From 7767d686011645bec593c42178a239282b490ae5 Mon Sep 17 00:00:00 2001
From: Marijn <marijnblom86@gmail.com>
Date: Mon, 13 Jan 2020 17:58:06 +0000
Subject: [PATCH] delugev2 support

---
 couchpotato/core/downloaders/deluge.py |   9 +-
 libs/deluge_client/client.py           | 275 +++++++++++++++++++
 libs/deluge_client/rencode.py          | 474 +++++++++++++++++++++++++++++++++
 libs/deluge_client/tests.py            |  65 +++++
 4 files changed, 819 insertions(+), 4 deletions(-)
 create mode 100644 libs/deluge_client/client.py
 create mode 100644 libs/deluge_client/rencode.py
 create mode 100644 libs/deluge_client/tests.py

diff --git a/couchpotato/core/downloaders/deluge.py b/couchpotato/core/downloaders/deluge.py
index 788891b..54500ea 100644
--- a/couchpotato/core/downloaders/deluge.py
+++ b/couchpotato/core/downloaders/deluge.py
@@ -10,8 +10,7 @@ from couchpotato.core._base.downloader.main import DownloaderBase, ReleaseDownlo
 from couchpotato.core.helpers.encoding import isInt, sp
 from couchpotato.core.helpers.variable import tryFloat, cleanHost
 from couchpotato.core.logger import CPLog
-from synchronousdeluge import DelugeClient
-
+from deluge_client.client import DelugeRPCClient
 
 log = CPLog(__name__)
 
@@ -221,8 +220,10 @@ class DelugeRPC(object):
         self.password = password
 
     def connect(self):
-        self.client = DelugeClient()
-        self.client.connect(self.host, int(self.port), self.username, self.password)
+        #self.client = DelugeClient()
+        #self.client.connect(self.host, int(self.port), self.username, self.password)
+        self.client = DelugeRPCClient(self.host, int(self.port), self.username, self.password)
+        self.client.connect()
 
     def test(self):
         try:
diff --git a/libs/deluge_client/client.py b/libs/deluge_client/client.py
new file mode 100644
index 0000000..827fcd7
--- /dev/null
+++ b/libs/deluge_client/client.py
@@ -0,0 +1,275 @@
+import logging
+import socket
+import ssl
+import struct
+import warnings
+import zlib
+
+from .rencode import dumps, loads
+
+RPC_RESPONSE = 1
+RPC_ERROR = 2
+RPC_EVENT = 3
+
+MESSAGE_HEADER_SIZE = 5
+READ_SIZE = 10
+
+logger = logging.getLogger(__name__)
+
+
+class DelugeClientException(Exception):
+    """Base exception for all deluge client exceptions"""
+
+
+class ConnectionLostException(DelugeClientException):
+    pass
+
+
+class CallTimeoutException(DelugeClientException):
+    pass
+
+
+class InvalidHeaderException(DelugeClientException):
+    pass
+
+
+class FailedToReconnectException(DelugeClientException):
+    pass
+
+
+class RemoteException(DelugeClientException):
+    pass
+
+
+class DelugeRPCClient(object):
+    timeout = 20
+
+    def __init__(self, host, port, username, password, decode_utf8=False, automatic_reconnect=True):
+        self.host = host
+        self.port = port
+        self.username = username
+        self.password = password
+        self.deluge_version = None
+        # This is only applicable if deluge_version is 2
+        self.deluge_protocol_version = None
+
+        self.decode_utf8 = decode_utf8
+        if not self.decode_utf8:
+            warnings.warn('Using `decode_utf8=False` is deprecated, please set it to True.'
