2 # Geniwrapper XML-RPC and SOAP interfaces
14 from sfa.trust.auth import Auth
15 from sfa.util.config import *
16 from sfa.util.faults import *
17 from sfa.util.debug import *
18 from sfa.trust.rights import *
19 from sfa.trust.credential import *
20 from sfa.util.misc import *
21 from sfa.util.sfalogging import *
22 from sfa.util.genitable import *
24 # See "2.2 Characters" in the XML specification:
26 # #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD]
28 # [#x7F-#x84], [#x86-#x9F], [#xFDD0-#xFDDF]
30 invalid_xml_ascii = map(chr, range(0x0, 0x8) + [0xB, 0xC] + range(0xE, 0x1F))
31 xml_escape_table = string.maketrans("".join(invalid_xml_ascii), "?" * len(invalid_xml_ascii))
33 def xmlrpclib_escape(s, replace = string.replace):
35 xmlrpclib does not handle invalid 7-bit control characters. This
36 function augments xmlrpclib.escape, which by default only replaces
37 '&', '<', and '>' with entities.
40 # This is the standard xmlrpclib.escape function
41 s = replace(s, "&", "&")
42 s = replace(s, "<", "<")
43 s = replace(s, ">", ">",)
45 # Replace invalid 7-bit control characters with '?'
46 return s.translate(xml_escape_table)
48 def xmlrpclib_dump(self, value, write):
50 xmlrpclib cannot marshal instances of subclasses of built-in
51 types. This function overrides xmlrpclib.Marshaller.__dump so that
52 any value that is an instance of one of its acceptable types is
53 marshalled as that type.
55 xmlrpclib also cannot handle invalid 7-bit control characters. See
59 # Use our escape function
60 args = [self, value, write]
61 if isinstance(value, (str, unicode)):
62 args.append(xmlrpclib_escape)
65 # Try for an exact match first
66 f = self.dispatch[type(value)]
69 # Try for an isinstance() match
70 for Type, f in self.dispatch.iteritems():
71 if isinstance(value, Type):
74 raise TypeError, "cannot marshal %s objects" % type(value)
78 # You can't hide from me!
79 xmlrpclib.Marshaller._Marshaller__dump = xmlrpclib_dump
81 # SOAP support is optional
84 from SOAPpy.Parser import parseSOAPRPC
85 from SOAPpy.Types import faultType
86 from SOAPpy.NS import NS
87 from SOAPpy.SOAPBuilder import buildSOAP
92 def import_deep(name):
93 mod = __import__(name)
94 components = name.split('.')
95 for comp in components[1:]:
96 mod = getattr(mod, comp)
101 # flat list of method names
103 methods = sfa.methods.all
105 def __init__(self, config = "/etc/sfa/sfa_config", encoding = "utf-8",
106 peer_cert = None, interface = None, key_file = None, cert_file = None):
107 self.encoding = encoding
109 # Better just be documenting the API
114 self.config = Config(config)
115 self.auth = Auth(peer_cert)
116 self.interface = interface
117 self.key_file = key_file
118 self.cert_file = cert_file
119 self.credential = None
121 # Initialize the PLC shell only if SFA wraps a myPLC
122 if (self.config.get_aggregate_rspec_type() == 'pl'):
123 self.plshell = self.getPLCShell()
124 self.plshell_version = self.getPLCShellVersion()
126 self.hrn = self.config.SFA_INTERFACE_HRN
127 self.time_format = "%Y-%m-%d %H:%M:%S"
128 self.logger=get_sfa_logger()
130 def getPLCShell(self):
131 self.plauth = {'Username': self.config.SFA_PLC_USER,
132 'AuthMethod': 'password',
133 'AuthString': self.config.SFA_PLC_PASSWORD}
135 self.plshell_type = 'direct'
137 shell = PLC.Shell.Shell(globals = globals())
138 shell.AuthCheck(self.plauth)
141 self.plshell_type = 'xmlrpc'
143 url = self.config.SFA_PLC_URL
144 shell = xmlrpclib.Server(url, verbose = 0, allow_none = True)
145 shell.AuthCheck(self.plauth)
148 def getPLCShellVersion(self):
149 # We need to figure out what version of PLCAPI we are talking to.
