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lets/helpers/mapsHelper.py

57 lines
1.9 KiB
Python

import os
from common import generalUtils
from common.log import logUtils as log
from constants import exceptions
from helpers import osuapiHelper
def isBeatmap(fileName=None, content=None):
if fileName is not None:
with open(fileName, "rb") as f:
firstLine = f.readline().decode("utf-8-sig").strip()
elif content is not None:
try:
firstLine = content.decode("utf-8-sig").split("\n")[0].strip()
except IndexError:
return False
else:
raise ValueError("Either `fileName` or `content` must be provided.")
return firstLine.lower().startswith("osu file format v")
def cacheMap(mapFile, _beatmap):
# Check if we have to download the .osu file
download = False
if not os.path.isfile(mapFile):
# .osu file doesn't exist. We must download it
download = True
else:
# File exists, check md5
if generalUtils.fileMd5(mapFile) != _beatmap.fileMD5 or not isBeatmap(mapFile):
# MD5 don't match, redownload .osu file
download = True
# Download .osu file if needed
if download:
log.debug("maps ~> Downloading {} osu file".format(_beatmap.beatmapID))
# Get .osu file from osu servers
fileContent = osuapiHelper.getOsuFileFromID(_beatmap.beatmapID)
# Make sure osu servers returned something
if fileContent is None or not isBeatmap(content=fileContent):
raise exceptions.osuApiFailException("maps")
# Delete old .osu file if it exists
if os.path.isfile(mapFile):
os.remove(mapFile)
# Save .osu file
with open(mapFile, "wb+") as f:
f.write(fileContent)
else:
# Map file is already in folder
log.debug("maps ~> Beatmap found in cache!")
def cachedMapPath(beatmap_id):
return ".data/beatmaps/{}.osu".format(beatmap_id)