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[models] Add build id to manifest meta

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derrod 2020-04-21 16:55:47 +02:00
parent 988be667df
commit a2197aec12
1 changed files with 18 additions and 0 deletions
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18
legendary/models/manifest.py
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@ -5,6 +5,8 @@ import hashlib
import logging
import struct
import zlib
from base64 import b64encode
from io import BytesIO
logger = logging.getLogger('Manifest')
@ -127,6 +129,22 @@ class ManifestMeta:
self.prereq_name = ''
self.prereq_path = ''
self.prereq_args = ''
# this build id is used for something called "delta file" which I guess I'll have to implement eventually
self._build_id = ''
@property
def build_id(self):
if self._build_id:
return self._build_id
# this took a while to figure out and get right and I'm still not sure if it'll work for all games :x
s = hashlib.sha1()
s.update(struct.pack('<I', self.app_id))
s.update(self.app_name.encode('utf-8'))
s.update(self.build_version.encode('utf-8'))
s.update(self.launch_exe.encode('utf-8'))
s.update(self.launch_command.encode('utf-8'))
self._build_id = b64encode(s.digest()).replace('+', '-').replace('/', '_').replace('=', '')
return self._build_id
@classmethod
def read(cls, bio):