150 # Some calls we need to make later will be different depending on
153 # This is probably a bad way to determine api versions
154 # but its easy and will work for now. Lets try to make
155 # a call that only exists is PLCAPI.4.3. If it fails, we
156 # can assume the api version is 4.2
157 self.plshell.GetTagTypes(self.plauth)
163 def getCredential(self):
164 if self.interface in ['registry']:
165 return self.getCredentialFromLocalRegistry()
167 return self.getCredentialFromRegistry()
170 def getCredentialFromRegistry(self):
172 Get our credential from a remote registry using a geniclient connection
175 path = self.config.SFA_BASE_DIR
176 filename = ".".join([self.interface, self.hrn, type, "cred"])
177 cred_filename = path + os.sep + filename
179 credential = Credential(filename = cred_filename)
182 from sfa.server.registry import Registries
183 registries = Registries(self)
184 registry = registries[self.hrn]
185 self_cred = registry.get_credential(None, type, self.hrn)
186 cred = registry.get_credential(self_cred, type, self.hrn)
187 cred.save_to_file(cred_filename, save_parents=True)
190 def getCredentialFromLocalRegistry(self):
192 Get our current credential directly from the local registry.
196 auth_hrn = self.auth.get_authority(hrn)
198 # is this a root or sub authority
199 if not auth_hrn or hrn == self.config.SFA_INTERFACE_HRN:
201 auth_info = self.auth.get_auth_info(auth_hrn)
203 records = table.findObjects(hrn)
207 type = record['type']
208 object_gid = record.get_gid_object()
209 new_cred = Credential(subject = object_gid.get_subject())
210 new_cred.set_gid_caller(object_gid)
211 new_cred.set_gid_object(object_gid)
212 new_cred.set_issuer(key=auth_info.get_pkey_object(), subject=auth_hrn)
213 new_cred.set_pubkey(object_gid.get_pubkey())
214 r1 = determine_rights(type, hrn)
215 new_cred.set_privileges(r1)
217 auth_kind = "authority,ma,sa"
219 new_cred.set_parent(self.auth.hierarchy.get_auth_cred(auth_hrn, kind=auth_kind))
227 def loadCredential (self):
229 Attempt to load credential from file if it exists. If it doesnt get
230 credential from registry.
233 # see if this file exists
234 # XX This is really the aggregate's credential. Using this is easier than getting
235 # the registry's credential from iteslf (ssl errors).
236 ma_cred_filename = self.config.SFA_BASE_DIR + os.sep + self.interface + self.hrn + ".ma.cred"
238 self.credential = Credential(filename = ma_cred_filename)
240 self.credential = self.getCredentialFromRegistry()
243 # Convert geni fields to PLC fields for use when registering up updating
244 # registry record in the PLC database
246 # @param type type of record (user, slice, ...)
247 # @param hrn human readable name
248 # @param geni_fields dictionary of geni fields
249 # @param pl_fields dictionary of PLC fields (output)
251 def geni_fields_to_pl_fields(self, type, hrn, record):
253 def convert_ints(tmpdict, int_fields):
254 for field in int_fields:
256 tmpdict[field] = int(tmpdict[field])
259 #for field in record:
260 # pl_record[field] = record[field]
263 if not "instantiation" in pl_record:
264 pl_record["instantiation"] = "plc-instantiated"
265 pl_record["name"] = hrn_to_pl_slicename(hrn)
267 pl_record["url"] = record["url"]
268 if "description" in record:
269 pl_record["description"] = record["description"]
272 if not "hostname" in pl_record:
273 if not "hostname" in record:
274 raise MissingGeniInfo("hostname")
275 pl_record["hostname"] = record["hostname"]
276 if not "model" in pl_record:
277 pl_record["model"] = "geni"
279 elif type == "authority":
280 pl_record["login_base"] = hrn_to_pl_login_base(hrn)
282 if not "name" in pl_record:
283 pl_record["name"] = hrn
285 if not "abbreviated_name" in pl_record:
286 pl_record["abbreviated_name"] = hrn
288 if not "enabled" in pl_record:
289 pl_record["enabled"] = True
291 if not "is_public" in pl_record:
292 pl_record["is_public"] = True
296 def fill_record_pl_info(self, record):
298 Fill in the planetlab specific fields of a Geni record. This
299 involves calling the appropriate PLC method to retrieve the
300 database record for the object.