+                          'The argument will be removed in a future release where it will be always True', DeprecationWarning)
+
+        self.automatic_reconnect = automatic_reconnect
+
+        self.request_id = 1
+        self.connected = False
+        self._create_socket()
+
+    def _create_socket(self, ssl_version=None):
+        if ssl_version is not None:
+            self._socket = ssl.wrap_socket(socket.socket(socket.AF_INET, socket.SOCK_STREAM), ssl_version=ssl_version)
+        else:
+            self._socket = ssl.wrap_socket(socket.socket(socket.AF_INET, socket.SOCK_STREAM))
+        self._socket.settimeout(self.timeout)
+
+    def connect(self):
+        """
+        Connects to the Deluge instance
+        """
+        self._connect()
+        logger.debug('Connected to Deluge, detecting daemon version')
+        self._detect_deluge_version()
+        logger.debug('Daemon version {} detected, logging in'.format(self.deluge_version))
+        if self.deluge_version == 2:
+            result = self.call('daemon.login', self.username, self.password, client_version='deluge-client')
+        else:
+            result = self.call('daemon.login', self.username, self.password)
+        logger.debug('Logged in with value %r' % result)
+        self.connected = True
+
+    def _connect(self):
+        logger.info('Connecting to %s:%s' % (self.host, self.port))
+        try:
+            self._socket.connect((self.host, self.port))
+        except ssl.SSLError as e:
+            # Note: have not verified that we actually get errno 258 for this error
+            if (hasattr(ssl, 'PROTOCOL_SSLv3') and
+                    (getattr(e, 'reason', None) == 'UNSUPPORTED_PROTOCOL' or e.errno == 258)):
+                logger.warning('Was unable to ssl handshake, trying to force SSLv3 (insecure)')
+                self._create_socket(ssl_version=ssl.PROTOCOL_SSLv3)
+                self._socket.connect((self.host, self.port))
+            else:
+                raise
+
+    def disconnect(self):
+        """
+        Disconnect from deluge
+        """
+        if self.connected:
+            self._socket.close()
+            self._socket = None
+            self.connected = False
+
+    def _detect_deluge_version(self):
+        if self.deluge_version is not None:
+            return
+
+        self._send_call(1, None, 'daemon.info')
+        self._send_call(2, None, 'daemon.info')
+        self._send_call(2, 1, 'daemon.info')
+        result = self._socket.recv(1)
+        if result[:1] == b'D':
+            # This is a protocol deluge 2.0 was using before release
+            self.deluge_version = 2
+            self.deluge_protocol_version = None
+            # If we need the specific version of deluge 2, this is it.
+            daemon_version = self._receive_response(2, None, partial_data=result)
+        elif ord(result[:1]) == 1:
+            self.deluge_version = 2
+            self.deluge_protocol_version = 1
+            # If we need the specific version of deluge 2, this is it.
+            daemon_version = self._receive_response(2, 1, partial_data=result)
+        else:
+            self.deluge_version = 1
+            # Deluge 1 doesn't recover well from the bad request. Re-connect the socket.
+            self._socket.close()
+            self._create_socket()
+            self._connect()
+
+    def _send_call(self, deluge_version, protocol_version, method, *args, **kwargs):
+        self.request_id += 1
+        if method == 'daemon.login':
+            debug_args = list(args)
+            if len(debug_args) >= 2:
+                debug_args[1] = '<password hidden>'
+            logger.debug('Calling reqid %s method %r with args:%r kwargs:%r' % (self.request_id, method, debug_args, kwargs))
+        else:
+            logger.debug('Calling reqid %s method %r with args:%r kwargs:%r' % (self.request_id, method, args, kwargs))
+
+        req = ((self.request_id, method, args, kwargs), )
+        req = zlib.compress(dumps(req))
+
+        if deluge_version == 2:
+            if protocol_version is None:
+                # This was a protocol for deluge 2 before they introduced protocol version numbers
+                self._socket.send(b'D' + struct.pack("!i", len(req)))
+            elif protocol_version == 1:
+                self._socket.send(struct.pack('!BI', protocol_version, len(req)))
+            else:
+                raise Exception('Deluge protocol version {} is not (yet) supported.'.format(protocol_version))
+        self._socket.send(req)
+
+    def _receive_response(self, deluge_version, protocol_version, partial_data=b''):
+        expected_bytes = None
+        data = partial_data
+        while True:
+            try:
+                d = self._socket.recv(READ_SIZE)
+            except ssl.SSLError:
+                raise CallTimeoutException()
+
+            data += d
+            if deluge_version == 2:
+                if expected_bytes is None:
+                    if len(data) < 5:
+                        continue
+
