Move experiments, graph and cmdclient into contrib

1 files changed, 747 insertions, 0 deletions

diff --git a/contrib/cmdclient/console.py b/contrib/cmdclient/console.py
new file mode 100755
index 0000000000..d9c6ec6a70
--- /dev/null
+++ b/contrib/cmdclient/console.py
@@ -0,0 +1,747 @@
+#!/usr/bin/env python
+
+# Copyright 2014 OpenMarket Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+""" Starts a synapse client console. """
+
+from twisted.internet import reactor, defer, threads
+from http import TwistedHttpClient
+
+import argparse
+import cmd
+import getpass
+import json
+import shlex
+import sys
+import time
+import urllib
+import urlparse
+
+import nacl.signing
+import nacl.encoding
+
+from syutil.crypto.jsonsign import verify_signed_json, SignatureVerifyException
+
+CONFIG_JSON = "cmdclient_config.json"
+
+TRUSTED_ID_SERVERS = [
+    'localhost:8001'
+]
+
+class SynapseCmd(cmd.Cmd):
+
+    """Basic synapse command-line processor.
+
+    This processes commands from the user and calls the relevant HTTP methods.
+    """
+
+    def __init__(self, http_client, server_url, identity_server_url, username, token):
+        cmd.Cmd.__init__(self)
+        self.http_client = http_client
+        self.http_client.verbose = True
+        self.config = {
+            "url": server_url,
+            "identityServerUrl": identity_server_url,
+            "user": username,
+            "token": token,
+            "verbose": "on",
+            "complete_usernames": "on",
+            "send_delivery_receipts": "on"
+        }
+        self.path_prefix = "/_matrix/client/api/v1"
+        self.event_stream_token = "END"
+        self.prompt = ">>> "
+
+    def do_EOF(self, line):  # allows CTRL+D quitting
+        return True
+
+    def emptyline(self):
+        pass  # else it repeats the previous command
+
+    def _usr(self):
+        return self.config["user"]
+
+    def _tok(self):
+        return self.config["token"]
+
+    def _url(self):
+        return self.config["url"] + self.path_prefix
+
+    def _identityServerUrl(self):
+        return self.config["identityServerUrl"]
+
+    def _is_on(self, config_name):
+        if config_name in self.config:
+            return self.config[config_name] == "on"
+        return False
+
+    def _domain(self):
+        if "user" not in self.config or not self.config["user"]:
+            return None
+        return self.config["user"].split(":")[1]
+
+    def do_config(self, line):
+        """ Show the config for this client: "config"
+        Edit a key value mapping: "config key value" e.g. "config token 1234"
+        Config variables:
+            user: The username to auth with.
+            token: The access token to auth with.
+            url: The url of the server.
+            verbose: [on|off] The verbosity of requests/responses.
+            complete_usernames: [on|off] Auto complete partial usernames by
+            assuming they are on the same homeserver as you.
+            E.g. name >> @name:yourhost
+            send_delivery_receipts: [on|off] Automatically send receipts to
+            messages when performing a 'stream' command.
+        Additional key/values can be added and can be substituted into requests
+        by using $. E.g. 'config roomid room1' then 'raw get /rooms/$roomid'.
+        """
+        if len(line) == 0:
+            print json.dumps(self.config, indent=4)
+            return
+
+        try:
+            args = self._parse(line, ["key", "val"], force_keys=True)
+
+            # make sure restricted config values are checked
+            config_rules = [  # key, valid_values
+                ("verbose", ["on", "off"]),
+                ("complete_usernames", ["on", "off"]),
+                ("send_delivery_receipts", ["on", "off"])
+            ]
+            for key, valid_vals in config_rules:
+                if key == args["key"] and args["val"] not in valid_vals:
+                    print "%s value must be one of %s" % (args["key"],
+                                                          valid_vals)
+                    return
+
+            # toggle the http client verbosity
+            if args["key"] == "verbose":
+                self.http_client.verbose = "on" == args["val"]
+
+            # assign the new config
+            self.config[args["key"]] = args["val"]
+            print json.dumps(self.config, indent=4)
+
+            save_config(self.config)
+        except Exception as e:
+            print e
+
+    def do_register(self, line):
+        """Registers for a new account: "register <userid> <noupdate>"
+        <userid> : The desired user ID
+        <noupdate> : Do not automatically clobber config values.
