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ahitrov@rambler.ru |
package Contenido::Cluster::Storage; |
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use strict; |
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use Contenido::Globals; |
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use HTTP::Async; |
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use HTTP::Request; |
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use HTTP::Headers; |
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use LWP::UserAgent; |
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use String::CRC32; |
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use Data::Dumper; |
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sub new { |
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my $proto = shift; |
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my $class = ref($proto) || $proto; |
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my %opts = @_; |
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my $self = {}; |
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$self->{sql} = $opts{sql} || die $log->error("You MUST pass sql object"); |
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$self->{users} = $opts{users} || die $log->error("You MUST pass users dir"); |
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$self->{backend} = $opts{backend} || die $log->error("You MUST pass backend host"); |
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$self->{is_async} = $opts{is_async} ? 1 : 0; |
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$self->{login} = undef; |
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$self->{temp} = $opts{temp}; |
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bless ($self, $class); |
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return $self; |
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} |
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sub start { |
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my $self = shift; |
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my %opts = @_; |
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$self->{is_async} = $opts{is_async} || $self->{is_async} ? 1 : 0; |
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$self->{login} = $opts{login} || die $log->error("You MUST pass user login"); |
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$self->{result} = 1; |
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if ($self->{is_async} && !$self->{async}) { |
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$self->{async} = new HTTP::Async(); |
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$self->{async}->slots(1000); |
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$self->{async}->timeout(900); |
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$self->{async}->max_request_time(1800); |
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} |
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} |
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sub stop { |
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my $self = shift; |
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$self->{login} = undef; |
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return $self->_stop_async(); |
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} |
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sub login { |
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my $self = shift; |
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return $self->{login} || die $log->error("You MUST start cluster session before use"); |
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} |
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sub async { |
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my $self = shift; |
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return $self->{async} || die $log->error("You MUST start cluster session before use"); |
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} |
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sub cluster { |
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my $self = shift; |
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unless ($request->{cluster}) { |
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my $cursor = $self->{sql}->prepare("select bgroup, ip, host, status from backend where status = 0 order by id"); |
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$cursor->execute(); |
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while (my ($group, $ip, $host, $status) = $cursor->fetchrow_array()) { |
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push(@{$request->{cluster}->{by_group}->[$group]}, [$ip, $host, $status]); |
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} |
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$cursor->finish(); |
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$cursor = $self->{sql}->prepare("select bgroup, hash from backend_virtual order by id"); |
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$cursor->execute(); |
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while (my ($group, $key) = $cursor->fetchrow_array()) { |
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my ($from, $to) = map { hex } split("-", $key); |
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$to ||= $from; |
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foreach my $hash ($from..$to) { |
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$request->{cluster}->{by_key}->[$hash] = $group; |
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push(@{$request->{cluster}->{by_cluster}->[$group]}, $hash); |
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} |
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} |
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$cursor->finish(); |
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$cursor = $self->{sql}->prepare("select bgroup, hash from backend_relocate order by id"); |
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$cursor->execute(); |
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while (my ($group, $key) = $cursor->fetchrow_array()) { |
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my ($from, $to) = map { hex } split("-", $key); |
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$to ||= $from; |
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foreach my $hash ($from..$to) { |
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$request->{cluster}->{by_relocate}->[$hash] = $group; |
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} |
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} |
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$cursor->finish(); |
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} |
