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templater.py
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templater.py
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from io import StringIO
from shutil import copyfileobj
from pathvalidate import ValidationError, validate_filename
from string import ascii_uppercase, ascii_lowercase
from qunetsim.components import Network
backends = {
1: {'name': 'EQSN', 'import': 'EQSNBackend'},
2: {'name': 'CQC', 'import': 'CQCBackend'},
3: {'name': 'QuTip', 'import': 'QuTipBackend'},
4: {'name': 'ProjectQ', 'import': 'ProjectQBackend'},
}
topologies = dict()
for i in range(0, len(Network.topologies)):
topologies[i + 1] = list(Network.topologies.keys())[i]
def prompt_valid_filename() -> str:
valid_filename = False
while not valid_filename:
file_name = input("Name for this template (default: template): ")
if file_name == "":
file_name = "template.py"
valid_filename = True
else:
try:
validate_filename(file_name)
file_name += ".py"
valid_filename = True
except ValidationError as e:
print("----That is an invalid template name.")
print("----{}".format(e))
return file_name
def prompt_valid_num() -> int:
valid_number = False
while not valid_number:
num_nodes = input("How many hosts (nodes) are in the network?" +
" (default: 3): ")
if num_nodes == "":
valid_number = True
num_nodes = 3
try:
if 52 < int(num_nodes):
print("----This template maker is currently limited to 52 " +
"nodes. If this does not meet your needs, please " +
"notify the project maintainers.")
elif int(num_nodes) < 2:
print("----Please enter a valid integer value.")
else:
valid_number = True
num_nodes = int(num_nodes)
if num_nodes >= 15:
print("---Please be aware simulation performance may " +
"suffer with networks larger than around 15 nodes.")
except ValueError as e:
print("----Please enter a valid integer value.")
return num_nodes
def prompt_host_names(num_hosts: int) -> list:
default_host_names = list(ascii_uppercase) + list(ascii_lowercase)
host_names = []
default_check = input("To customize the host names," +
" enter any character before pressing " +
"enter: ")
if default_check == "":
for i in range(0, num_hosts):
host_names.append(default_host_names[i])
return host_names
print(" You have chosen to customize your {} host names."
.format(num_hosts))
for i in range(0, num_hosts):
valid_entry = False
while not valid_entry:
host_name = input("Please choose a name for host {} (default: "
.format(i + 1) + "{}) : "
.format(default_host_names[i]))
if host_name == "":
host_name = default_host_names[i]
elif not host_name.isalnum():
print("----Please enter a valid host name. Host names must "
"consist entirely of alphanumeric values.")
continue
if host_name in host_names:
print("----Please choose a unique host name. This one already"
" exists in your network.")
else:
valid_entry = True
host_names.append(host_name)
return host_names
def prompt_backend() -> int:
backend_options = {
i: backends[i]['name'] for i in range(1, len(backends) + 1)
}
valid_entry = False
while not valid_entry:
print("Your backend options are {}".format(backend_options))
choice = input("Please enter the number of your desired backend " +
"(default: 1): ")
if choice == "":
valid_entry = True
choice = 1
try:
if 0 < int(choice) < len(backend_options) + 1:
valid_entry = True
choice = int(choice)
else:
raise ValueError
except ValueError as e:
print("----Please enter a valid number for your choice of " +
"backend.")
return choice
def prompt_topology() -> int:
valid_entry = False
while not valid_entry:
print("Your topology options are {}".format(topologies))
choice = input("Please enter the number of your desired topology " +
"(default: 3): ")
if choice == "":
valid_entry = True
choice = 3
try:
if 0 < int(choice) < len(topologies) + 1:
valid_entry = True
choice = int(choice)
else:
raise ValueError
except ValueError as e:
print("----Please enter a valid number for your choice of " +
"backend.")
