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410 lines
12 KiB
Perl
410 lines
12 KiB
Perl
# -*- Mode: perl; indent-tabs-mode: nil -*-
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#
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# The contents of this file are subject to the Mozilla Public
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# License Version 1.1 (the "License"); you may not use this file
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# except in compliance with the License. You may obtain a copy of
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# the License at http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS
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# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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# implied. See the License for the specific language governing
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# rights and limitations under the License.
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#
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# The Original Code is the Bugzilla Bug Tracking System.
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#
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# The Initial Developer of the Original Code is Netscape Communications
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# Corporation. Portions created by Netscape are
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# Copyright (C) 1998 Netscape Communications Corporation. All
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# Rights Reserved.
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#
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# Contributor(s): Terry Weissman <terry@mozilla.org>
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# Dawn Endico <endico@mozilla.org>
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# Dan Mosedale <dmose@mozilla.org>
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# Joe Robins <jmrobins@tgix.com>
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# Jake <jake@bugzilla.org>
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# J. Paul Reed <preed@sigkill.com>
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# Bradley Baetz <bbaetz@student.usyd.edu.au>
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# Christopher Aillon <christopher@aillon.com>
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# Erik Stambaugh <erik@dasbistro.com>
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# Frédéric Buclin <LpSolit@gmail.com>
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package Bugzilla::Config;
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use strict;
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use base qw(Exporter);
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# Under mod_perl, get this from a .htaccess config variable,
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# and/or default from the current 'real' dir
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# At some stage after this, it may be possible for these dir locations
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# to go into localconfig. localconfig can't be specified in a config file,
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# except possibly with mod_perl. If you move localconfig, you need to change
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# the define here.
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# $libpath is really only for mod_perl; its not yet possible to move the
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# .pms elsewhere.
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# $webdotdir must be in the webtree somewhere. Even if you use a local dot,
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# we output images to there. Also, if $webdot dir is not relative to the
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# bugzilla root directory, you'll need to change showdependencygraph.cgi to
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# set image_url to the correct location.
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# The script should really generate these graphs directly...
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# Note that if $libpath is changed, some stuff will break, notably dependency
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# graphs (since the path will be wrong in the HTML). This will be fixed at
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# some point.
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# constant paths
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our $libpath = '.';
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our $templatedir = "$libpath/template";
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# variable paths
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our $project;
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our $localconfig;
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our $datadir;
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if ($ENV{'PROJECT'} && $ENV{'PROJECT'} =~ /^(\w+)$/) {
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$project = $1;
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$localconfig = "$libpath/localconfig.$project";
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$datadir = "$libpath/data/$project";
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} else {
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$localconfig = "$libpath/localconfig";
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$datadir = "$libpath/data";
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}
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our $attachdir = "$datadir/attachments";
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our $webdotdir = "$datadir/webdot";
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our $extensionsdir = "$libpath/extensions";
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our @parampanels = ();
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# Module stuff
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@Bugzilla::Config::EXPORT = qw(Param);
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# Don't export localvars by default - people should have to explicitly
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# ask for it, as a (probably futile) attempt to stop code using it
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# when it shouldn't
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# ChmodDataFile is here until that stuff all moves out of globals.pl
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# into this file
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@Bugzilla::Config::EXPORT_OK = qw(ChmodDataFile);
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%Bugzilla::Config::EXPORT_TAGS =
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(
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admin => [qw(UpdateParams SetParam WriteParams)],
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db => [qw($db_driver $db_host $db_port $db_name $db_user $db_pass $db_sock)],
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locations => [qw($libpath $localconfig $attachdir $datadir $templatedir
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$webdotdir $project $extensionsdir)],
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params => [qw(@parampanels)],
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);
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Exporter::export_ok_tags('admin', 'db', 'locations', 'params');
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# Bugzilla version
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$Bugzilla::Config::VERSION = "2.23";
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use Safe;
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use vars qw(@param_list);
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# Data::Dumper is required as needed, below. The problem is that then when
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# the code locally sets $Data::Dumper::Foo, this triggers 'used only once'
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# warnings.
