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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This Source Code Form is "Incompatible With Secondary Licenses", as
# defined by the Mozilla Public License, v. 2.0.
package Bugzilla::Install::Requirements;
# NOTE: This package MUST NOT "use" any Bugzilla modules other than
# Bugzilla::Constants, anywhere. We may "use" standard perl modules.
#
# Subroutines may "require" and "import" from modules, but they
# MUST NOT "use."
use 5.14.0;
use strict;
use warnings;
use Bugzilla::Constants;
use Bugzilla::Install::Util qw(install_string bin_loc success
extension_requirement_packages);
use List::Util qw(max);
use Term::ANSIColor;
use CPAN::Meta;
use CPAN::Meta::Prereqs;
use CPAN::Meta::Requirements;
use Module::Metadata;
use parent qw(Exporter);
use autodie;
our @EXPORT = qw(
FEATURE_FILES
load_cpan_meta
check_cpan_requirements
check_cpan_feature
check_all_cpan_features
check_webdotbase
check_font_file
map_files_to_features
);
our $checking_for_indent = 0;
# This is how many *'s are in the top of each "box" message printed
# by checksetup.pl.
use constant TABLE_WIDTH => 71;
# Optional Apache modules that have no Perl component to them.
# If these are installed, Bugzilla has additional functionality.
#
# The keys are the names of the modules, the values are what the module
# is called in the output of "apachectl -t -D DUMP_MODULES".
use constant APACHE_MODULES => {
mod_headers => 'headers_module',
mod_env => 'env_module',
mod_expires => 'expires_module',
mod_rewrite => 'rewrite_module',
mod_version => 'version_module'
};
# These are all of the binaries that we could possibly use that can
# give us info about which Apache modules are installed.
# If we can't use "apachectl", the "httpd" binary itself takes the same
# parameters. Note that on Debian and Gentoo, there is an "apache2ctl",
# but it takes different parameters on each of those two distros, so we
# don't use apache2ctl.
use constant APACHE => qw(apachectl httpd apache2 apache);
# If we don't find any of the above binaries in the normal PATH,
# these are extra places we look.
use constant APACHE_PATH => [qw(
/usr/sbin
/usr/local/sbin
/usr/libexec
/usr/local/libexec
)];
# This maps features to the files that require that feature in order
# to compile. It is used by t/001compile.t and mod_perl.pl.
use constant FEATURE_FILES => (
jsonrpc => ['Bugzilla/WebService/Server/JSONRPC.pm', 'jsonrpc.cgi'],
xmlrpc => ['Bugzilla/WebService/Server/XMLRPC.pm', 'xmlrpc.cgi',
'Bugzilla/WebService.pm', 'Bugzilla/WebService/*.pm'],
csp => ['Bugzilla/CGI/ContentSecurityPolicy.pm'],
psgi => ['app.psgi'],
moving => ['importxml.pl'],
auth_ldap => ['Bugzilla/Auth/Verify/LDAP.pm'],
auth_radius => ['Bugzilla/Auth/Verify/RADIUS.pm'],
documentation => ['docs/makedocs.pl'],
inbound_email => ['email_in.pl'],
jobqueue => ['Bugzilla/Job/*', 'Bugzilla/JobQueue.pm',
'Bugzilla/JobQueue/*', 'jobqueue.pl'],
patch_viewer => ['Bugzilla/Attachment/PatchReader.pm'],
updates => ['Bugzilla/Update.pm'],
markdown => ['Bugzilla/Markdown.pm', 't/100markdown.t'],
memcached => ['Bugzilla/Memcache.pm'],
auth_delegation => ['auth.cgi'],
);
sub load_cpan_meta {
my $dir = bz_locations()->{libpath};
my @meta_json = map { File::Spec->catfile($dir, $_) } qw( MYMETA.json META.json );
my ($file) = grep { -f $_ } @meta_json;
if ($file) {
open my $meta_fh, '<', $file or die "unable to open $file: $!";
my $str = do { local $/ = undef; scalar <$meta_fh> };
# detaint
$str =~ /^(.+)$/s; $str = $1;
close $meta_fh;
return CPAN::Meta->load_json_string($str);
}
else {
ThrowCodeError('cpan_meta_missing');
}
}
sub check_all_cpan_features {
my ($meta, $dirs, $output) = @_;
my %report;
local $checking_for_indent = 2;
print "\nOptional features:\n" if $output;
my @features = sort { $a->identifier cmp $b->identifier } $meta->features;
foreach my $feature (@features) {
next if $feature->identifier eq 'features';
