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proton: Preserve MachineGuid when downgrading prefix and generate unique for the new prefix.

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CW-Bug-Id: #24414
This commit is contained in:
Paul Gofman 2024-10-30 11:59:52 -06:00
parent d3084bf598
commit 41100ddecd
1 changed files with 58 additions and 0 deletions
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58
proton
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@ -14,6 +14,7 @@ import stat
import subprocess import subprocess
import sys import sys
import shlex import shlex
import uuid
from ctypes import CDLL from ctypes import CDLL
from ctypes import CFUNCTYPE from ctypes import CFUNCTYPE
@ -405,6 +406,57 @@ def set_dir_casefold_bit(dir_path):
pass pass
os.close(dr) os.close(dr)
def get_replace_reg_value(file, key, name, new_value=None):
if not file_exists(file, follow_symlinks=True):
return None
replaced = False
out = None
if new_value is not None:
out = open(file + ".new", "w")
found_key = False
old_value = None
namestr="\"" + name + "\"="
with open(file, "r") as reg_in:
for line in reg_in:
if not replaced:
if line[0] == '[':
if found_key:
if out is not None:
out.close()
return None
if line[1:len(key) + 1] == key:
found_key = True
elif found_key:
idx = line.find(namestr)
if idx != -1:
old_value = line[idx + len(namestr):]
if out is not None:
out.write(namestr + new_value)
replaced = True
continue
else:
return old_value
if out is not None:
out.write(line)
if out is not None:
out.close()
if replaced:
try:
os.rename(file, file + ".old")
except OSError:
os.remove(file)
pass
try:
os.rename(file + ".new", file)
except OSError:
log("Unable to write new registry file to " + file)
pass
return old_value
class Proton: class Proton:
def __init__(self, base_dir): def __init__(self, base_dir):
self.base_dir = base_dir + "/" self.base_dir = base_dir + "/"
@ -478,6 +530,7 @@ class CompatData:
self.config_info_file = self.path("config_info") self.config_info_file = self.path("config_info")
self.tracked_files_file = self.path("tracked_files") self.tracked_files_file = self.path("tracked_files")
self.prefix_lock = FileLock(self.path("pfx.lock"), timeout=-1) self.prefix_lock = FileLock(self.path("pfx.lock"), timeout=-1)
self.old_machine_guid = None
def path(self, d): def path(self, d):
return self.base_dir + d return self.base_dir + d
@ -531,6 +584,7 @@ class CompatData:
(int(new_proton_maj) == int(old_proton_maj) and \ (int(new_proton_maj) == int(old_proton_maj) and \
int(new_proton_min) < int(old_proton_min)): int(new_proton_min) < int(old_proton_min)):
log("Removing newer prefix") log("Removing newer prefix")
self.old_machine_guid = get_replace_reg_value(self.prefix_dir + "system.reg", "Software\\\\Microsoft\\\\Cryptography", "MachineGuid")
if old_proton_ver == "3.7" and not file_exists(self.tracked_files_file, follow_symlinks=True): if old_proton_ver == "3.7" and not file_exists(self.tracked_files_file, follow_symlinks=True):
#proton 3.7 did not generate tracked_files, so copy it into place first #proton 3.7 did not generate tracked_files, so copy it into place first
try_copy(g_proton.path("proton_3.7_tracked_files"), self.tracked_files_file) try_copy(g_proton.path("proton_3.7_tracked_files"), self.tracked_files_file)
@ -790,6 +844,10 @@ class CompatData:
if not file_exists(self.prefix_dir + "/user.reg", follow_symlinks=True): if not file_exists(self.prefix_dir + "/user.reg", follow_symlinks=True):
self.copy_pfx() self.copy_pfx()
machine_guid = self.old_machine_guid
if machine_guid is None:
machine_guid = "\"" + str(uuid.uuid4()) + "\""
get_replace_reg_value(self.prefix_dir + "system.reg", "Software\\\\Microsoft\\\\Cryptography", "MachineGuid", machine_guid)
self.migrate_user_paths() self.migrate_user_paths()