def __init__(self, *args, **kwargs):
'''
Creates a socket. As of now, we try to get the ccnx key from the default location
'''
super(CcnxSocket, self).__init__()
self.ccnx_key = CCN.getDefaultKey()
self.ccnx_key_locator = pyccn.KeyLocator(self.ccnx_key)
self.ccnx_handle = CCN()
self.event_loop = CcnxLoop(self.ccnx_handle)
def __init__(self, *args, **kwargs): ''' Creates a socket. As of now, we try to get the ccnx key from the default location ''' super(CcnxSocket, self).__init__() self.ccnx_key = CCN.getDefaultKey() self.ccnx_key_locator = pyccn.KeyLocator(self.ccnx_key) self.ccnx_handle = CCN() self.event_loop = CcnxLoop(self.ccnx_handle)
print(os.getcwd())
root = os.path.join("tmp")
private_pem1 = os.path.join(root, 'private1.pem')
public_pem1 = os.path.join(root, 'public1.pem')
private_pem2 = os.path.join(root, 'private2.pem')
public_pem2 = os.path.join(root, 'public2.pem')
def rm_files(*list):
for file in list:
if os.path.exists(file):
os.remove(file)
rm_files(private_pem1, public_pem1, private_pem2, public_pem2)
k = CCN.getDefaultKey()
k.privateToPEM(filename=private_pem1)
k.publicToPEM(filename=public_pem1)
k2 = Key()
k2.fromPEM(filename=private_pem1)
k2.privateToPEM(filename=private_pem2)
k2.publicToPEM(filename=public_pem2)
assert(filecmp.cmp(private_pem1, private_pem2))
assert(filecmp.cmp(public_pem1, public_pem2))
print(b64encode(k.publicKeyID))
print(b64encode(k2.publicKeyID))
assert(k.publicKeyID == k2.publicKeyID)
locator1 = _pyccn.KeyLocator_to_ccn(name=ccn_name1)
print(locator1)
locator1_obj = _pyccn.KeyLocator_obj_from_ccn(locator1)
print(locator1_obj)
print(locator1_obj.keyName)
name2 = _pyccn.name_comps_from_ccn(locator1_obj.keyName.ccn_data)
print(name2)
for comp1, comp2 in zip(name1, name2):
if comp1 != comp2:
raise AssertionError("Got a different output: '%s' != '%s'" % (comp1, comp2))
key1 = CCN.getDefaultKey()
locator2 = _pyccn.KeyLocator_to_ccn(key=key1.ccn_data_public)
print(locator2)
locator2_obj = _pyccn.KeyLocator_obj_from_ccn(locator2)
key2 = locator2_obj.key
print(key2)
print(key1.ccn_data_public)
print(key2.ccn_data_public)
assert(key1.publicToDER() == key2.publicToDER())
del key2
key2 = _pyccn.Key_obj_from_ccn(key1.ccn_data_private)
from pyccn import Interest, Name, Key, CCN, _pyccn
import datetime
k = CCN.getDefaultKey()
i = Interest()
i.name = Name('/hello/world')
i.minSuffixComponents = 2
i.maxSuffixComponents = 4
i.publisherPublicKeyDigest = k.publicKeyID
i.exclude = None
i.childSelector = 1
i.answerOriginKind = 4
i.scope = 2
i.interestLifetime = 30.0
i.nonce = b'abababa'
print(i)
print(i.ccn_data)
i2 = _pyccn.Interest_obj_from_ccn(i.ccn_data)
print(i2)
assert (i.name == i2.name)
assert (i.minSuffixComponents == i2.minSuffixComponents)
assert (i.maxSuffixComponents == i2.maxSuffixComponents)
assert (i.publisherPublicKeyDigest == i2.publisherPublicKeyDigest)
assert (i.exclude == i2.exclude)
assert (i.childSelector == i2.childSelector)
assert (i.scope == i2.scope)
assert (i.interestLifetime == i2.interestLifetime)
class TyzxServer(Closure):
def __init__(self, prefixstr ):
self.handle = CCN()
#XXX: temporary, until we allow fetching key from key storage
self.key = self.handle.getDefaultKey()
self.keylocator = KeyLocator(self.key)
self.prefix = Name(prefixstr)
# member_name = Name.Name(self.members_uri)
# member_name.appendKeyID(fix_digest(self.key.publicKeyID))
# self.member_message = self.publish(member_name, nick)
def listen(self):
#listen to requests in namespace
self.handle.setInterestFilter(self.prefix, self)
self.handle.run(-1)
def publish(self, name, content):
# Name
#print name
# SignedInfo
si = pyccn.SignedInfo()
#si.type = pyccn.CCN_CONTENT_DATA
si.type = 0x0C04C0 # content type
si.finalBlockID = b'\x00'
si.publisherPublicKeyDigest = self.key.publicKeyID
si.keyLocator = self.keylocator
si.freshnessSeconds = FRESHNESS_SECONDS
# ContentObject
co = ContentObject()
co.content = content
co.name = name
co.signedInfo = si
co.sign(self.key)
return co
def upcall(self, kind, upcallInfo):
global lasttime
if lasttime is None: # can't answer yet
return pyccn.RESULT_OK
if len(tyzxObjs.objs)<1:
return pyccn.RESULT_OK
interest = upcallInfo.Interest
#print "Interest", interest.name, time.time()
# CALL content matches interest to check exclusion on versions
#
#print interest.exclude
name = interest.name
#print name
if name==self.prefix: # root
#print "Request for root: %s" % str(name)
if interest.exclude is None:
freshids = tyzxObjs.objs.keys()[0:1]
else:
if len(interest.exclude.components) > 0:
ids = set(tyzxObjs.objs.keys())# new stuff we have
suffixes = set([int(str(s)[1:]) for s in interest.exclude.components])
freshids = list(ids.difference(suffixes)) # do we need this conversion?
