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 rspec_type = self.config.get_aggregate_rspec_type()
123 if (rspec_type == 'pl' or rspec_type == 'vini'):
124 self.plshell = self.getPLCShell()
125 self.plshell_version = self.getPLCShellVersion()
127 self.hrn = self.config.SFA_INTERFACE_HRN
128 self.time_format = "%Y-%m-%d %H:%M:%S"
129 self.logger=get_sfa_logger()
131 def getPLCShell(self):
132 self.plauth = {'Username': self.config.SFA_PLC_USER,
133 'AuthMethod': 'password',
134 'AuthString': self.config.SFA_PLC_PASSWORD}
136 self.plshell_type = 'direct'
138 shell = PLC.Shell.Shell(globals = globals())
139 shell.AuthCheck(self.plauth)
142 self.plshell_type = 'xmlrpc'
144 url = self.config.SFA_PLC_URL
145 shell = xmlrpclib.Server(url, verbose = 0, allow_none = True)
146 shell.AuthCheck(self.plauth)
149 def getPLCShellVersion(self):
150 # We need to figure out what version of PLCAPI we are talking to.
151 # Some calls we need to make later will be different depending on
154 # This is probably a bad way to determine api versions
155 # but its easy and will work for now. Lets try to make
156 # a call that only exists is PLCAPI.4.3. If it fails, we
157 # can assume the api version is 4.2
158 self.plshell.GetTagTypes(self.plauth)
164 def getCredential(self):
165 if self.interface in ['registry']:
166 return self.getCredentialFromLocalRegistry()
168 return self.getCredentialFromRegistry()
171 def getCredentialFromRegistry(self):
173 Get our credential from a remote registry using a geniclient connection
176 path = self.config.SFA_BASE_DIR
177 filename = ".".join([self.interface, self.hrn, type, "cred"])
178 cred_filename = path + os.sep + filename
180 credential = Credential(filename = cred_filename)
183 from sfa.server.registry import Registries
184 registries = Registries(self)
185 registry = registries[self.hrn]
186 self_cred = registry.get_credential(None, type, self.hrn)
187 cred = registry.get_credential(self_cred, type, self.hrn)
188 cred.save_to_file(cred_filename, save_parents=True)
191 def getCredentialFromLocalRegistry(self):
193 Get our current credential directly from the local registry.
197 auth_hrn = self.auth.get_authority(hrn)
199 # is this a root or sub authority
200 if not auth_hrn or hrn == self.config.SFA_INTERFACE_HRN:
202 auth_info = self.auth.get_auth_info(auth_hrn)
204 records = table.findObjects(hrn)
208 type = record['type']
209 object_gid = record.get_gid_object()
210 new_cred = Credential(subject = object_gid.get_subject())
211 new_cred.set_gid_caller(object_gid)
212 new_cred.set_gid_object(object_gid)
213 new_cred.set_issuer(key=auth_info.get_pkey_object(), subject=auth_hrn)
214 new_cred.set_pubkey(object_gid.get_pubkey())
215 r1 = determine_rights(type, hrn)
216 new_cred.set_privileges(r1)
218 auth_kind = "authority,ma,sa"
220 new_cred.set_parent(self.auth.hierarchy.get_auth_cred(auth_hrn, kind=auth_kind))
228 def loadCredential (self):
230 Attempt to load credential from file if it exists. If it doesnt get
231 credential from registry.
234 # see if this file exists
235 # XX This is really the aggregate's credential. Using this is easier than getting
236 # the registry's credential from iteslf (ssl errors).
237 ma_cred_filename = self.config.SFA_BASE_DIR + os.sep + self.interface + self.hrn + ".ma.cred"
239 self.credential = Credential(filename = ma_cred_filename)
241 self.credential = self.getCredentialFromRegistry()
244 # Convert geni fields to PLC fields for use when registering up updating
245 # registry record in the PLC database
247 # @param type type of record (user, slice, ...)
