236 lines
7.4 KiB
Python
236 lines
7.4 KiB
Python
import struct
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import string
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import lzma
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from .frame import ReplayFrame
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from .helpers import osuModes
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from .helpers import osuMods
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from .helpers import osuRanks
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from .helpers.typeSerializer import *
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from io import BufferedReader
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from os.path import isfile
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from hashlib import md5 as _md5
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def md5_str(data):
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if type(data) is str:
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data = data.encode("ascii")
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return _md5(data).hexdigest().encode()
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def md5_file(file):
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if type(file) is not BufferedReader:
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raise Exception("File is not a BufferedReader")
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if file.mode != "rb":
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raise Exception("File is not in ReadBytes mode")
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hash = _md5()
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for chunk in iter(lambda: file.read(4096), b""):
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hash.update(chunk)
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return hash.hexdigest()
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def lzma_compress(data):
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return bytes([len(data)]) + lzma.compress(data + b"-12345|0|0|1337,", format = lzma.FORMAT_ALONE, filters = [
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{
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"id": lzma.FILTER_LZMA1,
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"preset": lzma.PRESET_DEFAULT,
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"dict_size": 1 << 21
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}
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])
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class Replay:
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_mode = Serializable(osuModes.STANDARD, TYPE_BYTE)
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_osu_version = Serializable(20131216, TYPE_INT)
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_beatmap_hash = Serializable(b"d41d8cd98f00b204e9800998ecf8427e", TYPE_STRING)
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_player_name = Serializable(b"osu!", TYPE_STRING)
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_score_hash = Serializable(b"d41d8cd98f00b204e9800998ecf8427e", TYPE_STRING)
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_score_300s = Serializable(0, TYPE_USHORT)
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_score_100s = Serializable(0, TYPE_USHORT)
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_score_50s = Serializable(0, TYPE_USHORT)
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_score_gekis = Serializable(0, TYPE_USHORT)
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_score_katus = Serializable(0, TYPE_USHORT)
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_score_miss = Serializable(0, TYPE_USHORT)
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_score = Serializable(0, TYPE_INT)
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_combo = Serializable(0, TYPE_USHORT)
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_perfect = Serializable(True, TYPE_BOOL)
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_mods = Serializable(osuMods.NOMOD, TYPE_INT)
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_lifebar_graph = Serializable(b"0|1,", TYPE_STRING)
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_timestamp = Serializable(0, TYPE_ULLONG)
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_replay_data = Serializable(b"", TYPE_BYTESTREAM, post = lzma_compress)
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_online_score_id= Serializable(0, TYPE_ULLONG)
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# Marker (Only used as attribute section marker for auto-serializing)
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_end_of_attributes = None
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def __init__(self, **kwargs):
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allowed_kwargs = {
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"mode": self.set_mode,
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"mods": self.set_mods,
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"osu_version": self.set_osu_version,
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"player_name": self.set_player_name,
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"replay_data": self.write
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}
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for k, v in kwargs.items():
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if k in allowed_kwargs.keys():
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allowed_kwargs[k](v) # Run callback func
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# --------------------------------------------------------------------------
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# Set validators -----------------------------------------------------------
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def set_mode(self, mode):
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if mode > 3 or mode < 0:
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raise Exception("Invalid mode")
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self._mode.value = mode
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def set_osu_version(self, osu_version):
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if type(osu_version) is not int:
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raise Exception("osu! version must be an int")
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self._osu_version.value = osu_version
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def set_beatmap_hash(self, md5_hash):
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if len(md5_hash) != 32 or len([x for x in md5_hash if x in string.hexdigits]) != 32:
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raise Exception("Invalid beatmap hash")
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self._beatmap_hash.value = md5_hash
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def set_beatmap_file(self, filepath):
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if not isfile(filepath):
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raise Exception("Beatmap file not found")
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with open(filepath, "rb") as f:
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self._beatmap_hash.value = md5_file(f)
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def set_player_name(self, player_name):
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self._player_name.value = player_name
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def set_score_hash(self, md5_hash):
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if type(md5_hash) is bytes:
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md5_hash = md5_hash.decode()
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if len(md5_hash) != 32 or len([x for x in md5_hash if x in string.hexdigits]) != 32:
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raise Exception("Invalid replay hash")
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self._score_hash.value = md5_hash.encode()
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def set_score(self, score = None, combo = None, s300 = None, s100 = None, s50 = None, sgekis = None, skatus = None, miss = None):
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if type(score) is int: self._score.value = score
