forked from ungleich-public/cdist
9afb57412d
Signed-off-by: Nico Schottelius <nico@wurzel.schottelius.org>
193 lines
5.5 KiB
Python
193 lines
5.5 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# 2016 Nico Schottelius (nico-cdist at schottelius.org)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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#
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import ipaddress
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import logging
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import re
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import socket
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import http.server
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import os
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import socketserver
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import shutil
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import multiprocessing
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import cdist.config
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import cdist.install
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log = logging.getLogger(__name__)
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class Trigger():
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"""cdist trigger handling"""
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# Arguments that are only trigger specific
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triggers_args = [ "http_port", "ipv6", "directory", "source" ]
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def __init__(self, http_port=None, dry_run=False, ipv6=False,
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directory=None, source=None, cdistargs=None):
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self.log = logging.getLogger("trigger")
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self.dry_run = dry_run
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self.http_port = int(http_port)
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self.ipv6 = ipv6
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self.args = cdistargs
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self.directory = directory
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self.source = source
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log.debug("IPv6: %s", self.ipv6)
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def run_httpd(self):
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server_address = ('', self.http_port)
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if self.ipv6:
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httpdcls = HTTPServerV6
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else:
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httpdcls = HTTPServerV4
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httpd = httpdcls(self.args, self.directory, self.source, server_address, TriggerHttp)
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log.debug("Starting server at port %d", self.http_port)
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if self.dry_run:
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log.debug("Running in dry run mode")
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httpd.serve_forever()
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def run(self):
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if self.http_port:
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self.run_httpd()
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@classmethod
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def commandline(cls, args):
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http_port = args.http_port
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ipv6 = args.ipv6
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ownargs = {}
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for targ in cls.triggers_args:
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arg = getattr(args, targ)
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ownargs[targ] = arg
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del arg
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t = cls(**ownargs, dry_run=args.dry_run, cdistargs=args)
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t.run()
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class TriggerHttp(http.server.BaseHTTPRequestHandler):
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actions = { "cdist": [ "config", "install" ],
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"file": [ "present", "absent" ]
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}
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def do_HEAD(self):
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self.dispatch_request()
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def do_POST(self):
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self.dispatch_request()
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def do_GET(self):
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self.dispatch_request()
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def dispatch_request(self):
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host = self.client_address[0]
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code = 200
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self.cdistargs = self.server.cdistargs
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# FIXME: generate regexp based on self.actions
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m = re.match("^/(?P<subsystem>cdist|file)/(?P<action>present|absent|config|install)/", self.path)
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if m:
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subsystem = m.group('subsystem')
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action = m.group('action')
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handler = getattr(self, "handler_" + subsystem)
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if not action in self.actions[subsystem]:
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code = 404
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else:
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code = 404
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if code == 200:
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log.debug("Calling {} -> {}".format(subsystem, action))
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handler(action, host)
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self.send_response(code)
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self.end_headers()
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def handler_file(self, action, host):
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if not self.server.directory or not self.server.source:
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log.info("Cannot server file request: directory or source not setup")
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return
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try:
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ipaddress.ip_address(host)
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except ValueError:
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log.error("Host is not a valid IP address - aborting")
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return
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dst = os.path.join(self.server.directory, host)
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if action == "present":
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shutil.copyfile(self.server.source, dst)
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if action == "absent":
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if os.path.exists(dst):
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os.remove(dst)
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def handler_cdist(self, action, host):
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log.debug("Running cdist for %s in mode %s", host, mode)
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if self.server.dry_run:
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log.info("Dry run, skipping cdist execution")
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return
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cname = action.title()
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module = getattr(cdist, action)
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theclass = getattr(module, cname)
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if hasattr(self.cdistargs, 'out_path'):
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out_path = self.cdistargs.out_path
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else:
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out_path = None
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host_base_path, hostdir = theclass.create_host_base_dirs(
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host, theclass.create_base_root_path(out_path))
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theclass.construct_remote_exec_copy_patterns(self.cdistargs)
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log.debug("Executing cdist onehost with params: %s, %s, %s, %s, ",
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host, host_base_path, hostdir, self.cdistargs)
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theclass.onehost(host, host_base_path, hostdir, self.cdistargs,
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parallel=False)
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class HTTPServerV6(socketserver.ForkingMixIn, http.server.HTTPServer):
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"""
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Server that listens to both IPv4 and IPv6 requests.
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"""
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address_family = socket.AF_INET6
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def __init__(self, cdistargs, directory, source, *args, **kwargs):
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self.cdistargs = cdistargs
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self.dry_run = cdistargs.dry_run
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self.directory = directory
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self.source = source
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http.server.HTTPServer.__init__(self, *args, **kwargs)
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class HTTPServerV4(HTTPServerV6):
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"""
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Server that listens to IPv4 requests.
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"""
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address_family = socket.AF_INET
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