#!/usr/local/bin/python

import os,sys

from BaseHTTPServer import BaseHTTPRequestHandler
from ZSI import *
from M2Crypto import SSL
from M2Crypto.m2xmlrpclib import SSL_Transport
from M2Crypto.SSL.SSLServer import SSLServer
import M2Crypto.httpslib
import xmlrpclib

import re
import string
import subprocess
import tempfile
import copy

from fedd_services import *
from fedd_util import *
from fedd_allocate_project import *
from fedd_create_experiment import *
import parse_detail
from service_error import *

class fedd_proj:
    """
    The implementation of access control based on mapping users to projects.

    Users can be mapped to existing projects or have projects created
    dynamically.  This implements both direct requests and proxies.
    """
    # Attributes that can be parsed from the configuration file
    bool_attrs = ("dynamic_projects", "project_priority", "create_debug")
    emulab_attrs = ("boss", "ops", "domain", "fileserver", "eventserver")
    id_attrs = ("testbed", "cert_file", "cert_pwd", "trusted_certs", "proxy",
	    "proxy_cert_file", "proxy_cert_pwd", "proxy_trusted_certs",
	    "dynamic_projects_url", "dynamic_projects_cert_file", 
	    "dynamic_projects_cert_pwd", "dynamic_projects_trusted_certs",
	    "create_experiment_cert_file", "create_experiment_cert_pwd",
	    "create_experiment_trusted_certs", "federation_script_dir",
	    "ssh_pubkey_file")

    # Used by the SOAP caller
    soap_namespaces = ('http://www.isi.edu/faber/fedd.wsdl',
	    'http://www.isi.edu/faber/fedd_internal.wsdl')
    soap_methods = {\
	    'RequestAccess': 'soap_RequestAccess',\
	    'Create' : 'soap_Create',\
	    'Vtopo' : 'soap_Vtopo',\
	    'Vis' : 'soap_Vis',\
	    }
    xmlrpc_methods = { \
	    'RequestAccess': 'xmlrpc_RequestAccess',
	    'Create': 'xmlrpc_Create',
	    'Vtopo' : 'xmlrpc_Vtopo',\
	    'Vis' : 'xmlrpc_Vis',\
	    }

    class access_project:
	"""
	A project description used to grant access to this testbed.

	The description includes a name and a list of node types to which the
	project will be granted access.
	"""
	def __init__(self, name, nt):
	    self.name = name
	    self.node_types = list(nt)

	def __repr__(self):
	    if len(self.node_types) > 0:
		return "access_proj('%s', ['%s'])" % \
			(self.name, str("','").join(self.node_types))
	    else:
		return "access_proj('%s', [])" % self.name

    # Used to report errors parsing the configuration files, not in providing
    # service
    class parse_error(RuntimeError): pass


    def __init__(self, config=None):
	"""
	Initializer.  Parses a configuration if one is given.
	"""

	# Create instance attributes from the static lists
	for a in fedd_proj.bool_attrs:
	    setattr(self, a, False)

	for a in fedd_proj.emulab_attrs + fedd_proj.id_attrs:
	    setattr(self, a, None)

	# Other attributes
	self.attrs = {}
	self.access = {}
	self.fedid_category = {}
	self.fedid_default = "user"
	self.restricted = []
	self.create_debug = False

	# Read the configuration
	if config != None: 
	    self.read_config(config)

	# Certs are promoted from the generic to the specific, so without a
	# specific proxy certificate, the main certificates are used for proxy
	# interactions. If no dynamic project certificates, then proxy certs
	# are used, and if none of those the main certs.

