Mail::SPF::Request
Mail::SPF::Request(3)User Contributed Perl DocumentationMail::SPF::Request(3)
NAME
Mail::SPF::Request - SPF request class
SYNOPSIS
use Mail::SPF;
my $request = Mail::SPF::Request->new(
versions => [1, 2], # optional
scope => ’mfrom’, # or ’helo’, ’pra’
identity => ’fred@example.com’,
ip_address => ’192.168.0.1’,
helo_identity # optional,
=> ’mta.example.com’ # for %{h} macro expansion
);
my @versions = $request->versions;
my $scope = $request->scope;
my $authority_domain
= $request->authority_domain;
my $identity = $request->identity; # ’localpart@domain’ or ’domain’
my $domain = $request->domain;
my $localpart = $request->localpart;
my $ip_address = $request->ip_address; # IPv4 or IPv6 address
my $ip_address_v6 # native IPv6 address or
= $request->ip_address_v6; # IPv4-mapped IPv6 address
my $helo_identity # additional HELO identity
= $request->helo_identity; # for non-HELO scopes
my $record = $request->record;
# the record selected during processing of the request, may be undef
$request->state(field => ’value’);
my $value = $request->state(’field’);
DESCRIPTION
An object of class Mail::SPF::Request represents an SPF request.
Constructors
The following constructors are provided:
new(%options): returns Mail::SPF::Request
Creates a new SPF request object. The request is considered the
root-request for any subsequent sub-requests (see the
"new_sub_request" constructor).
%options is a list of key/value pairs representing any of the fol-
lowing options:
versions
A reference to an array of integers listing the versions of
SPF records that may be used for the SPF check. Only those
record versions that cover the desired scope will actually be
used. At least one applicable version must be specified. For
a single record version, a simple scalar may be specified
instead of an array-ref. Defaults to all versions that cover
the desired scope (see below); defaults to [1, 2] for the
default scope of ’mfrom’.
The following versions are supported:
1 Use "v=spf1" records.
2 Use "spf2.0" records.
Example: A value of 1 (or [1]) means that only "v=spf1"
records should be used for the SPF check. If at the same time
a scope of ’pra’ is specified, a Mail::SPF::EInvalidScope
exception will be thrown as "v=spf1" records do not cover the
PRA scope.
scope
A string denoting the authorization scope of the identity that
should be checked. Defaults to ’mfrom’. The following scope
values are supported:
’helo’
The given identity is the "HELO" parameter of an SMTP
transaction (RFC 2821) and should be checked against SPF
records that cover the "helo" scope ("v=spf1"). See the
SPFv1 specification (RFC 4408) for the formal definition
of the "HELO" scope.
’mfrom’
The given identity is the "MAIL FROM" parameter of an SMTP
transaction (RFC 2821), and should be checked against SPF
records that cover the "mfrom" scope ("v=spf1" and
"spf2.0/mfrom"). See the SPFv1 specification (RFC 4408)
for the formal definition of the "MAIL FROM" scope.
Note: In the case of an empty "MAIL FROM" SMTP transac-
tion parameter ("MAIL FROM:<>"), you should perform a
check with the "helo" scope instead.
’pra’
The given identity is the "Purported Responsible Address"
of an internet message (RFC 2822) and should be checked
against SPF records that cover the "pra" scope
("spf2.0/pra"). See the PRA specification (RFC 4407) for
the formal definition of the PRA scope.
authority_domain
A string denoting the domain name that should be queried for
sender policy records. Defaults to the domain of the "iden-
tity" option. There is usually no need to specify the
"authority_domain" option.
identity
Required. A string denoting the sender identity whose autho-
rization should be checked. This is a domain name for the
"helo" scope, and an e-mail address for the "mfrom" and "pra"
scopes.
Note: An empty identity must not be passed. In the case of
an empty "MAIL FROM" SMTP transaction parameter, you should
perform a check with the "helo" scope instead.
ip_address
Required for checks with the "helo", "mfrom", and "pra"
scopes. Either a string or a NetAddr::IP object denoting the
IP address of the host claiming the identity that is being
checked. Can be either an IPv4 or an IPv6 address. An
IPv4-mapped IPv6 address (e.g. ’::ffff:192.168.0.1’) is
treated as an IPv4 address.
helo_identity
A string denoting the "HELO" SMTP transaction parameter in the
case that the main identity is of a scope other than "helo".
This identity is then used merely for the expansion of "%{h}"
macros during the policy evaluation of the main identity.
Defaults to undef, which will be expanded to ’unknown’. If
the main identity is of the "helo" scope, this option is
unused.
new_sub_request(%options): returns Mail::SPF::Request
Must be invoked on an existing request object. Creates a new sub-
request object by cloning the invoked request, which is then con-
sidered the new request’s super-request. Any specified options
(see the "new" constructor) override the parameters of the
super-request. There is usually no need to specify any options
besides the "authority_domain" option.
Instance methods
The following instance methods are provided:
root_request: returns Mail::SPF::Request
Returns the root of the request’s chain of super-requests.
Specifically, returns the request itself if it has no
super-requests.
super_request: returns Mail::SPF::Request
Returns the super-request of the request, or undef if there is
none.
versions: returns list of string
Returns a list of the SPF record versions that are used for
request. See the description of the "new" constructor’s "ver-
sions" option.
scope: returns string
Returns the scope of the request. See the description of the
"new" constructor’s "scope" option.
authority_domain: returns string
Returns the authority domain of the request. See the description
of the "new" constructor’s "authority_domain" option.
identity: returns string
Returns the identity of the request. See the description of the
"new" constructor’s "identity" option.
domain: returns string
Returns the identity domain of the request. See the description
of the "new" constructor’s "identity" option.
localpart: returns string
Returns the identity localpart of the request. See the descrip-
tion of the "new" constructor’s "identity" option.
ip_address: returns NetAddr::IP
Returns the IP address of the request as a NetAddr::IP object.
See the description of the "new" constructor’s "ip_address"
option.
ip_address_v6: returns NetAddr::IP
Like the "ip_address" method, however, an IPv4 address is returned
as an IPv4-mapped IPv6 address (e.g. ’::ffff:192.168.0.1’) to
facilitate uniform processing.
helo_identity: returns string
Returns the "HELO" SMTP transaction parameter of the request. See
the description of the "new" constructor’s "helo_identity" option.
record: returns Mail::SPF::Record
Returns the SPF record selected during the processing of the
request, or undef if there is none.
state($field): returns anything
state($field, $value): returns anything
Provides an interface for storing temporary state information with
the request object. This is primarily meant to be used internally
by Mail::SPF::Server and other Mail::SPF classes.
If $value is specified, stores it in a state field named $field.
Returns the current (new) value of the state field named $field.
This method may be used as an lvalue.
SEE ALSO
Mail::SPF, Mail::SPF::Server
<http://www.ietf.org/rfc/rfc4408.txt>
For availability, support, and license information, see the README
file included with Mail::SPF.
AUTHORS
Julian Mehnle <julian@mehnle.net>, Shevek <cpan@anarres.org>
perl v5.8.8 2008-09-05 Mail::SPF::Request(3)
