2 # Copyright 2002 Katipo Communications
4 # This file is part of Koha.
6 # Koha is free software; you can redistribute it and/or modify it under the
7 # terms of the GNU General Public License as published by the Free Software
8 # Foundation; either version 2 of the License, or (at your option) any later
11 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
12 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
13 # A PARTICULAR PURPOSE. See the GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License along with
16 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
17 # Suite 330, Boston, MA 02111-1307 USA
20 use vars qw($VERSION $AUTOLOAD $context @context_stack);
23 if ($ENV{'HTTP_USER_AGENT'}) {
25 # FIXME for future reference, CGI::Carp doc says
26 # "Note that fatalsToBrowser does not work with mod_perl version 2.0 and higher."
27 import CGI::Carp qw(fatalsToBrowser);
31 eval {C4::Context->dbh();};
36 $debug_level = C4::Context->preference("DebugLevel");
39 print q(<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
40 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
41 <html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
42 <head><title>Koha Error</title></head>
45 if ($debug_level eq "2"){
46 # debug 2 , print extra info too.
47 my %versions = get_versions();
49 # a little example table with various version info";
52 <p>The following fatal error has occurred:</p>
53 <pre><code>$msg</code></pre>
55 <tr><th>Apache</th><td> $versions{apacheVersion}</td></tr>
56 <tr><th>Koha</th><td> $versions{kohaVersion}</td></tr>
57 <tr><th>Koha DB</th><td> $versions{kohaDbVersion}</td></tr>
58 <tr><th>MySQL</th><td> $versions{mysqlVersion}</td></tr>
59 <tr><th>OS</th><td> $versions{osVersion}</td></tr>
60 <tr><th>Perl</th><td> $versions{perlVersion}</td></tr>
63 } elsif ($debug_level eq "1"){
66 <p>The following fatal error has occurred:</p>
67 <pre><code>$msg</code></pre>";
69 print "<p>production mode - trapped fatal error</p>";
71 print "</body></html>";
73 CGI::Carp::set_message(\&handle_errors);
74 ## give a stack backtrace if KOHA_BACKTRACES is set
75 ## can't rely on DebugLevel for this, as we're not yet connected
76 if ($ENV{KOHA_BACKTRACES}) {
77 $main::SIG{__DIE__} = \&CGI::Carp::confess;
79 } # else there is no browser to send fatals to!
80 $VERSION = '3.00.00.036';
91 C4::Context - Maintain and manipulate the context of a Koha script
97 use C4::Context("/path/to/koha-conf.xml");
99 $config_value = C4::Context->config("config_variable");
101 $koha_preference = C4::Context->preference("preference");
103 $db_handle = C4::Context->dbh;
105 $Zconn = C4::Context->Zconn;
107 $stopwordhash = C4::Context->stopwords;
111 When a Koha script runs, it makes use of a certain number of things:
112 configuration settings in F</etc/koha/koha-conf.xml>, a connection to the Koha
113 databases, and so forth. These things make up the I<context> in which
116 This module takes care of setting up the context for a script:
117 figuring out which configuration file to load, and loading it, opening
118 a connection to the right database, and so forth.
120 Most scripts will only use one context. They can simply have
126 Other scripts may need to use several contexts. For instance, if a
127 library has two databases, one for a certain collection, and the other
128 for everything else, it might be necessary for a script to use two
129 different contexts to search both databases. Such scripts should use
130 the C<&set_context> and C<&restore_context> functions, below.
132 By default, C4::Context reads the configuration from
133 F</etc/koha/koha-conf.xml>. This may be overridden by setting the C<$KOHA_CONF>
134 environment variable to the pathname of a configuration file to use.
143 # In addition to what is said in the POD above, a Context object is a
144 # reference-to-hash with the following fields:
147 # A reference-to-hash whose keys and values are the
148 # configuration variables and values specified in the config
149 # file (/etc/koha/koha-conf.xml).
151 # A handle to the appropriate database for this context.
153 # Used by &set_dbh and &restore_dbh to hold other database
154 # handles for this context.
156 # A connection object for the Zebra server
158 # Koha's main configuration file koha-conf.xml
159 # is searched for according to this priority list:
161 # 1. Path supplied via use C4::Context '/path/to/koha-conf.xml'
162 # 2. Path supplied in KOHA_CONF environment variable.
163 # 3. Path supplied in INSTALLED_CONFIG_FNAME, as long
164 # as value has changed from its default of
165 # '__KOHA_CONF_DIR__/koha-conf.xml', as happens
166 # when Koha is installed in 'standard' or 'single'
168 # 4. Path supplied in CONFIG_FNAME.