	# init proxy certs
	if self.proxy_cert_file == None:
	    self.proxy_cert_file = self.cert_file
	    self.proxy_cert_pwd = self.cert_pwd

	if self.proxy_trusted_certs == None:
	    self.proxy_trusted_certs = self.trusted_certs

	# init dynamic project certs
	if self.dynamic_projects_cert_file == None:
	    self.dynamic_projects_cert_file = self.proxy_cert_file
	    self.dynamic_projects_cert_pwd = self.proxy_cert_pwd

	if self.dynamic_projects_trusted_certs == None:
	    self.dynamic_projects_trusted_certs = self.proxy_trusted_certs

	proj_certs = (self.dynamic_projects_cert_file, 
		self.dynamic_projects_trusted_certs,
		self.dynamic_projects_cert_pwd)

	# Initialize create experiment certs
	if not self.create_experiment_cert_file:
	    self.create_experiment_cert_file = self.proxy_cert_file
	    self.create_experiment_cert_pwd = self.proxy_cert_pwd

	if self.create_experiment_trusted_certs == None:
	    self.create_experiment_trusted_certs = self.proxy_trusted_certs

	if self.dynamic_projects_url == None:
	    self.allocate_project = \
		fedd_allocate_project_local(self.dynamic_projects, 
			self.dynamic_projects_url, proj_certs)
	    fedd_proj.soap_methods['AllocateProject'] = 'soap_AllocateProject'
	else:
	    self.allocate_project = \
		fedd_allocate_project_remote(self.dynamic_projects, 
			self.dynamic_projects_url, proj_certs)

	create_kwargs = { }
	if self.federation_script_dir:
	    create_kwargs['scripts_dir'] = self.federation_script_dir
	if self.ssh_pubkey_file:
	    create_kwargs['ssh_pubkey_file'] = self.ssh_pubkey_file
	if self.create_experiment_cert_file:
	    create_kwargs['cert_file'] = self.create_experiment_cert_file
	if self.create_experiment_cert_pwd:
	    create_kwargs['cert_pwd'] = self.create_experiment_cert_pwd
	if self.create_experiment_trusted_certs:
	    create_kwargs['trusted_certs'] = \
		    self.create_experiment_trusted_certs

	self.create_experiment = fedd_create_experiment_local(
	    tbmap = { 
		'deter':'https://users.isi.deterlab.net:23235',
		'emulab':'https://users.isi.deterlab.net:23236',
		'ucb':'https://users.isi.deterlab.net:23237',
		},
	    trace_file=sys.stderr,
	    debug=self.create_debug,
	    **create_kwargs
	) 

    def dump_state(self):
	"""
	Dump the state read from a configuration file.  Mostly for debugging.
	"""
	for a in fedd_proj.bool_attrs:
	    print "%s: %s" % (a, getattr(self, a ))
	for a in fedd_proj.emulab_attrs + fedd_proj.id_attrs:
	    print "%s: %s" % (a, getattr(self, a))
	for k, v in self.attrs.iteritems():
	    print "%s %s" % (k, v)
	print "Access DB:"
	for k, v in self.access.iteritems():
	    print "%s %s" % (k, v)
	print "Trust DB:"
	for k, v in self.fedid_category.iteritems():
	    print "%s %s" % (k, v)
	print "Restricted: %s" % str(',').join(sorted(self.restricted))

    def get_users(self, obj):
	"""
	Return a list of the IDs of the users in dict
	"""
	if obj.has_key('user'):
	    return [ unpack_id(u['userID']) \
		    for u in obj['user'] if u.has_key('userID') ]
	else:
	    return None

    def strip_unicode(self, obj):
	"""Loosly de-unicode an object"""
	if isinstance(obj, dict):
	    for k in obj.keys():
		obj[k] = self.strip_unicode(obj[k])
	    return obj
	elif isinstance(obj, basestring):
	    return str(obj)
	elif getattr(obj, "__iter__", None):
	    return [ self.strip_unicode(x) for x in obj]
	else:
	    return obj

    def proxy_xmlrpc_request(self, dt, req):
	"""Send an XMLRPC proxy request.  Called if the SOAP RPC fails"""

	# No retry loop here.  Proxy servers must correctly authenticate
	# themselves without help
	try:
	    ctx = fedd_ssl_context(self.proxy_cert_file, 
		    self.proxy_trusted_certs, password=self.proxy_cert_pwd)
	except SSL.SSLError:
	    raise service_error(service_error.server_config,
		    "Server certificates misconfigured")