printf "Feature '%s': %s\n", $feature->identifier, $feature->description if $output;
my $result = check_cpan_feature($feature, $dirs, $output);
print "\n" if $output;
$report{$feature->identifier} = {
description => $feature->description,
result => $result,
};
}
print install_string('all_optional_features_require'), "\n" if $output;
my $features = check_cpan_feature($meta->feature('features'), $dirs, $output);
print "\n" if $output;
$report{features} = {
description => $meta->feature('features')->description,
result => $features,
};
return \%report;
}
sub check_cpan_feature {
my ($feature, $dirs, $output) = @_;
return _check_prereqs($feature->prereqs, $dirs, $output);
}
sub check_cpan_requirements {
my ($meta, $dirs, $output) = @_;
my $result = _check_prereqs($meta->effective_prereqs, $dirs, $output);
print colored(install_string('installation_failed'), COLOR_ERROR), "\n" if !$result->{ok} && $output;
return $result;
}
sub _check_prereqs {
my ($prereqs, $dirs, $output) = @_;
$dirs //= \@INC;
my $reqs = $prereqs->merged_requirements(['configure', 'runtime'], ['requires']);
my @found;
my @missing;
foreach my $module (sort $reqs->required_modules) {
my $ok = _check_module($reqs, $module, $dirs, $output);
if ($ok) {
push @found, $module;
}
else {
push @missing, $module;
}
}
return { ok => (@missing == 0), found => \@found, missing => \@missing };
}
sub _check_module {
my ($reqs, $module, $dirs, $output) = @_;
my $required_version = $reqs->requirements_for_module($module);
if ($module eq 'perl') {
my $ok = $reqs->accepts_module($module, $]);
_checking_for({package => "perl", found => $], wanted => $required_version, ok => $ok}) if $output;
return $ok;
} else {
my $metadata = Module::Metadata->new_from_module($module, inc => $dirs);
my $version = eval { $metadata->version };
my $ok = $metadata && $version && $reqs->accepts_module($module, $version || 0);
_checking_for({package => $module, $version ? ( found => $version ) : (), wanted => $required_version, ok => $ok}) if $output;
return $ok;
}
}
sub _get_apachectl {
foreach my $bin_name (APACHE) {
my $bin = bin_loc($bin_name);
return $bin if $bin;
}
# Try again with a possibly different path.
foreach my $bin_name (APACHE) {
my $bin = bin_loc($bin_name, APACHE_PATH);
return $bin if $bin;
}
return undef;
}
sub check_webdotbase {
my ($output) = @_;
my $webdotbase = Bugzilla->localconfig->{'webdotbase'};
return 1 if $webdotbase =~ /^https?:/;
my $return;
$return = 1 if -x $webdotbase;
if ($output) {
_checking_for({ package => 'GraphViz', ok => $return });
}
if (!$return) {
print install_string('bad_executable', { bin => $webdotbase }), "\n";
}
my $webdotdir = bz_locations()->{'webdotdir'};
# Check .htaccess allows access to generated images
if (-e "$webdotdir/.htaccess") {
my $htaccess = new IO::File("$webdotdir/.htaccess", 'r')
|| die "$webdotdir/.htaccess: " . $!;
if (!grep(/ \\\.png\$/, $htaccess->getlines)) {
print STDERR install_string('webdot_bad_htaccess',
{ dir => $webdotdir }), "\n";
}
$htaccess->close;
}
return $return;
}
sub check_font_file {
my ($output) = @_;
my $font_file = Bugzilla->localconfig->{'font_file'};
my $readable;
$readable = 1 if -r $font_file;
my $ttf;
$ttf = 1 if $font_file =~ /\.(ttf|otf)$/;
if ($output) {
_checking_for({ package => 'Font file', ok => $readable && $ttf});
}
if (!$readable) {
print install_string('bad_font_file', { file => $font_file }), "\n";
}
elsif (!$ttf) {
print install_string('bad_font_file_name', { file => $font_file }), "\n";
}
return $readable && $ttf;
}
sub _checking_for {
my ($params) = @_;
my ($package, $ok, $wanted, $blacklisted, $found) =
@$params{qw(package ok wanted blacklisted found)};
my $ok_string = $ok ? install_string('module_ok') : '';
# If we're actually checking versions (like for Perl modules), then
# we have some rather complex logic to determine what we want to
# show. If we're not checking versions (like for GraphViz) we just
# show "ok" or "not found".
if (exists $params->{found}) {
my $found_string;