+        """
+        args = self._parse(line, ["userid", "noupdate"])
+
+        password = None
+        pwd = None
+        pwd2 = "_"
+        while pwd != pwd2:
+            pwd = getpass.getpass("Type a password for this user: ")
+            pwd2 = getpass.getpass("Retype the password: ")
+            if pwd != pwd2 or len(pwd) == 0:
+                print "Password mismatch."
+                pwd = None
+            else:
+                password = pwd
+
+        body = {
+            "type": "m.login.password"
+        }
+        if "userid" in args:
+            body["user"] = args["userid"]
+        if password:
+            body["password"] = password
+
+        reactor.callFromThread(self._do_register, body,
+                               "noupdate" not in args)
+
+    @defer.inlineCallbacks
+    def _do_register(self, data, update_config):
+        # check the registration flows
+        url = self._url() + "/register"
+        json_res = yield self.http_client.do_request("GET", url)
+        print json.dumps(json_res, indent=4)
+
+        passwordFlow = None
+        for flow in json_res["flows"]:
+            if flow["type"] == "m.login.recaptcha" or ("stages" in flow and "m.login.recaptcha" in flow["stages"]):
+                print "Unable to register: Home server requires captcha."
+                return
+            if flow["type"] == "m.login.password" and "stages" not in flow:
+                passwordFlow = flow
+                break
+
+        if not passwordFlow:
+            return
+
+        json_res = yield self.http_client.do_request("POST", url, data=data)
+        print json.dumps(json_res, indent=4)
+        if update_config and "user_id" in json_res:
+            self.config["user"] = json_res["user_id"]
+            self.config["token"] = json_res["access_token"]
+            save_config(self.config)
+
+    def do_login(self, line):
+        """Login as a specific user: "login @bob:localhost"
+        You MAY be prompted for a password, or instructed to visit a URL.
+        """
+        try:
+            args = self._parse(line, ["user_id"], force_keys=True)
+            can_login = threads.blockingCallFromThread(
+                reactor,
+                self._check_can_login)
+            if can_login:
+                p = getpass.getpass("Enter your password: ")
+                user = args["user_id"]
+                if self._is_on("complete_usernames") and not user.startswith("@"):
+                    domain = self._domain()
+                    if domain:
+                        user = "@" + user + ":" + domain
+                
+                reactor.callFromThread(self._do_login, user, p)
+                #print " got %s " % p
+        except Exception as e:
+            print e
+
+    @defer.inlineCallbacks
+    def _do_login(self, user, password):
+        path = "/login"
+        data = {
+            "user": user,
+            "password": password,
+            "type": "m.login.password"
+        }
+        url = self._url() + path
+        json_res = yield self.http_client.do_request("POST", url, data=data)
+        print json_res
+
+        if "access_token" in json_res:
+            self.config["user"] = user
+            self.config["token"] = json_res["access_token"]
+            save_config(self.config)
+            print "Login successful."
+
+    @defer.inlineCallbacks
+    def _check_can_login(self):
+        path = "/login"
+        # ALWAYS check that the home server can handle the login request before
+        # submitting!
+        url = self._url() + path
+        json_res = yield self.http_client.do_request("GET", url)
+        print json_res
+
+        if "flows" not in json_res:
+            print "Failed to find any login flows."
+            defer.returnValue(False)
+
+        flow = json_res["flows"][0] # assume first is the one we want.
+        if ("type" not in flow or "m.login.password" != flow["type"] or
+                "stages" in flow):
+            fallback_url = self._url() + "/login/fallback"
+            print ("Unable to login via the command line client. Please visit "
+                "%s to login." % fallback_url)
+            defer.returnValue(False)
+        defer.returnValue(True)
+
+    def do_emailrequest(self, line):
+        """Requests the association of a third party identifier
+        <address> The email address)
+        <clientSecret> A string of characters generated when requesting an email that you'll supply in subsequent calls to identify yourself
+        <sendAttempt> The number of times the user has requested an email. Leave this the same between requests to retry the request at the transport level. Increment it to request that the email be sent again.