	# Of all the dumbass things.  The XMLRPC library in use here won't
	# properly encode unicode strings, so we make a copy of req with the
	# unicode objects converted.  We also convert the destination testbed
	# to a basic string if it isn't one already.
	if isinstance(dt, str): url = dt
	else: url = str(dt)

	r = copy.deepcopy(req)
	self.strip_unicode(r)
	
	transport = SSL_Transport(ctx)
	port = xmlrpclib.ServerProxy(url, transport=transport)

	# Reconstruct the full request message
	try:
	    resp = port.RequestAccess(
		    { "RequestAccessRequestBody": r})
	    resp, method = xmlrpclib.loads(resp)
	except xmlrpclib.Fault, f:
	    se = service_error(None, f.faultString, f.faultCode)
	    raise se
	except xmlrpclib.Error, e:
	    raise service_error(service_error.proxy, 
		    "Remote XMLRPC Fault: %s" % e)
	
	if resp[0].has_key('RequestAccessResponseBody'):
	    return resp[0]['RequestAccessResponseBody']
	else:
	    raise service_error(service_error.proxy, 
		    "Bad proxy response")

    def proxy_request(self, dt, req):
	"""
	Send req on to the real destination in dt and return the response

	Req is just the requestType object.  This function re-wraps it.  It
	also rethrows any faults.
	"""
	# No retry loop here.  Proxy servers must correctly authenticate
	# themselves without help
	try:
	    ctx = fedd_ssl_context(self.proxy_cert_file, 
		    self.proxy_trusted_certs, password=self.proxy_cert_pwd)
	except SSL.SSLError:
	    raise service_error(service_error.server_config, 
		    "Server certificates misconfigured")

	loc = feddServiceLocator();
	port = loc.getfeddPortType(dt,
		transport=M2Crypto.httpslib.HTTPSConnection, 
		transdict={ 'ssl_context' : ctx })

	# Reconstruct the full request message
	msg = RequestAccessRequestMessage()
	msg.set_element_RequestAccessRequestBody(
		pack_soap(msg, "RequestAccessRequestBody", req))
	try:
	    resp = port.RequestAccess(msg)
	except ZSI.ParseException, e:
	    raise service_error(service_error.proxy,
		    "Bad format message (XMLRPC??): %s" %
		    str(e))
	r = unpack_soap(resp)

	if r.has_key('RequestAccessResponseBody'):
	    return r['RequestAccessResponseBody']
	else:
	    raise service_error(service_error.proxy,
		    "Bad proxy response")

    def permute_wildcards(self, a, p):
	"""Return a copy of a with various fields wildcarded.

	The bits of p control the wildcards.  A set bit is a wildcard
	replacement with the lowest bit being user then project then testbed.
	"""
	if p & 1: user = ["<any>"]
	else: user = a[2]
	if p & 2: proj = "<any>"
	else: proj = a[1]
	if p & 4: tb = "<any>"
	else: tb = a[0]

	return (tb, proj, user)

    def find_access(self, search):
	"""
	Search the access DB for a match on this tuple.  Return the matching
	access tuple and the user that matched.
	
	NB, if the initial tuple fails to match we start inserting wildcards in
	an order determined by self.project_priority.  Try the list of users in
	order (when wildcarded, there's only one user in the list).
	"""
	if self.project_priority: perm = (0, 1, 2, 3, 4, 5, 6, 7)
	else: perm = (0, 2, 1, 3, 4, 6, 5, 7)

	for p in perm: 
	    s = self.permute_wildcards(search, p)
	    # s[2] is None on an anonymous, unwildcarded request
	    if s[2] != None:
		for u in s[2]:
		    if self.access.has_key((s[0], s[1], u)):
			return (self.access[(s[0], s[1], u)], u)
	    else:
		if self.access.has_key(s):
		    return (self.access[s], None)
	return None, None

    def lookup_access(self, req, fid):
	"""
	Determine the allowed access for this request.  Return the access and
	which fields are dynamic.