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return $request->{cluster}; |
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} |
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sub get_friend { |
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my $self = shift; |
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my $force = shift || 0; |
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my @host = (); |
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if ($self->cluster) { |
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my $hash = hex($self->get_full_hash); |
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my $group = $self->cluster->{by_group}->[$self->cluster->{by_key}->[$hash]] || return (); |
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foreach my $host (@{$group}) { |
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if (($self->{backend} ne $host->[1]) || $force) { |
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push(@host, $host->[1]); |
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} |
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} |
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if ($self->is_locked) { |
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my $group = $self->cluster->{by_group}->[$self->cluster->{by_relocate}->[$hash]]; |
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foreach my $host (@{$group}) { |
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if (($self->{backend} ne $host->[1]) || $force) { |
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push(@host, $host->[1]); |
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} |
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} |
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} |
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} |
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return @host; |
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} |
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sub is_friend { |
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my $self = shift; |
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if ($self->cluster) { |
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my $group = $self->cluster->{by_group}->[$self->cluster->{by_key}->[hex($self->get_full_hash(shift))]] || return (); |
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foreach my $host (@{$group}) { |
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if ($self->{backend} eq $host->[1]) { |
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return 1; |
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} |
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} |
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} |
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return 0; |
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} |
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sub is_same_cluster { |
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my $self = shift; |
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my $to_login = shift || return 0; |
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return $self->cluster->{by_key}->[hex($self->get_full_hash)] == $self->cluster->{by_key}->[hex($self->get_full_hash($to_login))]; |
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} |
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sub is_locked { |
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my $self = shift; |
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if ($self->cluster) { |
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return defined($self->cluster->{by_relocate}->[hex($self->get_full_hash())]) ? 1 : 0; |
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} |
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return 1; |
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} |
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sub put { |
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my ($self, $url) = @_; |
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die $log->error("wrong put usage") unless ($url); |
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$self->_store_file($url); |
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} |
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sub relocate { |
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my ($self, $url, $to_login, $to_url) = @_; |
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die $log->error("wrong relocate usage") unless ($url || $to_login || $to_url); |
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unless ($self->is_friend) { |
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$log->error("not home cluster"); |
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return 0; |
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} |
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$self->_store_file($url, $to_login, $to_url); |
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} |
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sub relocate_dir { |
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my ($self, $url, $to_login, $to_url) = @_; |
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die $log->error("wrong relocate_dir usage") unless ($url && $to_login && $to_url); |
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unless ($self->is_friend) { |
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$log->error("not home cluster"); |
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return 0; |
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} |
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my $dir = join('/', $$self->{users}, $self->get_hash, $url); |
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opendir(D, $dir); |
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foreach my $file (grep(!/^[\.]+$/, readdir(D))) { |
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$self->relocate(join("/", $url, $file), $to_login, join("/", $to_url, $file)); |
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} |
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closedir(D); |
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} |
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sub move { |
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my ($self, $url, $to_login, $to_url) = @_; |
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die $log->error("wrong move usage") unless ($url || $to_login || $to_url); |
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return $self->_transfer_file(1, $url, $to_login, $to_url); |
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} |
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sub copy { |
