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require 'puppet/file_serving/configuration'
require 'puppet/util/loadedfile'
class Puppet::FileServing::Configuration::Parser < Puppet::Util::LoadedFile
Mount = Puppet::FileServing::Mount
MODULES = 'modules'
# Parse our configuration file.
def parse
raise("File server configuration %s does not exist" % self.file) unless FileTest.exists?(self.file)
raise("Cannot read file server configuration %s" % self.file) unless FileTest.readable?(self.file)
@mounts = {}
@count = 0
File.open(self.file) { |f|
mount = nil
f.each { |line|
# Have the count increment at the top, in case we throw exceptions.
@count += 1
case line
when /^\s*#/: next # skip comments
when /^\s*$/: next # skip blank lines
when /\[([-\w]+)\]/:
mount = newmount($1)
when /^\s*(\w+)\s+(.+)$/:
var = $1
value = $2
raise(ArgumentError, "Fileserver configuration file does not use '=' as a separator") if value =~ /^=/
case var
when "path":
path(mount, value)
when "allow":
allow(mount, value)
when "deny":
deny(mount, value)
else
raise ArgumentError.new("Invalid argument '%s'" % var,
@count, file)
end
else
raise ArgumentError.new("Invalid line '%s'" % line.chomp,
@count, file)
end
}
}
return @mounts
end
private
# Add the mount for getting files from modules.
def add_module_mount
unless @mounts[MODULES]
mount = Mount.new(MODULES)
mount.allow("*")
@mounts[MODULES] = mount
end
end
# Allow a given pattern access to a mount.
def allow(mount, value)
value.split(/\s*,\s*/).each { |val|
begin
mount.info "allowing %s access" % val
mount.allow(val)
rescue AuthStoreError => detail
raise ArgumentError.new(detail.to_s,
@count, file)
end
}
end
# Deny a given pattern access to a mount.
def deny(mount, value)
value.split(/\s*,\s*/).each { |val|
begin
mount.info "denying %s access" % val
mount.deny(val)
rescue AuthStoreError => detail
raise ArgumentError.new(detail.to_s,
@count, file)
end
}
end
# Create a new mount.
def newmount(name)
if @mounts.include?(name)
raise ArgumentError, "%s is already mounted at %s" %
[@mounts[name], name], @count, file
end
mount = Mount.new(name)
@mounts[name] = mount
return mount
end
# Set the path for a mount.
def path(mount, value)
if mount.name == MODULES
Puppet.warning "The '#{MODULES}' module can not have a path. Ignoring attempt to set it"
else
begin
mount.path = value
rescue ArgumentError => detail
Puppet.err "Removing mount %s: %s" %
[mount.name, detail]
@mounts.delete(mount.name)
end
end
end
# Make sure all of our mounts are valid. We have to do this after the fact
# because details are added over time as the file is parsed.
def validate
@mounts.each { |name, mount|
unless mount.valid?
raise ArgumentError, "No path specified for mount %s" % name
end
}
end
end
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