170 # The first entry that refers to a readable file is used.
172 use constant CONFIG_FNAME => "/etc/koha/koha-conf.xml";
173 # Default config file, if none is specified
175 my $INSTALLED_CONFIG_FNAME = '__KOHA_CONF_DIR__/koha-conf.xml';
176 # path to config file set by installer
177 # __KOHA_CONF_DIR__ is set by rewrite-confg.PL
178 # when Koha is installed in 'standard' or 'single'
179 # mode. If Koha was installed in 'dev' mode,
180 # __KOHA_CONF_DIR__ is *not* rewritten; instead
181 # developers should set the KOHA_CONF environment variable
183 $context = undef; # Initially, no context is set
184 @context_stack = (); # Initially, no saved contexts
188 returns the kohaversion stored in kohaversion.pl file
193 my $cgidir = C4::Context->intranetdir ."/cgi-bin";
195 # 2 cases here : on CVS install, $cgidir does not need a /cgi-bin
196 # on a standard install, /cgi-bin need to be added.
197 # test one, then the other
198 # FIXME - is this all really necessary?
199 unless (opendir(DIR, "$cgidir/cataloguing/value_builder")) {
200 $cgidir = C4::Context->intranetdir;
204 do $cgidir."/kohaversion.pl" || die "NO $cgidir/kohaversion.pl";
205 return kohaversion();
207 =item read_config_file
211 Reads the specified Koha config file.
213 Returns an object containing the configuration variables. The object's
214 structure is a bit complex to the uninitiated ... take a look at the
215 koha-conf.xml file as well as the XML::Simple documentation for details. Or,
216 here are a few examples that may give you what you need:
218 The simple elements nested within the <config> element:
220 my $pass = $koha->{'config'}->{'pass'};
222 The <listen> elements:
224 my $listen = $koha->{'listen'}->{'biblioserver'}->{'content'};
226 The elements nested within the <server> element:
228 my $ccl2rpn = $koha->{'server'}->{'biblioserver'}->{'cql2rpn'};
230 Returns undef in case of error.
236 sub read_config_file { # Pass argument naming config file to read
237 my $koha = XMLin(shift, keyattr => ['id'], forcearray => ['listen', 'server', 'serverinfo']);
238 return $koha; # Return value: ref-to-hash holding the configuration
242 # Translates the full text name of a database into de appropiate dbi name
248 # FIXME - Should have other databases.
249 if (/mysql/i) { return("mysql"); }
250 if (/Postgres|Pg|PostgresSQL/) { return("Pg"); }
251 if (/oracle/i) { return("Oracle"); }
253 return undef; # Just in case
258 my $conf_fname = shift; # Config file name
260 # Create a new context from the given config file name, if
261 # any, then set it as the current context.
262 $context = new C4::Context($conf_fname) unless $context;
263 return undef if !defined($context);
264 $context->set_context;
269 $context = new C4::Context;
270 $context = new C4::Context("/path/to/koha-conf.xml");
272 Allocates a new context. Initializes the context from the specified
273 file, which defaults to either the file given by the C<$KOHA_CONF>
274 environment variable, or F</etc/koha/koha-conf.xml>.
276 C<&new> does not set this context as the new default context; for
277 that, use C<&set_context>.
283 # 2004-08-10 A. Tarallo: Added check if the conf file is not empty
286 my $conf_fname = shift; # Config file to load
289 # check that the specified config file exists and is not empty
290 undef $conf_fname unless
291 (defined $conf_fname && -s $conf_fname);
292 # Figure out a good config file to load if none was specified.
293 if (!defined($conf_fname))
295 # If the $KOHA_CONF environment variable is set, use
296 # that. Otherwise, use the built-in default.
297 if (exists $ENV{"KOHA_CONF"} and $ENV{'KOHA_CONF'} and -s $ENV{"KOHA_CONF"}) {
298 $conf_fname = $ENV{"KOHA_CONF"};
299 } elsif ($INSTALLED_CONFIG_FNAME !~ /__KOHA_CONF_DIR/ and -s $INSTALLED_CONFIG_FNAME) {
300 # NOTE: be careful -- don't change __KOHA_CONF_DIR in the above
301 # regex to anything else -- don't want installer to rewrite it
302 $conf_fname = $INSTALLED_CONFIG_FNAME;
303 } elsif (-s CONFIG_FNAME) {
304 $conf_fname = CONFIG_FNAME;
306 warn "unable to locate Koha configuration file koha-conf.xml";
310 # Load the desired config file.