+        """
+        args = self._parse(line, ['address', 'clientSecret', 'sendAttempt'])
+
+        postArgs = {'email': args['address'], 'clientSecret': args['clientSecret'], 'sendAttempt': args['sendAttempt']}
+
+        reactor.callFromThread(self._do_emailrequest, postArgs)
+
+    @defer.inlineCallbacks
+    def _do_emailrequest(self, args):
+        url = self._identityServerUrl()+"/_matrix/identity/api/v1/validate/email/requestToken"
+
+        json_res = yield self.http_client.do_request("POST", url, data=urllib.urlencode(args), jsonreq=False,
+                                                     headers={'Content-Type': ['application/x-www-form-urlencoded']})
+        print json_res
+        if 'sid' in json_res:
+            print "Token sent. Your session ID is %s" % (json_res['sid'])
+
+    def do_emailvalidate(self, line):
+        """Validate and associate a third party ID
+        <sid> The session ID (sid) given to you in the response to requestToken
+        <token> The token sent to your third party identifier address
+        <clientSecret> The same clientSecret you supplied in requestToken
+        """
+        args = self._parse(line, ['sid', 'token', 'clientSecret'])
+
+        postArgs = { 'sid' : args['sid'], 'token' : args['token'], 'clientSecret': args['clientSecret'] }
+
+        reactor.callFromThread(self._do_emailvalidate, postArgs)
+
+    @defer.inlineCallbacks
+    def _do_emailvalidate(self, args):
+        url = self._identityServerUrl()+"/_matrix/identity/api/v1/validate/email/submitToken"
+
+        json_res = yield self.http_client.do_request("POST", url, data=urllib.urlencode(args), jsonreq=False,
+                                                     headers={'Content-Type': ['application/x-www-form-urlencoded']})
+        print json_res
+
+    def do_3pidbind(self, line):
+        """Validate and associate a third party ID
+        <sid> The session ID (sid) given to you in the response to requestToken
+        <clientSecret> The same clientSecret you supplied in requestToken
+        """
+        args = self._parse(line, ['sid', 'clientSecret'])
+
+        postArgs = { 'sid' : args['sid'], 'clientSecret': args['clientSecret'] }
+        postArgs['mxid'] = self.config["user"]
+
+        reactor.callFromThread(self._do_3pidbind, postArgs)
+
+    @defer.inlineCallbacks
+    def _do_3pidbind(self, args):
+        url = self._identityServerUrl()+"/_matrix/identity/api/v1/3pid/bind"
+
+        json_res = yield self.http_client.do_request("POST", url, data=urllib.urlencode(args), jsonreq=False,
+                                                     headers={'Content-Type': ['application/x-www-form-urlencoded']})
+        print json_res
+
+    def do_join(self, line):
+        """Joins a room: "join <roomid>" """
+        try:
+            args = self._parse(line, ["roomid"], force_keys=True)
+            self._do_membership_change(args["roomid"], "join", self._usr())
+        except Exception as e:
+            print e
+
+    def do_joinalias(self, line):
+        try:
+            args = self._parse(line, ["roomname"], force_keys=True)
+            path = "/join/%s" % urllib.quote(args["roomname"])
+            reactor.callFromThread(self._run_and_pprint, "POST", path, {})
+        except Exception as e:
+            print e
+
+    def do_topic(self, line):
+        """"topic [set|get] <roomid> [<newtopic>]"
+        Set the topic for a room: topic set <roomid> <newtopic>
+        Get the topic for a room: topic get <roomid>
+        """
+        try:
+            args = self._parse(line, ["action", "roomid", "topic"])
+            if "action" not in args or "roomid" not in args:
+                print "Must specify set|get and a room ID."
+                return
+            if args["action"].lower() not in ["set", "get"]:
+                print "Must specify set|get, not %s" % args["action"]
+                return
+
+            path = "/rooms/%s/topic" % urllib.quote(args["roomid"])
+
+            if args["action"].lower() == "set":
+                if "topic" not in args:
+                    print "Must specify a new topic."
+                    return
+                body = {
+                    "topic": args["topic"]
+                }
+                reactor.callFromThread(self._run_and_pprint, "PUT", path, body)
+            elif args["action"].lower() == "get":
+                reactor.callFromThread(self._run_and_pprint, "GET", path)
+        except Exception as e:
+            print e
+
+    def do_invite(self, line):
+        """Invite a user to a room: "invite <userid> <roomid>" """
+        try:
+            args = self._parse(line, ["userid", "roomid"], force_keys=True)
+
+            user_id = args["userid"]
+
+            reactor.callFromThread(self._do_invite, args["roomid"], user_id)
+        except Exception as e:
+            print e
+
+    @defer.inlineCallbacks
+    def _do_invite(self, roomid, userstring):
+        if (not userstring.startswith('@') and
+                    self._is_on("complete_usernames")):
+            url = self._identityServerUrl()+"/_matrix/identity/api/v1/lookup"
+
+            json_res = yield self.http_client.do_request("GET", url, qparams={'medium':'email','address':userstring})
+
+            mxid = None
+
+            if 'mxid' in json_res and 'signatures' in json_res:
+                url = self._identityServerUrl()+"/_matrix/identity/api/v1/pubkey/ed25519"
+
+                pubKey = None
+                pubKeyObj = yield self.http_client.do_request("GET", url)
+                if 'public_key' in pubKeyObj:
+                    pubKey = nacl.signing.VerifyKey(pubKeyObj['public_key'], encoder=nacl.encoding.HexEncoder)
+                else:
+                    print "No public key found in pubkey response!"
