from threading import Timer
from datetime import datetime
handle = _pyccn.create()
try:
_pyccn.run(handle, 100)
except _pyccn.CCNError:
pass
else:
raise AssertionError("ccn_run() should fail when not connected")
del handle
c = CCN()
c.run(0)
def change_timeout():
print("Changing timeout!")
c.setRunTimeout(1000)
t = Timer(0.1, change_timeout)
t.start()
org_start = datetime.now()
while True:
if (datetime.now() - org_start).seconds > 3:
raise AssertionError("setRunTimeout() failed")
from pyccn import CCN, Name, Interest, Closure
from time import sleep
worked = False
class MyClosure(Closure):
def upcall(self, kind, upcallInfo):
global worked
print("Got response")
print(kind)
print(upcallInfo)
worked = True
n = Name("ccnx:/ccnx/ping")
i = Interest()
closure = MyClosure()
c = CCN()
res = c.expressInterest(n, closure, i)
print(res)
#causes crashes
c.run(10)
print("Ha!")
assert(worked)
if __name__ == "__main__":
print "prefix", prefix
processIncoming = ProcessIncoming()
while (True):
T = time.time()
if T - lastdiscovertime > DISCOVER_INTEREST_PERIOD:
interestDiscover.exclude = ExclusionFilter()
interestDiscover.exclude.add_names(
[Name([key]) for key in tyzxObjects.keys()])
interestDiscover.exclude.add_names(
[Name([key]) for key in oldObjects])
ccn.expressInterest(interestDiscover.name, processIncoming,
interestDiscover)
lastdiscovertime = time.time()
for obj in tyzxObjects.values():
if T - obj.lastinteresttime < UPDATE_INTEREST_PERIOD:
continue
interestUpdate.name = Name(prefix)
interestUpdate.name += str(obj.id)
interestUpdate.exclude = ExclusionFilter()
interestUpdate.exclude.add_any()
n = Name()
n.components.append(versionFromTime(obj.time))
interestUpdate.exclude.add_name(n)
interestUpdate.exclude.add_name(Name([last_version_marker]))
interestUpdate.exclude.add_any()
ccn.expressInterest(interestUpdate.name, processIncoming,
interestUpdate)
obj.lastinteresttime = time.time()
ccn.run(CCN_WAIT_TIME_MS)
from pyccn import CCN, Name, Interest, Closure
from time import sleep
worked = False
class MyClosure(Closure):
def upcall(self, kind, upcallInfo):
global worked
print("Got response")
print(kind)
print(upcallInfo)
worked = True
n = Name("ccnx:/ccnx/ping")
i = Interest()
closure = MyClosure()
c = CCN()
res = c.expressInterest(n, closure, i)
print(res)
#causes crashes
c.run(10)
print("Ha!")
assert (worked)
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
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
for obj in tyzxObjects.values():
print obj.id,":", obj.x, obj.y, obj.z, obj.localupdatetime
if __name__ == "__main__":
print "prefix", prefix
processIncoming = ProcessIncoming()
while (True):
T = time.time()
if T-lastdiscovertime > DISCOVER_INTEREST_PERIOD:
interestDiscover.exclude = ExclusionFilter()
interestDiscover.exclude.add_names([Name([key]) for key in tyzxObjects.keys()])
interestDiscover.exclude.add_names([Name([key]) for key in oldObjects])
ccn.expressInterest(interestDiscover.name, processIncoming, interestDiscover)
lastdiscovertime = time.time()
for obj in tyzxObjects.values():
if T-obj.lastinteresttime < UPDATE_INTEREST_PERIOD:
continue
interestUpdate.name = Name(prefix)
interestUpdate.name += str(obj.id)
interestUpdate.exclude = ExclusionFilter()
interestUpdate.exclude.add_any()
n = Name()
n.components.append(versionFromTime(obj.time))
interestUpdate.exclude.add_name(n)
interestUpdate.exclude.add_name(Name([last_version_marker]))
interestUpdate.exclude.add_any()
ccn.expressInterest(interestUpdate.name, processIncoming, interestUpdate)
obj.lastinteresttime = time.time()
ccn.run(CCN_WAIT_TIME_MS)