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my ($self, $url, $to_login, $to_url) = @_; |
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die $log->error("wrong copy usage") unless ($url || $to_login || $to_url); |
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return $self->_transfer_file(0, $url, $to_login, $to_url); |
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} |
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sub delete { |
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my ($self, $url, $recursive) = @_; |
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die $log->error("wrong delete usage") unless ($url); |
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my $req_file = join('/', "protected", $self->get_hash, $url); |
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foreach my $host ($self->get_friend) { |
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my $req_url = 'http://'.join('/', $host, $req_file); |
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my $req = HTTP::Request->new( |
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DELETE => $req_url, |
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); |
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if ($recursive) { |
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$req->header('Depth' => 'infinity'); |
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} |
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$self->_send_request($req, "DELETE $req_url"); |
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} |
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} |
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sub lock { |
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my $self = shift; |
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return $self->_lock_request(1); |
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} |
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sub unlock { |
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my $self = shift; |
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return $self->_lock_request(0); |
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} |
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sub acl { |
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my ($self, $url, $is_public) = @_; |
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die $log->error("wrong acl usage") unless ($url); |
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my $req_file = join('/', "protected", $self->get_hash, $url); |
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foreach my $host ($self->get_friend) { |
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my $req_url = 'http://'.join('/', $host, $req_file); |
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my $req = HTTP::Request->new( |
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ACL => $req_url, |
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); |
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$req->header('X-Access' => $is_public ? 775 : 770 ); |
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$self->_send_request($req, "ACL $req_url"); |
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} |
| 285 |
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} |
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sub _store_file { |
| 288 |
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my ($self, $url, $to_login, $to_url) = @_; |
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| 290 |
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my $file = join('/', $self->{temp} && !$self->is_friend ? $self->{temp} : $self->{users}, $self->get_hash, $url); |
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| 292 |
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if (open($Contenido::Cluster::Storage::fh, $file)) { |
| 293 |
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if (my @host = $self->get_friend) { |
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| 295 |
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my $req_file = join('/', "public", $to_login && $to_url ? ($self->get_hash($to_login), $to_url) : ($self->get_hash, $url)); |
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| 297 |
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if ($self->{is_async} && $self->async) { |
| 298 |
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| 299 |
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my $content; |
| 300 |
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while (read($Contenido::Cluster::Storage::fh, my $buf, 1024*1024)) { |
| 301 |
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$content .= $buf; |
| 302 |
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} |
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| 304 |
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foreach my $host (@host) { |
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| 306 |
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my $req_url = 'http://'.join('/', $host, $req_file); |
| 307 |
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my $req = HTTP::Request->new( |
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PUT => $req_url, |
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); |
| 310 |
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$req->content_length((stat($file))[7]); |
| 311 |
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$req->content_ref(\$content); |
| 312 |
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| 313 |
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$self->_send_request($req, "PUT $file to $req_url"); |
| 314 |
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| 315 |
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} |
| 316 |
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| 317 |
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} else { |
| 318 |
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| 319 |
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foreach my $host (@host) { |
| 320 |
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seek($Contenido::Cluster::Storage::fh, 0, 0); |
| 321 |
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| 322 |
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my $req_url = 'http://'.join('/', $host, $req_file); |
| 323 |
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my $req = HTTP::Request->new( |
| 324 |
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PUT => $req_url, |
| 325 |
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undef, |
| 326 |
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sub { |
| 327 |
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read($Contenido::Cluster::Storage::fh, my $buf, 1024*1024); |
| 328 |
