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|
package mirror;
use diagnostics;
use strict;
use feature 'state';
use common;
use log;
=head1 SYNOPSYS
B<mirror> enables to manage Mageia distribution mirrors
=head1 Functions
=over
=cut
my %land2tzs = (
N_("Australia") => [ 'Australia/Sydney' ],
N_("Austria") => [ 'Europe/Vienna', 'Europe/Brussels', 'Europe/Berlin' ],
N_("Belgium") => [ 'Europe/Brussels', 'Europe/Paris', 'Europe/Berlin' ],
N_("Brazil") => [ 'America/Sao_Paulo' ],
N_("Canada") => [ 'Canada/Atlantic', 'Canada/Eastern' ],
N_("Costa Rica") => [ 'America/Costa_Rica' ],
N_("Czech Republic") => [ 'Europe/Prague', 'Europe/Berlin' ],
N_("Denmark") => [ 'Europe/Copenhagen', 'Europe/Berlin' ],
N_("Estonia") => [ 'Europe/Tallinn', 'Europe/Helsinki' ],
N_("Finland") => [ 'Europe/Helsinki', 'Europe/Tallinn' ],
N_("France") => [ 'Europe/Paris', 'Europe/Brussels', 'Europe/Berlin' ],
N_("Germany") => [ 'Europe/Berlin', 'Europe/Prague' ],
N_("Greece") => [ 'Europe/Athens', 'Europe/Prague' ],
N_("Hungary") => [ 'Europe/Budapest' ],
N_("Ireland") => [ 'Europe/Dublin', 'Europe/London' ],
N_("Israel") => [ 'Asia/Tel_Aviv' ],
N_("Italy") => [ 'Europe/Rome', 'Europe/Brussels', 'Europe/Paris' ],
N_("Japan") => [ 'Asia/Tokyo', 'Asia/Seoul' ],
N_("Netherlands") => [ 'Europe/Amsterdam', 'Europe/Brussels', 'Europe/Berlin' ],
N_("New Zealand") => [ 'Pacific/Auckland' ],
N_("Norway") => [ 'Europe/Oslo', 'Europe/Stockholm' ],
N_("Poland") => [ 'Europe/Warsaw' ],
N_("Portugal") => [ 'Europe/Lisbon', 'Europe/Madrid' ],
N_("Russia") => [ 'Europe/Moscow', ],
N_("Slovakia") => [ 'Europe/Bratislava' ],
N_("South Africa") => [ 'Africa/Johannesburg' ],
N_("Spain") => [ 'Europe/Madrid', 'Europe/Lisbon' ],
N_("Sweden") => [ 'Europe/Stockholm', 'Europe/Oslo' ],
N_("Switzerland") => [ 'Europe/Zurich', 'Europe/Berlin', 'Europe/Brussels' ],
N_("Taiwan") => [ 'Asia/Taipei', 'Asia/Seoul' ],
N_("Thailand") => [ 'Asia/Bangkok', 'Asia/Seoul' ],
N_("United States") => [ 'America/New_York', 'Canada/Atlantic', 'Asia/Tokyo', 'Australia/Sydney', 'Europe/Paris' ],
);
=item mirror2text($mirror)
Returns a displayable string from a mirror struct
=cut
sub mirror2text {
my ($mirror) = @_;
translate($mirror->{country}) . '|' . $mirror->{host} . ($mirror->{method} ? " ($mirror->{method})" : '');
}
=item register_downloader($func)
Sets a downloader program
=cut
my $downloader;
sub register_downloader {
my ($func) = @_;
$downloader = $func;
}
sub _mirrors_raw_install {
my ($list) = @_;
require install::http;
my $f = install::http::getFile($list, "strict-certificate-check" => 1) or die "mirror list not found";
local $SIG{ALRM} = sub { die "timeout" };
alarm 60;
log::l("using mirror list $list");
my @lines;
push @lines, $_ while <$f>;
alarm 0;
@lines;
}
sub _mirrors_raw_standalone {
my ($list) = @_;
my @lines;
if (ref($downloader)) {
@lines = $downloader->($list);
@lines or die "mirror list not found";
} else {
die "Missing download callback";
}
@lines;
}
=item mirrors_raw($product_id)
Returns a list of mirrors hash refs from http://mirrors.mageia.org
Note that in standalone mode, one has to actually use register_downloader()
first in order to provide a downloader callback.
=cut
sub mirrors_raw {
my ($product_id) = @_;
#- contact the following URL to retrieve the list of mirrors.
#- http://wiki.mageia.org/en/Product_id
my $type = lc($product_id->{type}); $type =~ s/\s//g;
#- FIXME! (blino) we use use https here
my $list = "http://mirrors.mageia.org/api/$type.$product_id->{version}.$product_id->{arch}.list?product=$product_id->{product}";
log::explanations("trying mirror list from $list");
my @lines = $::isInstall ? _mirrors_raw_install($list) : _mirrors_raw_standalone($list);
map { common::parse_LDAP_namespace_structure(chomp_($_)) } @lines;
}
=item list($product_id, $type)
Returns a list of mirrors hash refs as returned by mirrors_raw() but filters it.
One can select the type of mirrors ('distrib', 'updates', ...) or 'all'
=cut
sub list {
my ($product_id, $type) = @_;
our @mirrors_raw;
if (!@mirrors_raw) {
@mirrors_raw = eval { mirrors_raw($product_id) };
if (my $err = $@) {
log::explanations("failed to download mirror list");
die $err;
}
@mirrors_raw or log::explanations("empty mirror list"), return;
}
my @mirrors = grep {
($_->{method}, $_->{host}, $_->{dir}) = $_->{url} =~ m!^(ftp|http)://(.*?)(/.*)!;
$_->{method} && (member($type, 'all', $_->{type}));
} @mirrors_raw or log::explanations("no mirrors of type $type"), return;
@mirrors && \@mirrors;
}
=item nearest($timezone, $mirrors)
Randomly returns one of the nearest mirror
=cut
sub nearest {
my ($timezone, $mirrors) = @_;
my (@country, @zone);
foreach my $mirror (@$mirrors) {
my @tzs = @{$land2tzs{$mirror->{country}} || []};
eval { push @{$country[find_index { $_ eq $timezone } @tzs]}, $mirror };
eval { push @{$zone[find_index { ((split '/')[0] eq (split '/', $timezone)[0]) } @tzs]}, $mirror };
}
my @l = @country ? @country : @zone;
shift @l while !$l[0] && @l;
my @possible = @l ? ((@{$l[0]}) x 2, @{$l[1] || []}) : @$mirrors;
$possible[rand @possible];
}
=back
=cut
1;
|