248 # @param hrn human readable name
249 # @param geni_fields dictionary of geni fields
250 # @param pl_fields dictionary of PLC fields (output)
252 def geni_fields_to_pl_fields(self, type, hrn, record):
254 def convert_ints(tmpdict, int_fields):
255 for field in int_fields:
257 tmpdict[field] = int(tmpdict[field])
260 #for field in record:
261 # pl_record[field] = record[field]
264 if not "instantiation" in pl_record:
265 pl_record["instantiation"] = "plc-instantiated"
266 pl_record["name"] = hrn_to_pl_slicename(hrn)
268 pl_record["url"] = record["url"]
269 if "description" in record:
270 pl_record["description"] = record["description"]
273 if not "hostname" in pl_record:
274 if not "hostname" in record:
275 raise MissingGeniInfo("hostname")
276 pl_record["hostname"] = record["hostname"]
277 if not "model" in pl_record:
278 pl_record["model"] = "geni"
280 elif type == "authority":
281 pl_record["login_base"] = hrn_to_pl_login_base(hrn)
283 if not "name" in pl_record:
284 pl_record["name"] = hrn
286 if not "abbreviated_name" in pl_record:
287 pl_record["abbreviated_name"] = hrn
289 if not "enabled" in pl_record:
290 pl_record["enabled"] = True
292 if not "is_public" in pl_record:
293 pl_record["is_public"] = True
297 def fill_record_pl_info(self, record):
299 Fill in the planetlab specific fields of a Geni record. This
300 involves calling the appropriate PLC method to retrieve the
301 database record for the object.
303 PLC data is filled into the pl_info field of the record.
305 @param record: record to fill in field (in/out param)
307 type = record['type']
308 pointer = record['pointer']
311 # records with pointer==-1 do not have plc info associated with them.
312 # for example, the top level authority records which are
313 # authorities, but not PL "sites"
318 if (type in ["authority"]):
319 pl_res = self.plshell.GetSites(self.plauth, [pointer])
320 elif (type == "slice"):
321 pl_res = self.plshell.GetSlices(self.plauth, [pointer])
322 elif (type == "user"):
323 pl_res = self.plshell.GetPersons(self.plauth, [pointer])
324 elif (type == "node"):
325 pl_res = self.plshell.GetNodes(self.plauth, [pointer])
327 raise UnknownGeniType(type)
330 raise PlanetLabRecordDoesNotExist(record['hrn'])
332 # convert ids to hrns
333 pl_record = pl_res[0]
334 if 'site_id' in pl_record:
335 sites = self.plshell.GetSites(self.plauth, pl_record['site_id'], ['login_base'])
337 login_base = site['login_base']
338 pl_record['site'] = ".".join([auth_hrn, login_base])
339 if 'person_ids' in pl_record:
340 persons = self.plshell.GetPersons(self.plauth, pl_record['person_ids'], ['email'])
341 emails = [person['email'] for person in persons]
342 usernames = [email.split('@')[0] for email in emails]
343 person_hrns = [".".join([auth_hrn, login_base, username]) for username in usernames]
344 pl_record['persons'] = person_hrns
345 if 'slice_ids' in pl_record:
346 slices = self.plshell.GetSlices(self.plauth, pl_record['slice_ids'], ['name'])
347 slicenames = [slice['name'] for slice in slices]
348 slice_hrns = [slicename_to_hrn(auth_hrn, slicename) for slicename in slicenames]
349 pl_record['slices'] = slice_hrns
350 if 'node_ids' in pl_record:
351 nodes = self.plshell.GetNodes(self.plauth, pl_record['node_ids'], ['hostname'])
352 hostnames = [node['hostname'] for node in nodes]
353 node_hrns = [hostname_to_hrn(auth_hrn, login_base, hostname) for hostname in hostnames]
354 pl_record['nodes'] = node_hrns
355 if 'site_ids' in pl_record:
356 sites = self.plshell.GetSites(self.plauth, pl_record['site_ids'], ['login_base'])
357 login_bases = [site['login_base'] for site in sites]
358 site_hrns = [".".join([auth_hrn, lbase]) for lbase in login_bases]
359 pl_record['sites'] = site_hrns
360 if 'key_ids' in pl_record:
361 keys = self.plshell.GetKeys(self.plauth, pl_record['key_ids'])
364 pubkeys = [key['key'] for key in keys]
365 pl_record['keys'] = pubkeys
367 record.update(pl_record)
371 def fill_record_geni_info(self, record):
373 type = record['type']
375 if (type == "slice"):
376 person_ids = record.get("person_ids", [])
377 persons = table.find({'type': 'user', 'pointer': person_ids})
378 researchers = [person['hrn'] for person in persons]
379 geni_info['researcher'] = researchers
381 elif (type == "authority"):
382 person_ids = record.get("person_ids", [])
383 persons = table.find({'type': 'user', 'pointer': person_ids})
385 for person in persons:
386 persons_dict[person['pointer']] = person
387 pl_persons = self.plshell.GetPersons(self.plauth, person_ids, ['person_id', 'roles'])
388 pis, techs, admins = [], [], []
389 for person in pl_persons:
390 pointer = person['person_id']
392 if pointer not in persons_dict:
393 # this means there is not sfa record for this user
395 hrn = persons_dict[pointer]['hrn']
396 if 'pi' in person['roles']:
398 if 'tech' in person['roles']:
400 if 'admin' in person['roles']:
403 geni_info['PI'] = pis
404 geni_info['operator'] = techs
405 geni_info['owner'] = admins
406 # xxx TODO: OrganizationName
408 elif (type == "node"):
409 geni_info['dns'] = record.get("hostname", "")
410 # xxx TODO: URI, LatLong, IP, DNS
412 elif (type == "user"):
413 geni_info['email'] = record.get("email", "")
414 # xxx TODO: PostalAddress, Phone
416 record.update(geni_info)
418 def fill_record_info(self, record):
420 Given a geni record, fill in the PLC specific and Geni specific
421 fields in the record.