+                    header = data[:MESSAGE_HEADER_SIZE]
+                    data = data[MESSAGE_HEADER_SIZE:]
+
+                    if protocol_version is None:
+                        if header[0] != b'D'[0]:
+                            raise InvalidHeaderException('Expected D as first byte in reply')
+                    elif ord(header[:1]) != protocol_version:
+                        raise InvalidHeaderException(
+                            'Expected protocol version ({}) as first byte in reply'.format(protocol_version)
+                        )
+
+                    if protocol_version is None:
+                        expected_bytes = struct.unpack('!i', header[1:])[0]
+                    else:
+                        expected_bytes = struct.unpack('!I', header[1:])[0]
+
+                if len(data) >= expected_bytes:
+                    data = zlib.decompress(data)
+                    break
+            else:
+                try:
+                    data = zlib.decompress(data)
+                except zlib.error:
+                    if not d:
+                        raise ConnectionLostException()
+                    continue
+                break
+
+        data = list(loads(data, decode_utf8=self.decode_utf8))
+        msg_type = data.pop(0)
+        request_id = data.pop(0)
+
+        if msg_type == RPC_ERROR:
+            if self.deluge_version == 2:
+                exception_type, exception_msg, _, traceback = data
+                # On deluge 2, exception arguments are sent as tuple
+                if self.decode_utf8:
+                    exception_msg = ', '.join(exception_msg)
+                else:
+                    exception_msg = b', '.join(exception_msg)
+            else:
+                exception_type, exception_msg, traceback = data[0]
+            if self.decode_utf8:
+                exception = type(str(exception_type), (RemoteException, ), {})
+                exception_msg = '%s\n%s' % (exception_msg,
+                                            traceback)
+            else:
+                exception = type(str(exception_type.decode('utf-8', 'ignore')), (RemoteException, ), {})
+                exception_msg = '%s\n%s' % (exception_msg.decode('utf-8', 'ignore'),
+                                            traceback.decode('utf-8', 'ignore'))
+            raise exception(exception_msg)
+        elif msg_type == RPC_RESPONSE:
+            retval = data[0]
+            return retval
+
+    def reconnect(self):
+        """
+        Reconnect
+        """
+        self.disconnect()
+        self._create_socket()
+        self.connect()
+
+    def call(self, method, *args, **kwargs):
+        """
+        Calls an RPC function
+        """
+        tried_reconnect = False
+        for _ in range(2):
+            try:
+                self._send_call(self.deluge_version, self.deluge_protocol_version, method, *args, **kwargs)
+                return self._receive_response(self.deluge_version, self.deluge_protocol_version)
+            except (socket.error, ConnectionLostException, CallTimeoutException):
+                if self.automatic_reconnect:
+                    if tried_reconnect:
+                        raise FailedToReconnectException()
+                    else:
+                        try:
+                            self.reconnect()
+                        except (socket.error, ConnectionLostException, CallTimeoutException):
+                            raise FailedToReconnectException()
+
+                    tried_reconnect = True
+                else:
+                    raise
+
+    def __getattr__(self, item):
+        return RPCCaller(self.call, item)
+
+
+class RPCCaller(object):
+    def __init__(self, caller, method=''):
+        self.caller = caller
+        self.method = method
+
+    def __getattr__(self, item):
+        return RPCCaller(self.caller, self.method+'.'+item)
+
+    def __call__(self, *args, **kwargs):
+        return self.caller(self.method, *args, **kwargs)
diff --git a/libs/deluge_client/rencode.py b/libs/deluge_client/rencode.py
new file mode 100644
index 0000000..d9ac8fb
--- /dev/null
+++ b/libs/deluge_client/rencode.py
@@ -0,0 +1,474 @@
+# Original bencode module by Petru Paler, et al.
+#
+# Modifications by Connelly Barnes:
+#
+#  - Added support for floats (sent as 32-bit or 64-bit in network
+#    order), bools, None.
+#  - Allowed dict keys to be of any serializable type.
+#  - Lists/tuples are always decoded as tuples (thus, tuples can be
+#    used as dict keys).
+#  - Embedded extra information in the 'typecodes' to save some space.
+#  - Added a restriction on integer length, so that malicious hosts
+#    cannot pass us large integers which take a long time to decode.
+#
+# Licensed by Bram Cohen under the "MIT license":
+#
+#  "Copyright (C) 2001-2002 Bram Cohen
+#
+#  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."
+#
+# (The rencode module is licensed under the above license as well).
+#
+
+"""
+rencode -- Web safe object pickling/unpickling.
+
+Public domain, Connelly Barnes 2006-2007.
