Namecoin fixes

- Namecoin support was broken, an anonymous contributor sent a patch,
  and I made another fix for keepalive connections.
This commit is contained in:
Peter Šurda 2016-08-17 17:26:00 +02:00
parent 4117195b61
commit 29abf0fa08
Signed by untrusted user: PeterSurda
GPG Key ID: 0C5F50C0B5F37D87
1 changed files with 58 additions and 35 deletions

View File

@ -20,6 +20,7 @@
import base64
import httplib
import json
import socket
import sys
@ -28,6 +29,11 @@ import os
import shared
import tr # translate
# FIXME: from debug import logger crashes PyBitmessage due to a circular
# dependency. The debug module will also override/disable logging.getLogger()
# loggers so module level logging functions are used instead
import logging as logger
configSection = "bitmessagesettings"
# Error thrown when the RPC call returns an error.
@ -36,6 +42,9 @@ class RPCError (Exception):
def __init__ (self, data):
self.error = data
def __str__(self):
return '{0}: {1}'.format(type(self).__name__, self.error)
# This class handles the Namecoin identity integration.
class namecoinConnection (object):
@ -46,6 +55,7 @@ class namecoinConnection (object):
nmctype = None
bufsize = 4096
queryid = 1
con = None
# Initialise. If options are given, take the connection settings from
# them instead of loading from the configs. This can be used to test
@ -55,18 +65,20 @@ class namecoinConnection (object):
if options is None:
self.nmctype = shared.config.get (configSection, "namecoinrpctype") = shared.config.get (configSection, "namecoinrpchost")
self.port = shared.config.get (configSection, "namecoinrpcport")
self.port = int(shared.config.get (configSection, "namecoinrpcport"))
self.user = shared.config.get (configSection, "namecoinrpcuser")
self.password = shared.config.get (configSection,
self.nmctype = options["type"] = options["host"]
self.port = options["port"]
self.port = int(options["port"])
self.user = options["user"]
self.password = options["password"]
assert self.nmctype == "namecoind" or self.nmctype == "nmcontrol"
if self.nmctype == "namecoind":
self.con = httplib.HTTPConnection(, self.port, timeout = 3)
# Query for the bitmessage address corresponding to the given identity
# string. If it doesn't contain a slash, id/ is prepended. We return
@ -85,21 +97,24 @@ class namecoinConnection (object):
res = self.callRPC ("data", ["getValue", string])
res = res["reply"]
if res == False:
raise RPCError ({"code": -4})
return (tr._translate("MainWindow",'The name %1 was not found.').arg(unicode(string)), None)
assert False
except RPCError as exc:
if exc.error["code"] == -4:
return (tr._translate("MainWindow",'The name %1 was not found.').arg(unicode(string)), None)
logger.exception("Namecoin query RPC exception")
if isinstance(exc.error, dict):
errmsg = exc.error["message"]
return (tr._translate("MainWindow",'The namecoin query failed (%1)').arg(unicode(exc.error["message"])), None)
errmsg = exc.error
return (tr._translate("MainWindow",'The namecoin query failed (%1)').arg(unicode(errmsg)), None)
except Exception as exc:
print "Namecoin query exception: %s" % str (exc)
logger.exception("Namecoin query exception")
return (tr._translate("MainWindow",'The namecoin query failed.'), None)
val = json.loads (res)
logger.exception("Namecoin query json exception")
return (tr._translate("MainWindow",'The name %1 has no valid JSON data.').arg(unicode(string)), None)
if "bitmessage" in val:
@ -132,14 +147,14 @@ class namecoinConnection (object):
if ("reply" in res) and res["reply"][:len(prefix)] == prefix:
return ('success', tr._translate("MainWindow",'Success! NMControll is up and running.'))
print "Unexpected nmcontrol reply: %s" % res
logger.error("Unexpected nmcontrol reply: %s", res)
return ('failed', tr._translate("MainWindow",'Couldn\'t understand NMControl.'))
assert False
except Exception as exc:
print "Namecoin connection test: %s" % str (exc)
except Exception:
logger.exception("Namecoin connection test failure")
return ('failed', "The connection to namecoin failed.")
# Helper routine that actually performs an JSON RPC call.
@ -155,35 +170,43 @@ class namecoinConnection (object):
if val["id"] != self.queryid:
raise Exception ("ID mismatch in JSON RPC answer.")
self.queryid = self.queryid + 1
if self.nmctype == "namecoind":
self.queryid = self.queryid + 1
if val["error"] is not None:
raise RPCError (val["error"])
error = val["error"]
if error is None:
return val["result"]
return val["result"]
if isinstance(error, bool):
raise RPCError (val["result"])
raise RPCError (error)
# Query the server via HTTP.
def queryHTTP (self, data):
header = "POST / HTTP/1.1\n"
header += "User-Agent: bitmessage\n"
header += "Host: %s\n" %
header += "Content-Type: application/json\n"
header += "Content-Length: %d\n" % len (data)
header += "Accept: application/json\n"
authstr = "%s:%s" % (self.user, self.password)
header += "Authorization: Basic %s\n" % base64.b64encode (authstr)
resp = self.queryServer ("%s\n%s" % (header, data))
lines = resp.split ("\r\n")
result = None
body = False
for line in lines:
if line == "" and not body:
body = True
elif body:
if result is not None:
raise Exception ("Expected a single line in HTTP response.")
result = line
self.con.putrequest("POST", "/")
self.con.putheader("Connection", "Keep-Alive")
self.con.putheader("User-Agent", "bitmessage")
self.con.putheader("Content-Type", "application/json")
self.con.putheader("Content-Length", str(len(data)))
self.con.putheader("Accept", "application/json")
authstr = "%s:%s" % (self.user, self.password)
self.con.putheader("Authorization", "Basic %s" % base64.b64encode (authstr))
resp = self.con.getresponse()
result =
if resp.status != 200:
raise Exception ("Namecoin returned status %i: %s", resp.status, resp.reason)
logger.error("HTTP receive error")
logger.error("HTTP connection error")
return result
@ -193,7 +216,7 @@ class namecoinConnection (object):
s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt (socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.connect ((, int (self.port)))
s.connect ((, self.port))
s.sendall (data)
result = ""
@ -270,7 +293,7 @@ def ensureNamecoinOptions ():
nmc.close ()
except Exception as exc:
print "Could not read the Namecoin config file probably because you don't have Namecoin installed. That's ok; we don't really need it. Detailed error message: %s" % str (exc)
logger.warning("Error processing namecoin.conf", exc_info=True)
# If still nothing found, set empty at least.
if (not hasUser):