# We do a string compare in case it's non-numeric. We make sure
# it's not a version object as negative versions are forbidden.
if ($found && !ref($found) && $found eq '-1') {
$found_string = install_string('module_not_found');
}
elsif ($found) {
$found_string = install_string('module_found', { ver => $found });
}
else {
$found_string = install_string('module_unknown_version');
}
$ok_string = $ok ? "$ok_string: $found_string" : $found_string;
}
elsif (!$ok) {
$ok_string = install_string('module_not_found');
}
my $black_string = $blacklisted ? install_string('blacklisted') : '';
my $want_string = $wanted ? "$wanted" : install_string('any');
my $str = sprintf "%s %20s %-11s $ok_string $black_string\n",
( ' ' x $checking_for_indent ) . install_string('checking_for'),
$package, "($want_string)";
print $ok ? $str : colored($str, COLOR_ERROR);
}
# This does a reverse mapping for FEATURE_FILES.
sub map_files_to_features {
my %features = FEATURE_FILES;
my %files;
foreach my $feature (keys %features) {
my @my_files = @{ $features{$feature} };
foreach my $pattern (@my_files) {
foreach my $file (glob $pattern) {
$files{$file} = $feature;
}
}
}
return \%files;
}
1;
__END__
=head1 NAME
Bugzilla::Install::Requirements - Functions and variables dealing
with Bugzilla's perl-module requirements.
=head1 DESCRIPTION
This module is used primarily by C<checksetup.pl> to determine whether
or not all of Bugzilla's prerequisites are installed. (That is, all the
perl modules it requires.)
=head1 CONSTANTS
=over
=item C<FEATURE_FILES>
A hashref that describes what files should only be compiled if a certain
feature is enabled. The feature is the key, and the values are arrayrefs
of file names (which are passed to C<glob>, so shell patterns work).
=back
=head1 SUBROUTINES
=over 4
=item C<check_cpan_requirements>
=over
=item B<Description>
This checks what required perl modules are installed, like
C<checksetup.pl> does.
=item B<Params>
=over
=item C<$meta> - A C<CPAN::Meta> object.
=item C<$dirs> - the include dirs to search for modules, defaults to @INC.
=item C<$output> - C<true> if you want the function to print out information
about what it's doing, and the versions of everything installed.
=back
=item B<Returns>
A hashref containing these values:
=over
=item C<ok> - if all the requirements are met, this is true.
=item C<found> - an arrayref of found modules
=item C<missing> - an arrayref of missing modules
=back
=back
=item C<check_cpan_feature>
=over
=item B<Description>
This checks that the optional Perl modules required for a feature are installed.
=item B<Params>
=over
=item C<$feature> - A C<CPAN::Meta::Feature> object.
=item C<$dirs> - the include dirs to search for modules, defaults to @INC.
=item C<$output> - C<true> if you want the function to print out information about what it's doing, and the versions of everything installed.
=back
=item B<Returns>
A hashref containing these values:
=over
=item C<ok> - if all the requirements are met, this is true.
=item C<found> - an arrayref of found modules
=item C<missing> - an arrayref of missing modules
=back
=item C<check_all_cpan_features>
=over
=item B<Description>
This checks which optional Perl modules are currently installed which can enable optional features.
=item B<Params>
=over
=item C<$meta> - A C<CPAN::Meta> object.
=item C<$dirs> - the include dirs to search for modules, defaults to @INC.
=item C<$output> - C<true> if you want the function to print out information
about what it's doing, and the versions of everything installed.
=back
=item B<Returns>
A hashref keyed on the feature name. The values
are hashrefs containing C<description> and C<result> keys.
C<description> is the English description of the feature.
C<result> is a hashref in the same format as the return value of C<check_cpan_requirements()>,
described previously.
=back
=item C<check_webdotbase($output)>
Description: Checks if the graphviz binary specified in the
C<webdotbase> parameter is a valid binary, or a valid URL.
Params: C<$output> - C<$true> if you want the function to
print out information about what it's doing.
Returns: C<1> if the check was successful, C<0> otherwise.
=item C<check_font_file($output)>
Description: Checks if the font file specified in the C<font_type> parameter
is a valid-looking font file.
Params: C<$output> - C<$true> if you want the function to
print out information about what it's doing.
Returns: C<1> if the check was successful, C<0> otherwise.
=item C<map_files_to_features>
Returns a hashref where file names are the keys and the value is the feature
that must be enabled in order to compile that file.
=item C<load_cpan_meta>
Load MYMETA.json or META.json from the bugzilla directory, and a return a L<CPAN::Meta> object.
=back
=back
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