#print "ids", ids
#print "suffixes", suffixes
#print "freshids", freshids
else:
freshids = tyzxObjs.objs.keys()[0:1]
if len(freshids)>0:
child = freshids[0]
else:
return pyccn.RESULT_OK # no new content
else: # should check what we're receiving! take next component
child = int(name.components[-1:][0]) # why not be able to do this on name?
#print "Request for child: %s" % child, time.time()
#print "child - ", child
if tyzxObjs.objs.has_key(child):
O = tyzxObjs.objs[child]
else:
# Don't want to respond with a nonexistent. NDN way is to not answer interest.
# If we've just started, we may not even know what the content store knows.
# But, we do want to answer "exits" that we know about.
#print "child", child, "is not present"
if tyzxObjs.objExits.has_key(child):
#print "child", child, "is exited"
O = tyzxObjs.objExits[child]
else:
return pyccn.RESULT_OK
#O = CompositeObject(BaseObject())
#O.time = lasttime.time
#O.id = int(child)
#O.status = "nonexistent"
msgname = Name(self.prefix)
msgname += str(child)
msgname.components.append(versionFromTime (O.time)) # should have msgname.append
#msgname.ccn_data_dirty=True - now handled within PyCCN
# need binary add component
self.message = self.publish(msgname, O.toJSON())
#print "Publishing", msgname, O.toJSON()
#print "Present:", tyzxObjs.objs.keys(), time.time()
self.handle.put(self.message)
return pyccn.RESULT_INTEREST_CONSUMED
return pyccn.RESULT_OK
from pyccn import CCN c = CCN() k = c.getDefaultKey()
class TyzxServer(Closure):
def __init__(self, prefixstr):
self.handle = CCN()
#XXX: temporary, until we allow fetching key from key storage
self.key = self.handle.getDefaultKey()
self.keylocator = KeyLocator(self.key)
self.prefix = Name(prefixstr)
# member_name = Name.Name(self.members_uri)
# member_name.appendKeyID(fix_digest(self.key.publicKeyID))
# self.member_message = self.publish(member_name, nick)
def listen(self):
#listen to requests in namespace
self.handle.setInterestFilter(self.prefix, self)
self.handle.run(-1)
def publish(self, name, content):
# Name
#print name
# SignedInfo
si = pyccn.SignedInfo()
#si.type = pyccn.CCN_CONTENT_DATA
si.type = 0x0C04C0 # content type
si.finalBlockID = b'\x00'
si.publisherPublicKeyDigest = self.key.publicKeyID
si.keyLocator = self.keylocator
si.freshnessSeconds = FRESHNESS_SECONDS
# ContentObject
co = ContentObject()
co.content = content
co.name = name
co.signedInfo = si
co.sign(self.key)
return co
def upcall(self, kind, upcallInfo):
global lasttime
if lasttime is None: # can't answer yet
return pyccn.RESULT_OK
if len(tyzxObjs.objs) < 1:
return pyccn.RESULT_OK
interest = upcallInfo.Interest
#print "Interest", interest.name, time.time()
# CALL content matches interest to check exclusion on versions
#
#print interest.exclude
name = interest.name
#print name
if name == self.prefix: # root
#print "Request for root: %s" % str(name)
if interest.exclude is None:
freshids = tyzxObjs.objs.keys()[0:1]
else:
if len(interest.exclude.components) > 0:
ids = set(tyzxObjs.objs.keys()) # new stuff we have
suffixes = set(
[int(str(s)[1:]) for s in interest.exclude.components])
freshids = list(ids.difference(
suffixes)) # do we need this conversion?
#print "ids", ids
#print "suffixes", suffixes
#print "freshids", freshids
else:
freshids = tyzxObjs.objs.keys()[0:1]
if len(freshids) > 0:
child = freshids[0]
else:
return pyccn.RESULT_OK # no new content
else: # should check what we're receiving! take next component
child = int(
name.components[-1:][0]) # why not be able to do this on name?
#print "Request for child: %s" % child, time.time()
#print "child - ", child
if tyzxObjs.objs.has_key(child):
O = tyzxObjs.objs[child]
else:
# Don't want to respond with a nonexistent. NDN way is to not answer interest.
# If we've just started, we may not even know what the content store knows.
# But, we do want to answer "exits" that we know about.
#print "child", child, "is not present"
if tyzxObjs.objExits.has_key(child):
#print "child", child, "is exited"
O = tyzxObjs.objExits[child]
else:
return pyccn.RESULT_OK
#O = CompositeObject(BaseObject())
#O.time = lasttime.time
#O.id = int(child)
#O.status = "nonexistent"
msgname = Name(self.prefix)
msgname += str(child)
msgname.components.append(versionFromTime(
O.time)) # should have msgname.append
#msgname.ccn_data_dirty=True - now handled within PyCCN
# need binary add component
self.message = self.publish(msgname, O.toJSON())
#print "Publishing", msgname, O.toJSON()
#print "Present:", tyzxObjs.objs.keys(), time.time()
self.handle.put(self.message)
return pyccn.RESULT_INTEREST_CONSUMED
return pyccn.RESULT_OK