302 PLC data is filled into the pl_info field of the record.
304 @param record: record to fill in field (in/out param)
306 type = record['type']
307 pointer = record['pointer']
310 # records with pointer==-1 do not have plc info associated with them.
311 # for example, the top level authority records which are
312 # authorities, but not PL "sites"
317 if (type in ["authority"]):
318 pl_res = self.plshell.GetSites(self.plauth, [pointer])
319 elif (type == "slice"):
320 pl_res = self.plshell.GetSlices(self.plauth, [pointer])
321 elif (type == "user"):
322 pl_res = self.plshell.GetPersons(self.plauth, [pointer])
323 elif (type == "node"):
324 pl_res = self.plshell.GetNodes(self.plauth, [pointer])
326 raise UnknownGeniType(type)
329 raise PlanetLabRecordDoesNotExist(record['hrn'])
331 # convert ids to hrns
332 pl_record = pl_res[0]
333 if 'site_id' in pl_record:
334 sites = self.plshell.GetSites(self.plauth, pl_record['site_id'], ['login_base'])
336 login_base = site['login_base']
337 pl_record['site'] = ".".join([auth_hrn, login_base])
338 if 'person_ids' in pl_record:
339 persons = self.plshell.GetPersons(self.plauth, pl_record['person_ids'], ['email'])
340 emails = [person['email'] for person in persons]
341 usernames = [email.split('@')[0] for email in emails]
342 person_hrns = [".".join([auth_hrn, login_base, username]) for username in usernames]
343 pl_record['persons'] = person_hrns
344 if 'slice_ids' in pl_record:
345 slices = self.plshell.GetSlices(self.plauth, pl_record['slice_ids'], ['name'])
346 slicenames = [slice['name'] for slice in slices]
347 slice_hrns = [slicename_to_hrn(auth_hrn, slicename) for slicename in slicenames]
348 pl_record['slices'] = slice_hrns
349 if 'node_ids' in pl_record:
350 nodes = self.plshell.GetNodes(self.plauth, pl_record['node_ids'], ['hostname'])
351 hostnames = [node['hostname'] for node in nodes]
352 node_hrns = [hostname_to_hrn(auth_hrn, login_base, hostname) for hostname in hostnames]
353 pl_record['nodes'] = node_hrns
354 if 'site_ids' in pl_record:
355 sites = self.plshell.GetSites(self.plauth, pl_record['site_ids'], ['login_base'])
356 login_bases = [site['login_base'] for site in sites]
357 site_hrns = [".".join([auth_hrn, lbase]) for lbase in login_bases]
358 pl_record['sites'] = site_hrns
359 if 'key_ids' in pl_record:
360 keys = self.plshell.GetKeys(self.plauth, pl_record['key_ids'])
363 pubkeys = [key['key'] for key in keys]
364 pl_record['keys'] = pubkeys
366 record.update(pl_record)
370 def fill_record_geni_info(self, record):
372 type = record['type']
374 if (type == "slice"):
375 person_ids = record.get("person_ids", [])
376 persons = table.find({'type': 'user', 'pointer': person_ids})
377 researchers = [person['hrn'] for person in persons]
378 geni_info['researcher'] = researchers
380 elif (type == "authority"):
381 person_ids = record.get("person_ids", [])
382 persons = table.find({'type': 'user', 'pointer': person_ids})
384 for person in persons:
385 persons_dict[person['pointer']] = person
386 pl_persons = self.plshell.GetPersons(self.plauth, person_ids, ['person_id', 'roles'])
387 pis, techs, admins = [], [], []
388 for person in pl_persons:
389 pointer = person['person_id']
391 if pointer not in persons_dict:
392 # this means there is not sfa record for this user
394 hrn = persons_dict[pointer]['hrn']
395 if 'pi' in person['roles']:
397 if 'tech' in person['roles']:
399 if 'admin' in person['roles']:
402 geni_info['PI'] = pis
403 geni_info['operator'] = techs
404 geni_info['owner'] = admins
405 # xxx TODO: OrganizationName
407 elif (type == "node"):
408 geni_info['dns'] = record.get("hostname", "")
409 # xxx TODO: URI, LatLong, IP, DNS
411 elif (type == "user"):
412 geni_info['email'] = record.get("email", "")
413 # xxx TODO: PostalAddress, Phone
415 record.update(geni_info)
417 def fill_record_info(self, record):
419 Given a geni record, fill in the PLC specific and Geni specific
420 fields in the record.