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if type(combo) is int: self._combo.value = combo
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if type(s300) is int: self._score_300s.value = s300
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if type(s100) is int: self._score_100s.value = s100
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if type(s50) is int: self._score_50s.value = s50
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if type(sgekis) is int: self._score_gekis.value = sgekis
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if type(skatus) is int: self._score_katus.value = skatus
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if type(miss) is int: self._score_miss.value = miss
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def set_mods(self, mods):
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if mods < 0 or mods > (1 << 30) - 1:
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raise Exception("Mods are out of range")
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self._mods.value = mods
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def set_lifebar_graph(self, graph):
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t_graph = type(graph)
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if t_graph is list:
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self._lifebar_graph.value = b"".join(graph)
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elif t_graph is str:
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self._lifebar_graph.value = graph.encode()
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elif t_graph is bytes:
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self._lifebar_graph.value = graph
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else:
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raise Exception("Invalid lifebar data")
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def set_timestamp(self, timestamp, use_unix = True):
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if use_unix:
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timestamp += 62135599380000 # offset
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timestamp *= 10 ** 4
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self._timestamp.value = timestamp
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# --------------------------------------------------------------------------
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# Update variables ---------------------------------------------------------
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def update_perfect(self):
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m = [self._score_100s.value, self._score_50s.value, self._score_katus.value, self._score_miss.value]
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self._perfect.value = sum(m) == 0
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def update_score_hash(self):
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self.set_score_hash(
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md5_str("%d%s%s%s%d%d" % (
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self._combo.value, "osu", self._player_name.value,
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self._beatmap_hash.value, self._score.value, self.get_rank()
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))
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)
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def update(self):
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self.update_perfect()
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self.update_score_hash()
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# --------------------------------------------------------------------------
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# Get / Helpers ------------------------------------------------------------
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def get_hits(self):
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return sum([self._score_300s.value, self._score_100s.value, self._score_50s.value])
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def get_possible_hits(self):
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return self.get_hits() + self._score_miss.value
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def get_rank(self):
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hits = self.get_possible_hits()
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if hits == 0:
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print("Can not calculate rank without any score data (Defaulting to Fail)")
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return osuRanks.F
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r300 = self._score_300s.value / hits
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r50 = self._score_50s.value / hits
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h = osuMods.any_enabled(self._mods.value, osuMods.HIDDEN | osuMods.FLASHLIGHT)
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if r300 == 1:
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return osuRanks.SSH if h else osuRanks.SS
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if r300 > .9 and r50 <= .01 and self._score_miss.value == 0:
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return osuRanks.SH if h else osuRanks.S
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if r300 > .8 and self._score_miss.value == 0 or r300 > .9:
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return osuRanks.A
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if r300 > .7 and self._score_miss.value == 0 or r300 > .8:
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return osuRanks.B
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if r300 > .6:
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return osuRanks.C
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return osuRanks.D
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# --------------------------------------------------------------------------
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# Write replay data --------------------------------------------------------
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def write(self, frame):
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t_frame = type(frame)
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if t_frame is list:
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for _frame in frame: # (frames)
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self.write(_frame)
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return
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if t_frame is ReplayFrame:
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self._replay_data.value += bytes(frame)
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elif t_frame is bytes:
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self._replay_data.value += frame
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elif t_frame is str:
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self._replay_data.value += frame.encode()
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else:
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raise Exception("Invalid frame data")
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# --------------------------------------------------------------------------
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# IO replay data -----------------------------------------------------------
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def save(self, filename):
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self.update()
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serializer = Serializer()
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attribs = [ a for a in self.__dir__() if not a.startswith("__") ]
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for attrib in attribs:
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if attrib == "_end_of_attributes":
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break
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serializer.add( self.__getattribute__(attrib) ) # Add value to serializer
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with open(filename, "wb") as f:
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f.write( serializer.flush() )
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