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(* Module: Pg_Hba Parses PostgreSQL's pg_hba.conf Author: Aurelien Bompard <aurelien@bompard.org> About: Reference The file format is described in PostgreSQL's documentation: http://www.postgresql.org/docs/current/static/auth-pg-hba-conf.html About: License This file is licensed under the LGPL v2+, like the rest of Augeas. About: Configuration files This lens applies to pg_hba.conf. See <filter> for exact locations. *) module Pg_Hba = autoload xfm (* Group: Generic primitives *) let eol = Util.eol let word = Rx.neg1 (* Variable: ipaddr CIDR or ip+netmask *) let ipaddr = /[0-9a-fA-F:.]+(\/[0-9]+|[ \t]+[0-9.]+)/ (* Variable: hostname Hostname, FQDN or part of an FQDN possibly starting with a dot. Taken from the syslog lens. *) let hostname = /\.?[a-zA-Z0-9]([a-zA-Z0-9-]*[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]*[a-zA-Z0-9])?)*/ let comma_sep_list (l:string) = let lns = [ label l . store word ] in Build.opt_list lns Sep.comma (* Group: Columns definitions *) (* View: ipaddr_or_hostname *) let ipaddr_or_hostname = ipaddr | hostname (* View: database TODO: support for quoted strings *) let database = comma_sep_list "database" (* View: user TODO: support for quoted strings *) let user = comma_sep_list "user" (* View: address *) let address = [ label "address" . store ipaddr_or_hostname ] (* View: option part of <method> *) let option = let value_start = label "value" . Sep.equal in [ label "option" . store Rx.word . (Quote.quote_spaces value_start)? ] (* View: method can contain an <option> *) let method = [ label "method" . store /[A-Za-z][A-Za-z0-9]+/ . ( Sep.tab . option )* ] (* Group: Records definitions *) (* View: record_local when type is "local", there is no "address" field *) let record_local = [ label "type" . store "local" ] . Sep.tab . database . Sep.tab . user . Sep.tab . method (* Variable: remtypes non-local connection types *) let remtypes = "host" | "hostssl" | "hostnossl" (* View: record_remote *) let record_remote = [ label "type" . store remtypes ] . Sep.tab . database . Sep.tab . user . Sep.tab . address . Sep.tab . method (* View: record A sequence of <record_local> or <record_remote> entries *) let record = [ seq "entries" . (record_local | record_remote) . eol ] (* View: filter The pg_hba.conf conf file *) let filter = (incl "/var/lib/pgsql/data/pg_hba.conf" . incl "/var/lib/pgsql/*/data/pg_hba.conf" . incl "/etc/postgresql/*/*/pg_hba.conf" ) (* View: lns The pg_hba.conf lens *) let lns = ( record | Util.comment | Util.empty ) * let xfm = transform lns filter