#!/usr/bin/python3
-
+#
+# Hippotat - Asinine IP Over HTTP program
+# ./hippotatd - server main program
+#
+# Copyright 2017 Ian Jackson
+#
+# AGPLv3+ + CAFv2+
+#
+# This program is free software: you can redistribute it and/or
+# modify it under the terms of the GNU Affero General Public
+# License as published by the Free Software Foundation, either
+# version 3 of the License, or (at your option) any later version,
+# with the "CAF Login Exception" as published by Ian Jackson
+# (version 2, or at your option any later version) as an Additional
+# Permission.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public
+# License and the CAF Login Exception along with this program, in
+# the file AGPLv3+CAFv2. If not, email Ian Jackson
+# <ijackson@chiark.greenend.org.uk>.
+
+#@ import sys; sys.path.append('@PYBUILD_INSTALL_DIR@')
from hippotatlib import *
import os
+import tempfile
+import atexit
+import shutil
+import subprocess
import twisted.internet
from twisted.web.server import NOT_DONE_YET
+import twisted.web.static
+
+import hippotatlib.ownsource
+from hippotatlib.ownsource import SourceShipmentPreparer
+
#import twisted.web.server import Site
#from twisted.web.resource import Resource
import syslog
+cleanups = [ ]
+
clients = { }
#---------- "router" ----------
pass
log_debug(DBG.HTTP, msg + repr(desca), **kwargs)
-class IphttpResource(twisted.web.resource.Resource):
- isLeaf = True
+class NotStupidResource(twisted.web.resource.Resource):
+ # why this is not the default is a mystery!
+ def getChild(self, name, request):
+ if name == b'': return self
+ else: return twisted.web.resource.Resource.getChild(name, request)
+
+class IphttpResource(NotStupidResource):
def render_POST(self, request):
log_debug(DBG.HTTP_FULL,
'req recv: ' + repr(request) + ' ' + repr(request.args),
log_debug(DBG.HTTP_CTRL, '...', idof=id(request))
return NOT_DONE_YET
+ # instantiator should set
+ # self.hippotat_sources = (source_names[0], source_names[1])
+ def __init__(self):
+ self.hippotat_sources = [None, None]
+ super().__init__()
+
def render_GET(self, request):
log_debug(DBG.HTTP, 'GET request')
- return b'<html><body>hippotat</body></html>'
+ s = '<html><body>hippotat\n'
+ (s0,s1) = self.hippotat_sources
+ if s0:
+ s += '<p><a href="%s">source</a>\n' % s0
+ if self.hippotat_sources[1]:
+ s += ('(and that of dependency <a href="%s">packages</a>)\n' % s1)
+ s += 'available'
+ else:
+ s += 'TESTING'
+ s += '</body></html>'
+ return s.encode('utf-8')
def start_http():
resource = IphttpResource()
site = twisted.web.server.Site(resource)
+
for sa in c.saddrs:
ep = sa.make_endpoint()
crash_on_defer(ep.listen(site))
log_debug(DBG.INIT, 'listening on %s' % sa)
+ td = tempfile.mkdtemp()
+
+ def cleanup():
+ try: shutil.rmtree(td)
+ except FileNotFoundError: pass
+
+ cleanups.append(cleanup)
+
+ ssp = SourceShipmentPreparer(td)
+ ssp.logger = partial(log_debug, DBG.OWNSOURCE)
+ if DBG.OWNSOURCE in debug_set: ssp.stream_debug = sys.stdout
+ ssp.download_packages = opts.ownsource >= 2
+ if opts.ownsource >= 1: ssp.generate()
+
+ for ix in (0,1):
+ bn = ssp.output_names[ix]
+ op = ssp.output_paths[ix]
+ if op is None: continue
+ resource.hippotat_sources[ix] = bn
+ subresource =twisted.web.static.File(op)
+ resource.putChild(bn.encode('utf-8'), subresource)
+
+ reactor.callLater(0.1, (lambda: log.info('hippotatd started', dflag=False)))
+
#---------- config and setup ----------
-
-def process_cfg(putative_servers, putative_clients):
+
+def process_cfg(_opts, putative_servers, putative_clients):
+ global opts
+ opts = _opts
+
global c
c = ConfigResults()
c.server = cfg.get('SERVER','server')
('peer', 'vrelay'),
('rnets','vnetwork')))
+ if opts.printconfig is not None:
+ try: val = cfg.get(c.server, opts.printconfig)
+ except NoOptionError: pass
+ else: print(val)
+ sys.exit(0)
+
+def catch_termination():
+ def run_cleanups():
+ for cleanup in cleanups:
+ cleanup()
+
+ atexit.register(run_cleanups)
+
+ def signal_handler(name, sig, *args):
+ signal.signal(sig, signal.SIG_DFL)
