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mirror of synced 2024-11-12 01:00:46 +01:00
bemaniutils/bemani/client/protocol.py
Jennifer Taylor 509cb4f0d9 Convert most of the format() string calls to f-strings using libcst.
Exact commands run were:

  python3 -m libcst.tool codemod convert_format_to_fstring.ConvertFormatStringCommand . --no-format
  python3 setup.py build_ext --inplace
2020-01-07 21:29:07 +00:00

75 lines
2.1 KiB
Python

import requests
from bemani.client.common import random_hex_string
from bemani.protocol import EAmuseProtocol, Node
class ClientProtocol:
def __init__(self, address: str, port: int, encryption: bool, compression: bool, verbose: bool) -> None:
self.__address = address
self.__port = port
self.__encryption = encryption
self.__compression = compression
self.__verbose = verbose
def exchange(self, uri: str, tree: Node, text_encoding: str="shift-jis", packet_encoding: str="binary") -> Node:
headers = {}
if self.__verbose:
print('Outgoing request:')
print(tree)
# Handle encoding
if packet_encoding == "xml":
_packet_encoding = EAmuseProtocol.XML
elif packet_encoding == "binary":
_packet_encoding = EAmuseProtocol.BINARY
else:
raise Exception(f"Unknown packet encoding {packet_encoding}")
# Handle encryption
if self.__encryption:
encryption = f'1-{random_hex_string(8)}-{random_hex_string(4)}'
headers['X-Eamuse-Info'] = encryption
else:
encryption = None
# Handle compression
if self.__compression:
compression = 'lz77'
else:
compression = None
headers['X-Compress'] = compression
# Convert it
proto = EAmuseProtocol()
req = proto.encode(
compression,
encryption,
tree,
text_encoding=text_encoding,
packet_encoding=_packet_encoding,
)
# Send the request, get the response
r = requests.post(
f'http://{self.__address}:{self.__port}/{uri}',
headers=headers,
data=req,
)
# Get the compression and encryption
encryption = headers.get('X-Eamuse-Info')
compression = headers.get('X-Compress')
# Decode it
packet = proto.decode(
compression,
encryption,
r.content,
)
if self.__verbose:
print('Incoming response:')
print(packet)
return packet