	The fedid is needed to construct the request
	"""
	# Search keys
	tb = None
	project = None
	user = None
	# Return values
	rp = fedd_proj.access_project(None, ())
	ru = None


	principal_type = self.fedid_category.get(fid, self.fedid_default)

	if principal_type == "testbed": tb = fid

	if req.has_key('project'):
	    p = req['project']
	    if p.has_key('name'):
		project = unpack_id(p['name'])
	    user = self.get_users(p)
	else:
	    user = self.get_users(req)

	# Now filter by prinicpal type
	if principal_type == "user":
	    if user != None:
		fedids = [ u for u in user if isinstance(u, type(fid))]
		if len(fedids) > 1:
		    raise service_error(service_error.req,
			    "User asserting multiple fedids")
		elif len(fedids) == 1 and fedids[0] != fid:
		    raise service_error(service_error.req,
			    "User asserting different fedid")
	    project = None
	    tb = None
	elif principal_type == "project":
	    if isinstance(project, type(fid)) and fid != project:
		raise service_error(service_error.req,
			"Project asserting different fedid")
	    tb = None

	# Ready to look up access
	found, user_match = self.find_access((tb, project, user))
	
	if found == None:
	    raise service_error(service_error.access,
		    "Access denied")

	# resolve <dynamic> and <same> in found
	dyn_proj = False
	dyn_user = False

	if found[0].name == "<same>":
	    if project != None:
		rp.name = project
	    else : 
		raise service_error(\
			service_error.server_config,
			"Project matched <same> when no project given")
	elif found[0].name == "<dynamic>":
	    rp.name = None
	    dyn_proj = True
	else:
	    rp.name = found[0].name
	rp.node_types = found[0].node_types;

	if found[1] == "<same>":
	    if user_match == "<any>":
		if user != None: ru = user[0]
		else: raise service_error(\
			service_error.server_config,
			"Matched <same> on anonymous request")
	    else:
		ru = user_match
	elif found[1] == "<dynamic>":
	    ru = None
	    dyn_user = True
	
	return (rp, ru), (dyn_user, dyn_proj)

    def build_response(self, alloc_id, ap):
	"""
	Create the SOAP response.

	Build the dictionary description of the response and use
	fedd_utils.pack_soap to create the soap message.  NB that alloc_id is
	a fedd_services_types.IDType_Holder pulled from the incoming message.
	ap is the allocate project message returned from a remote project
	allocation (even if that allocation was done locally).
	"""
	# Because alloc_id is already a fedd_services_types.IDType_Holder,
	# there's no need to repack it
	msg = { 
		'allocID': alloc_id,
		'emulab': { 
		    'domain': self.domain,
		    'boss': self.boss,
		    'ops': self.ops,
		    'fileServer': self.fileserver,
		    'eventServer': self.eventserver,
		    'project': ap['project']
		},
	    }
	if len(self.attrs) > 0:
	    msg['emulab']['fedAttr'] = \
		[ { 'attribute': x, 'value' : y } \
			for x,y in self.attrs.iteritems()]
	return msg

    def RequestAccess(self, req, fid):

	if req.has_key('RequestAccessRequestBody'):
	    req = req['RequestAccessRequestBody']
	else:
	    raise service_error(service_error.req, "No request!?")

	if req.has_key('destinationTestbed'):
	    dt = unpack_id(req['destinationTestbed'])
	
	if dt == None or dt == self.testbed:
	    # Request for this fedd
	    found, dyn = self.lookup_access(req, fid)
	    restricted = None
	    ap = None

	    # Check for access to restricted nodes
	    if req.has_key('resources') and req['resources'].has_key('node'):
		resources = req['resources']
		restricted = [ t for n in resources['node'] \
				if n.has_key('hardware') \
				    for t in n['hardware'] \
					if t in self.restricted ]
		inaccessible = [ t for t in restricted \
				    if t not in found[0].node_types]
		if len(inaccessible) > 0:
		    raise service_error(service_error.access,
			    "Access denied (nodetypes %s)" % \
			    str(', ').join(inaccessible))

	    ssh = [ x['sshPubkey'] \
		    for x in req['access'] if x.has_key('sshPubkey')]

