284 lines
9.2 KiB
Groff
284 lines
9.2 KiB
Groff
.TH SQLITE_TABLE 5
|
|
.ad
|
|
.fi
|
|
.SH NAME
|
|
sqlite_table
|
|
\-
|
|
Postfix SQLite configuration
|
|
.SH "SYNOPSIS"
|
|
.na
|
|
.nf
|
|
\fBpostmap \-q "\fIstring\fB" sqlite:/etc/postfix/\fIfilename\fR
|
|
|
|
\fBpostmap \-q \- sqlite:/etc/postfix/\fIfilename\fB <\fIinputfile\fR
|
|
.SH DESCRIPTION
|
|
.ad
|
|
.fi
|
|
The Postfix mail system uses optional tables for address
|
|
rewriting or mail routing. These tables are usually in
|
|
\fBdbm\fR or \fBdb\fR format.
|
|
|
|
Alternatively, lookup tables can be specified as SQLite databases.
|
|
In order to use SQLite lookups, define an SQLite source as a lookup
|
|
table in main.cf, for example:
|
|
.nf
|
|
alias_maps = sqlite:/etc/postfix/sqlite\-aliases.cf
|
|
.fi
|
|
|
|
The file /etc/postfix/sqlite\-aliases.cf has the same format as
|
|
the Postfix main.cf file, and can specify the parameters
|
|
described below.
|
|
.SH "LIST MEMBERSHIP"
|
|
.na
|
|
.nf
|
|
.ad
|
|
.fi
|
|
When using SQL to store lists such as $mynetworks,
|
|
$mydestination, $relay_domains, $local_recipient_maps,
|
|
etc., it is important to understand that the table must
|
|
store each list member as a separate key. The table lookup
|
|
verifies the *existence* of the key. See "Postfix lists
|
|
versus tables" in the DATABASE_README document for a
|
|
discussion.
|
|
|
|
Do NOT create tables that return the full list of domains
|
|
in $mydestination or $relay_domains etc., or IP addresses
|
|
in $mynetworks.
|
|
|
|
DO create tables with each matching item as a key and with
|
|
an arbitrary value. With SQL databases it is not uncommon to
|
|
return the key itself or a constant value.
|
|
.SH "SQLITE PARAMETERS"
|
|
.na
|
|
.nf
|
|
.ad
|
|
.fi
|
|
.IP "\fBdbpath\fR"
|
|
The SQLite database file location. Example:
|
|
.nf
|
|
dbpath = customer_database
|
|
.fi
|
|
.IP "\fBquery\fR"
|
|
The SQL query template used to search the database, where \fB%s\fR
|
|
is a substitute for the address Postfix is trying to resolve,
|
|
e.g.
|
|
.nf
|
|
query = SELECT replacement FROM aliases WHERE mailbox = '%s'
|
|
.fi
|
|
|
|
This parameter supports the following '%' expansions:
|
|
.RS
|
|
.IP "\fB%%\fR"
|
|
This is replaced by a literal '%' character.
|
|
.IP "\fB%s\fR"
|
|
This is replaced by the input key.
|
|
SQL quoting is used to make sure that the input key does not
|
|
add unexpected metacharacters.
|
|
.IP "\fB%u\fR"
|
|
When the input key is an address of the form user@domain, \fB%u\fR
|
|
is replaced by the SQL quoted local part of the address.
|
|
Otherwise, \fB%u\fR is replaced by the entire search string.
|
|
If the localpart is empty, the query is suppressed and returns
|
|
no results.
|
|
.IP "\fB%d\fR"
|
|
When the input key is an address of the form user@domain, \fB%d\fR
|
|
is replaced by the SQL quoted domain part of the address.
|
|
Otherwise, the query is suppressed and returns no results.
|
|
.IP "\fB%[SUD]\fR"
|
|
The upper\-case equivalents of the above expansions behave in the
|
|
\fBquery\fR parameter identically to their lower\-case counter\-parts.
|
|
With the \fBresult_format\fR parameter (see below), they expand the
|
|
input key rather than the result value.