422 self.fill_record_pl_info(record)
423 self.fill_record_geni_info(record)
425 def update_membership_list(self, oldRecord, record, listName, addFunc, delFunc):
426 # get a list of the HRNs tht are members of the old and new records
428 oldList = oldRecord.get(listName, [])
431 newList = record.get(listName, [])
433 # if the lists are the same, then we don't have to update anything
434 if (oldList == newList):
437 # build a list of the new person ids, by looking up each person to get
441 records = table.find({'type': 'user', 'hrn': newList})
443 newIdList.append(rec['pointer'])
445 # build a list of the old person ids from the person_ids field
447 oldIdList = oldRecord.get("person_ids", [])
448 containerId = oldRecord.get_pointer()
450 # if oldRecord==None, then we are doing a Register, instead of an
453 containerId = record.get_pointer()
455 # add people who are in the new list, but not the oldList
456 for personId in newIdList:
457 if not (personId in oldIdList):
458 addFunc(self.plauth, personId, containerId)
460 # remove people who are in the old list, but not the new list
461 for personId in oldIdList:
462 if not (personId in newIdList):
463 delFunc(self.plauth, personId, containerId)
465 def update_membership(self, oldRecord, record):
466 if record.type == "slice":
467 self.update_membership_list(oldRecord, record, 'researcher',
468 self.plshell.AddPersonToSlice,
469 self.plshell.DeletePersonFromSlice)
470 elif record.type == "authority":
475 def callable(self, method):
477 Return a new instance of the specified method.
480 if method not in self.methods:
481 raise GeniInvalidAPIMethod, method
483 # Get new instance of method
485 classname = method.split(".")[-1]
486 module = __import__("sfa.methods." + method, globals(), locals(), [classname])
487 callablemethod = getattr(module, classname)(self)
488 return getattr(module, classname)(self)
489 except ImportError, AttributeError:
491 raise GeniInvalidAPIMethod, method
493 def call(self, source, method, *args):
495 Call the named method from the specified source with the
498 function = self.callable(method)
499 function.source = source
500 return function(*args)
502 def handle(self, source, data):
504 Handle an XML-RPC or SOAP request from the specified source.
506 # Parse request into method name and arguments
508 interface = xmlrpclib
509 (args, method) = xmlrpclib.loads(data)
510 methodresponse = True
512 if SOAPpy is not None:
514 (r, header, body, attrs) = parseSOAPRPC(data, header = 1, body = 1, attrs = 1)
517 # XXX Support named arguments
522 result = self.call(source, method, *args)
523 except Exception, fault:
524 traceback.print_exc(file = log)
525 # Handle expected faults
526 if interface == xmlrpclib:
528 methodresponse = None
529 elif interface == SOAPpy:
530 result = faultParameter(NS.ENV_T + ":Server", "Method Failed", method)
531 result._setDetail("Fault %d: %s" % (fault.faultCode, fault.faultString))
536 if interface == xmlrpclib:
537 if not isinstance(result, GeniFault):
540 data = xmlrpclib.dumps(result, methodresponse = True, encoding = self.encoding, allow_none = 1)
541 elif interface == SOAPpy:
542 data = buildSOAP(kw = {'%sResponse' % method: {'Result': result}}, encoding = self.encoding)