+
+                sigValid = False
+
+                if pubKey:
+                    for signame in json_res['signatures']:
+                        if signame not in TRUSTED_ID_SERVERS:
+                            print "Ignoring signature from untrusted server %s" % (signame)
+                        else:
+                            try:
+                                verify_signed_json(json_res, signame, pubKey)
+                                sigValid = True
+                                print "Mapping %s -> %s correctly signed by %s" % (userstring, json_res['mxid'], signame)
+                                break
+                            except SignatureVerifyException as e:
+                                print "Invalid signature from %s" % (signame)
+                                print e
+
+                if sigValid:
+                    print "Resolved 3pid %s to %s" % (userstring, json_res['mxid'])
+                    mxid = json_res['mxid']
+                else:
+                    print "Got association for %s but couldn't verify signature" % (userstring)
+
+            if not mxid:
+                mxid = "@" + userstring + ":" + self._domain()
+
+            self._do_membership_change(roomid, "invite", mxid)
+
+    def do_leave(self, line):
+        """Leaves a room: "leave <roomid>" """
+        try:
+            args = self._parse(line, ["roomid"], force_keys=True)
+            self._do_membership_change(args["roomid"], "leave", self._usr())
+        except Exception as e:
+            print e
+
+    def do_send(self, line):
+        """Sends a message. "send <roomid> <body>" """
+        args = self._parse(line, ["roomid", "body"])
+        txn_id = "txn%s" % int(time.time())
+        path = "/rooms/%s/send/m.room.message/%s" % (urllib.quote(args["roomid"]),
+                                             txn_id)
+        body_json = {
+            "msgtype": "m.text",
+            "body": args["body"]
+        }
+        reactor.callFromThread(self._run_and_pprint, "PUT", path, body_json)
+
+    def do_list(self, line):
+        """List data about a room.
+        "list members <roomid> [query]" - List all the members in this room.
+        "list messages <roomid> [query]" - List all the messages in this room.
+
+        Where [query] will be directly applied as query parameters, allowing
+        you to use the pagination API. E.g. the last 3 messages in this room:
+        "list messages <roomid> from=END&to=START&limit=3"
+        """
+        args = self._parse(line, ["type", "roomid", "qp"])
+        if not "type" in args or not "roomid" in args:
+            print "Must specify type and room ID."
+            return
+        if args["type"] not in ["members", "messages"]:
+            print "Unrecognised type: %s" % args["type"]
+            return
+        room_id = args["roomid"]
+        path = "/rooms/%s/%s" % (urllib.quote(room_id), args["type"])
+
+        qp = {"access_token": self._tok()}
+        if "qp" in args:
+            for key_value_str in args["qp"].split("&"):
+                try:
+                    key_value = key_value_str.split("=")
+                    qp[key_value[0]] = key_value[1]
+                except:
+                    print "Bad query param: %s" % key_value
+                    return
+
+        reactor.callFromThread(self._run_and_pprint, "GET", path,
+                               query_params=qp)
+
+    def do_create(self, line):
+        """Creates a room.
+        "create [public|private] <roomname>" - Create a room <roomname> with the
+                                             specified visibility.
+        "create <roomname>" - Create a room <roomname> with default visibility.
+        "create [public|private]" - Create a room with specified visibility.
+        "create" - Create a room with default visibility.
+        """
+        args = self._parse(line, ["vis", "roomname"])
+        # fixup args depending on which were set
+        body = {}
+        if "vis" in args and args["vis"] in ["public", "private"]:
+            body["visibility"] = args["vis"]
+
+        if "roomname" in args:
+            room_name = args["roomname"]
+            body["room_alias_name"] = room_name
+        elif "vis" in args and args["vis"] not in ["public", "private"]:
+            room_name = args["vis"]
+            body["room_alias_name"] = room_name
+
+        reactor.callFromThread(self._run_and_pprint, "POST", "/createRoom", body)
+
+    def do_raw(self, line):
+        """Directly send a JSON object: "raw <method> <path> <data> <notoken>"
+        <method>: Required. One of "PUT", "GET", "POST", "xPUT", "xGET",
+        "xPOST". Methods with 'x' prefixed will not automatically append the
+        access token.