311 $self = read_config_file($conf_fname);
312 $self->{"config_file"} = $conf_fname;
314 warn "read_config_file($conf_fname) returned undef" if !defined($self->{"config"});
315 return undef if !defined($self->{"config"});
317 $self->{"dbh"} = undef; # Database handle
318 $self->{"Zconn"} = undef; # Zebra Connections
319 $self->{"stopwords"} = undef; # stopwords list
320 $self->{"marcfromkohafield"} = undef; # the hash with relations between koha table fields and MARC field/subfield
321 $self->{"userenv"} = undef; # User env
322 $self->{"activeuser"} = undef; # current active user
323 $self->{"shelves"} = undef;
331 $context = new C4::Context;
332 $context->set_context();
334 set_context C4::Context $context;
337 restore_context C4::Context;
339 In some cases, it might be necessary for a script to use multiple
340 contexts. C<&set_context> saves the current context on a stack, then
341 sets the context to C<$context>, which will be used in future
342 operations. To restore the previous context, use C<&restore_context>.
350 my $new_context; # The context to set
352 # Figure out whether this is a class or instance method call.
354 # We're going to make the assumption that control got here
355 # through valid means, i.e., that the caller used an instance
356 # or class method call, and that control got here through the
357 # usual inheritance mechanisms. The caller can, of course,
358 # break this assumption by playing silly buggers, but that's
359 # harder to do than doing it properly, and harder to check
361 if (ref($self) eq "")
363 # Class method. The new context is the next argument.
364 $new_context = shift;
366 # Instance method. The new context is $self.
367 $new_context = $self;
370 # Save the old context, if any, on the stack
371 push @context_stack, $context if defined($context);
373 # Set the new context
374 $context = $new_context;
377 =item restore_context
381 Restores the context set by C<&set_context>.
390 if ($#context_stack < 0)
393 die "Context stack underflow";
396 # Pop the old context and set it.
397 $context = pop @context_stack;
399 # FIXME - Should this return something, like maybe the context
400 # that was current when this was called?
405 $value = C4::Context->config("config_variable");
407 $value = C4::Context->config_variable;
409 Returns the value of a variable specified in the configuration file
410 from which the current context was created.
412 The second form is more compact, but of course may conflict with
413 method names. If there is a configuration variable called "new", then
414 C<C4::Config-E<gt>new> will not return it.
418 sub _common_config ($$) {
421 return undef if !defined($context->{$term});
422 # Presumably $self->{$term} might be
423 # undefined if the config file given to &new
424 # didn't exist, and the caller didn't bother
425 # to check the return value.
427 # Return the value of the requested config variable
428 return $context->{$term}->{$var};
432 return _common_config($_[1],'config');
435 return _common_config($_[1],'server');
438 return _common_config($_[1],'serverinfo');
443 $sys_preference = C4::Context->preference("some_variable");
445 Looks up the value of the given system preference in the
446 systempreferences table of the Koha database, and returns it. If the
447 variable is not set, or in case of error, returns the undefined value.
452 # FIXME - The preferences aren't likely to change over the lifetime of
453 # the script (and things might break if they did change), so perhaps
454 # this function should cache the results it finds.
458 my $var = shift; # The system preference to return
459 my $dbh = C4::Context->dbh or return 0;
460 # Look up systempreferences.variable==$var
461 my $sql = <<'END_SQL';
463 FROM systempreferences
467 my $retval = $dbh->selectrow_array($sql, {}, $var);
471 sub boolean_preference ($) {
473 my $var = shift; # The system preference to return
474 my $it = preference($self, $var);
475 return defined($it)? C4::Boolean::true_p($it): undef;
479 # This implements C4::Config->foo, and simply returns
480 # C4::Context->config("foo"), as described in the documentation for
483 # FIXME - Perhaps this should be extended to check &config first, and
484 # then &preference if that fails. OTOH, AUTOLOAD could lead to crappy
485 # code, so it'd probably be best to delete it altogether so as not to
486 # encourage people to use it.
491 $AUTOLOAD =~ s/.*:://; # Chop off the package name,
492 # leaving only the function name.
493 return $self->config($AUTOLOAD);
498 $Zconn = C4::Context->Zconn
500 Returns a connection to the Zebra database for the current
501 context. If no connection has yet been made, this method
502 creates one and connects.
506 C<$server> one of the servers defined in the koha-conf.xml file
508 C<$async> whether this is a asynchronous connection
510 C<$auth> whether this connection has rw access (1) or just r access (0 or NULL)
522 if ( defined($context->{"Zconn"}->{$server}) && (0 == $context->{"Zconn"}->{$server}->errcode()) ) {
523 return $context->{"Zconn"}->{$server};
524 # No connection object or it died. Create one.