	    if len(ssh) > 0: 
		if dyn[1]: 
		    # Compose the dynamic project request 
		    # (only dynamic, dynamic currently allowed)
		    preq = { 'AllocateProjectRequestBody': \
				{ 'project' : {\
				    'user': [ \
				    { 'access': [ { 'sshPubkey': s } ] } \
					for s in ssh ] \
				    }\
				}\
			    }
		    if restricted != None and len(restricted) > 0:
			preq['AllocateProjectRequestBody']['resources'] = \
			    [ {'node': { 'hardware' :  [ h ] } } \
				    for h in restricted ]
				
		    ap = self.allocate_project.dynamic_project(preq)
		else:
		    # XXX ssh key additions
		    ap = { 'project': \
			    { 'name' : { 'localname' : found[0].name },\
			      'user' : [ {\
				'userID': { 'localname' : found[1] }, \
				'access': [ { 'sshPubkey': s } for s in ssh]}\
				]\
			    }\
		    }
	    else:
		raise service_error(service_error.req, 
			"SSH access parameters required")

	    resp = self.build_response(req['allocID'], ap)
	    return resp
	else:
	    p_fault = None	# Any SOAP failure (sent unless XMLRPC works)
	    try:
		# Proxy the request using SOAP
		return self.proxy_request(dt, req)
	    except service_error, e:
		if e.code == service_error.proxy: p_fault = None
		else: raise
	    except ZSI.FaultException, f:
		p_fault = f.fault.detail[0]
		    

	    # If we could not get a valid SOAP response to the request above,
	    # try the same address using XMLRPC and let any faults flow back
	    # out.
	    if p_fault == None:
		return self.proxy_xmlrpc_request(dt, req)
	    else:
		# Build the fault
		body = p_fault.get_element_FeddFaultBody()
		if body != None:
		    raise service_error(body.get_element_code(),
				body.get_element_desc());
		else:
		    raise service_error(\
			    service_error.proxy,
			    "Undefined fault from proxy??");


    def soap_AllocateProject(self, ps, fid):
	req = ps.Parse(AllocateProjectRequestMessage.typecode)

	msg = self.allocate_project.dynamic_project(unpack_soap(req), fedid)

	resp = AllocateProjectResponseMessage()
	resp.set_element_AllocateProjectResponseBody(
		pack_soap(resp, "AllocateProjectResponseBody", msg))

	return resp

    def soap_RequestAccess(self, ps, fid):
	req = ps.Parse(RequestAccessRequestMessage.typecode)

	msg = self.RequestAccess(unpack_soap(req), fedid)

	resp = RequestAccessResponseMessage()
	resp.set_element_RequestAccessResponseBody(
		pack_soap(resp, "RequestAccessResponseBody", msg))

	return resp

    def soap_Create(self, ps, fid):
	req = ps.Parse(CreateRequestMessage.typecode)

	msg = self.create_experiment.create_experiment(unpack_soap(req), fedid)

	resp = CreateResponseMessage()
	resp.set_element_CreateResponseBody(
		pack_soap(resp, "CreateResponseBody", msg))

	return resp


    def soap_Vtopo(self, ps, fid):
	req = ps.Parse(VtopoRequestMessage.typecode)

	msg = self.create_experiment.get_vtopo(unpack_soap(req), fedid)

	resp = VtopoResponseMessage()
	resp.set_element_VtopoResponseBody(
		pack_soap(resp, "VtopoResponseBody", msg))

	return resp

    def soap_Vis(self, ps, fid):
	req = ps.Parse(VisRequestMessage.typecode)

	msg = self.create_experiment.get_vis(unpack_soap(req), fedid)

	resp = VisResponseMessage()
	resp.set_element_VisResponseBody(
		pack_soap(resp, "VisResponseBody", msg))

	return resp

    def xmlrpc_RequestAccess(self, params, fid):
	msg = self.RequestAccess(params[0], fedid)

	if msg != None:
	    return encapsulate_binaries({ "RequestAccessResponseBody": msg },
		    ('fedid',))
	else:
	    raise service_error(service_error.internal,
		    "No response generated?!");

    def xmlrpc_Create(self, params, fid):
	msg = self.create_experiment.create_experiment(params[0], fedid)