+        <path>: Required. E.g. "/events"
+        <data>: Optional. E.g. "{ "msgtype":"custom.text", "body":"abc123"}"
+        """
+        args = self._parse(line, ["method", "path", "data"])
+        # sanity check
+        if "method" not in args or "path" not in args:
+            print "Must specify path and method."
+            return
+
+        args["method"] = args["method"].upper()
+        valid_methods = ["PUT", "GET", "POST", "DELETE",
+                         "XPUT", "XGET", "XPOST", "XDELETE"]
+        if args["method"] not in valid_methods:
+            print "Unsupported method: %s" % args["method"]
+            return
+
+        if "data" not in args:
+            args["data"] = None
+        else:
+            try:
+                args["data"] = json.loads(args["data"])
+            except Exception as e:
+                print "Data is not valid JSON. %s" % e
+                return
+
+        qp = {"access_token": self._tok()}
+        if args["method"].startswith("X"):
+            qp = {}  # remove access token
+            args["method"] = args["method"][1:]  # snip the X
+        else:
+            # append any query params the user has set
+            try:
+                parsed_url = urlparse.urlparse(args["path"])
+                qp.update(urlparse.parse_qs(parsed_url.query))
+                args["path"] = parsed_url.path
+            except:
+                pass
+
+        reactor.callFromThread(self._run_and_pprint, args["method"],
+                                                     args["path"],
+                                                     args["data"],
+                                                     query_params=qp)
+
+    def do_stream(self, line):
+        """Stream data from the server: "stream <longpoll timeout ms>" """
+        args = self._parse(line, ["timeout"])
+        timeout = 5000
+        if "timeout" in args:
+            try:
+                timeout = int(args["timeout"])
+            except ValueError:
+                print "Timeout must be in milliseconds."
+                return
+        reactor.callFromThread(self._do_event_stream, timeout)
+
+    @defer.inlineCallbacks
+    def _do_event_stream(self, timeout):
+        res = yield self.http_client.get_json(
+                self._url() + "/events",
+                {
+                    "access_token": self._tok(),
+                    "timeout": str(timeout),
+                    "from": self.event_stream_token
+                })
+        print json.dumps(res, indent=4)
+
+        if "chunk" in res:
+            for event in res["chunk"]:
+                if (event["type"] == "m.room.message" and
+                        self._is_on("send_delivery_receipts") and
+                        event["user_id"] != self._usr()):  # not sent by us
+                    self._send_receipt(event, "d")
+
+        # update the position in the stram
+        if "end" in res:
+            self.event_stream_token = res["end"]
+
+    def _send_receipt(self, event, feedback_type):
+        path = ("/rooms/%s/messages/%s/%s/feedback/%s/%s" %
+               (urllib.quote(event["room_id"]), event["user_id"], event["msg_id"],
+                self._usr(), feedback_type))
+        data = {}
+        reactor.callFromThread(self._run_and_pprint, "PUT", path, data=data,
+                               alt_text="Sent receipt for %s" % event["msg_id"])
+
+    def _do_membership_change(self, roomid, membership, userid):
+        path = "/rooms/%s/state/m.room.member/%s" % (urllib.quote(roomid), urllib.quote(userid))
+        data = {
+            "membership": membership
+        }
+        reactor.callFromThread(self._run_and_pprint, "PUT", path, data=data)
+
+    def do_displayname(self, line):
+        """Get or set my displayname: "displayname [new_name]" """
+        args = self._parse(line, ["name"])
+        path = "/profile/%s/displayname" % (self.config["user"])
+
+        if "name" in args:
+            data = {"displayname": args["name"]}
+            reactor.callFromThread(self._run_and_pprint, "PUT", path, data=data)
+        else:
+            reactor.callFromThread(self._run_and_pprint, "GET", path)
+
+    def _do_presence_state(self, state, line):
+        args = self._parse(line, ["msgstring"])
+        path = "/presence/%s/status" % (self.config["user"])
+        data = {"state": state}
+        if "msgstring" in args:
+            data["status_msg"] = args["msgstring"]
+
+        reactor.callFromThread(self._run_and_pprint, "PUT", path, data=data)
+
+    def do_offline(self, line):
+        """Set my presence state to OFFLINE"""
+        self._do_presence_state(0, line)
+
+    def do_away(self, line):
+        """Set my presence state to AWAY"""
+        self._do_presence_state(1, line)
+
+    def do_online(self, line):
+        """Set my presence state to ONLINE"""
+        self._do_presence_state(2, line)
+
+    def _parse(self, line, keys, force_keys=False):
+        """ Parses the given line.