526 # release resources if we're closing a connection and making a new one
527 # FIXME: this needs to be smarter -- an error due to a malformed query or
528 # a missing index does not necessarily require us to close the connection
529 # and make a new one, particularly for a batch job. However, at
530 # first glance it does not look like there's a way to easily check
531 # the basic health of a ZOOM::Connection
532 $context->{"Zconn"}->{$server}->destroy() if defined($context->{"Zconn"}->{$server});
534 $context->{"Zconn"}->{$server} = &_new_Zconn($server,$async,$auth,$piggyback,$syntax);
535 return $context->{"Zconn"}->{$server};
541 $context->{"Zconn"} = &_new_Zconn($server,$async);
543 Internal function. Creates a new database connection from the data given in the current context and returns it.
545 C<$server> one of the servers defined in the koha-conf.xml file
547 C<$async> whether this is a asynchronous connection
549 C<$auth> whether this connection has rw access (1) or just r access (0 or NULL)
554 my ($server,$async,$auth,$piggyback,$syntax) = @_;
556 my $tried=0; # first attempt
557 my $Zconn; # connection object
558 $server = "biblioserver" unless $server;
559 $syntax = "usmarc" unless $syntax;
561 my $host = $context->{'listen'}->{$server}->{'content'};
562 my $servername = $context->{"config"}->{$server};
563 my $user = $context->{"serverinfo"}->{$server}->{"user"};
564 my $password = $context->{"serverinfo"}->{$server}->{"password"};
565 $auth = 1 if($user && $password);
569 my $o = new ZOOM::Options();
570 $o->option(user=>$user) if $auth;
571 $o->option(password=>$password) if $auth;
572 $o->option(async => 1) if $async;
573 $o->option(count => $piggyback) if $piggyback;
574 $o->option(cqlfile=> $context->{"server"}->{$server}->{"cql2rpn"});
575 $o->option(cclfile=> $context->{"serverinfo"}->{$server}->{"ccl2rpn"});
576 $o->option(preferredRecordSyntax => $syntax);
577 $o->option(elementSetName => "F"); # F for 'full' as opposed to B for 'brief'
578 $o->option(databaseName => ($servername?$servername:"biblios"));
580 # create a new connection object
581 $Zconn= create ZOOM::Connection($o);
584 $Zconn->connect($host, 0);
586 # check for errors and warn
587 if ($Zconn->errcode() !=0) {
588 warn "something wrong with the connection: ". $Zconn->errmsg();
593 # # Koha manages the Zebra server -- this doesn't work currently for me because of permissions issues
594 # # Also, I'm skeptical about whether it's the best approach
595 # warn "problem with Zebra";
596 # if ( C4::Context->preference("ManageZebra") ) {
597 # if ($@->code==10000 && $tried==0) { ##No connection try restarting Zebra
599 # warn "trying to restart Zebra";
600 # my $res=system("zebrasrv -f $ENV{'KOHA_CONF'} >/koha/log/zebra-error.log");
603 # warn "Error ", $@->code(), ": ", $@->message(), "\n";
613 # Internal helper function (not a method!). This creates a new
614 # database connection from the data given in the current context, and
620 ##correct name for db_schme
622 if ($context->config("db_scheme")){
623 $db_driver=db_scheme2dbi($context->config("db_scheme"));
628 my $db_name = $context->config("database");
629 my $db_host = $context->config("hostname");
630 my $db_port = $context->config("port");
631 $db_port = "" unless defined $db_port;
632 my $db_user = $context->config("user");
633 my $db_passwd = $context->config("pass");
634 # MJR added or die here, as we can't work without dbh
635 my $dbh= DBI->connect("DBI:$db_driver:dbname=$db_name;host=$db_host;port=$db_port",
636 $db_user, $db_passwd) or die $DBI::errstr;
637 if ( $db_driver eq 'mysql' ) {
638 # Koha 3.0 is utf-8, so force utf8 communication between mySQL and koha, whatever the mysql default config.
639 # this is better than modifying my.cnf (and forcing all communications to be in utf8)
640 $dbh->{'mysql_enable_utf8'}=1; #enable
641 $dbh->do("set NAMES 'utf8'");
643 elsif ( $db_driver eq 'Pg' ) {
644 $dbh->do( "set client_encoding = 'UTF8';" );
651 $dbh = C4::Context->dbh;
653 Returns a database handle connected to the Koha database for the
654 current context. If no connection has yet been made, this method
655 creates one, and connects to the database.