+
+The rencode module is a modified version of bencode from the
+BitTorrent project.  For complex, heterogeneous data structures with
+many small elements, r-encodings take up significantly less space than
+b-encodings:
+
+ >>> len(rencode.dumps({'a':0, 'b':[1,2], 'c':99}))
+ 13
+ >>> len(bencode.bencode({'a':0, 'b':[1,2], 'c':99}))
+ 26
+
+The rencode format is not standardized, and may change with different
+rencode module versions, so you should check that you are using the
+same rencode version throughout your project.
+"""
+
+import struct
+import sys
+from threading import Lock
+
+try:
+    from future_builtins import zip
+except ImportError:
+    # Ignore on Py3.
+    pass
+
+__version__ = ('Python', 1, 0, 4)
+__all__ = ['dumps', 'loads']
+
+py3 = sys.version_info[0] >= 3
+if py3:
+    long = int  # pylint: disable=redefined-builtin
+    unicode = str  # pylint: disable=redefined-builtin
+
+    def int2byte(c):
+        return bytes([c])
+else:
+    def int2byte(c):
+        return chr(c)
+
+# Default number of bits for serialized floats, either 32 or 64 (also a parameter for dumps()).
+DEFAULT_FLOAT_BITS = 32
+
+# Maximum length of integer when written as base 10 string.
+MAX_INT_LENGTH = 64
+
+# The bencode 'typecodes' such as i, d, etc have been extended and
+# relocated on the base-256 character set.
+CHR_LIST = int2byte(59)
+CHR_DICT = int2byte(60)
+CHR_INT = int2byte(61)
+CHR_INT1 = int2byte(62)
+CHR_INT2 = int2byte(63)
+CHR_INT4 = int2byte(64)
+CHR_INT8 = int2byte(65)
+CHR_FLOAT32 = int2byte(66)
+CHR_FLOAT64 = int2byte(44)
+CHR_TRUE = int2byte(67)
+CHR_FALSE = int2byte(68)
+CHR_NONE = int2byte(69)
+CHR_TERM = int2byte(127)
+
+# Positive integers with value embedded in typecode.
+INT_POS_FIXED_START = 0
+INT_POS_FIXED_COUNT = 44
+
+# Dictionaries with length embedded in typecode.
+DICT_FIXED_START = 102
+DICT_FIXED_COUNT = 25
+
+# Negative integers with value embedded in typecode.
+INT_NEG_FIXED_START = 70
+INT_NEG_FIXED_COUNT = 32
+
+# Strings with length embedded in typecode.
+STR_FIXED_START = 128
+STR_FIXED_COUNT = 64
+
+# Lists with length embedded in typecode.
+LIST_FIXED_START = STR_FIXED_START + STR_FIXED_COUNT
+LIST_FIXED_COUNT = 64
+
+# Whether strings should be decoded when loading
+_decode_utf8 = False
+
+
+def decode_int(x, f):
+    f += 1
+    newf = x.index(CHR_TERM, f)
+    if newf - f >= MAX_INT_LENGTH:
+        raise ValueError('overflow')
+    try:
+        n = int(x[f:newf])
+    except (OverflowError, ValueError):
+        n = long(x[f:newf])
+    if x[f:f + 1] == '-':
+        if x[f + 1:f + 2] == '0':
+            raise ValueError
+    elif x[f:f + 1] == '0' and newf != f + 1:
+        raise ValueError
+    return (n, newf + 1)
+
+
+def decode_intb(x, f):
+    f += 1
+    return (struct.unpack('!b', x[f:f + 1])[0], f + 1)
+
+
+def decode_inth(x, f):
+    f += 1
+    return (struct.unpack('!h', x[f:f + 2])[0], f + 2)
+
+
+def decode_intl(x, f):
+    f += 1
+
+    return (struct.unpack('!l', x[f:f + 4])[0], f + 4)
+
+
+def decode_intq(x, f):
+    f += 1
+    return (struct.unpack('!q', x[f:f + 8])[0], f + 8)
+
+
+def decode_float32(x, f):
+    f += 1
+    n = struct.unpack('!f', x[f:f + 4])[0]
+    return (n, f + 4)
+
+
