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Diffstat (limited to 'third_party/dnspython/examples/zonediff.py')
| -rwxr-xr-x | third_party/dnspython/examples/zonediff.py | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/third_party/dnspython/examples/zonediff.py b/third_party/dnspython/examples/zonediff.py deleted file mode 100755 index 0c101781a3e..00000000000 --- a/third_party/dnspython/examples/zonediff.py +++ /dev/null @@ -1,270 +0,0 @@ -#!/usr/bin/env python -# -# Small library and commandline tool to do logical diffs of zonefiles -# ./zonediff -h gives you help output -# -# Requires dnspython to do all the heavy lifting -# -# (c)2009 Dennis Kaarsemaker <dennis@kaarsemaker.net> -# -# Permission to use, copy, modify, and distribute this software and its -# documentation 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 THE AUTHOR DISCLAIMS ALL WARRANTIES -# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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. -"""See diff_zones.__doc__ for more information""" - -__all__ = ['diff_zones', 'format_changes_plain', 'format_changes_html'] - -try: - import dns.zone -except ImportError: - import sys - sys.stderr.write("Please install dnspython") - sys.exit(1) - -def diff_zones(zone1, zone2, ignore_ttl=False, ignore_soa=False): - """diff_zones(zone1, zone2, ignore_ttl=False, ignore_soa=False) -> changes - Compares two dns.zone.Zone objects and returns a list of all changes - in the format (name, oldnode, newnode). - - If ignore_ttl is true, a node will not be added to this list if the - only change is its TTL. - - If ignore_soa is true, a node will not be added to this list if the - only changes is a change in a SOA Rdata set. - - The returned nodes do include all Rdata sets, including unchanged ones. - """ - - changes = [] - for name in zone1: - name = str(name) - n1 = zone1.get_node(name) - n2 = zone2.get_node(name) - if not n2: - changes.append((str(name), n1, n2)) - elif _nodes_differ(n1, n2, ignore_ttl, ignore_soa): - changes.append((str(name), n1, n2)) - - for name in zone2: - n1 = zone1.get_node(name) - if not n1: - n2 = zone2.get_node(name) - changes.append((str(name), n1, n2)) - return changes - -def _nodes_differ(n1, n2, ignore_ttl, ignore_soa): - if ignore_soa or not ignore_ttl: - # Compare datasets directly - for r in n1.rdatasets: - if ignore_soa and r.rdtype == dns.rdatatype.SOA: - continue - if r not in n2.rdatasets: - return True - if not ignore_ttl: - return r.ttl != n2.find_rdataset(r.rdclass, r.rdtype).ttl - - for r in n2.rdatasets: - if ignore_soa and r.rdtype == dns.rdatatype.SOA: - continue - if r not in n1.rdatasets: - return True - else: - return n1 != n2 - -def format_changes_plain(oldf, newf, changes, ignore_ttl=False): - """format_changes(oldfile, newfile, changes, ignore_ttl=False) -> str - Given 2 filenames and a list of changes from diff_zones, produce diff-like - output. If ignore_ttl is True, TTL-only changes are not displayed""" - - ret = "--- %s\n+++ %s\n" % (oldf, newf) - for name, old, new in changes: - ret += "@ %s\n" % name - if not old: - for r in new.rdatasets: - ret += "+ %s\n" % str(r).replace('\n','\n+ ') - elif not new: - for r in old.rdatasets: - ret += "- %s\n" % str(r).replace('\n','\n+ ') - else: - for r in old.rdatasets: - if r not in new.rdatasets or (r.ttl != new.find_rdataset(r.rdclass, r.rdtype).ttl and not ignore_ttl): - ret += "- %s\n" % str(r).replace('\n','\n+ ') - for r in new.rdatasets: - if r not in old.rdatasets or (r.ttl != old.find_rdataset(r.rdclass, r.rdtype).ttl and not ignore_ttl): - ret += "+ %s\n" % str(r).replace('\n','\n+ ') - return ret - -def format_changes_html(oldf, newf, changes, ignore_ttl=False): - """format_changes(oldfile, newfile, changes, ignore_ttl=False) -> str - Given 2 filenames and a list of changes from diff_zones, produce nice html - output. If ignore_ttl is True, TTL-only changes are not displayed""" - - ret = '''<table class="zonediff"> - <thead> - <tr> - <th> </th> - <th class="old">%s</th> - <th class="new">%s</th> - </tr> - </thead> - <tbody>\n''' % (oldf, newf) - - for name, old, new in changes: - ret += ' <tr class="rdata">\n <td class="rdname">%s</td>\n' % name - if not old: - for r in new.rdatasets: - ret += ' <td class="old"> </td>\n <td class="new">%s</td>\n' % str(r).replace('\n','<br />') - elif not new: - for r in old.rdatasets: - ret += ' <td class="old">%s</td>\n <td class="new"> </td>\n' % str(r).replace('\n','<br />') - else: - ret += ' <td class="old">' - for r in old.rdatasets: - if r not in new.rdatasets or (r.ttl != new.find_rdataset(r.rdclass, r.rdtype).ttl