You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
130 lines
4.0 KiB
130 lines
4.0 KiB
#!/usr/bin/env python3
|
|
import argparse
|
|
import hashlib
|
|
import json
|
|
import logging
|
|
import os
|
|
import requests
|
|
|
|
NEOSUPDATE_DIR = "/data/neoupdate"
|
|
|
|
RECOVERY_DEV = "/dev/block/bootdevice/by-name/recovery"
|
|
RECOVERY_COMMAND = "/cache/recovery/command"
|
|
|
|
|
|
def get_fn(url: str):
|
|
return os.path.join(NEOSUPDATE_DIR, os.path.basename(url))
|
|
|
|
|
|
def download_file(url: str, fn: str, sha256: str, display_name: str, cloudlog=logging) -> None:
|
|
# check if already downloaded
|
|
if check_hash(fn, sha256):
|
|
cloudlog.info(f"{display_name} already cached")
|
|
return
|
|
|
|
try:
|
|
with open(fn, "ab+") as f:
|
|
headers = {"Range": f"bytes={f.tell()}-"}
|
|
r = requests.get(url, stream=True, allow_redirects=True, headers=headers)
|
|
r.raise_for_status()
|
|
|
|
total = int(r.headers['Content-Length'])
|
|
if 'Content-Range' in r.headers:
|
|
total = int(r.headers['Content-Range'].split('/')[-1])
|
|
|
|
for chunk in r.iter_content(chunk_size=1024 * 1024):
|
|
f.write(chunk)
|
|
print(f"Downloading {display_name}: {f.tell() / total * 100}", flush=True)
|
|
except Exception:
|
|
cloudlog.error("download error")
|
|
if os.path.isfile(fn):
|
|
os.unlink(fn)
|
|
raise
|
|
|
|
if not check_hash(fn, sha256):
|
|
if os.path.isfile(fn):
|
|
os.unlink(fn)
|
|
raise Exception("downloaded update failed hash check")
|
|
|
|
|
|
def check_hash(fn: str, sha256: str, length: int = -1) -> bool:
|
|
if not os.path.exists(fn):
|
|
return False
|
|
|
|
h = hashlib.sha256()
|
|
with open(fn, "rb") as f:
|
|
while f.tell() != length:
|
|
r = min(max(0, length - f.tell()), 1024 * 1024) if length > 0 else 1024 * 1024
|
|
dat = f.read(r)
|
|
if not dat:
|
|
break
|
|
h.update(dat)
|
|
return h.hexdigest().lower() == sha256.lower()
|
|
|
|
|
|
def flash_update(update_fn: str, out_path: str) -> None:
|
|
with open(update_fn, "rb") as update, open(out_path, "w+b") as out:
|
|
while True:
|
|
dat = update.read(8192)
|
|
if len(dat) == 0:
|
|
break
|
|
out.write(dat)
|
|
|
|
|
|
def download_neos_update(manifest_path: str, cloudlog=logging) -> None:
|
|
with open(manifest_path) as f:
|
|
m = json.load(f)
|
|
|
|
os.makedirs(NEOSUPDATE_DIR, exist_ok=True)
|
|
|
|
# handle recovery updates
|
|
if not check_hash(RECOVERY_DEV, m['recovery_hash'], m['recovery_len']):
|
|
cloudlog.info("recovery needs update")
|
|
recovery_fn = os.path.join(NEOSUPDATE_DIR, os.path.basename(m['recovery_url']))
|
|
download_file(m['recovery_url'], recovery_fn, m['recovery_hash'], "recovery", cloudlog)
|
|
|
|
flash_update(recovery_fn, RECOVERY_DEV)
|
|
assert check_hash(RECOVERY_DEV, m['recovery_hash'], m['recovery_len']), "recovery flash corrupted"
|
|
cloudlog.info("recovery successfully flashed")
|
|
|
|
# download OTA update
|
|
download_file(m['ota_url'], get_fn(m['ota_url']), m['ota_hash'], "system", cloudlog)
|
|
|
|
|
|
def verify_update_ready(manifest_path: str) -> bool:
|
|
with open(manifest_path) as f:
|
|
m = json.load(f)
|
|
|
|
ota_downloaded = check_hash(get_fn(m['ota_url']), m['ota_hash'])
|
|
recovery_flashed = check_hash(RECOVERY_DEV, m['recovery_hash'], m['recovery_len'])
|
|
return ota_downloaded and recovery_flashed
|
|
|
|
|
|
def perform_ota_update(manifest_path: str) -> None:
|
|
with open(manifest_path) as f:
|
|
m = json.load(f)
|
|
|
|
# reboot into recovery
|
|
ota_fn = get_fn(m['ota_url'])
|
|
with open(RECOVERY_COMMAND, "w") as rf:
|
|
rf.write(f"--update_package={ota_fn}\n")
|
|
os.system("service call power 16 i32 0 s16 recovery i32 1")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
parser = argparse.ArgumentParser(description="NEOS update utility",
|
|
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
|
|
parser.add_argument("--swap", action="store_true", help="Peform update after downloading")
|
|
parser.add_argument("--swap-if-ready", action="store_true", help="Perform update if already downloaded")
|
|
parser.add_argument("manifest", help="Manifest json")
|
|
args = parser.parse_args()
|
|
|
|
logging.basicConfig(level=logging.INFO)
|
|
|
|
if args.swap_if_ready:
|
|
if verify_update_ready(args.manifest):
|
|
perform_ota_update(args.manifest)
|
|
else:
|
|
download_neos_update(args.manifest, logging)
|
|
if args.swap:
|
|
perform_ota_update(args.manifest)
|
|
|