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#!/usr/bin/env python
# $Id$
#
# 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 notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS. IN NO EVENT SHALL 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 getopt
import base64
import textwrap
from lxml.etree import Element, SubElement, ElementTree
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== %s == #%s\n" % (self.name, self.name))
for d in self.doc:
f.write("\n%s\n" % wiki_wrapper.fill(d))
if self.value is None:
f.write("\n%s\n" % wiki_wrapper.fill("No default value."))
else:
f.write("\n{{{\n#!ini\n%s = %s\n}}}\n" % (self.name, self.value))
def to_conf(self, f, width):
for i, d in enumerate(self.doc):
f.write("%s\n%s\n" % ("" if i == 0 else "#", conf_wrapper.fill(d)))
if self.value is None:
f.write("\n#%-*s = ???\n" % (width - 1, self.name))
else:
f.write("\n%-*s = %s\n" % (width, self.name, self.value))
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= [%s] section = #%s\n" % (self.name, self.name))
for d in self.doc:
f.write("\n%s\n" % 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("%s\n%s\n" % ("" 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):
f.write("\n".join((
"{{{",
"#!comment",
"",
star78,
"THIS PAGE WAS GENERATED AUTOMATICALLY, DO NOT EDIT.",
"",
"Generated from " + ident,
" by $Id$",
star78,
"",
"}}}",
"")))
if toc is not None:
f.write("[[TracNav(%s)]]\n" % toc)
f.write("[[PageOutline]]\n")
def conf_header(f):
f.write("\n".join((
"# Automatically generated. Edit as needed, but be careful of overwriting.",
"#",
"# Generated from " + ident,
"# by $Id$",
"")))
# We use clunky getopt instead of shiny argparse because ordering of
# operations matters here, and most options may be repeated. No doubt
# there's a way to do this with argparse, but it's not obvious that
# it's worth the time it would take to figure it out.
sections = []
section_map = None
option_map = None
ident = None
toc = None
try:
opts, argv = getopt.getopt(sys.argv[1:], "h",
["help",
"read-xml=",
"write-xml=",
"write-wiki=",
"write-conf=",
"set=",
"pwgen=",
"toc=",
"autoconf"])
except getopt.GetoptError, e:
sys.exit("%s: %s" % (sys.argv[0], e))
for o, a in opts:
if o in ("-h", "--help"):
sys.exit("Use the Source, Luke")
elif o == "--read-xml":
option_map = None
root = ElementTree(file = a).getroot()
ident = root.get("ident")
sections.extend(Section.from_xml(x) for x in root)
option_map = {}
section_map = {}
for section in sections:
if section.name in section_map:
sys.exit("Duplicate section %s" % section.name)
section_map[section.name] = section
for option in section.options:
name = (section.name, option.name)
if name in option_map:
sys.exit("Duplicate option %s::%s" % name)
option_map[name] = option
elif o == "--set":
try:
name, value = a.split("=", 1)
section, option = name.split("::")
except ValueError:
sys.exit("Couldn't parse --set specification \"%s\"" % a)
name = (section, option)
if name not in option_map:
sys.exit("Couldn't find option %s::%s" % name)
option_map[name].value = value
elif o == "--pwgen":
try:
section, option = a.split("::")
except ValueError:
sys.exit("Couldn't parse --pwgen specification \"%s\"" % a)
name = (section, option)
if name not in option_map:
sys.exit("Couldn't find option %s::%s" % name)
option_map[name].value = base64.urlsafe_b64encode(os.urandom(66))
elif o == "--autoconf":
try:
import rpki.autoconf
for option in 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")
elif o == "--write-xml":
x = Element("configuration", ident = ident)
x.extend(s.to_xml() for s in sections)
ElementTree(x).write(a, pretty_print = True, encoding = "us-ascii")
elif o == "--write-wiki":
if "%" in a:
for section in sections:
with open(a % section.name, "w") as f:
wiki_header(f)
section.to_wiki(f)
else:
with open(a, "w") as f:
for i, section in enumerate(sections):
if i == 0:
wiki_header(f)
else:
f.write("\f\n")
section.to_wiki(f)
elif o == "--write-conf":
with open(a, "w") as f:
conf_header(f)
width = max(s.width for s in sections)
for section in sections:
section.to_conf(f, width)
elif o == "--toc":
toc = a
if argv:
sys.exit("%s: Unexpected argument%s: %s" % (sys.argv[0], "" if len(argv) == 1 else "s", " ".join(argv)))
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