return choice
# def prompt_eavesdropper(host_names: list) -> str:
# valid_entry = False
# decision = False
# while not valid_entry:
# choice = input("Would you like to designate one of your hosts " +
# "as an eavesdropper? (Default: no) ")
# if choice == "":
# choice = "n"
# try:
# if choice.lower() == "y" or choice.lower() == "yes":
# valid_entry = True
# decision = True
# elif choice.lower() == "n" or choice.lower() == "no":
# valid_entry = True
# else:
# raise ValueError
# except ValueError as e:
# print("----Please enter a (y)es or (n)o answer.")
#
# if not decision:
# return ""
# else:
# valid_entry = False
# host_options = {
# i + 1: host_names[i] for i in range(0, len(host_names))
# }
# while not valid_entry:
# print("Your hosts are {}".format(host_options))
# choice = input("Please choose the number of the host which " +
# "should be set as an eavesdropper (Default: 1). ")
# if choice == "":
# valid_entry = True
# choice = 1
# try:
# if 0 < int(choice) < len(host_options) + 1:
# valid_entry = True
# choice = int(choice)
# else:
# raise ValueError
# except ValueError as e:
# print("----Please enter a valid number for your choice of " +
# "eavesdropper.")
# return host_names[choice - 1]
def gen_import_statements(backend_num: int) -> StringIO:
imports = StringIO()
imports.write("from qunetsim.components import Host, Network\n")
imports.write("from qunetsim.objects import Message, Qubit, Logger\n")
imports.write("from qunetsim.backends import " +
backends[backend_num]['import'] + '\n')
imports.write("Logger.DISABLED = True\n\n")
imports.write("# create the " + backends[backend_num]['name'] +
" backend object\n")
imports.write("backend = " + backends[backend_num]['import'] + "()\n\n\n")
imports.seek(0)
return imports
def gen_protocols(sniffer_host: str) -> StringIO:
sniffer_host = sniffer_host.lower()
protocols = StringIO()
if sniffer_host != "":
protocols.write("def " + sniffer_host + "_sniffing_quantum(" +
"sender, receiver, qubit):\n")
protocols.write(" # This is just a sample sniffing protocol\n")
protocols.write(" # " + sniffer_host.capitalize() + " applies an " +
"X operation to all qubits routed through it\n")
protocols.write(" qubit.X()\n\n\n")
protocols.write("def " + sniffer_host + "_sniffing_classical(" +
"sender, receiver, msg):\n")
protocols.write(" # This is just a sample sniffing protocol\n")
protocols.write(" # " + sniffer_host.capitalize() + " modifies " +
"the content of all classical messages routed " +
"through it\n")
protocols.write(" if isinstance(msg, Message):\n")
protocols.write(" msg.content = \"** " +
sniffer_host.capitalize() + " was here :) ** \" " +
"+ msg.content\n\n\n")
protocols.write("def protocol_1(host, receiver):\n")
protocols.write(" # Here we write the protocol code for a host.\n")
protocols.write(" for i in range(5):\n")
protocols.write(" s = 'Hi {}.'.format(receiver)\n")
protocols.write(" print(\"{} sends: {}\"" +
".format(host.host_id, s))\n")
protocols.write(" host.send_classical(receiver, s," +
" await_ack=True)\n")
protocols.write(" for i in range(5):\n")
protocols.write(" q = Qubit(host)\n")
protocols.write(" q.X()\n")
protocols.write(" print(\"{} sends qubit in the |1> state\"" +
".format(host.host_id))\n")
protocols.write(" host.send_qubit(receiver, q, " +
"await_ack=True)\n\n\n")
protocols.write("def protocol_2(host, sender):\n")
protocols.write(" # Here we write the protocol code for another host." +
"\n")
protocols.write(" for i in range(5):\n")
protocols.write(" sender_message = host.get_classical(sender, " +
"wait=5, seq_num=i)\n")
protocols.write(" print(\"{} Received classical: {}\"" +
".format(host.host_id, sender_message.content))\n")
protocols.write(" for i in range(5):\n")
protocols.write(" q = host.get_qubit(sender, wait=10)\n")
protocols.write(" m = q.measure()\n")
protocols.write(" print(\"{} measured: {}\"" +
".format(host.host_id, m))\n\n\n")
protocols.seek(0)
return protocols
def gen_main(topology: int, host_names: list) -> StringIO:
main_content = StringIO()
main_content.write("def main():\n")
main_content.write(" network = Network.get_instance()\n")
main_content.write(" nodes = " + str(host_names) + "\n")
main_content.write(" network.generate_topology(nodes, \'" +
topologies[topology] + "\')\n")
main_content.write(" network.start(nodes)\n\n")
for n in host_names:
main_content.write(" host_" + n.lower() + " = network.get_host(\'"
+ n + "\')\n")
main_content.write("\n")
main_content.seek(0)
return main_content
def gen_eavesdropper(eavesdropping_host_name: str) -> StringIO:
sniffer_content = StringIO()
if eavesdropping_host_name == "":
return sniffer_content
sniffer_host = "host_" + eavesdropping_host_name.lower()
sniffer_content.write(" " + sniffer_host +
".quantum_relay_sniffing = True\n")
sniffer_content.write(" " + sniffer_host +
".quantum_relay_sniffing_function = " +
eavesdropping_host_name.lower() +
"_sniffing_quantum\n\n")
sniffer_content.write(" " + sniffer_host +
".relay_sniffing = True\n")
sniffer_content.write(" " + sniffer_host +
".relay_sniffing_function = " +
eavesdropping_host_name.lower() +
"_sniffing_classical\n\n")
sniffer_content.seek(0)
return sniffer_content
def gen_run(host_names: list) -> StringIO:
main_run = StringIO()
main_run.write(" t1 = host_" + host_names[0].lower() +
".run_protocol(protocol_1, (host_" +
host_names[-1].lower() + ".host_id,))\n")
main_run.write(" t2 = host_" + host_names[-1].lower() +
".run_protocol(protocol_2, (host_" +
host_names[0].lower() + ".host_id,), blocking=True)\n")
main_run.write(" network.stop(True)\n\n\n")
main_run.seek(0)
return main_run
if __name__ == '__main__':
file_name = prompt_valid_filename()
num_nodes = prompt_valid_num()
host_names = prompt_host_names(num_nodes)
back_end = prompt_backend()
topology = prompt_topology()
# eavesdropper = prompt_eavesdropper(host_names)
eavesdropper = ""
file_closing = StringIO()
file_closing.write("if __name__ == '__main__':\n")
file_closing.write(" main()\n")
file_closing.seek(0)
with open(file_name, 'w') as f:
copyfileobj(gen_import_statements(back_end), f)
copyfileobj(gen_protocols(eavesdropper), f)
copyfileobj(gen_main(topology, host_names), f)
copyfileobj(gen_eavesdropper(eavesdropper), f)
copyfileobj(gen_run(host_names), f)
copyfileobj(file_closing, f)