|
|
.IP "\fB%[1\-9]\fR"
|
|
The patterns %1, %2, ... %9 are replaced by the corresponding
|
|
most significant component of the input key's domain. If the
|
|
input key is \fIuser@mail.example.com\fR, then %1 is \fBcom\fR,
|
|
%2 is \fBexample\fR and %3 is \fBmail\fR. If the input key is
|
|
unqualified or does not have enough domain components to satisfy
|
|
all the specified patterns, the query is suppressed and returns
|
|
no results.
|
|
.RE
|
|
.IP
|
|
The \fBdomain\fR parameter described below limits the input
|
|
keys to addresses in matching domains. When the \fBdomain\fR
|
|
parameter is non\-empty, SQL queries for unqualified addresses
|
|
or addresses in non\-matching domains are suppressed
|
|
and return no results.
|
|
|
|
This parameter is available with Postfix 2.2. In prior releases
|
|
the SQL query was built from the separate parameters:
|
|
\fBselect_field\fR, \fBtable\fR, \fBwhere_field\fR and
|
|
\fBadditional_conditions\fR. The mapping from the old parameters
|
|
to the equivalent query is:
|
|
|
|
.nf
|
|
SELECT [\fBselect_field\fR]
|
|
FROM [\fBtable\fR]
|
|
WHERE [\fBwhere_field\fR] = '%s'
|
|
[\fBadditional_conditions\fR]
|
|
.fi
|
|
|
|
The '%s' in the \fBWHERE\fR clause expands to the escaped search string.
|
|
With Postfix 2.2 these legacy parameters are used if the \fBquery\fR
|
|
parameter is not specified.
|
|
|
|
NOTE: DO NOT put quotes around the query parameter.
|
|
.IP "\fBresult_format (default: \fB%s\fR)\fR"
|
|
Format template applied to result attributes. Most commonly used
|
|
to append (or prepend) text to the result. This parameter supports
|
|
the following '%' expansions:
|
|
.RS
|
|
.IP "\fB%%\fR"
|
|
This is replaced by a literal '%' character.
|
|
.IP "\fB%s\fR"
|
|
This is replaced by the value of the result attribute. When
|
|
result is empty it is skipped.
|
|
.IP "\fB%u\fR
|
|
When the result attribute value is an address of the form
|
|
user@domain, \fB%u\fR is replaced by the local part of the
|
|
address. When the result has an empty localpart it is skipped.
|
|
.IP "\fB%d\fR"
|
|
When a result attribute value is an address of the form
|
|
user@domain, \fB%d\fR is replaced by the domain part of
|
|
the attribute value. When the result is unqualified it
|
|
is skipped.
|
|
.IP "\fB%[SUD1\-9]\fR"
|
|
The upper\-case and decimal digit expansions interpolate
|
|
the parts of the input key rather than the result. Their
|
|
behavior is identical to that described with \fBquery\fR,
|
|
and in fact because the input key is known in advance, queries
|
|
whose key does not contain all the information specified in
|
|
the result template are suppressed and return no results.
|
|
.RE
|
|
.IP
|
|
For example, using "result_format = smtp:[%s]" allows one
|
|
to use a mailHost attribute as the basis of a transport(5)
|
|
table. After applying the result format, multiple values
|
|
are concatenated as comma separated strings. The expansion_limit
|
|
and parameter explained below allows one to restrict the number
|
|
of values in the result, which is especially useful for maps that
|
|
must return at most one value.
|
|
|
|
The default value \fB%s\fR specifies that each result value should
|
|
be used as is.
|
|
|
|
This parameter is available with Postfix 2.2 and later.
|
|
|
|
NOTE: DO NOT put quotes around the result format!
|
|
.IP "\fBdomain (default: no domain list)\fR"
|
|
This is a list of domain names, paths to files, or "type:table"
|
|
databases. When specified, only fully qualified search
|
|
keys with a *non\-empty* localpart and a matching domain
|
|
are eligible for lookup: 'user' lookups, bare domain lookups
|
|
and "@domain" lookups are not performed. This can significantly
|
|
reduce the query load on the SQLite server.
|
|
.nf
|
|
domain = postfix.org, hash:/etc/postfix/searchdomains
|
|
.fi
|
|
|
|
It is best not to use SQL to store the domains eligible
|
|
for SQL lookups.
|
|
|
|
This parameter is available with Postfix 2.2 and later.
