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Python script to rewrite the `use_mac_fileprovider` setting for Google Drive to true to enable File Provider.
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#!/usr/bin/env python3 | |
# see https://apple.stackexchange.com/questions/420959/spotlight-indexing-of-google-drive-file-stream-disabled-on-restart/424445#424445 for an explanation | |
# based on https://gist.github.com/emersonford/85cc74f7f90c81d1b75c3c246124591d | |
import os | |
from copy import deepcopy | |
from math import log | |
from pathlib import Path | |
DEBUG = 0 | |
DRIVEFS_PATH = os.environ["HOME"] + "/Library/Application Support/Google/DriveFS" | |
def print_field(field_num, wire_type, pl, byts): | |
if DEBUG: | |
print( | |
"field", | |
field_num, | |
": wire_type", | |
wire_type, | |
": payload", | |
pl[0] if wire_type != 2 else byts[pl[1] : pl[2]], | |
": byte_size", | |
pl[2] - pl[1], | |
sep="\t", | |
) | |
# byte -> (byte, byte) | |
def split_msb(byt): | |
return (byt & 0b1000_0000) >> 7, byt & 0b0111_1111 | |
def get_wire_type(varint): | |
return varint & 0b111 | |
def get_field_number(varint): | |
return varint >> 3 | |
# bytearray -> int | |
def decode_varint(bytarr, cursor): | |
varint = 0 | |
contbit = 1 | |
count = 0 | |
while contbit: | |
contbit, val = split_msb(bytarr[cursor + count]) | |
varint |= val << (count * 7) | |
count += 1 | |
return varint, cursor + count | |
def decode_fixed(bytarr, cursor, byts): | |
val = 0 | |
for i in range(byts): | |
val |= bytarr[cursor] << (i * 8) | |
cursor += 1 | |
return val, cursor | |
# bytearray, int -> Either (cursor, wire_type, payload) or (wire_type, payload_start, payload_end) | |
def decode_bytes(bytarr, cursor): | |
key, cursor = decode_varint(bytarr, cursor) | |
field_num = get_field_number(key) | |
wire_type = get_wire_type(key) | |
if wire_type in {0, 1, 5}: | |
oldcursor = cursor | |
val, cursor = ( | |
decode_varint(bytarr, cursor) | |
if wire_type == 0 | |
else decode_fixed(bytarr, cursor, 8 if wire_type == 1 else 4) | |
) | |
return field_num, wire_type, cursor, (val, oldcursor, cursor) | |
if wire_type == 2: | |
length, cursor = decode_varint(bytarr, cursor) | |
return field_num, wire_type, cursor + length, (None, cursor, cursor + length) | |
raise RuntimeError("Unexpected file format") | |
def encode_int_to_varint(num, size): | |
# get signed version | |
retval = 0 | |
for i in range(size): | |
contbit = 0b1000_0000 if i != size - 1 else 0b0000_0000 | |
val = (0b111_1111 & num) | contbit | |
num = num >> 7 | |
retval = retval << 8 | |
retval |= val | |
return retval.to_bytes(length=size, byteorder="big", signed=False) | |
def check_valid_file(filebytes): | |
try: | |
field_num, wire_type, cursor, pl = decode_bytes(filebytes, 0) | |
if wire_type != 2 or field_num != 1: | |
return False | |
cursor = pl[1] | |
end_of_struct = pl[2] | |
while cursor != end_of_struct: | |
field_num, wire_type, cursor, pl = decode_bytes(filebytes, cursor) | |
print_field(field_num, wire_type, pl, filebytes) | |
field_num, wire_type, cursor, pl = decode_bytes(filebytes, cursor) | |
if wire_type != 2 or field_num != 2: | |
return False | |
cursor = pl[1] | |
end_of_struct = pl[2] | |
while cursor != end_of_struct: | |
field_num, wire_type, cursor, pl = decode_bytes(filebytes, cursor) | |
print_field(field_num, wire_type, pl, filebytes) | |
if cursor != len(filebytes): | |
return False | |
except RuntimeError: | |
return False | |
return True | |
def get_to_config_field(filebytes): | |
field_num, wire_type, cursor, pl = decode_bytes(filebytes, 0) | |
if wire_type != 2: | |
raise RuntimeError("Unexpected file format") | |
if DEBUG: | |
print("found first struct with field_num:", field_num, "start:", pl[1]) | |
cursor = pl[1] | |
while field_num != 81: | |
field_num, wire_type, cursor, pl = decode_bytes(filebytes, cursor) | |
print_field(field_num, wire_type, pl, filebytes) | |
return field_num, wire_type, cursor, pl | |
def from_twos_complement(num): | |
return int.from_bytes( | |
num.to_bytes(length=8, byteorder="little", signed=False), | |
byteorder="little", | |
signed=True, | |
) | |
if __name__ == "__main__": | |
for file in os.listdir(DRIVEFS_PATH): | |
fp = DRIVEFS_PATH + "/" + file + "/core_feature_config" | |
if os.path.isfile(fp): | |
try: | |
with open(fp, "rb") as f: | |
filebytes = bytearray(f.read()) | |
field_num, wire_type, cursor, pl = get_to_config_field(filebytes) | |
print( | |
"Found Google Drive FS Account", | |
file, | |
"with use_mac_fileprovider:", | |
str(from_twos_complement(pl[0])) + "...", | |
) | |
confirm = input("Enable File Provider for this account (yes/no)? ") | |
if confirm != "yes": | |
print("Skipping...") | |
continue | |
newfilebytes = deepcopy(filebytes) | |
newfilebytes[pl[1] : pl[2]] = encode_int_to_varint( | |
1, pl[2] - pl[1] | |
) | |
print( | |
"Checking if proposed write to", | |
fp, | |
"is valid... ", | |
end="", | |
) | |
if not check_valid_file(newfilebytes): | |
print("FAILED!") | |
raise RuntimeError( | |
"Proposed writes are not valid, core_feature_config will not be changed." | |
) | |
else: | |
print("OK!") | |
print("Writing changes... ", end="") | |
with open(fp, "wb") as f: | |
f.write(newfilebytes) | |
print("OK!") | |
except (OverflowError, RuntimeError) as e: | |
print("Failed to process account", file + ":", e) | |
continue | |
print(">> All accounts processed, done! <<") | |
print( | |
">> If any account's port was changed, please quit and relaunch Google Drive. <<" | |
) |
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