+def decode_float64(x, f):
+    f += 1
+    n = struct.unpack('!d', x[f:f + 8])[0]
+    return (n, f + 8)
+
+
+def decode_string(x, f):
+    colon = x.index(b':', f)
+    try:
+        n = int(x[f:colon])
+    except (OverflowError, ValueError):
+        n = long(x[f:colon])
+    if x[f] == '0' and colon != f + 1:
+        raise ValueError
+    colon += 1
+    s = x[colon:colon + n]
+    if _decode_utf8:
+        s = s.decode('utf8')
+    return (s, colon + n)
+
+
+def decode_list(x, f):
+    r, f = [], f + 1
+    while x[f:f + 1] != CHR_TERM:
+        v, f = decode_func[x[f:f + 1]](x, f)
+        r.append(v)
+    return (tuple(r), f + 1)
+
+
+def decode_dict(x, f):
+    r, f = {}, f + 1
+    while x[f:f + 1] != CHR_TERM:
+        k, f = decode_func[x[f:f + 1]](x, f)
+        r[k], f = decode_func[x[f:f + 1]](x, f)
+    return (r, f + 1)
+
+
+def decode_true(x, f):
+    return (True, f + 1)
+
+
+def decode_false(x, f):
+    return (False, f + 1)
+
+
+def decode_none(x, f):
+    return (None, f + 1)
+
+
+decode_func = {}
+decode_func[b'0'] = decode_string
+decode_func[b'1'] = decode_string
+decode_func[b'2'] = decode_string
+decode_func[b'3'] = decode_string
+decode_func[b'4'] = decode_string
+decode_func[b'5'] = decode_string
+decode_func[b'6'] = decode_string
+decode_func[b'7'] = decode_string
+decode_func[b'8'] = decode_string
+decode_func[b'9'] = decode_string
+decode_func[CHR_LIST] = decode_list
+decode_func[CHR_DICT] = decode_dict
+decode_func[CHR_INT] = decode_int
+decode_func[CHR_INT1] = decode_intb
+decode_func[CHR_INT2] = decode_inth
+decode_func[CHR_INT4] = decode_intl
+decode_func[CHR_INT8] = decode_intq
+decode_func[CHR_FLOAT32] = decode_float32
+decode_func[CHR_FLOAT64] = decode_float64
+decode_func[CHR_TRUE] = decode_true
+decode_func[CHR_FALSE] = decode_false
+decode_func[CHR_NONE] = decode_none
+
+
+def make_fixed_length_string_decoders():
+    def make_decoder(slen):
+        def f(x, f):
+            s = x[f + 1:f + 1 + slen]
+            if _decode_utf8:
+                s = s.decode('utf8')
+            return (s, f + 1 + slen)
+        return f
+    for i in range(STR_FIXED_COUNT):
+        decode_func[int2byte(STR_FIXED_START + i)] = make_decoder(i)
+
+
+make_fixed_length_string_decoders()
+
+
+def make_fixed_length_list_decoders():
+    def make_decoder(slen):
+        def f(x, f):
+            r, f = [], f + 1
+            for _ in range(slen):
+                v, f = decode_func[x[f:f + 1]](x, f)
+                r.append(v)
+            return (tuple(r), f)
+        return f
+    for i in range(LIST_FIXED_COUNT):
+        decode_func[int2byte(LIST_FIXED_START + i)] = make_decoder(i)
+
+
+make_fixed_length_list_decoders()
+
+
+def make_fixed_length_int_decoders():
+    def make_decoder(j):
+        def f(x, f):
+            return (j, f + 1)
+        return f
+    for i in range(INT_POS_FIXED_COUNT):
+        decode_func[int2byte(INT_POS_FIXED_START + i)] = make_decoder(i)
+    for i in range(INT_NEG_FIXED_COUNT):
+        decode_func[int2byte(INT_NEG_FIXED_START + i)] = make_decoder(-1 - i)
+
+
+make_fixed_length_int_decoders()
+
+
+def make_fixed_length_dict_decoders():
+    def make_decoder(slen):
+        def f(x, f):
+            r, f = {}, f + 1