|
|
|
|
NOTE: DO NOT define this parameter for local(8) aliases,
|
|
because the input keys are always unqualified.
|
|
.IP "\fBexpansion_limit (default: 0)\fR"
|
|
A limit on the total number of result elements returned
|
|
(as a comma separated list) by a lookup against the map.
|
|
A setting of zero disables the limit. Lookups fail with a
|
|
temporary error if the limit is exceeded. Setting the
|
|
limit to 1 ensures that lookups do not return multiple
|
|
values.
|
|
.SH "OBSOLETE MAIN.CF PARAMETERS"
|
|
.na
|
|
.nf
|
|
.ad
|
|
.fi
|
|
For compatibility with other Postfix lookup tables, SQLite
|
|
parameters can also be defined in main.cf. In order to do that,
|
|
specify as SQLite source a name that doesn't begin with a slash
|
|
or a dot. The SQLite parameters will then be accessible as the
|
|
name you've given the source in its definition, an underscore,
|
|
and the name of the parameter. For example, if the map is
|
|
specified as "sqlite:\fIsqlitename\fR", the parameter "query"
|
|
would be defined in main.cf as "\fIsqlitename\fR_query".
|
|
.SH "OBSOLETE QUERY INTERFACE"
|
|
.na
|
|
.nf
|
|
.ad
|
|
.fi
|
|
This section describes an interface that is deprecated as
|
|
of Postfix 2.2. It is replaced by the more general \fBquery\fR
|
|
interface described above. If the \fBquery\fR parameter
|
|
is defined, the legacy parameters described here ignored.
|
|
Please migrate to the new interface as the legacy interface
|
|
may be removed in a future release.
|
|
|
|
The following parameters can be used to fill in a
|
|
SELECT template statement of the form:
|
|
|
|
.nf
|
|
SELECT [\fBselect_field\fR]
|
|
FROM [\fBtable\fR]
|
|
WHERE [\fBwhere_field\fR] = '%s'
|
|
[\fBadditional_conditions\fR]
|
|
.fi
|
|
|
|
The specifier %s is replaced by the search string, and is
|
|
escaped so if it contains single quotes or other odd characters,
|
|
it will not cause a parse error, or worse, a security problem.
|
|
.IP "\fBselect_field\fR"
|
|
The SQL "select" parameter. Example:
|
|
.nf
|
|
\fBselect_field\fR = forw_addr
|
|
.fi
|
|
.IP "\fBtable\fR"
|
|
The SQL "select .. from" table name. Example:
|
|
.nf
|
|
\fBtable\fR = mxaliases
|
|
.fi
|
|
.IP "\fBwhere_field\fR
|
|
The SQL "select .. where" parameter. Example:
|
|
.nf
|
|
\fBwhere_field\fR = alias
|
|
.fi
|
|
.IP "\fBadditional_conditions\fR
|
|
Additional conditions to the SQL query. Example:
|
|
.nf
|
|
\fBadditional_conditions\fR = AND status = 'paid'
|
|
.fi
|
|
.SH "SEE ALSO"
|
|
.na
|
|
.nf
|
|
postmap(1), Postfix lookup table maintenance
|
|
postconf(5), configuration parameters
|
|
ldap_table(5), LDAP lookup tables
|
|
mysql_table(5), MySQL lookup tables
|
|
pgsql_table(5), PostgreSQL lookup tables
|
|
.SH "README FILES"
|
|
.na
|
|
.nf
|
|
.ad
|
|
.fi
|
|
Use "\fBpostconf readme_directory\fR" or
|
|
"\fBpostconf html_directory\fR" to locate this information.
|
|
.na
|
|
.nf
|
|
DATABASE_README, Postfix lookup table overview
|
|
SQLITE_README, Postfix SQLITE howto
|
|
.SH "LICENSE"
|
|
.na
|
|
.nf
|
|
.ad
|
|
.fi
|
|
The Secure Mailer license must be distributed with this software.
|
|
.SH HISTORY
|
|
.ad
|
|
.fi
|
|
SQLite support was introduced with Postfix version 2.8.
|
|
.SH "AUTHOR(S)"
|
|
.na
|
|
.nf
|
|
Original implementation by:
|
|
Axel Steiner
|