser}->{totshelves} = $shelves if $type eq 'tot';
|
|
}
|
|
|
|
sub get_shelves_userenv {
|
|
my $active;
|
|
unless ($active = $context->{userenv}->{$context->{activeuser}}) {
|
|
$debug and warn "get_shelves_userenv cannot retrieve context->{userenv}->{context->{activeuser}}";
|
|
return;
|
|
}
|
|
my $totshelves = $active->{totshelves} or undef;
|
|
my $pubshelves = $active->{pubshelves} or undef;
|
|
my $barshelves = $active->{barshelves} or undef;
|
|
return ($totshelves, $pubshelves, $barshelves);
|
|
}
|
|
|
|
=head2 _new_userenv
|
|
|
|
C4::Context->_new_userenv($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 $context->{"activeuser"} if ($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 timezone
|
|
|
|
my $C4::Context->timzone
|
|
|
|
Returns a timezone code for the instance of Koha
|
|
|
|
=cut
|
|
|
|
sub timezone {
|
|
my $self = shift;
|
|
|
|
my $timezone = C4::Context->config('timezone') || $ENV{TZ} || 'local';
|
|
if ( !DateTime::TimeZone->is_valid_name( $timezone ) ) {
|
|
warn "Invalid timezone in koha-conf.xml ($timezone)";
|
|
$timezone = 'local';
|
|
}
|
|
|
|
return $timezone;
|
|
}
|
|
|
|
=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 = $self->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 );
|
|
}
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
__END__
|
|
|
|
=head1 ENVIRONMENT
|
|
|
|
=head2 C<KOHA_CONF>
|
|
|
|
Specifies the configuration file to read.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
XML::Simple
|
|
|
|
=head1 AUTHORS
|
|
|
|
Andrew Arensburger <arensb at ooblick dot com>
|
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Joshua Ferraro <jmf at liblime dot com>
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