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#!/usr/bin/env python
# $Id$
#
# Copyright (C) 2015-2016 Parsons Government Services ("PARSONS")
# Portions copyright (C) 2014 Dragon Research Labs ("DRL")
# Portions copyright (C) 2013 Internet Systems Consortium ("ISC")
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notices and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND PARSONS, DRL, AND ISC DISCLAIM
# ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
# PARSONS, DRL, OR ISC BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
import os
import sys
import argparse
import base64
import textwrap
from lxml.etree import Element, SubElement, ElementTree, Comment
space4 = " " * 4
space6 = " " * 6
space8 = " " * 8
star78 = "*" * 78
wiki_wrapper = textwrap.TextWrapper()
conf_wrapper = textwrap.TextWrapper(initial_indent = "# ", subsequent_indent = "# ")
xml6_wrapper = textwrap.TextWrapper(initial_indent = space6, subsequent_indent = space6)
xml8_wrapper = textwrap.TextWrapper(initial_indent = space8, subsequent_indent = space8)
class Option(object):
def __init__(self, name, value, doc):
self.name = name
self.value = value
self.doc = doc
@property
def width(self):
return len(self.name)
def to_xml(self):
x = Element("option", name = self.name)
if self.value is not None:
x.set("value", self.value)
for d in self.doc:
SubElement(x, "doc").text = "\n" + xml8_wrapper.fill(d) + "\n" + space6
return x
def to_wiki(self, f):
f.write("\n== {0.name} == #{0.name}\n".format(self))
for d in self.doc:
f.write("\n{0}\n".format(wiki_wrapper.fill(d)))
if self.value is None:
f.write("\n{0}\n".format(wiki_wrapper.fill("No default value.")))
else:
f.write("\n{{{{{{\n#!ini\n{0.name} = {0.value}\n}}}}}}\n".format(self))
def to_conf(self, f, width):
for i, d in enumerate(self.doc):
f.write("{}\n{}\n".format("" if i == 0 else "#",
conf_wrapper.fill(d)))
if self.value is None:
f.write("\n#{1.name:{0}} = ???\n".format(width - 1, self))
else:
f.write("\n{1.name:{0}} = {1.value}\n".format(width, self))
class Section(object):
def __init__(self, name):
self.name = name
self.doc = []
self.options = []
@property
def width(self):
return max(o.width for o in self.options)
@classmethod
def from_xml(cls, elt):
self = cls(name = elt.get("name"))
for x in elt.iterchildren("doc"):
self.doc.append(" ".join(x.text.split()))
for x in elt.iterchildren("option"):
self.options.append(Option(name = x.get("name"), value = x.get("value"),
doc = [" ".join(d.text.split())
for d in x.iterchildren("doc")]))
return self
def to_xml(self):
x = Element("section", name = self.name)
for d in self.doc:
SubElement(x, "doc").text = "\n" + xml6_wrapper.fill(d) + "\n" + space4
x.extend(o.to_xml() for o in self.options)
return x
def to_wiki(self, f):
f.write("\n= [{0}] section = #{0}\n".format(self.name))
for d in self.doc:
f.write("\n{0}\n".format(wiki_wrapper.fill(d)))
for o in self.options:
o.to_wiki(f)
def to_conf(self, f, width):
f.write("\n" + "#" * 78 + "\n\n[" + self.name + "]\n")
if self.doc:
f.write("\n##")
for i, d in enumerate(self.doc):
f.write("{}\n{}\n".format("" if i == 0 else "#",
conf_wrapper.fill(d)))
f.write("##\n")
for o in self.options:
o.to_conf(f, width)
def wiki_header(f, ident, toc):
f.write(textwrap.dedent('''\
{{{{{{
#!comment
{star78}
THIS PAGE WAS GENERATED AUTOMATICALLY, DO NOT EDIT.
Generated from {ident}
by $Id$
{star78}
}}}}}}
'''.format(star78 = star78,
ident = ident)))
if toc is not None:
f.write("[[TracNav({})]]\n".format(toc))
f.write("[[PageOutline]]\n")
def conf_header(f, ident):