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# We can't predeclare another package's vars, though, so just use them
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{
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local $Data::Dumper::Sortkeys;
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local $Data::Dumper::Terse;
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local $Data::Dumper::Indent;
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}
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my %param;
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# INITIALISATION CODE
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# XXX - mod_perl - need to register Apache init handler for params
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sub _load_datafiles {
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# read in localconfig variables
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do $localconfig;
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if (-e "$datadir/params") {
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# Handle reading old param files by munging the symbol table
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# Don't have to do this if we use safe mode, since its evaled
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# in a sandbox where $foo is in the same module as $::foo
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#local *::param = \%param;
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# Note that checksetup.pl sets file permissions on '$datadir/params'
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# Using Safe mode is _not_ a guarantee of safety if someone does
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# manage to write to the file. However, it won't hurt...
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# See bug 165144 for not needing to eval this at all
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my $s = new Safe;
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$s->rdo("$datadir/params");
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die "Error reading $datadir/params: $!" if $!;
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die "Error evaluating $datadir/params: $@" if $@;
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# Now read the param back out from the sandbox
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%param = %{$s->varglob('param')};
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}
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}
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# Load in the datafiles
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_load_datafiles();
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# Stick the params into a hash
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my %params;
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# Load in the param definitions
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foreach my $item ((glob "$libpath/Bugzilla/Config/*.pm")) {
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$item =~ m#/([^/]+)\.pm$#;
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my $module = $1;
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next if ($module eq 'Common');
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require "Bugzilla/Config/$module.pm";
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my @new_param_list = "Bugzilla::Config::$module"->get_param_list();
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foreach my $item (@new_param_list) {
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$params{$item->{'name'}} = $item;
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}
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push(@parampanels, $module);
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push(@param_list, @new_param_list);
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}
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# END INIT CODE
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# Subroutines go here
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sub Param {
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my ($param) = @_;
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# By this stage, the param must be in the hash
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die "Can't find param named $param" unless (exists $params{$param});
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# When module startup code runs (which is does even via -c, when using
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# |use|), we may try to grab params which don't exist yet. This affects
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# tests, so have this as a fallback for the -c case
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return $params{$param}->{default} if ($^C && not exists $param{$param});
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# If we have a value for the param, return it
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return $param{$param} if exists $param{$param};
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# Else error out
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die "No value for param $param (try running checksetup.pl again)";
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}
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sub SetParam {
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my ($name, $value) = @_;
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die "Unknown param $name" unless (exists $params{$name});
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my $entry = $params{$name};
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# sanity check the value
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# XXX - This runs the checks. Which would be good, except that
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# check_shadowdb creates the database as a side effect, and so the
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# checker fails the second time around...
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if ($name ne 'shadowdb' && exists $entry->{'checker'}) {
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my $err = $entry->{'checker'}->($value, $entry);
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die "Param $name is not valid: $err" unless $err eq '';
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}
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$param{$name} = $value;
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}
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sub UpdateParams {
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# --- PARAM CONVERSION CODE ---
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# Note that this isn't particuarly 'clean' in terms of separating
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# the backend code (ie this) from the actual params.
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# We don't care about that, though
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# Old bugzilla versions stored the version number in the params file
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# We don't want it, so get rid of it
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delete $param{'version'};
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# Change from usebrowserinfo to defaultplatform/defaultopsys combo
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if (exists $param{'usebrowserinfo'}) {
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if (!$param{'usebrowserinfo'}) {
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if (!exists $param{'defaultplatform'}) {
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$param{'defaultplatform'} = 'Other';
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}
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if (!exists $param{'defaultopsys'}) {
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$param{'defaultopsys'} = 'Other';
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}
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}
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delete $param{'usebrowserinfo'};
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}
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# Change from a boolean for quips to multi-state
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if (exists $param{'usequip'} && !exists $param{'enablequips'}) {
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$param{'enablequips'} = $param{'usequip'} ? 'on' : 'off';
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delete $param{'usequip'};
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}
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# Change from old product groups to controls for group_control_map
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# 2002-10-14 bug 147275 bugreport@peshkin.net
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if (exists $param{'usebuggroups'} && !exists $param{'makeproductgroups'}) {
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$param{'makeproductgroups'} = $param{'usebuggroups'};
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}
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if (exists $param{'usebuggroupsentry'}
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&& !exists $param{'useentrygroupdefault'}) {
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$param{'useentrygroupdefault'} = $param{'usebuggroupsentry'};
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}
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# Modularise auth code
