Implement JSON RPC myself.

Write my own implementation of JSON RPC and HTTP queries, because
the jsonrpc module failed to let me configure what to do with
failed HTTP authentications.
This commit is contained in:
Daniel Kraft 2013-07-05 19:08:39 +02:00
parent 9aa82db81f
commit 09c0aa993f
2 changed files with 119 additions and 25 deletions

View File

@ -14,7 +14,7 @@ except ImportError:
from addresses import * from addresses import *
import shared import shared
from bitmessageui import * from bitmessageui import *
from class_namecoin import * from class_namecoin import namecoinConnection
from newaddressdialog import * from newaddressdialog import *
from newsubscriptiondialog import * from newsubscriptiondialog import *
from regenerateaddresses import * from regenerateaddresses import *

View File

@ -1,46 +1,140 @@
# Copyright (C) 2013 by Daniel Kraft <d@domob.eu>
# This file is part of the Bitmessage project.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import base64
import json import json
from jsonrpc import ServiceProxy, JSONRPCException import socket
# Error thrown when the RPC call returns an error.
class RPCError (Exception):
error = None
def __init__ (self, data):
self.error = data
# This class handles the Namecoin identity integration. # This class handles the Namecoin identity integration.
class namecoinConnection (object):
user = None
password = None
host = None
port = None
bufsize = 4096
queryid = 1
class namecoinConnection(object): def __init__ (self):
self.user = "daniel"
def __init__(self): self.password = "password"
user = "daniel" self.host = "localhost"
password = "password" self.port = "8336"
host = "localhost"
port = "8336"
self.s = ServiceProxy("http://" + user + ":" + password
+ "@" + host + ":" + port)
# Query for the bitmessage address corresponding to the given identity # Query for the bitmessage address corresponding to the given identity
# string. If it doesn't contain a slash, id/ is prepended. We return # 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 # the result as (Error, Address) pair, where the Error is an error
# message to display or None in case of success. # message to display or None in case of success.
def query(self,string): def query (self, string):
slashPos = string.find("/") slashPos = string.find ("/")
if slashPos < 0: if slashPos < 0:
string = "id/" + string string = "id/" + string
try: try:
res = self.s.name_show(string) res = self.callRPC ("name_show", [string])
except JSONRPCException as err: except RPCError as exc:
if err.error["code"] == -4: if exc.error["code"] == -4:
return ("The name '" + string + "' was not found.", None) return ("The name '%s' was not found." % string, None)
else: else:
return ("The namecoin query failed (" return ("The namecoin query failed (%s)" % exc.error["message"],
+ err.error["message"] + ")", None) None)
except: except Exception as exc:
print "Namecoin query exception: %s" % str (exc)
return ("The namecoin query failed.", None) return ("The namecoin query failed.", None)
try: try:
print res["value"] val = json.loads (res["value"])
val = json.loads(res["value"])
except: except:
return ("The name '" + string + "' has no valid JSON data.", None) return ("The name '%s' has no valid JSON data." % string, None)
if "bitmessage" in val: if "bitmessage" in val:
return (None, val["bitmessage"]) return (None, val["bitmessage"])
return ("The name '" + string return ("The name '%s' has no associated Bitmessage address." % string,
+ "' has no associated Bitmessage address.", None) None)
# Helper routine that actually performs an JSON RPC call.
def callRPC (self, method, params):
data = {"method": method, "params": params, "id": self.queryid}
resp = self.queryHTTP (json.dumps (data))
val = json.loads (resp)
if val["id"] != self.queryid:
raise Exception ("ID mismatch in JSON RPC answer.")
self.queryid = self.queryid + 1
if val["error"] is not None:
raise RPCError (val["error"])
return val["result"]
# Query the server via HTTP.
def queryHTTP (self, data):
header = "POST / HTTP/1.1\n"
header += "User-Agent: bitmessage\n"
header += "Host: %s\n" % self.host
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
return result
# Helper routine sending data to the RPC server and returning the result.
def queryServer (self, data):
try:
s = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt (socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.connect ((self.host, int (self.port)))
s.sendall (data)
result = ""
while True:
tmp = s.recv (self.bufsize)
if not tmp:
break
result += tmp
s.close ()
return result
except socket.error as exc:
raise Exception ("Socket error in RPC connection: %s" % str (exc))