+
+        Args:
+            line : The line to parse
+            keys : A list of keys to map onto the args
+            force_keys : True to enforce that the line has a value for every key
+        Returns:
+            A dict of key:arg
+        """
+        line_args = shlex.split(line)
+        if force_keys and len(line_args) != len(keys):
+            raise IndexError("Must specify all args: %s" % keys)
+
+        # do $ substitutions
+        for i, arg in enumerate(line_args):
+            for config_key in self.config:
+                if ("$" + config_key) in arg:
+                    arg = arg.replace("$" + config_key,
+                                      self.config[config_key])
+            line_args[i] = arg
+
+        return dict(zip(keys, line_args))
+
+    @defer.inlineCallbacks
+    def _run_and_pprint(self, method, path, data=None,
+                        query_params={"access_token": None}, alt_text=None):
+        """ Runs an HTTP request and pretty prints the output.
+
+        Args:
+            method: HTTP method
+            path: Relative path
+            data: Raw JSON data if any
+            query_params: dict of query parameters to add to the url
+        """
+        url = self._url() + path
+        if "access_token" in query_params:
+            query_params["access_token"] = self._tok()
+
+        json_res = yield self.http_client.do_request(method, url,
+                                                    data=data,
+                                                    qparams=query_params)
+        if alt_text:
+            print alt_text
+        else:
+            print json.dumps(json_res, indent=4)
+
+
+def save_config(config):
+    with open(CONFIG_JSON, 'w') as out:
+        json.dump(config, out)
+
+
+def main(server_url, identity_server_url, username, token, config_path):
+    print "Synapse command line client"
+    print "==========================="
+    print "Server: %s" % server_url
+    print "Type 'help' to get started."
+    print "Close this console with CTRL+C then CTRL+D."
+    if not username or not token:
+        print "-  'register <username>' - Register an account"
+        print "-  'stream' - Connect to the event stream"
+        print "-  'create <roomid>' - Create a room"
+        print "-  'send <roomid> <message>' - Send a message"
+    http_client = TwistedHttpClient()
+
+    # the command line client
+    syn_cmd = SynapseCmd(http_client, server_url, identity_server_url, username, token)
+
+    # load synapse.json config from a previous session
+    global CONFIG_JSON
+    CONFIG_JSON = config_path  # bit cheeky, but just overwrite the global
+    try:
+        with open(config_path, 'r') as config:
+            syn_cmd.config = json.load(config)
+            try:
+                http_client.verbose = "on" == syn_cmd.config["verbose"]
+            except:
+                pass
+            print "Loaded config from %s" % config_path
+    except:
+        pass
+
+    # Twisted-specific: Runs the command processor in Twisted's event loop
+    # to maintain a single thread for both commands and event processing.
+    # If using another HTTP client, just call syn_cmd.cmdloop()
+    reactor.callInThread(syn_cmd.cmdloop)
+    reactor.run()
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser("Starts a synapse client.")
+    parser.add_argument(
+        "-s", "--server", dest="server", default="http://localhost:8008",
+        help="The URL of the home server to talk to.")
+    parser.add_argument(
+        "-i", "--identity-server", dest="identityserver", default="http://localhost:8090",
+        help="The URL of the identity server to talk to.")
+    parser.add_argument(
+        "-u", "--username", dest="username",
+        help="Your username on the server.")
+    parser.add_argument(
+        "-t", "--token", dest="token",
+        help="Your access token.")
+    parser.add_argument(
+        "-c", "--config", dest="config", default=CONFIG_JSON,
+        help="The location of the config.json file to read from.")
+    args = parser.parse_args()
+
+    if not args.server:
+        print "You must supply a server URL to communicate with."
+        parser.print_help()
+        sys.exit(1)
+
+    server = args.server
+    if not server.startswith("http://"):
+        server = "http://" + args.server
+
+    main(server, args.identityserver, args.username, args.token, args.config)