657 This database handle is cached for future use: if you call
658 C<C4::Context-E<gt>dbh> twice, you will get the same handle both
659 times. If you need a second database handle, use C<&new_dbh> and
660 possibly C<&set_dbh>.
670 if (defined($context->{"dbh"})) {
671 $sth=$context->{"dbh"}->prepare("select 1");
672 return $context->{"dbh"} if (defined($sth->execute));
675 # No database handle or it died . Create one.
676 $context->{"dbh"} = &_new_dbh();
678 return $context->{"dbh"};
683 $dbh = C4::Context->new_dbh;
685 Creates a new connection to the Koha database for the current context,
686 and returns the database handle (a C<DBI::db> object).
688 The handle is not saved anywhere: this method is strictly a
689 convenience function; the point is that it knows which database to
690 connect to so that the caller doesn't have to know.
704 $my_dbh = C4::Connect->new_dbh;
705 C4::Connect->set_dbh($my_dbh);
707 C4::Connect->restore_dbh;
709 C<&set_dbh> and C<&restore_dbh> work in a manner analogous to
710 C<&set_context> and C<&restore_context>.
712 C<&set_dbh> saves the current database handle on a stack, then sets
713 the current database handle to C<$my_dbh>.
715 C<$my_dbh> is assumed to be a good database handle.
725 # Save the current database handle on the handle stack.
726 # We assume that $new_dbh is all good: if the caller wants to
727 # screw himself by passing an invalid handle, that's fine by
729 push @{$context->{"dbh_stack"}}, $context->{"dbh"};
730 $context->{"dbh"} = $new_dbh;
735 C4::Context->restore_dbh;
737 Restores the database handle saved by an earlier call to
738 C<C4::Context-E<gt>set_dbh>.
747 if ($#{$context->{"dbh_stack"}} < 0)
750 die "DBH stack underflow";
753 # Pop the old database handle and set it.
754 $context->{"dbh"} = pop @{$context->{"dbh_stack"}};
756 # FIXME - If it is determined that restore_context should
757 # return something, then this function should, too.
760 =item marcfromkohafield
762 $dbh = C4::Context->marcfromkohafield;
764 Returns a hash with marcfromkohafield.
766 This hash is cached for future use: if you call
767 C<C4::Context-E<gt>marcfromkohafield> twice, you will get the same hash without real DB access
772 sub marcfromkohafield
776 # If the hash already exists, return it.
777 return $context->{"marcfromkohafield"} if defined($context->{"marcfromkohafield"});
779 # No hash. Create one.
780 $context->{"marcfromkohafield"} = &_new_marcfromkohafield();
782 return $context->{"marcfromkohafield"};
785 # _new_marcfromkohafield
786 # Internal helper function (not a method!). This creates a new
787 # hash with stopwords
788 sub _new_marcfromkohafield
790 my $dbh = C4::Context->dbh;
791 my $marcfromkohafield;
792 my $sth = $dbh->prepare("select frameworkcode,kohafield,tagfield,tagsubfield from marc_subfield_structure where kohafield > ''");
794 while (my ($frameworkcode,$kohafield,$tagfield,$tagsubfield) = $sth->fetchrow) {
796 $marcfromkohafield->{$frameworkcode}->{$kohafield} = [$tagfield,$tagsubfield];
798 return $marcfromkohafield;
803 $dbh = C4::Context->stopwords;
805 Returns a hash with stopwords.
807 This hash is cached for future use: if you call
808 C<C4::Context-E<gt>stopwords> twice, you will get the same hash without real DB access
817 # If the hash already exists, return it.
818 return $context->{"stopwords"} if defined($context->{"stopwords"});
820 # No hash. Create one.
821 $context->{"stopwords"} = &_new_stopwords();
823 return $context->{"stopwords"};
827 # Internal helper function (not a method!). This creates a new
828 # hash with stopwords
831 my $dbh = C4::Context->dbh;
833 my $sth = $dbh->prepare("select word from stopwords");
835 while (my $stopword = $sth->fetchrow_array) {
837 $stopwordlist->{$stopword} = uc($stopword);
839 $stopwordlist->{A} = "A" unless $stopwordlist;
840 return $stopwordlist;
