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require 'puppet/util/loadedfile'
require 'puppet/network/rights'
module Puppet
class ConfigurationError < Puppet::Error; end
class Network::AuthConfig < Puppet::Util::LoadedFile
def self.main
@main ||= self.new
end
# Just proxy the setting methods to our rights stuff
[:allow, :deny].each do |method|
define_method(method) do |*args|
@rights.send(method, *args)
end
end
# Here we add a little bit of semantics. They can set auth on a whole
# namespace or on just a single method in the namespace.
def allowed?(request)
name = request.call.intern
namespace = request.handler.intern
method = request.method.intern
read
if @rights.include?(name)
return @rights[name].allowed?(request.name, request.ip)
elsif @rights.include?(namespace)
return @rights[namespace].allowed?(request.name, request.ip)
end
false
end
# Does the file exist? Puppetmasterd does not require it, but
# puppet agent does.
def exists?
FileTest.exists?(@file)
end
def initialize(file = nil, parsenow = true)
@file = file || Puppet[:authconfig]
raise Puppet::DevError, "No authconfig file defined" unless @file
return unless self.exists?
super(@file)
@rights = Puppet::Network::Rights.new
@configstamp = @configstatted = nil
@configtimeout = 60
read if parsenow
end
# Read the configuration file.
def read
return unless FileTest.exists?(@file)
if @configstamp
if @configtimeout and @configstatted
if Time.now - @configstatted > @configtimeout
@configstatted = Time.now
tmp = File.stat(@file).ctime
if tmp == @configstamp
return
else
Puppet.notice "#{tmp} vs #{@configstamp}"
end
else
return
end
else
Puppet.notice "#{@configtimeout} and #{@configstatted}"
end
end
parse
@configstamp = File.stat(@file).ctime
@configstatted = Time.now
end
private
def parse
newrights = Puppet::Network::Rights.new
begin
File.open(@file) { |f|
right = nil
count = 1
f.each { |line|
case line
when /^\s*#/ # skip comments
count += 1
next
when /^\s*$/ # skip blank lines
count += 1
next
when /^(?:(\[[\w.]+\])|(path)\s+((?:~\s+)?[^ ]+))\s*$/ # "namespace" or "namespace.method" or "path /path" or "path ~ regex"
name = $1
name = $3 if $2 == "path"
name.chomp!
right = newrights.newright(name, count, @file)
when /^\s*(allow|deny|method|environment|auth(?:enticated)?)\s+(.+)$/
parse_right_directive(right, $1, $2, count)
else
raise ConfigurationError, "Invalid line #{count}: #{line}"
end
count += 1
}
}
rescue Errno::EACCES => detail
Puppet.err "Configuration error: Cannot read #{@file}; cannot serve"
#raise Puppet::Error, "Cannot read #{@config}"
rescue Errno::ENOENT => detail
Puppet.err "Configuration error: '#{@file}' does not exit; cannot serve"
#raise Puppet::Error, "#{@config} does not exit"
#rescue FileServerError => detail
# Puppet.err "FileServer error: #{detail}"
end
# Verify each of the rights are valid.
# We let the check raise an error, so that it can raise an error
# pointing to the specific problem.
newrights.each { |name, right|
right.valid?
}
@rights = newrights
end
def parse_right_directive(right, var, value, count)
case var
when "allow"
modify_right(right, :allow, value, "allowing %s access", count)
when "deny"
modify_right(right, :deny, value, "denying %s access", count)
when "method"
unless right.acl_type == :regex
raise ConfigurationError, "'method' directive not allowed in namespace ACL at line #{count} of #{@config}"
end
modify_right(right, :restrict_method, value, "allowing 'method' %s", count)
when "environment"
unless right.acl_type == :regex
raise ConfigurationError, "'environment' directive not allowed in namespace ACL at line #{count} of #{@config}"
end
modify_right(right, :restrict_environment, value, "adding environment %s", count)
when /auth(?:enticated)?/
unless right.acl_type == :regex
raise ConfigurationError, "'authenticated' directive not allowed in namespace ACL at line #{count} of #{@config}"
end
modify_right(right, :restrict_authenticated, value, "adding authentication %s", count)
else
raise ConfigurationError,
"Invalid argument '#{var}' at line #{count}"
end
end
def modify_right(right, method, value, msg, count)
value.split(/\s*,\s*/).each do |val|
begin
right.info msg % val
right.send(method, val)
rescue AuthStoreError => detail
raise ConfigurationError, "#{detail} at line #{count} of #{@file}"
end
end
end
end
end
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