📁 PHP Dosya Yöneticisi
/
/
usr
/
share
/
perl5
/
vendor_perl
/
WWW
/
RobotRules
📝
AnyDBM_File.pm
← Geri Dön
package WWW::RobotRules::AnyDBM_File; require WWW::RobotRules; @ISA = qw(WWW::RobotRules); $VERSION = "6.00"; use Carp (); use AnyDBM_File; use Fcntl; use strict; =head1 NAME WWW::RobotRules::AnyDBM_File - Persistent RobotRules =head1 SYNOPSIS require WWW::RobotRules::AnyDBM_File; require LWP::RobotUA; # Create a robot useragent that uses a diskcaching RobotRules my $rules = WWW::RobotRules::AnyDBM_File->new( 'my-robot/1.0', 'cachefile' ); my $ua = WWW::RobotUA->new( 'my-robot/1.0', 'me@foo.com', $rules ); # Then just use $ua as usual $res = $ua->request($req); =head1 DESCRIPTION This is a subclass of I<WWW::RobotRules> that uses the AnyDBM_File package to implement persistent diskcaching of F<robots.txt> and host visit information. The constructor (the new() method) takes an extra argument specifying the name of the DBM file to use. If the DBM file already exists, then you can specify undef as agent name as the name can be obtained from the DBM database. =cut sub new { my ($class, $ua, $file) = @_; Carp::croak('WWW::RobotRules::AnyDBM_File filename required') unless $file; my $self = bless { }, $class; $self->{'filename'} = $file; tie %{$self->{'dbm'}}, 'AnyDBM_File', $file, O_CREAT|O_RDWR, 0640 or Carp::croak("Can't open $file: $!"); if ($ua) { $self->agent($ua); } else { # Try to obtain name from DBM file $ua = $self->{'dbm'}{"|ua-name|"}; Carp::croak("No agent name specified") unless $ua; } $self; } sub agent { my($self, $newname) = @_; my $old = $self->{'dbm'}{"|ua-name|"}; if (defined $newname) { $newname =~ s!/?\s*\d+.\d+\s*$!!; # loose version unless ($old && $old eq $newname) { # Old info is now stale. my $file = $self->{'filename'}; untie %{$self->{'dbm'}}; tie %{$self->{'dbm'}}, 'AnyDBM_File', $file, O_TRUNC|O_RDWR, 0640; %{$self->{'dbm'}} = (); $self->{'dbm'}{"|ua-name|"} = $newname; } } $old; } sub no_visits { my ($self, $netloc) = @_; my $t = $self->{'dbm'}{"$netloc|vis"}; return 0 unless $t; (split(/;\s*/, $t))[0]; } sub last_visit { my ($self, $netloc) = @_; my $t = $self->{'dbm'}{"$netloc|vis"}; return undef unless $t; (split(/;\s*/, $t))[1]; } sub fresh_until { my ($self, $netloc, $fresh) = @_; my $old = $self->{'dbm'}{"$netloc|exp"}; if ($old) { $old =~ s/;.*//; # remove cleartext } if (defined $fresh) { $fresh .= "; " . localtime($fresh); $self->{'dbm'}{"$netloc|exp"} = $fresh; } $old; } sub visit { my($self, $netloc, $time) = @_; $time ||= time; my $count = 0; my $old = $self->{'dbm'}{"$netloc|vis"}; if ($old) { my $last; ($count,$last) = split(/;\s*/, $old); $time = $last if $last > $time; } $count++; $self->{'dbm'}{"$netloc|vis"} = "$count; $time; " . localtime($time); } sub push_rules { my($self, $netloc, @rules) = @_; my $cnt = 1; $cnt++ while $self->{'dbm'}{"$netloc|r$cnt"}; foreach (@rules) { $self->{'dbm'}{"$netloc|r$cnt"} = $_; $cnt++; } } sub clear_rules { my($self, $netloc) = @_; my $cnt = 1; while ($self->{'dbm'}{"$netloc|r$cnt"}) { delete $self->{'dbm'}{"$netloc|r$cnt"}; $cnt++; } } sub rules { my($self, $netloc) = @_; my @rules = (); my $cnt = 1; while (1) { my $rule = $self->{'dbm'}{"$netloc|r$cnt"}; last unless $rule; push(@rules, $rule); $cnt++; } @rules; } sub dump { } 1; =head1 SEE ALSO L<WWW::RobotRules>, L<LWP::RobotUA> =head1 AUTHORS Hakan Ardo E<lt>hakan@munin.ub2.lu.se>, Gisle Aas E<lt>aas@sn.no> =cut
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🔐 Dosya İzinleri (chmod)
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777
755
644
600
777
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755
= Sahip tam, diğerleri okur/çalıştırır
644
= Sahip okur/yazar, diğerleri okur
600
= Sadece sahip okur/yazar
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