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(* Module: Authorized_Keys Parses SSH authorized_keys Author: Raphael Pinson <raphael.pinson@camptocamp.com> About: Reference This lens tries to keep as close as possible to `man 5 authorized_keys` where possible. About: License This file is licenced under the LGPL v2+, like the rest of Augeas. About: Lens Usage To be documented About: Configuration files This lens applies to SSH authorized_keys. See <filter>. About: Examples The <Test_Authorized_Keys> file contains various examples and tests. *) module Authorized_Keys = autoload xfm (* View: option A key option *) let option = let kv_re = "command" | "environment" | "from" | "permitopen" | "principals" | "tunnel" in let flag_re = "cert-authority" | "no-agent-forwarding" | "no-port-forwarding" | "no-pty" | "no-user-rc" | "no-X11-forwarding" in let option_value = Util.del_str "\"" . store /((\\\\")?[^\\\n"]*)+/ . Util.del_str "\"" in Build.key_value kv_re Sep.equal option_value | Build.flag flag_re (* View: key_options A list of key <option>s *) let key_options = [ label "options" . Build.opt_list option Sep.comma ] (* View: key_type *) let key_type = let key_type_re = /ecdsa-sha2-nistp[0-9]+/ | /ssh-[a-z0-9]+/ in [ label "type" . store key_type_re ] (* View: key_comment *) let key_comment = [ label "comment" . store Rx.space_in ] (* View: authorized_key *) let authorized_key = [ label "key" . (key_options . Sep.space)? . key_type . Sep.space . store Rx.no_spaces . (Sep.space . key_comment)? . Util.eol ] (* View: lns The authorized_keys lens *) let lns = ( Util.empty | Util.comment | authorized_key)* (* Variable: filter *) let filter = incl (Sys.getenv("HOME") . "/.ssh/authorized_keys") let xfm = transform lns filter