f.write(textwrap.dedent('''\
# Automatically generated. Edit as needed, but be careful of overwriting.
#
# Generated from {ident}
# by $Id$
'''.format(ident = ident)))
# http://stackoverflow.com/questions/9027028/argparse-argument-order
class CustomAction(argparse.Action):
def __call__(self, parser, namespace, values, option_string = None):
if not "ordered_args" in namespace:
namespace.ordered_args = []
namespace.ordered_args.append((self.dest, values))
class CustomFlagAction(CustomAction):
def __init__(self, option_strings, dest, default = None,
required = False, help = None): # pylint: disable=W0622
super(CustomFlagAction, self).__init__(
option_strings = option_strings,
dest = dest,
nargs = 0,
const = None,
default = default,
required = required,
help = help)
class main(object):
def __init__(self):
self.sections = []
self.section_map = None
self.option_map = None
self.ident = None
self.toc = None
parser = argparse.ArgumentParser(description = __doc__)
parser.add_argument("--read-xml", type = argparse.FileType("r"), metavar = "FILE", action = CustomAction, help = "XML input file defining sections and options", required = True)
parser.add_argument("--write-xml", type = argparse.FileType("w"), metavar = "FILE", action = CustomAction, help = "XML output file to snapshot configuration")
parser.add_argument("--write-conf", type = argparse.FileType("w"), metavar = "FILE", action = CustomAction, help = "rpki.conf configuration file to write")
parser.add_argument("--write-wiki", type = argparse.FileType("w"), metavar = "FILE", action = CustomAction, help = "TracWiki file to write (monolithic)")
parser.add_argument("--write-wiki-pages", metavar = "PATTERN", action = CustomAction, help = "TracWiki filenames (pattern) to write (one section per page)")
parser.add_argument("--set", metavar = "VARVAL", action = CustomAction, help = "variable setting in form \"VAR=VAL\"")
parser.add_argument("--pwgen", metavar = "VAR", action = CustomAction, help = "set variable to generated password")
parser.add_argument("--toc", metavar = "TOCVAL", action = CustomAction, help = "set TOC value to use with TracNav plugin")
parser.add_argument("--autoconf", action = CustomFlagAction, help = "configure [autoconf] section")
args = parser.parse_args()
for cmd, arg in args.ordered_args:
getattr(self, "do_" + cmd)(arg)
def do_read_xml(self, arg):
self.option_map = None
root = ElementTree(file = arg).getroot()
self.ident = root.get("ident")
self.sections.extend(Section.from_xml(x) for x in root.iterchildren("section"))
self.option_map = {}
self.section_map = {}
for section in self.sections:
if section.name in self.section_map:
sys.exit("Duplicate section {}".format(section.name))
self.section_map[section.name] = section
for option in section.options:
name = (section.name, option.name)
if name in self.option_map:
sys.exit("Duplicate option {}::{}".format(*name))
self.option_map[name] = option
def do_set(self, arg):
try:
name, value = arg.split("=", 1)
section, option = name.split("::")
except ValueError:
sys.exit("Couldn't parse --set specification \"{}\"".format(arg))
name = (section, option)
if name not in self.option_map:
sys.exit("Couldn't find option {}::{}".format(*name))
self.option_map[name].value = value
def do_pwgen(self, arg):
try:
section, option = arg.split("::")
except ValueError:
sys.exit("Couldn't parse --pwgen specification \"{}\"".format(arg))
name = (section, option)
if name not in self.option_map:
sys.exit("Couldn't find option {}::{}".format(name))
self.option_map[name].value = base64.urlsafe_b64encode(os.urandom(66))
def do_autoconf(self, ignored):
try:
import rpki.autoconf
for option in self.section_map["autoconf"].options:
try:
option.value = getattr(rpki.autoconf, option.name)
except AttributeError:
pass
except ImportError:
sys.exit("rpki.autoconf module is not available")
except KeyError:
sys.exit("Couldn't find autoconf section")
def do_write_xml(self, arg):
x = Element("configuration", ident = self.ident)
x.append(Comment(" Machine-editable configuration snapshot, generated automatically, do not touch "))
x.extend(s.to_xml() for s in self.sections)
ElementTree(x).write(arg, pretty_print = True, encoding = "us-ascii")
def do_write_wiki(self, arg):
for i, section in enumerate(self.sections):
if i == 0:
wiki_header(arg, self.ident, self.toc)
else:
arg.write("\f\n")
section.to_wiki(arg)
def do_write_wiki_pages(self, arg):
for section in self.sections:
with open(arg % section.name, "w") as f:
wiki_header(f, self.ident, self.toc)
section.to_wiki(f)
def do_write_conf(self, arg):
conf_header(arg, self.ident)
width = max(s.width for s in self.sections)
for section in self.sections:
section.to_conf(arg, width)
def do_toc(self, arg):
self.toc = arg
if __name__ == "__main__":
main()
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