def _getID(self):
"""
Returns a tuple: private key, public key, nodeID, private group ID, and
public group ID from config. If these values don't exist in conf file,
they are generated and added.
"""
# get the keys and IDs from the config file.
# If these values don't exist, generate a pub/priv key pair, nodeID,
# and groupIDs.
if not self.configParser.has_section("identification"):
self.configParser.add_section("identification")
try:
privkey = FludRSA.importPrivateKey(
eval(self.configParser.get("identification","Kr")))
except:
pubkey, privkey = FludCrypto.generateKeys()
else:
try:
pubkey = FludRSA.importPublicKey(
eval(self.configParser.get("identification","Ku")))
except:
pubkey = privkey.publickey()
try:
nodeID = self.configParser.get("identification","nodeID")
except:
#nodeID = FludCrypto.hashstring(str(pubkey.exportPublicKey()))
nodeID = pubkey.id()
try:
privgroupID = self.configParser.get("identification",
"groupIDr")[:64]
except:
privgroupID = 'fludtest' # default groupID hardcoded
try:
pubgroupID = self.configParser.get("identification","groupIDu")
except:
pubgroupID = FludCrypto.hashstring(str(pubkey.exportPublicKey())
+privgroupID)
# write the settings back out to config object
self.configParser.set("identification","Kr",privkey.exportPrivateKey())
self.configParser.set("identification","Ku",pubkey.exportPublicKey())
self.configParser.set("identification","nodeID",nodeID)
self.configParser.set("identification","groupIDr",privgroupID)
self.configParser.set("identification","groupIDu",pubgroupID)
# return the values
return privkey, pubkey, nodeID, privgroupID, pubgroupID
def updateNodes(client, config, nodes):
if nodes and not isinstance(nodes, list) and not isinstance(nodes, tuple):
raise TypeError("updateNodes must be called with node list, tuple,"
" or kData dict")
logger.debug("updateNodes(%s)" % nodes)
for i in nodes:
host = i[0]
port = i[1]
nID = i[2]
nKu = FludRSA.importPublicKey(i[3])
updateNode(client, config, host, port, nKu, nID)
def _getID(self, response, factory, host, port):
loggerid.debug( "received ID response: %s" % response)
if not hasattr(factory, 'status'):
raise failure.DefaultException(
"SENDGETID FAILED: no status in factory")
if eval(factory.status) != http.OK:
raise failure.DefaultException("SENDGETID FAILED to "+self.dest+": "
+"server sent status "+factory.status+", '"+response+"'")
try:
nKu = {}
nKu = eval(response)
nKu = FludRSA.importPublicKey(nKu)
loggerid.info("SENDGETID PASSED to %s" % self.dest)
updateNode(self.node.client, self.config, host, port, nKu)
return nKu
except:
raise failure.DefaultException("SENDGETID FAILED to "+self.dest+": "
+"received response, but it did not contain valid key")
def updateNode(client, config, host, port, nKu=None, nID=None):
"""
Updates this node's view of the given node. This includes updating
the known-nodes record, trust, and routing table information
"""
def updateNodeFail(failure, host, port):
logging.getLogger('flud').log(logging.INFO,
"couldn't get nodeID from %s:%d: %s" % (host, port, failure))
def callUpdateNode(nKu, client, config, host, port, nID):
return updateNode(client, config, host, port, nKu, nID)
if isinstance(nID, long):
nID = "%064x" % nID
if nKu is None:
#print "updateNode, no nKu"
if nID is None:
d = client.sendGetID(host, port)
d.addCallback(callUpdateNode, client, config, host, port, nID)
d.addErrback(updateNodeFail, host, port)
else:
#print "updateNode, no nKu but got a nID"
if config.nodes.has_key(nID):
return updateNode(client, config, host, port,
FludRSA.importPublicKey(config.nodes[nID]['Ku']), nID)
elif updateNodePendingGETID.has_key(nID):
pass
else:
#print "updateNode, sending GETID"
updateNodePendingGETID[nID] = True
d = client.sendGetID(host, port)
d.addCallback(callUpdateNode, client, config, host, port, nID)
d.addErrback(updateNodeFail, host, port)
elif isinstance(nKu, FludRSA):
#print "updateNode with nKu"
if updateNodePendingGETID.has_key(nID):
del updateNodePendingGETID[nID]
if nID == None:
nID = nKu.id()
elif nID != nKu.id():
raise ValueError("updateNode: given nID doesn't match given nKu."
" '%s' != '%s'" % (nID, nKu.id()))
# XXX: looks like an imposter -- instead of raising, mark host:port
# pair as bad (trust-- on host:port alone, since we don't know id).
if config.nodes.has_key(nID) == False:
config.addNode(nID, host, port, nKu)
# XXX: trust
# routing
node = (host, port, long(nID, 16), nKu.exportPublicKey()['n'])
replacee = config.routing.updateNode(node)
#logger.info("knownnodes now: %s" % config.routing.knownNodes())
#print "knownnodes now: %s" % config.routing.knownNodes()
if replacee != None:
logging.getLogger('flud').info(
"determining if replacement in ktable is needed")
s = SENDGETID(replacee[0], replacee[1])
s.addErrback(replaceNode, config.routing, replacee, node)
else:
#print "updateNode nKu=%s, type=%s" % (nKu, type(nKu))
logging.getLogger('flud').warn(
"updateNode can't update without a public key or nodeID")
frame = inspect.currentframe()
# XXX: try/except here for debugging only
try:
stack = inspect.stack()
for i in stack:
print "from %s:%d" % (i[1], i[2])
except:
print "couldn't get stack trace"
raise ValueError("updateNode needs an nKu of type FludRSA"
" (received %s) or an nID of type long or str (received %s)"
% (type(nKu), type(nID)))
required = ('nodeID', 'Ku_e', 'Ku_n', 'port')
params = requireParams(request, required)
except Exception, inst:
msg = "%s in request received by ID" % inst.args[0]
loggerid.info(msg)
request.setResponseCode(http.BAD_REQUEST, "Bad Request")
return msg
else:
loggerid.info("received ID request from %s..."
% params['nodeID'][:10])
loggerid.info("returning ID response")
#try:
reqKu = {}
reqKu['e'] = long(params['Ku_e'])
reqKu['n'] = long(params['Ku_n'])
reqKu = FludRSA.importPublicKey(reqKu)
if reqKu.id() != params['nodeID']:
request.setResponseCode(http.BAD_REQUEST, "Bad Identity")
return "requesting node's ID and public key do not match"
host = getCanonicalIP(request.getClientIP())
updateNode(self.node.client, self.config, host,
int(params['port']), reqKu, params['nodeID'])
return str(self.config.Ku.exportPublicKey())
#except:
# msg = "can't return ID"
# loggerid.log(logging.WARN, msg)
# request.setResponseCode(http.NO_CONTENT, msg)
# return msg
class FILE(ROOT):
""" data storage file operations: POST, GET, DELETE """