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[models] Explicitly specify serialisation version

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Newer features may not be supported, so don't use the (potentially unsupported)
ones we read from the input.
This commit is contained in:
derrod 2021-10-29 14:27:15 +02:00
parent 3145fdb534
commit 926e89c89a
1 changed files with 14 additions and 6 deletions
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20
legendary/models/manifest.py
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@ -61,6 +61,7 @@ def get_chunk_dir(version):
class Manifest:
header_magic = 0x44BEC00C
serialisation_version = 18
def __init__(self):
self.header_size = 41
@ -162,7 +163,7 @@ class Manifest:
bio.write(struct.pack('<I', self.size_compressed))
bio.write(self.sha_hash)
bio.write(struct.pack('B', self.stored_as))
bio.write(struct.pack('<I', self.version))
bio.write(struct.pack('<I', self.serialisation_version))
bio.write(self.data)
if not fp:
@ -172,6 +173,8 @@ class Manifest:
class ManifestMeta:
serialisation_version = 0
def __init__(self):
self.meta_size = 0
self.data_version = 0
@ -247,7 +250,7 @@ class ManifestMeta:
meta_start = bio.tell()
bio.write(struct.pack('<I', 0)) # placeholder size
bio.write(struct.pack('B', self.data_version))
bio.write(struct.pack('B', self.serialisation_version))
bio.write(struct.pack('<I', self.feature_level))
bio.write(struct.pack('B', self.is_file_data))
bio.write(struct.pack('<I', self.app_id))
@ -274,6 +277,8 @@ class ManifestMeta:
class CDL:
serialisation_version = 0
def __init__(self):
self.version = 0
self.size = 0
@ -382,7 +387,7 @@ class CDL:
def write(self, bio):
cdl_start = bio.tell()
bio.write(struct.pack('<I', 0)) # placeholder size
bio.write(struct.pack('B', self.version))
bio.write(struct.pack('B', self.serialisation_version))
bio.write(struct.pack('<I', len(self.elements)))
for chunk in self.elements:
@ -461,6 +466,8 @@ class ChunkInfo:
class FML:
serialisation_version = 0
def __init__(self):
self.version = 0
self.size = 0
@ -561,8 +568,7 @@ class FML:
def write(self, bio):
fml_start = bio.tell()
bio.write(struct.pack('<I', 0)) # placeholder size
# currently we only serialise version 0
bio.write(struct.pack('B', 0)) # self.version
bio.write(struct.pack('B', self.serialisation_version))
bio.write(struct.pack('<I', len(self.elements)))
for fm in self.elements:
@ -667,6 +673,8 @@ class ChunkPart:
class CustomFields:
serialisation_version = 0
def __init__(self):
self.size = 0
self.version = 0
@ -724,7 +732,7 @@ class CustomFields:
def write(self, bio):
cf_start = bio.tell()
bio.write(struct.pack('<I', 0)) # placeholder size
bio.write(struct.pack('B', self.version))
bio.write(struct.pack('B', self.serialisation_version))
bio.write(struct.pack('<I', len(self._dict)))
for key in self.keys():