845 C4::Context->userenv;
847 Builds a hash for user environment variables.
849 This hash shall be cached for future use: if you call
850 C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
852 set_userenv is called in Auth.pm
859 my $var = $context->{"activeuser"};
860 return $context->{"userenv"}->{$var} if (defined $context->{"userenv"}->{$var});
861 # insecure=1 management
862 if ($context->{"dbh"} && $context->preference('insecure')) {
864 $insecure{flags} = '16382';
865 $insecure{branchname} ='Insecure';
866 $insecure{number} ='0';
867 $insecure{cardnumber} ='0';
868 $insecure{id} = 'insecure';
869 $insecure{branch} = 'INS';
870 $insecure{emailaddress} = 'test@mode.insecure.com';
879 C4::Context->set_userenv($usernum, $userid, $usercnum, $userfirstname, $usersurname, $userbranch, $userflags, $emailaddress);
881 Informs a hash for user environment variables.
883 This hash shall be cached for future use: if you call
884 C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
886 set_userenv is called in Auth.pm
892 my ($usernum, $userid, $usercnum, $userfirstname, $usersurname, $userbranch, $branchname, $userflags, $emailaddress, $branchprinter)= @_;
893 my $var=$context->{"activeuser"};
895 "number" => $usernum,
897 "cardnumber" => $usercnum,
898 "firstname" => $userfirstname,
899 "surname" => $usersurname,
900 #possibly a law problem
901 "branch" => $userbranch,
902 "branchname" => $branchname,
903 "flags" => $userflags,
904 "emailaddress" => $emailaddress,
905 "branchprinter" => $branchprinter
907 $context->{userenv}->{$var} = $cell;
911 sub set_shelves_userenv ($$) {
912 my ($type, $shelves) = @_ or return undef;
913 my $activeuser = $context->{activeuser} or return undef;
914 $context->{userenv}->{$activeuser}->{barshelves} = $shelves if $type eq 'bar';
915 $context->{userenv}->{$activeuser}->{pubshelves} = $shelves if $type eq 'pub';
916 $context->{userenv}->{$activeuser}->{totshelves} = $shelves if $type eq 'tot';
919 sub get_shelves_userenv () {
921 unless ($active = $context->{userenv}->{$context->{activeuser}}) {
922 $debug and warn "get_shelves_userenv cannot retrieve context->{userenv}->{context->{activeuser}}";
925 my $totshelves = $active->{totshelves} or undef;
926 my $pubshelves = $active->{pubshelves} or undef;
927 my $barshelves = $active->{barshelves} or undef;
928 return ($totshelves, $pubshelves, $barshelves);
933 C4::Context->_new_userenv($session);
935 Builds a hash for user environment variables.
937 This hash shall be cached for future use: if you call
938 C<C4::Context-E<gt>userenv> twice, you will get the same hash without real DB access
940 _new_userenv is called in Auth.pm
949 $context->{"activeuser"}=$sessionID;
954 C4::Context->_unset_userenv;
956 Destroys the hash for activeuser user environment variables.
965 undef $context->{"activeuser"} if ($context->{"activeuser"} eq $sessionID);
971 C4::Context->get_versions
973 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'.
979 # A little example sub to show more debugging info for CGI::Carp
982 $versions{kohaVersion} = KOHAVERSION();
983 $versions{kohaDbVersion} = C4::Context->preference('version');
984 $versions{osVersion} = `uname -a`;
985 $versions{perlVersion} = $];
986 $versions{mysqlVersion} = `mysql -V`;
987 $versions{apacheVersion} = `httpd -v`;
988 $versions{apacheVersion} = `httpd2 -v` unless $versions{apacheVersion} ;
989 $versions{apacheVersion} = `apache2 -v` unless $versions{apacheVersion} ;
990 $versions{apacheVersion} = `/usr/sbin/apache2 -v` unless $versions{apacheVersion} ;
1006 Specifies the configuration file to read.
1016 Andrew Arensburger <arensb at ooblick dot com>
1018 Joshua Ferraro <jmf at liblime dot com>
1022 # Revision 1.57 2007/05/22 09:13:55 tipaul
1023 # Bugfixes & improvements (various and minor) :
1024 # - updating templates to have tmpl_process3.pl running without any errors
1025 # - adding a drupal-like css for prog templates (with 3 small images)
1026 # - fixing some bugs in circulation & other scripts
1027 # - updating french translation
1028 # - fixing some typos in templates
1030 # Revision 1.56 2007/04/23 15:21:17 tipaul
1031 # renaming currenttransfers to transferstoreceive
1033 # Revision 1.55 2007/04/17 08:48:00 tipaul
1034 # circulation cleaning continued: bufixing
1036 # Revision 1.54 2007/03/29 16:45:53 tipaul
1037 # Code cleaning of Biblio.pm (continued)
1039 # All subs have be cleaned :
1042 # - reordering Biblio.pm completly
1043 # - using only naming conventions
1045 # Seems to have broken nothing, but it still has to be heavily tested.
