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libwww-perl-5.836
⭐ Starred 204 / WWW::RobotRules::AnyDBM_File
Security Advisories (3)
CPANSA-libwww-perl-2017-01 (2017-11-06)

LWP::Protocol::file can open existent file from file:// scheme. However, current version of LWP uses open FILEHANDLE,EXPR and it has ability to execute arbitrary command

CVE-2011-0633 (2011-01-20)

The Net::HTTPS module in libwww-perl (LWP) before 6.00, as used in WWW::Mechanize, LWP::UserAgent, and other products, when running in environments that do not set the If-SSL-Cert-Subject header, does not enable full validation of SSL certificates by default, which allows remote attackers to spoof servers via man-in-the-middle (MITM) attacks involving hostnames that are not properly validated.

CVE-2026-8368 (2026-05-12)

LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects. On a 3xx response, the redirect handler strips only Host and Cookie before issuing the follow-up request. Caller-supplied Authorization and Proxy-Authorization headers are sent unchanged to the redirect target, including across scheme, host, or port changes. A redirect to an attacker controlled host therefore discloses the caller's credentials to that host.

NAME

WWW::RobotRules::AnyDBM_File - Persistent RobotRules

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);

DESCRIPTION

This is a subclass of WWW::RobotRules that uses the AnyDBM_File package to implement persistent diskcaching of 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.

SEE ALSO

WWW::RobotRules, LWP::RobotUA

AUTHORS

Hakan Ardo <hakan@munin.ub2.lu.se>, Gisle Aas <aas@sn.no>