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.\" ========================================================================
.\"
.IX Title "Mail::SpamAssassin::SQLBasedAddrList 3"
.TH Mail::SpamAssassin::SQLBasedAddrList 3 "2015-04-29" "perl v5.16.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
Mail::SpamAssassin::SQLBasedAddrList \- SpamAssassin SQL Based Auto Whitelist
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 3
\&    my $factory = Mail::SpamAssassin::SQLBasedAddrList\->new()
\&    $spamtest\->set_persistent_addr_list_factory ($factory);
\&  ... call into SpamAssassin classes...
.Ve
.PP
SpamAssassin will call:
.PP
.Vb 3
\&    my $addrlist = $factory\->new_checker($spamtest);
\&    $entry = $addrlist\->get_addr_entry ($addr, $origip);
\&  ...
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
A \s-1SQL\s0 based persistent address list implementation.
.PP
See \f(CW\*(C`Mail::SpamAssassin::PersistentAddrList\*(C'\fR for more information.
.PP
Uses \s-1DBI::DBD\s0 module access to your favorite database (tested with
MySQL, SQLite and PostgreSQL) to store user auto-whitelists.
.PP
The default table structure looks like this:
\&\s-1CREATE TABLE\s0 awl (
  username varchar(100) \s-1NOT NULL\s0 default '',
  email varchar(255) \s-1NOT NULL\s0 default '',
  ip varchar(40) \s-1NOT NULL\s0 default '',
  count int(11) \s-1NOT NULL\s0 default '0',
  totscore float \s-1NOT NULL\s0 default '0',
  signedby varchar(255) \s-1NOT NULL\s0 default '',
  \s-1PRIMARY KEY \s0(username,email,signedby,ip)
) TYPE=MyISAM;
.PP
Your table definition may change depending on which database driver
you choose.  There is a config option to override the table name.
.PP
This module introduces several new config variables:
.PP
user_awl_dsn
.PP
user_awl_sql_username
.PP
user_awl_sql_password
.PP
user_awl_sql_table
.PP
user_awl_sql_override_username
.PP
see \f(CW\*(C`Mail::SpamAssassin::Conf\*(C'\fR for more information.
.SS "new"
.IX Subsection "new"
public class (Mail::SpamAssassin::SQLBasedAddrList) new ()
.PP
Description:
This method creates a new instance of the SQLBasedAddrList factory and calls
the parent's (PersistentAddrList) new method.
.SS "new_checker"
.IX Subsection "new_checker"
public instance (Mail::SpamAssassin::SQLBasedAddrList) new_checker (\e% \f(CW$main\fR)
.PP
Description:
This method is called to setup a new checker interface and return a blessed
copy of itself.  Here is where we setup the \s-1SQL\s0 database connection based
on the config values.
.SS "get_addr_entry"
.IX Subsection "get_addr_entry"
public instance (\e%) get_addr_entry (String \f(CW$addr\fR, String \f(CW$signedby\fR)
.PP
Description:
This method takes a given \f(CW$addr\fR and splits it between the email address
component and the ip component and performs a lookup in the database. If
nothing is found in the database then a blank entry hash is created and
returned, otherwise an entry containing the found information is returned.
If a with_awl_signer configuration option is enabled only addresses signed
by the given signing identity are taken into account, or, if \f(CW$signedby\fR is
undefined (or empty) only unsigned entries are considered.
.PP
A key, \f(CW\*(C`exists_p\*(C'\fR, is set to 1 if an entry already exists in the database,
otherwise it is set to 0.
.SS "add_score"
.IX Subsection "add_score"
public instance (\e%) add_score (\e% \f(CW$entry\fR, Integer \f(CW$score\fR)
.PP
Description:
This method adds a given \f(CW$score\fR to a given \f(CW$entry\fR.  If the entry was
marked as not existing in the database then an entry will be inserted,
otherwise a simple update will be performed.
.PP
\&\s-1NOTE:\s0 This code uses a self referential \s-1SQL\s0 call (ie set foo = foo + 1) which
is supported by most modern database backends, but not everything calling
itself a \s-1SQL\s0 database.
.SS "remove_entry"
.IX Subsection "remove_entry"
public instance () remove_entry (\e% \f(CW$entry\fR)
.PP
Description:
This method removes a given \f(CW$entry\fR from the database.  If the
ip portion of the entry address is equal to \*(L"none\*(R" then remove any
perl-IP entries for this address as well.
.SS "finish"
.IX Subsection "finish"
public instance () finish ()
.PP
Description:
This method provides the necessary cleanup for the address list.
.SS "_unpack_addr"
.IX Subsection "_unpack_addr"
private instance (String, String) _unpack_addr(string \f(CW$addr\fR)
.PP
Description:
This method splits an autowhitelist address into it's two components,
email and ip address.