and not ignore_ttl): - ret += str(r).replace('\n','<br />') - ret += '</td>\n' - ret += ' <td class="new">' - for r in new.rdatasets: - if r not in old.rdatasets or (r.ttl != old.find_rdataset(r.rdclass, r.rdtype).ttl and not ignore_ttl): - ret += str(r).replace('\n','<br />') - ret += '</td>\n' - ret += ' </tr>\n' - return ret + ' </tbody>\n</table>' - -# Make this module usable as a script too. -if __name__ == '__main__': - import optparse - import subprocess - import sys - import traceback - - usage = """%prog zonefile1 zonefile2 - Show differences between zones in a diff-like format -%prog [--git|--bzr|--rcs] zonefile rev1 [rev2] - Show differences between two revisions of a zonefile - -The differences shown will be logical differences, not textual differences. -""" - p = optparse.OptionParser(usage=usage) - p.add_option('-s', '--ignore-soa', action="store_true", default=False, dest="ignore_soa", - help="Ignore SOA-only changes to records") - p.add_option('-t', '--ignore-ttl', action="store_true", default=False, dest="ignore_ttl", - help="Ignore TTL-only changes to Rdata") - p.add_option('-T', '--traceback', action="store_true", default=False, dest="tracebacks", - help="Show python tracebacks when errors occur") - p.add_option('-H', '--html', action="store_true", default=False, dest="html", - help="Print HTML output") - p.add_option('-g', '--git', action="store_true", default=False, dest="use_git", - help="Use git revisions instead of real files") - p.add_option('-b', '--bzr', action="store_true", default=False, dest="use_bzr", - help="Use bzr revisions instead of real files") - p.add_option('-r', '--rcs', action="store_true", default=False, dest="use_rcs", - help="Use rcs revisions instead of real files") - opts, args = p.parse_args() - opts.use_vc = opts.use_git or opts.use_bzr or opts.use_rcs - - def _open(what, err): - if isinstance(what, basestring): - # Open as normal file - try: - return open(what, 'rb') - except: - sys.stderr.write(err + "\n") - if opts.tracebacks: - traceback.print_exc() - else: - # Must be a list, open subprocess - try: - proc = subprocess.Popen(what, stdout=subprocess.PIPE) - proc.wait() - if proc.returncode == 0: - return proc.stdout - sys.stderr.write(err + "\n") - except: - sys.stderr.write(err + "\n") - if opts.tracebacks: - traceback.print_exc() - - if not opts.use_vc and len(args) != 2: - p.print_help() - sys.exit(64) - if opts.use_vc and len(args) not in (2,3): - p.print_help() - sys.exit(64) - - # Open file descriptors - if not opts.use_vc: - oldn, newn = args - else: - if len(args) == 3: - filename, oldr, newr = args - oldn = "%s:%s" % (oldr, filename) - newn = "%s:%s" % (newr, filename) - else: - filename, oldr = args - newr = None - oldn = "%s:%s" % (oldr, filename) - newn = filename - - - old, new = None, None - oldz, newz = None, None - if opts.use_bzr: - old = _open(["bzr", "cat", "-r" + oldr, filename], - "Unable to retrieve revision %s of %s" % (oldr, filename)) - if newr != None: - new = _open(["bzr", "cat", "-r" + newr, filename], - "Unable to retrieve revision %s of %s" % (newr, filename)) - elif opts.use_git: - old = _open(["git", "show", oldn], - "Unable to retrieve revision %s of %s" % (oldr, filename)) - if newr != None: - new = _open(["git", "show", newn], - "Unable to retrieve revision %s of %s" % (newr, filename)) - elif opts.use_rcs: - old = _open(["co", "-q", "-p", "-r" + oldr, filename], - "Unable to retrieve revision %s of %s" % (oldr, filename)) - if newr != None: - new = _open(["co", "-q", "-p", "-r" + newr, filename], - "Unable to retrieve revision %s of %s" % (newr, filename)) - if not opts.use_vc: - old = _open(oldn, "Unable to open %s" % oldn) - if not opts.use_vc or newr == None: - new = _open(newn, "Unable to open %s" % newn) - - if not old or not new: - sys.exit(65) - - # Parse the zones - try: - oldz = dns.zone.from_file(old, origin = '.', check_origin=False) - except dns.exception.DNSException: - sys.stderr.write("Incorrect zonefile: %s\n", old) - if opts.tracebacks: - traceback.print_exc() - try: - newz = dns.zone.from_file(new, origin = '.', check_origin=False) - except dns.exception.DNSException: - sys.stderr.write("Incorrect zonefile: %s\n" % new) - if opts.tracebacks: - traceback.print_exc() - if not oldz or not newz: - sys.exit(65) - - changes = diff_zones(oldz, newz, opts.ignore_ttl, opts.ignore_soa) - changes.sort() - - if not changes: - sys.exit(0) - if opts.html: - print format_changes_html(oldn, newn, changes, opts.ignore_ttl) - else: - print format_changes_plain(oldn, newn, changes, opts.ignore_ttl) - sys.exit(1) |