+            for _ in range(slen):
+                k, f = decode_func[x[f:f + 1]](x, f)
+                r[k], f = decode_func[x[f:f + 1]](x, f)
+            return (r, f)
+        return f
+    for i in range(DICT_FIXED_COUNT):
+        decode_func[int2byte(DICT_FIXED_START + i)] = make_decoder(i)
+
+
+make_fixed_length_dict_decoders()
+
+
+def loads(x, decode_utf8=False):
+    global _decode_utf8
+    _decode_utf8 = decode_utf8
+    try:
+        r, l = decode_func[x[0:1]](x, 0)
+    except (IndexError, KeyError):
+        raise ValueError
+    if l != len(x):
+        raise ValueError
+    return r
+
+
+def encode_int(x, r):
+    if 0 <= x < INT_POS_FIXED_COUNT:
+        r.append(int2byte(INT_POS_FIXED_START + x))
+    elif -INT_NEG_FIXED_COUNT <= x < 0:
+        r.append(int2byte(INT_NEG_FIXED_START - 1 - x))
+    elif -128 <= x < 128:
+        r.extend((CHR_INT1, struct.pack('!b', x)))
+    elif -32768 <= x < 32768:
+        r.extend((CHR_INT2, struct.pack('!h', x)))
+    elif -2147483648 <= x < 2147483648:
+        r.extend((CHR_INT4, struct.pack('!l', x)))
+    elif -9223372036854775808 <= x < 9223372036854775808:
+        r.extend((CHR_INT8, struct.pack('!q', x)))
+    else:
+        s = str(x)
+        if py3:
+            s = bytes(s, 'ascii')
+
+        if len(s) >= MAX_INT_LENGTH:
+            raise ValueError('overflow')
+        r.extend((CHR_INT, s, CHR_TERM))
+
+
+def encode_float32(x, r):
+    r.extend((CHR_FLOAT32, struct.pack('!f', x)))
+
+
+def encode_float64(x, r):
+    r.extend((CHR_FLOAT64, struct.pack('!d', x)))
+
+
+def encode_bool(x, r):
+    r.append({False: CHR_FALSE, True: CHR_TRUE}[bool(x)])
+
+
+def encode_none(x, r):
+    r.append(CHR_NONE)
+
+
+def encode_string(x, r):
+    if len(x) < STR_FIXED_COUNT:
+        r.extend((int2byte(STR_FIXED_START + len(x)), x))
+    else:
+        s = str(len(x))
+        if py3:
+            s = bytes(s, 'ascii')
+        r.extend((s, b':', x))
+
+
+def encode_unicode(x, r):
+    encode_string(x.encode('utf8'), r)
+
+
+def encode_list(x, r):
+    if len(x) < LIST_FIXED_COUNT:
+        r.append(int2byte(LIST_FIXED_START + len(x)))
+        for i in x:
+            encode_func[type(i)](i, r)
+    else:
+        r.append(CHR_LIST)
+        for i in x:
+            encode_func[type(i)](i, r)
+        r.append(CHR_TERM)
+
+
+def encode_dict(x, r):
+    if len(x) < DICT_FIXED_COUNT:
+        r.append(int2byte(DICT_FIXED_START + len(x)))
+        for k, v in x.items():
+            encode_func[type(k)](k, r)
+            encode_func[type(v)](v, r)
+    else:
+        r.append(CHR_DICT)
+        for k, v in x.items():
+            encode_func[type(k)](k, r)
+            encode_func[type(v)](v, r)
+        r.append(CHR_TERM)
+
+
+encode_func = {}
+encode_func[int] = encode_int
+encode_func[long] = encode_int
+encode_func[bytes] = encode_string
+encode_func[list] = encode_list
+encode_func[tuple] = encode_list
+encode_func[dict] = encode_dict
+encode_func[type(None)] = encode_none
+encode_func[unicode] = encode_unicode
+encode_func[bool] = encode_bool
+
+lock = Lock()
+
+
+def dumps(x, float_bits=DEFAULT_FLOAT_BITS):
+    """
+    Dump data structure to str.
+
+    Here float_bits is either 32 or 64.
