def main():
twist = Twister(
auth_key=auth_key,
listener=TwisterListener(
handler_class=EventHandler,
thread_count=3,
),
)
twist.handler.add_event((
{'name':'callback_one',
'callback' : cbone,
'allowuser' : ('User1', 'User2'),
'hashtag' : ('#you',),
'priority' : 2,
},
{'name':'callback_two',
'callback' : cbtwo,
'allowuser' : ('User3',),
'hashtag' : ('#python','#happy'),
'priority' : 1,
},)
)
twist.userstream(
count=None,
async=False,
secure=True,
daemon=True,)
def user_embed(self,username='******',style='normal'):
if username=='nobody': username='' # to enable /nobody/large
conf = cherrypy.request.app.config['swizzler']
twister = Twister(conf['rpc_url'],format_twist)
result = {
'title':'@{0} - Swizzler'.format(username),
'site_root':cherrypy.request.base+cherrypy.request.script_name,
'user':twister.get_user_info(username)
}
result['style_{0}'.format(style)] = True
return stache.render(stache.load_template('user-iframe'),result)
def search_embed(self,userprefix=''):
conf = cherrypy.request.app.config['swizzler']
twister = Twister(conf['rpc_url'],format_twist)
result = {'site_root':cherrypy.request.base+cherrypy.request.script_name}
userprefix = userprefix.strip().split(' ')[0]
if not userprefix.startswith('@'): userprefix = '@'+userprefix
if len(userprefix)>1:
result['user_prefix'] = userprefix
result['users'] = twister.get_users_by_partial_name(userprefix[1:],conf['num_messages'])
else:
result['trending'] = format_trending(twister,3*conf['num_messages']) # no avatar = about 1/3 height :)
return stache.render(stache.load_template('search'),result)
def test_twister(self):
"""
Very basic check to see if the twister works
"""
r = random.Random()
numbers = [r.getrandbits(32) for i in range(624)]
t = Twister()
t.backtrack(numbers)
for i in range(int(1e4)):
self.assertEqual(t.getrandbits(32), r.getrandbits(32))
def main(args):
# move to starting position
rl = RobotLibrary(args.robot, joystick=False)
rl.move(args.x, args.y, 0.0)
# configure
twister = Twister(args.robot, rci=rl._rci)
twister.dof = 'Rz' # most stable, due to each wheel contributing the same
twister.speed = args.vRz
twister.repeats = args.numRepeats
twister.duration = args.duration
twister.disableVisionLoc = True # the point of this procedure is to compare vision with encoders
twister.accelerationLimit = 2.0 # must prevent wheel slip
# run
twister.run()
class MotionRangeTwister():
def __init__(self, args):
# setup control and state reader
self.rl = RobotLibrary(args.robot, joystick=False)
# get ball and move to starting position
self.homePosition = (args.x, args.y, 0.0)
self.reset()
# other settings
self.dof = args.dof
self.v = None
self.accRange = None
self.setRange() # sensible defaults for v and accRange
# setup twister, reuse connected RCI
self.twister = Twister(args.robot, rci=self.rl._rci)
self.twister.dof = self.dof
self.twister.duration = 1.0
self.twister.sleep = 0.5
self.twister.repeats = args.numRepeats
self.twister.disableVisionLoc = True
def setRange(self):
# default acceleration range and speed setpoint
self.v = 0.5
step = 0.2
if (self.dof == 'Rz'):
self.v = 2.0
step = 0.5
self.accRange = [step * n for n in range(6,20)] # bh_verification
self.accRange = [step*2 * n for n in range(10,20)] # motion_verification
def reset(self):
self.rl.move(*self.homePosition)
def info(self, msg):
# write to RDL eventlog
os.system('frun diagnostics sendEvent INFO "' + msg + '"')
# write to stdout
print(msg, end='')
sys.stdout.flush() # TODO remove, can use print() argument flush=True when migrating to python3
def run(self):
# run
for a in self.accRange:
self.reset()
isRz = (self.dof == 'Rz')
self.info("testing {0} a={1:.2f}{2}2 at v={3:.2f}{2}...".format(self.dof, a, ['m/s', 'rad/s'][isRz], self.v))
self.twister.speed = self.v
self.twister.accelerationLimit = a
self.twister.run()
def user(self,username='******'):
if username=='nobody':
raise cherrypy.HTTPRedirect('/') # promoted posts are nobody's profile
conf = cherrypy.request.app.config['swizzler']
twister = Twister(conf['rpc_url'],format_twist)
user = twister.get_user_info(username)
messages = twister.get_user_posts(username,conf['num_messages'])
result = {
'is_user':True,