1046 # Note that Biblio.pm is now much more efficient than previously & probably more reliable as well.
1048 # Revision 1.53 2007/03/29 13:30:31 tipaul
1050 # == Biblio.pm cleaning (useless) ==
1051 # * some sub declaration dropped
1052 # * removed modbiblio sub
1053 # * removed moditem sub
1054 # * removed newitems. It was used only in finishrecieve. Replaced by a TransformKohaToMarc+AddItem, that is better.
1055 # * removed MARCkoha2marcItem
1056 # * removed MARCdelsubfield declaration
1057 # * removed MARCkoha2marcBiblio
1059 # == Biblio.pm cleaning (naming conventions) ==
1060 # * MARCgettagslib renamed to GetMarcStructure
1061 # * MARCgetitems renamed to GetMarcItem
1062 # * MARCfind_frameworkcode renamed to GetFrameworkCode
1063 # * MARCmarc2koha renamed to TransformMarcToKoha
1064 # * MARChtml2marc renamed to TransformHtmlToMarc
1065 # * MARChtml2xml renamed to TranformeHtmlToXml
1066 # * zebraop renamed to ModZebra
1069 # * removing MARC=OFF related scripts (in cataloguing directory)
1070 # * removed checkitems (function related to MARC=off feature, that is completly broken in head. If someone want to reintroduce it, hard work coming...)
1071 # * removed getitemsbybiblioitem (used only by MARC=OFF scripts, that is removed as well)
1073 # Revision 1.52 2007/03/16 01:25:08 kados
1074 # Using my precrash CVS copy I did the following:
1076 # cvs -z3 -d:ext:kados@cvs.savannah.nongnu.org:/sources/koha co -P koha
1077 # find koha.precrash -type d -name "CVS" -exec rm -v {} \;
1078 # cp -r koha.precrash/* koha/
1082 # This should in theory put us right back where we were before the crash
1084 # Revision 1.52 2007/03/12 21:17:05 rych
1085 # add server, serverinfo as arrays from config
1087 # Revision 1.51 2007/03/09 14:31:47 tipaul
1088 # rel_3_0 moved to HEAD
1090 # Revision 1.43.2.10 2007/02/09 17:17:56 hdl
1091 # Managing a little better database absence.
1092 # (preventing from BIG 550)
1094 # Revision 1.43.2.9 2006/12/20 16:50:48 tipaul
1095 # improving "insecure" management
1098 # you told me that you had some libraries with insecure=ON (behind a firewall).
1099 # In this commit, I created a "fake" user when insecure=ON. It has a fake branch. You may find better to have the 1st branch in branch table instead of a fake one.
1101 # Revision 1.43.2.8 2006/12/19 16:48:16 alaurin
1102 # reident programs, and adding branchcode value in reserves
1104 # Revision 1.43.2.7 2006/12/06 21:55:38 hdl
1105 # Adding ModZebrations for servers to get serverinfos in Context.pm
1106 # Using this function in rebuild_zebra.pl
1108 # Revision 1.43.2.6 2006/11/24 21:18:31 kados
1109 # very minor changes, no functional ones, just comments, etc.
1111 # Revision 1.43.2.5 2006/10/30 13:24:16 toins
1112 # fix some minor POD error.
1114 # Revision 1.43.2.4 2006/10/12 21:42:49 hdl
1115 # Managing multiple zebra connections
1117 # Revision 1.43.2.3 2006/10/11 14:27:26 tipaul
1118 # removing a warning
1120 # Revision 1.43.2.2 2006/10/10 15:28:16 hdl
1121 # BUG FIXING : using database name in Zconn if defined and not hard coded value
1123 # Revision 1.43.2.1 2006/10/06 13:47:28 toins
1124 # Synch with dev_week.
1125 # /!\ WARNING :: Please now use the new version of koha.xml.
1127 # Revision 1.18.2.5.2.14 2006/09/24 15:24:06 kados
1128 # remove Zebraauth routine, fold the functionality into Zconn
1129 # Zconn can now take several arguments ... this will probably
1130 # change soon as I'm not completely happy with the readability
1131 # of the current format ... see the POD for details.
1133 # cleaning up Biblio.pm, removing unnecessary routines.
