PyBitmessage/src/class_namecoin.py

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import json
from jsonrpc import ServiceProxy, JSONRPCException
# This class handles the Namecoin identity integration.
class namecoinConnection(object):
def __init__(self):
user = "daniel"
password = "password"
host = "localhost"
port = "8336"
self.s = ServiceProxy("http://" + user + ":" + password
+ "@" + host + ":" + port)
# Query for the bitmessage address corresponding to the given identity
# string. If it doesn't contain a slash, id/ is prepended. We return
# the result as (Error, Address) pair, where the Error is an error
# message to display or None in case of success.
def query(self,string):
slashPos = string.find("/")
if slashPos < 0:
string = "id/" + string
try:
res = self.s.name_show(string)
except JSONRPCException as err:
if err.error["code"] == -4:
return ("The name '" + string + "' was not found.", None)
else:
return ("The namecoin query failed ("
+ err.error["message"] + ")", None)
except:
return ("The namecoin query failed.", None)
try:
print res["value"]
val = json.loads(res["value"])
except:
return ("The name '" + string + "' has no valid JSON data.", None)
if "bitmessage" in val:
return (None, val["bitmessage"])
return ("The name '" + string
+ "' has no associated Bitmessage address.", None)