'title':u"{fullname} (@{username}): Profile - Swizzler".format(**user),
'subject':user,
'messages':messages,
'any_messages':not not messages,
'local_users':twister.local_user_menu()['users'],
'info':twister.get_info(),
'site_root':cherrypy.request.base+cherrypy.request.script_name,
}
return stache.render(stache.load_template('standard'),result)
def __init__(self, args):
# setup control and state reader
self.rl = RobotLibrary(args.robot, joystick=False)
# get ball and move to starting position
self.homePosition = (args.x, args.y, 0.0)
self.reset()
# other settings
self.dof = args.dof
self.v = None
self.accRange = None
self.setRange() # sensible defaults for v and accRange
# setup twister, reuse connected RCI
self.twister = Twister(args.robot, rci=self.rl._rci)
self.twister.dof = self.dof
self.twister.duration = 1.0
self.twister.sleep = 0.5
self.twister.repeats = args.numRepeats
self.twister.disableVisionLoc = True
def tag(self,tag=''):
tag = tag.strip().split(' ')[0]
if tag.startswith('#'): tag = tag[1:]
if not tag:
raise cherrypy.HTTPRedirect('/') # go home to promoted posts
conf = cherrypy.request.app.config['swizzler']
twister = Twister(conf['rpc_url'],format_twist)
messages = twister.get_tag_posts(tag)
result = {
'is_tag':True,
'title':u"#{0} - Swizzler".format(tag),
'subject':{"fullname":tag},
'messages':messages,
'any_messages':not not messages,
'local_users':twister.local_user_menu()['users'],
'info':twister.get_info(),
'site_root':cherrypy.request.base+cherrypy.request.script_name,
}
return stache.render(stache.load_template('standard'),result)
def break_twister_time(first_output, max_time=None):
"""
Given the first output of a MersenneTwister seeded with a timestamp,
brute-forces and returns the seed.
"""
max_time = max_time or int(time.time()) + 100
if isinstance(first_output, int):
test = lambda seed: Twister(seed).next() == first_output
else:
blank = b'\x00' * len(first_output)
test = lambda seed: twister_encrypt(seed, blank) == first_output
return next(seed for seed in range(max_time, 0, -1) if test(seed))
def main():
twist = Twister(auth_key=auth_key, listener=TwisterListener(handler_class=EventHandler, thread_count=3))
twist.handler.add_event(
(
{
"name": "callback_one",
"callback": cbone,
"allowuser": ("User1", "User2"),
"hashtag": ("#you",),
"priority": 2,
},
{
"name": "callback_two",
"callback": cbtwo,
"allowuser": ("User3",),
"hashtag": ("#python", "#happy"),
"priority": 1,
},
)
)
twist.userstream(count=None, async=False, secure=True, daemon=True)
def home(self,localusername='******',mode='feed'):
if localusername=='nobody':
raise cherrypy.HTTPRedirect('/') # promoted posts are nobody's home
conf = cherrypy.request.app.config['swizzler']
twister = Twister(conf['rpc_url'],format_twist)
menu = twister.local_user_menu(localusername)
if mode=='mentions':
messages = twister.get_user_mentions(localusername)
else:
messages = twister.get_user_feed(localusername,conf['num_messages'])
result = {
'is_home':True,
'is_mentions':mode=='mentions',
'is_feed':mode!='mentions',
'title':u"{fullname} (@{username}): {mode} - Swizzler".format(mode=mode=='mentions' and 'Mentions' or 'Home',**menu['active']),
'local_users':menu['users'],
'info':twister.get_info(),
'subject':menu['active'],
'messages':messages,
'any_messages':not not messages,
'site_root':cherrypy.request.base+cherrypy.request.script_name,
}
return stache.render(stache.load_template('standard'),result)
def index(self):
conf = cherrypy.request.app.config['swizzler']
twister = Twister(conf['rpc_url'],format_twist)
messages = twister.get_promoted_posts(conf['num_messages'])
result = {
'is_user':True, # i.e. we want to display "bio" and not mentions/DMs/profile buttons
'is_promoted':True, # message template needs to know not to show "permalink"
'title':"Welcome to Swizzler",
'local_users':twister.local_user_menu('')['users'], # '' means: "Nobody" is active
'info':twister.get_info(),
'subject':{ # pseudo-user describing promoted posts
'fullname':'Promoted posts',
'bio':format_twist("""
Mining the twister blockchain protects the #twister-verse from attacks like http://twister.net.co/?p=236
but unlike doge, we don't have shiny coins to offer "our protectors".