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if (exists $param{'useLDAP'} && !exists $param{'loginmethod'}) {
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$param{'loginmethod'} = $param{'useLDAP'} ? "LDAP" : "DB";
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}
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# set verify method to whatever loginmethod was
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if (exists $param{'loginmethod'} && !exists $param{'user_verify_class'}) {
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$param{'user_verify_class'} = $param{'loginmethod'};
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delete $param{'loginmethod'};
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}
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# Remove quip-display control from parameters
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# and give it to users via User Settings (Bug 41972)
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if ( exists $param{'enablequips'}
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&& !exists $param{'quip_list_entry_control'})
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{
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my $new_value;
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($param{'enablequips'} eq 'on') && do {$new_value = 'open';};
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($param{'enablequips'} eq 'approved') && do {$new_value = 'moderated';};
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($param{'enablequips'} eq 'frozen') && do {$new_value = 'closed';};
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($param{'enablequips'} eq 'off') && do {$new_value = 'closed';};
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$param{'quip_list_entry_control'} = $new_value;
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delete $param{'enablequips'};
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}
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# --- DEFAULTS FOR NEW PARAMS ---
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foreach my $item (@param_list) {
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my $name = $item->{'name'};
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$param{$name} = $item->{'default'} unless exists $param{$name};
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}
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# --- REMOVE OLD PARAMS ---
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my @oldparams = ();
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# Remove any old params
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foreach my $item (keys %param) {
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if (!grep($_ eq $item, map ($_->{'name'}, @param_list))) {
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require Data::Dumper;
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local $Data::Dumper::Terse = 1;
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local $Data::Dumper::Indent = 0;
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push (@oldparams, [$item, Data::Dumper->Dump([$param{$item}])]);
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delete $param{$item};
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}
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}
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return @oldparams;
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}
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sub WriteParams {
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require Data::Dumper;
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# This only has an affect for Data::Dumper >= 2.12 (ie perl >= 5.8.0)
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# Its just cosmetic, though, so that doesn't matter
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local $Data::Dumper::Sortkeys = 1;
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require File::Temp;
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my ($fh, $tmpname) = File::Temp::tempfile('params.XXXXX',
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DIR => $datadir );
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print $fh (Data::Dumper->Dump([ \%param ], [ '*param' ]))
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|| die "Can't write param file: $!";
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close $fh;
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rename $tmpname, "$datadir/params"
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|| die "Can't rename $tmpname to $datadir/params: $!";
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ChmodDataFile("$datadir/params", 0666);
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}
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# Some files in the data directory must be world readable if and only if
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# we don't have a webserver group. Call this function to do this.
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# This will become a private function once all the datafile handling stuff
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# moves into this package
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# This sub is not perldoc'd for that reason - noone should know about it
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sub ChmodDataFile {
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my ($file, $mask) = @_;
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my $perm = 0770;
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if ((stat($datadir))[2] & 0002) {
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$perm = 0777;
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}
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$perm = $perm & $mask;
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chmod $perm,$file;
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}
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1;
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__END__
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=head1 NAME
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Bugzilla::Config - Configuration parameters for Bugzilla
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=head1 SYNOPSIS
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# Getting parameters
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use Bugzilla::Config;
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my $fooSetting = Param('foo');
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# Administration functions
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use Bugzilla::Config qw(:admin);
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my @removed_params = UpgradeParams();
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SetParam($param, $value);
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WriteParams();
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# Localconfig variables may also be imported
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use Bugzilla::Config qw(:db);
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print "Connecting to $db_name as $db_user with $db_pass\n";
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=head1 DESCRIPTION
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This package contains ways to access Bugzilla configuration parameters.
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=head1 FUNCTIONS
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=head2 Parameters
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Parameters can be set, retrieved, and updated.
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=over 4
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=item C<Param($name)>
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Returns the Param with the specified name. Either a string, or, in the case
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of multiple-choice parameters, an array reference.
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=item C<SetParam($name, $value)>
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Sets the param named $name to $value. Values are checked using the checker
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function for the given param if one exists.
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=item C<UpdateParams()>
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Updates the parameters, by transitioning old params to new formats, setting
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defaults for new params, and removing obsolete ones.
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Any removed params are returned in a list, with elements [$item, $oldvalue]
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where $item is the entry in the param list.
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=item C<WriteParams()>
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Writes the parameters to disk.
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=back
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=over
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=item *
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The new value for the parameter
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=item *
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A reference to the entry in the param list for this parameter
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Functions should return error text, or the empty string if there was no error.
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=back
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