423 self.fill_record_pl_info(record)
424 self.fill_record_geni_info(record)
426 def update_membership_list(self, oldRecord, record, listName, addFunc, delFunc):
427 # get a list of the HRNs tht are members of the old and new records
429 oldList = oldRecord.get(listName, [])
432 newList = record.get(listName, [])
434 # if the lists are the same, then we don't have to update anything
435 if (oldList == newList):
438 # build a list of the new person ids, by looking up each person to get
442 records = table.find({'type': 'user', 'hrn': newList})
444 newIdList.append(rec['pointer'])
446 # build a list of the old person ids from the person_ids field
448 oldIdList = oldRecord.get("person_ids", [])
449 containerId = oldRecord.get_pointer()
451 # if oldRecord==None, then we are doing a Register, instead of an
454 containerId = record.get_pointer()
456 # add people who are in the new list, but not the oldList
457 for personId in newIdList:
458 if not (personId in oldIdList):
459 addFunc(self.plauth, personId, containerId)
461 # remove people who are in the old list, but not the new list
462 for personId in oldIdList:
463 if not (personId in newIdList):
464 delFunc(self.plauth, personId, containerId)
466 def update_membership(self, oldRecord, record):
467 if record.type == "slice":
468 self.update_membership_list(oldRecord, record, 'researcher',
469 self.plshell.AddPersonToSlice,
470 self.plshell.DeletePersonFromSlice)
471 elif record.type == "authority":
476 def callable(self, method):
478 Return a new instance of the specified method.
481 if method not in self.methods:
482 raise GeniInvalidAPIMethod, method
484 # Get new instance of method
486 classname = method.split(".")[-1]
487 module = __import__("sfa.methods." + method, globals(), locals(), [classname])
488 callablemethod = getattr(module, classname)(self)
489 return getattr(module, classname)(self)
490 except ImportError, AttributeError:
492 raise GeniInvalidAPIMethod, method
494 def call(self, source, method, *args):
496 Call the named method from the specified source with the
499 function = self.callable(method)
500 function.source = source
501 return function(*args)
503 def handle(self, source, data):
505 Handle an XML-RPC or SOAP request from the specified source.
507 # Parse request into method name and arguments
509 interface = xmlrpclib
510 (args, method) = xmlrpclib.loads(data)
511 methodresponse = True
513 if SOAPpy is not None:
515 (r, header, body, attrs) = parseSOAPRPC(data, header = 1, body = 1, attrs = 1)
518 # XXX Support named arguments
523 result = self.call(source, method, *args)
524 except Exception, fault:
525 traceback.print_exc(file = log)
526 # Handle expected faults
527 if interface == xmlrpclib:
529 methodresponse = None
530 elif interface == SOAPpy:
531 result = faultParameter(NS.ENV_T + ":Server", "Method Failed", method)
532 result._setDetail("Fault %d: %s" % (fault.faultCode, fault.faultString))
537 if interface == xmlrpclib:
538 if not isinstance(result, GeniFault):
541 data = xmlrpclib.dumps(result, methodresponse = True, encoding = self.encoding, allow_none = 1)
542 elif interface == SOAPpy:
543 data = buildSOAP(kw = {'%sResponse' % method: {'Result': result}}, encoding = self.encoding)