Instead, they enjoy occasional minutes of fame in the form of the promoted posts you see here.
We #Respect their hard earned crypto-graffiti by appreciating them on coffee/spliff/soy-milk/etc. breaks, because that's how we roll yo.
Start mining today, and this (𝐚𝐧𝐝 moral satisfaction) can be yours.""")
},
'messages':messages,
'any_messages':not not messages,
'site_root':cherrypy.request.base+cherrypy.request.script_name,
}
return stache.render(stache.load_template('standard'),result)
def twist(self,username,k):
conf = cherrypy.request.app.config['swizzler']
twister = Twister(conf['rpc_url'],format_twist)
twist = twister.get_twist(username,k)
twist['style_large'] = True
rts = twister.get_twist_rts(username,k)
replies = twister.get_twist_replies(username,k)
result = {
'is_twist':True,
'title':u"@{0}: {1} - Swizzler".format(username,twist['time']),
'twist':twist,
'in_reply_to':twist.get('reply') and twister.get_twist(twist['reply']['username'],twist['reply']['k']) or None,
'replies':replies,
'any_replies':not not replies,
'rts':rts,
'any_rts':not not rts,
'local_users':twister.local_user_menu()['users'],
'info':twister.get_info(),
'site_root':cherrypy.request.base+cherrypy.request.script_name,
}
return stache.render(stache.load_template('twist'),result)
def generate_output(bits1, bits2, verify):
"""Fill our rule-base with outputs from MT
:param bits1: number of bits from MT output
:param bits2: number of bits in MT
:param ((bitarray, bitarray)) -> None verify: verify function
:rtype: list[(bitarray, bitarray)]
"""
twister = Twister(N)
iterator = iter_bits_8_bit(twister)
data = []
for i in xrange(bits1):
print "Generating output bit %d/%d" % (i, bits1)
bitfield1 = [0] * bits1
bitfield2 = [0] * bits2
val = next(iterator)
bitfield1[i] = 1
for j in val:
bitfield2[j] = 1
bitfield1 = bitarray(bitfield1)
bitfield2 = bitarray(bitfield2)
data.append((bitfield1, bitfield2))
verify(data[len(data) - 1])
return data
def messages(self,localusername,remoteusername=None):
conf = cherrypy.request.app.config['swizzler']
twister = Twister(conf['rpc_url'],format_twist)
localuser = twister.get_user_info(localusername)
remoteuser = remoteusername and twister.get_user_info(remoteusername) or None
threads = remoteusername and twister.get_user_messages(localusername,remoteusername,conf['num_messages']) or twister.get_user_messages(localusername)
result = {
'is_messages':True,
'title':u"{0} (@{1}): direct messages{2}".format(
localuser['fullname'],localuser['username'],
remoteuser and u" with {fullname} (@{username}) - Swizzler".format(**remoteuser) or ""),
'subject':localuser,
'remoteuser':remoteuser,
'threads':threads,
'any_threads':not not threads,
'local_users':twister.local_user_menu()['users'],
'info':twister.get_info(),
'site_root':cherrypy.request.base+cherrypy.request.script_name,
}
return stache.render(stache.load_template('messages'),result)
def twister_encrypt(seed, data):
"""
"Encrypts" data with a MersenneTwister generator seeded with the given
value. Please don't pretend this is cryptography.
"""
return stream_encrypt(Twister(seed).stream8(), data)