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return $buf; |
| 329 |
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} |
| 330 |
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); |
| 331 |
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$req->content_length((stat($file))[7]); |
| 332 |
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| 333 |
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$self->_send_request($req, "PUT $file to $req_url"); |
| 334 |
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} |
| 335 |
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} |
| 336 |
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| 337 |
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} |
| 338 |
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close($Contenido::Cluster::Storage::fh); |
| 339 |
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} |
| 340 |
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} |
| 341 |
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| 342 |
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sub _send_request { |
| 343 |
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my $self = shift; |
| 344 |
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my $req = shift || die $log->error("no request passed"); |
| 345 |
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my $msg = shift || "LWP"; |
| 346 |
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| 347 |
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$log->debug( $msg." ..." ); |
| 348 |
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| 349 |
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if ($self->{is_async}) { |
| 350 |
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| 351 |
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$self->async->add($req); |
| 352 |
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$self->async->poke(); |
| 353 |
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| 354 |
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} else { |
| 355 |
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| 356 |
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my $res = new LWP::UserAgent->request($req); |
| 357 |
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unless ($res->is_success) { |
| 358 |
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$log->error( $msg." failed - ".$res->code ); |
| 359 |
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$self->{result} = 0; |
| 360 |
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} |
| 361 |
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| 362 |
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} |
| 363 |
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} |
| 364 |
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| 365 |
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sub _lock_request { |
| 366 |
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my $self = shift; |
| 367 |
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my $mode = shift || 0; |
| 368 |
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$mode = $mode ? "LOCK" : "UNLOCK"; |
| 369 |
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| 370 |
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my $req_file = join('/', "protected", $self->login); |
| 371 |
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| 372 |
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foreach my $host ($self->get_friend(1)) { |
| 373 |
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| 374 |
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my $req_url = 'http://'.join('/', $host, $req_file); |
| 375 |
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my $req = HTTP::Request->new( |
| 376 |
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$mode => $req_url, |
| 377 |
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); |
| 378 |
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$req->header('X-Hash' => $self->get_full_hash); |
| 379 |
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| 380 |
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$self->_send_request($req, "$mode $req_url"); |
| 381 |
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| 382 |
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} |
| 383 |
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| 384 |
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return $self->_stop_async(); |
| 385 |
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} |
| 386 |
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| 387 |
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sub _transfer_file { |
| 388 |
|
|
my $self = shift; |
| 389 |
|
|
my $mode = shift || 0; |
| 390 |
|
|
$mode = $mode ? "MOVE" : "COPY"; |
| 391 |
|
|
|
| 392 |
|
|
my ($url, $to_login, $to_url) = @_; |
| 393 |
|
|
|
| 394 |
|
|
unless ($self->is_same_cluster($to_login)) { |
| 395 |
|
|
$log->error("users not on same cluster"); |
| 396 |
|
|
return 0; |
| 397 |
|
|
} |
| 398 |
|
|
|
| 399 |
|
|
my $req_file = join('/', "protected", $self->get_hash, $url); |
| 400 |
|
|
my $to_req_file = join('/', "protected", $self->get_hash($to_login), $to_url); |
| 401 |
|
|
|
| 402 |
|
|
foreach my $host ($self->get_friend) { |
| 403 |
|
|
|
| 404 |
|
|
my $req_url = 'http://'.join('/', $host, $req_file); |
| 405 |
|
|
my $to_req_url = 'http://'.join('/', $host, $to_req_file); |
| 406 |
|
|
my $req = HTTP::Request->new( |
| 407 |
|
|
$mode => $req_url, |
| 408 |
|
|
); |
| 409 |
|
|
$req->header('Destination' => $to_req_url); |
| 410 |
|
|
|
| 411 |
|
|
$self->_send_request($req, "$mode $req_url to $to_req_url"); |
| 412 |
|
|
|
| 413 |
|
|
} |
| 414 |
|
|
} |
| 415 |
|
|
|
| 416 |
|
|
sub _stop_async { |
| 417 |
|
|
my $self = shift; |
| 418 |
|
|
|
| 419 |
|
|
if ($self->{is_async}) { |
| 420 |
|
|
while ( my $res = $self->{async}->wait_for_next_response ) { |
| 421 |
|
|
if (!$res->is_success() && ($res->code ne '405')) { |
| 422 |
|
|
$self->{result} = 0; |
| 423 |
|
|
$log->error("async failed - ".$res->code); |
| 424 |
|
|
} |
| 425 |
|
|
} |
| 426 |
|
|
} |
| 427 |
|
|
|
| 428 |
|
|
return $self->{result}; |
| 429 |
|
|
} |
| 430 |
|
|
|
| 431 |
|
|
sub get_hash { |
| 432 |
|
|
my $self = shift; |
| 433 |
|
|
my $login = shift || $self->login; |
| 434 |
|
|
|
| 435 |
|
|
my $hash = substr(sprintf("%X", crc32($login)), -4, 4); |
| 436 |
|
|
return substr($hash, -4, 2).'/'. substr($hash, -2, 2) || '00/00'; |
| 437 |
|
|
|
| 438 |
|
|
} |
| 439 |
|
|
|
| 440 |
|
|
sub get_full_hash { |
| 441 |
|
|
my $self = shift; |
| 442 |
|
|
my $login = shift || $self->login; |
| 443 |
|
|
|
| 444 |
|
|
return substr(sprintf("%X", crc32($login)), -4, 4) || '0000' |
| 445 |
|
|
} |
| 446 |
|
|
|
| 447 |
|
|
|
| 448 |
|
|
|
| 449 |
|
|
|
| 450 |
|
|
|
| 451 |
|
|
|
| 452 |
|
|
1; |