+    """
+    with lock:
+        if float_bits == 32:
+            encode_func[float] = encode_float32
+        elif float_bits == 64:
+            encode_func[float] = encode_float64
+        else:
+            raise ValueError('Float bits (%d) is not 32 or 64' % float_bits)
+        r = []
+        encode_func[type(x)](x, r)
+    return b''.join(r)
+
+
+def test():
+    f1 = struct.unpack('!f', struct.pack('!f', 25.5))[0]
+    f2 = struct.unpack('!f', struct.pack('!f', 29.3))[0]
+    f3 = struct.unpack('!f', struct.pack('!f', -0.6))[0]
+    ld = (({b'a': 15, b'bb': f1, b'ccc': f2, b'': (f3, (), False, True, b'')}, (b'a', 10**20),
+           tuple(range(-100000, 100000)), b'b' * 31, b'b' * 62, b'b' * 64, 2**30, 2**33, 2**62,
+           2**64, 2**30, 2**33, 2**62, 2**64, False, False, True, -1, 2, 0),)
+    assert loads(dumps(ld)) == ld
+    d = dict(zip(range(-100000, 100000), range(-100000, 100000)))
+    d.update({b'a': 20, 20: 40, 40: 41, f1: f2, f2: f3, f3: False, False: True, True: False})
+    ld = (d, {}, {5: 6}, {7: 7, True: 8}, {9: 10, 22: 39, 49: 50, 44: b''})
+    assert loads(dumps(ld)) == ld
+    ld = (b'', b'a' * 10, b'a' * 100, b'a' * 1000, b'a' * 10000, b'a' * 100000, b'a' * 1000000, b'a' * 10000000)
+    assert loads(dumps(ld)) == ld
+    ld = tuple([dict(zip(range(n), range(n))) for n in range(100)]) + (b'b',)
+    assert loads(dumps(ld)) == ld
+    ld = tuple([dict(zip(range(n), range(-n, 0))) for n in range(100)]) + (b'b',)
+    assert loads(dumps(ld)) == ld
+    ld = tuple([tuple(range(n)) for n in range(100)]) + (b'b',)
+    assert loads(dumps(ld)) == ld
+    ld = tuple([b'a' * n for n in range(1000)]) + (b'b',)
+    assert loads(dumps(ld)) == ld
+    ld = tuple([b'a' * n for n in range(1000)]) + (None, True, None)
+    assert loads(dumps(ld)) == ld
+    assert loads(dumps(None)) is None
+    assert loads(dumps({None: None})) == {None: None}
+    assert 1e-10 < abs(loads(dumps(1.1)) - 1.1) < 1e-6
+    assert 1e-10 < abs(loads(dumps(1.1, 32)) - 1.1) < 1e-6
+    assert abs(loads(dumps(1.1, 64)) - 1.1) < 1e-12
+    assert loads(dumps('Hello World!!'), decode_utf8=True)
+
+
+try:
+    import psyco
+    psyco.bind(dumps)
+    psyco.bind(loads)
+except ImportError:
+    pass
+
+
+if __name__ == '__main__':
+    test()
diff --git a/libs/deluge_client/tests.py b/libs/deluge_client/tests.py
new file mode 100644
index 0000000..073b8ab
--- /dev/null
+++ b/libs/deluge_client/tests.py
@@ -0,0 +1,65 @@
+import os
+import sys
+
+import pytest
+
+from .client import DelugeRPCClient, RemoteException
+
+
+if sys.version_info > (3,):
+    long = int
+
+
+@pytest.fixture
+def client(request):
+    if sys.platform.startswith('win'):
+        auth_path = os.path.join(os.getenv('APPDATA'), 'deluge', 'auth')
+    else:
+        auth_path = os.path.expanduser("~/.config/deluge/auth")
+
+    with open(auth_path, 'rb') as f:
+        filedata = f.read().decode("utf-8").split('\n')[0].split(':')
+
+    username, password = filedata[:2]
+    ip = '127.0.0.1'
+    port = 58846
+    kwargs = {'decode_utf8': True}
+    if hasattr(request, 'param'):
+        kwargs.update(request.param)
+    client = DelugeRPCClient(ip, port, username, password, **kwargs)
+    client.connect()
+
+    yield client
+
+    try:
+        client.disconnect()
+    except:
+        pass
+
+
+def test_connect(client):
+    assert client.connected
+
+
+def test_call_method(client):
+    assert isinstance(client.call('core.get_free_space'), (int, long))
+
+
+def test_call_method_arguments(client):
+    assert isinstance(client.call('core.get_free_space', '/'), (int, long))
+
+
+@pytest.mark.parametrize('client',
+                         [{'decode_utf8': True}, {'decode_utf8': False}],
+                         ids=['decode_utf8_on', 'decode_utf8_off'],
+                         indirect=True)
+def test_call_method_exception(client):
+    with pytest.raises(RemoteException) as ex_info:
+        client.call('core.get_free_space', '1', '2')
+    assert ('takes at most 2 arguments' in str(ex_info.value) or
+            'takes from 1 to 2 positional arguments' in str(ex_info.value))  # deluge 2.0
+
+
+def test_attr_caller(client):
+    assert isinstance(client.core.get_free_space(), (int, long))
+    assert isinstance(client.core.get_free_space('/'), (int, long))