+ print('exiting due to %s' % name, file=sys.stderr)
+ run_cleanups()
+ os.kill(os.getpid(), sig)
+ raise RuntimeError('did not die due to signal %s !' % name)
+
+ for sig in (signal.SIGINT, signal.SIGTERM):
+ try: signame = sig.name
+ except AttributeError: signame = "signal %d" % sig
+ signal.signal(sig, partial(signal_handler, signame))
+
+def daemonise():
+ global syslogfacility
+ if opts.daemon and opts.syslogfacility is None:
+ opts.syslogfacility = 'daemon'
+
+ if opts.syslogfacility is not None:
+ facilnum = syslog.__dict__['LOG_' + opts.syslogfacility.upper()]
+ syslog.openlog('hippotatd',
+ facility=facilnum,
+ logoption=syslog.LOG_PID)
+ def emit(event):
+ if logevent_is_boringtwisted(event): return
+ m = twisted.logger.formatEvent(event)
+ #print(repr(event), m, file=org_stderr)
+ level = event.get('log_level')
+ if event.get('dflag',None) is not None: sl = syslog.LOG_DEBUG
+ elif level == LogLevel.critical : sl = syslog.LOG_CRIT
+ elif level == LogLevel.error : sl = syslog.LOG_ERR
+ elif level == LogLevel.warn : sl = syslog.LOG_WARNING
+ else : sl = syslog.LOG_INFO
+ syslog.syslog(sl,m)
+ glp = twisted.logger.globalLogPublisher
+ glp.addObserver(emit)
+ log_debug(DBG.INIT, 'starting to log to syslog')
+
+ #log.crit('daemonic hippotatd crashed', dflag=False)
+ if opts.daemon:
+ daemonic_reactor = (twisted.internet.interfaces.IReactorDaemonize
+ .providedBy(reactor))
+ if daemonic_reactor: reactor.beforeDaemonize()
+ if opts.pidfile is not None:
+ pidfile_h = open(opts.pidfile, 'w')
+ rfd, wfd = os.pipe()
+ childpid = os.fork()
+ if childpid:
+ # we are the parent
+ os.close(wfd)
+ st = os.read(rfd, 1)
+ try:
+ st = st[0]
+ except IndexError:
+ st = 127
+ log.critical('daemonic hippotatd crashed', dflag=False)
+ os._exit(st)
+ os.close(rfd)
+ os.setsid()
+ grandchildpid = os.fork()
+ if grandchildpid:
+ # we are the intermediate child
+ if opts.pidfile is not None:
+ print(grandchildpid, file=pidfile_h)
+ pidfile_h.close()
+ os._exit(0)
+
+ if opts.pidfile is not None:
+ pidfile_h.close()
+
+ logger = subprocess.Popen(['logger','-d',
+ '-t','hippotat(stderr)',
+ '--id=%d' % mypid,
+ '-p',opts.syslogfacility + '.err'],
+ stdin=subprocess.PIPE,
+ stdout=subprocess.DEVNULL,
+ stderr=subprocess.DEVNULL,
+ restore_signals=True)
+
+ nullfd = os.open('/dev/null', os.O_RDWR)
+ os.dup2(nullfd, 0)
+ os.dup2(nullfd, 1)
+ os.dup2(logger.stdin.fileno(), 2)
+ os.close(nullfd)
+ if daemonic_reactor: reactor.afterDaemonize()
+ log_debug(DBG.INIT, 'daemonised')
+ os.write(wfd, b'\0')
+ os.close(wfd)
+
+ if opts.syslogfacility is not None:
+ glp.removeObserver(hippotatlib.file_log_observer)
+
+optparser.add_option('--ownsource', default=2,
+ action='store_const', dest='ownsource', const=2,
+ help='source download fully enabled (default)')
+
+optparser.add_option('--ownsource-local',
+ action='store_const', dest='ownsource', const=1,
+ help='source download is local source code only')
+
+optparser.add_option('--no-ownsource',
+ action='store_const', dest='ownsource', const=0,
+ help='source download disabled (for testing only)')
+
+optparser.add_option('--daemon',
+ action='store_true', dest='daemon', default=False,
+ help='daemonize (and log to syslog)')
+
+optparser.add_option('--pidfile',
+ nargs=1, type='string',
+ action='store', dest='pidfile', default=None,
+ help='write pid to this file')
+
+optparser.add_option('--syslog-facility',
+ nargs=1, type='string',action='store',
+ metavar='FACILITY', dest='syslogfacility',
+ default=None,
+ help='log to syslog, with specified facility')
+
+optparser.add_option('--print-config',
+ nargs=1, type='string',action='store',
+ metavar='OPTION', dest='printconfig',
+ default=None,
+ help='print one config option value and exit')
+
common_startup(process_cfg)
-ipif = start_ipif(c.ipif_command, (lambda p,s,d: route(p,"[ipif]",s,d)))
+catch_termination()
start_http()
+daemonise()
+ipif = start_ipif(c.ipif_command, (lambda p,s,d: route(p,"[ipif]",s,d)))
common_run()
~ian / hippotat.git / blobdiff