1135 # DeleteBiblio - used to delete a biblio from zebra and koha tables
1136 # -- checks to make sure there are no existing issues
1137 # -- saves backups of biblio,biblioitems,items in deleted* tables
1138 # -- does commit operation
1140 # getRecord - used to retrieve one record from zebra in piggyback mode using biblionumber
1141 # brought back z3950_extended_services routine
1143 # Lots of modifications to Context.pm, you can now store user and pass info for
1144 # multiple servers (for federated searching) using the <serverinfo> element.
1145 # I'll commit my koha.xml to demonstrate this or you can refer to the POD in
1146 # Context.pm (which I also expanded on).
1148 # Revision 1.18.2.5.2.13 2006/08/10 02:10:21 kados
1149 # Turned warnings on, and running a search turned up lots of warnings.
1150 # Cleaned up those ...
1152 # removed getitemtypes from Koha.pm (one in Search.pm looks newer)
1153 # removed itemcount from Biblio.pm
1155 # made some local subs local with a _ prefix (as they were redefined
1158 # Add two new search subs to Search.pm the start of a new search API
1159 # that's a bit more scalable
1161 # Revision 1.18.2.5.2.10 2006/07/21 17:50:51 kados
1162 # moving the *.properties files to intranetdir/etc dir
1164 # Revision 1.18.2.5.2.9 2006/07/17 08:05:20 tipaul
1165 # there was a hardcoded link to /koha/etc/ I replaced it with intranetdir config value
1167 # Revision 1.18.2.5.2.8 2006/07/11 12:20:37 kados
1168 # adding ccl and cql files ... Tumer, if you want to fit these into the
1169 # config file by all means do.
1171 # Revision 1.18.2.5.2.7 2006/06/04 22:50:33 tgarip1957
1172 # We do not hard code cql2rpn conversion file in context.pm our koha.xml configuration file already describes the path for this file.
1173 # At cql searching we use method CQL not CQL2RPN as the cql2rpn conversion file is defined at server level
1175 # Revision 1.18.2.5.2.6 2006/06/02 23:11:24 kados
1176 # Committing my working dev_week. It's been tested only with
1177 # searching, and there's quite a lot of config stuff to set up
1178 # beforehand. As things get closer to a release, we'll be making
1179 # some scripts to do it for us
1181 # Revision 1.18.2.5.2.5 2006/05/28 18:49:12 tgarip1957
1182 # This is an unusual commit. The main purpose is a working model of Zebra on a modified rel2_2.
1183 # Any questions regarding these commits should be asked to Joshua Ferraro unless you are Joshua whom I'll report to
1185 # Revision 1.36 2006/05/09 13:28:08 tipaul
1186 # adding the branchname and the librarian name in every page :
1187 # - modified userenv to add branchname
1188 # - modifier menus.inc to have the librarian name & userenv displayed on every page. they are in a librarian_information div.
1190 # Revision 1.35 2006/04/13 08:40:11 plg
1191 # bug fixed: typo on Zconnauth name
1193 # Revision 1.34 2006/04/10 21:40:23 tgarip1957
1194 # A new handler defined for zebra Zconnauth with read/write permission. Zconnauth should only be called in biblio.pm where write operations are. Use of this handler will break things unless koha.conf contains new variables:
1196 # zebraport=<your port>
1197 # zebrauser=<username>
1198 # zebrapass=<password>
1200 # The zebra.cfg file should read:
1203 # passw.c:<yourpasswordfile>
1205 # Password file should be prepared with Apaches htpasswd utility in encrypted mode and should exist in a folder zebra.cfg can read
1207 # Revision 1.33 2006/03/15 11:21:56 plg
1208 # bug fixed: utf-8 data where not displayed correctly in screens. Supposing
1209 # your data are truely utf-8 encoded in your database, they should be
1210 # correctly displayed. "set names 'UTF8'" on mysql connection (C4/Context.pm)
1211 # is mandatory and "binmode" to utf8 (C4/Interface/CGI/Output.pm) seemed to
1212 # converted data twice, so it was removed.
1214 # Revision 1.32 2006/03/03 17:25:01 hdl
1215 # Bug fixing : a line missed a comment sign.
1217 # Revision 1.31 2006/03/03 16:45:36 kados
1218 # Remove the search that tests the Zconn -- warning, still no fault
1221 # Revision 1.30 2006/02/22 00:56:59 kados
1222 # First go at a connection object for Zebra. You can now get a
1223 # connection object by doing:
1225 # my $Zconn = C4::Context->Zconn;
1227 # My initial tests indicate that as soon as your funcion ends
1228 # (ie, when you're done doing something) the connection will be
1229 # closed automatically. There may be some other way to make the
1230 # connection more stateful, I'm not sure...