	if msg != None:
	    return encapsulate_binaries({ "CreateResponseBody" : msg },
		    ('fedid',))
	else:
	    raise service_error(service_error.internal,
		    "No response generated?!");

    def xmlrpc_Vtopo(self, params, fid):
	p = decapsulate_binaries(params[0], ('fedid',))
	msg = self.create_experiment.get_vtopo(p, fedid)

	if msg != None:
	    return encapsulate_binaries({ "VtopoResponseBody" : msg },
		    ('fedid',))
	else:
	    raise service_error(service_error.internal,
		    "No response generated?!");

    def xmlrpc_Vis(self, params, fid):
	p = decapsulate_binaries(params[0], ('fedid',))
	msg = self.create_experiment.get_vis(p, fedid)

	if msg != None:
	    return encapsulate_binaries({ "VisResponseBody" : msg },
		    ('fedid',))
	else:
	    raise service_error(service_error.internal,
		    "No response generated?!");

    def read_trust(self, trust):
	"""
	Read a trust file that splits fedids into testbeds, users or projects

	Format is:

	[type]
	fedid
	fedid
	default: type
	"""
	lineno = 0;
	cat = None
	cat_re = re.compile("\[(user|testbed|project)\]$", re.IGNORECASE)
	fedid_re = re.compile("[" + string.hexdigits + "]+$")
	default_re = re.compile("default:\s*(user|testbed|project)$", 
		re.IGNORECASE)

	f = open(trust, "r")
	for line in f:
	    lineno += 1
	    line = line.strip()
	    if len(line) == 0 or line.startswith("#"):
		continue
	    # Category line
	    m = cat_re.match(line)
	    if m != None:
		cat = m.group(1).lower()
		continue
	    # Fedid line
	    m = fedid_re.match(line)
	    if m != None:
		if cat != None:
		    self.fedid_category[fedid(hexstr=m.string)] = cat
		else:
		    raise fedd_proj.parse_error(\
			    "Bad fedid in trust file (%s) line: %d" % \
			    (trust, lineno))
		continue
	    # default line
	    m = default_re.match(line)
	    if m != None:
		self.fedid_default = m.group(1).lower()
		continue
	    # Nothing matched - bad line, raise exception
	    f.close()
	    raise fedd_proj.parse_error(\
		    "Unparsable line in trustfile %s line %d" % (trust, lineno))
	f.close()

    def read_config(self, config):
	"""
	Read a configuration file and set internal parameters.

	The format is more complex than one might hope.  The basic format is
	attribute value pairs separated by colons(:) on a signle line.  The
	attributes in bool_attrs, emulab_attrs and id_attrs can all be set
	directly using the name: value syntax.  E.g. 
	boss: hostname
	sets self.boss to hostname.  In addition, there are access lines of the
	form (tb, proj, user) -> (aproj, auser) that map the first tuple of
	names to the second for access purposes.  Names in the key (left side)
	can include "<NONE> or <ANY>" to act as wildcards or to require the
	fields to be empty.  Similarly aproj or auser can be <SAME> or
	<DYNAMIC> indicating that either the matching key is to be used or a
	dynamic user or project will be created.  These names can also be
	federated IDs (fedid's) if prefixed with fedid:.  Finally, the aproj
	can be followed with a colon-separated list of node types to which that
	project has access (or will have access if dynamic).
	Testbed attributes outside the forms above can be given using the
	format attribute: name value: value.  The name is a single word and the
	value continues to the end of the line.  Empty lines and lines startin
	with a # are ignored.

	Parsing errors result in a parse_error exception being raised.
	"""
	lineno=0
	name_expr = "["+string.ascii_letters + string.digits + "\.\-_]+"
	fedid_expr = "fedid:[" + string.hexdigits + "]+"
	key_name = "(<ANY>|<NONE>|"+fedid_expr + "|"+ name_expr + ")"
	access_proj = "(<DYNAMIC>(?::" + name_expr +")*|"+ \
		"<SAME>" + "(?::" + name_expr + ")*|" + \
		fedid_expr + "(?::" + name_expr + ")*|" + \
		name_expr + "(?::" + name_expr + ")*)"
	access_name = "(<DYNAMIC>|<SAME>|" + fedid_expr + "|"+ name_expr + ")"

	bool_re = re.compile('(' + '|'.join(fedd_proj.bool_attrs) + 
		'):\s+(true|false)', re.IGNORECASE)
	string_re = re.compile( "(" + \
		'|'.join(fedd_proj.emulab_attrs + fedd_proj.id_attrs) + \
		'):\s*(.*)', re.IGNORECASE)
	attr_re = re.compile('attribute:\s*([\._\-a-z0-9]+)\s+value:\s*(.*)',
		re.IGNORECASE)
	access_re = re.compile('\('+key_name+'\s*,\s*'+key_name+'\s*,\s*'+
		key_name+'\s*\)\s*->\s*\('+access_proj + '\s*,\s*' + 
		access_name + '\s*\)', re.IGNORECASE)
	trustfile_re = re.compile("trustfile:\s*(.*)", re.IGNORECASE)
	restricted_re = re.compile("restricted:\s*(.*)", re.IGNORECASE)

	def parse_name(n):
	    if n.startswith('fedid:'): return fedid(n[len('fedid:'):])
	    else: return n

	f = open(config, "r");
	for line in f:
	    lineno += 1
	    line = line.strip();
	    if len(line) == 0 or line.startswith('#'):
		continue

	    # Boolean attribute line
	    m = bool_re.match(line);
	    if m != None:
		attr, val = m.group(1,2)
		setattr(self, attr.lower(), bool(val.lower() == "true"))
		continue

	    # String attribute line
	    m = string_re.match(line)
	    if m != None:
		attr, val = m.group(1,2)
		setattr(self, attr.lower(), val)
		continue

	    # Extended (attribute: x value: y) attribute line
	    m = attr_re.match(line)
	    if m != None:
		attr, val = m.group(1,2)
		self.attrs[attr] = val
		continue

	    # Access line (t, p, u) -> (ap, au) line
	    m = access_re.match(line)
	    if m != None:
		access_key = tuple([ parse_name(x) for x in m.group(1,2,3)])
		aps = m.group(4).split(":");
		if aps[0] == 'fedid:':
		    del aps[0]
		    aps[0] = fedid(hexstr=aps[0])

		au = m.group(5)
		if au.startswith("fedid:"):
		    au = fedid(hexstr=aus[len("fedid:"):])

		access_val = (fedd_proj.access_project(aps[0], aps[1:]), au)

		self.access[access_key] = access_val
		continue

	    # Trustfile inclusion
	    m = trustfile_re.match(line)
	    if m != None:
		self.read_trust(m.group(1))
		continue
	    # Restricted node types

	    m = restricted_re.match(line)
	    if m != None:
		self.restricted.append(m.group(1))
		continue

	    # Nothing matched to here: unknown line - raise exception
	    f.close()
	    raise fedd_proj.parse_error("Unknown statement at line %d of %s" % \
		    (lineno, config))
	f.close()

    def soap_dispatch(self, method, req, fid):
	if fedd_proj.soap_methods.has_key(method):
	    try:
		return getattr(self, fedd_proj.soap_methods[method])(req, fid)
	    except service_error, e:
		de = ns0.faultType_Def(
			(ns0.faultType_Def.schema,
			    "FeddFaultBody")).pyclass()
		de._code=e.code
		de._errstr=e.code_string()
		de._desc=e.desc
		if  e.is_server_error():
		    raise Fault(Fault.Server, e.code_string(), detail=de)
		else:
		    raise Fault(Fault.Client, e.code_string(), detail=de)
	else:
	    raise Fault(Fault.Client, "Unknown method: %s" % method)

    def xmlrpc_dispatch(self, method, req, fid):
	if fedd_proj.xmlrpc_methods.has_key(method):
	    try:
		return getattr(self, fedd_proj.xmlrpc_methods[method])(req, fid)
	    except service_error, e:
		raise xmlrpclib.Fault(e.code_string(), e.desc)
	else:
	    raise xmlrpclib.Fault(100, "Unknown method: %s" % method)

def new_feddservice(configfile):
    return fedd_proj(configfile)