mirror of
https://github.com/tuna/tunasync-scripts.git
synced 2025-04-20 12:42:50 +00:00
345 lines
14 KiB
Python
Executable File
345 lines
14 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
import hashlib
|
|
import traceback
|
|
import json
|
|
import os
|
|
import re
|
|
import shutil
|
|
import subprocess as sp
|
|
import tempfile
|
|
import argparse
|
|
import bz2
|
|
import gzip
|
|
import lzma
|
|
import time
|
|
from email.utils import parsedate_to_datetime
|
|
from pathlib import Path
|
|
from typing import List, Dict, Set, Tuple, IO
|
|
|
|
import requests
|
|
|
|
|
|
APT_SYNC_USER_AGENT = os.getenv("APT_SYNC_USER_AGENT", "APT-Mirror-Tool/1.0")
|
|
requests.utils.default_user_agent = lambda: APT_SYNC_USER_AGENT
|
|
|
|
OS_TEMPLATE = {
|
|
'ubuntu-lts': ["xenial", "bionic", "focal"],
|
|
'debian-current': ["jessie", "stretch", "buster", "bullseye"],
|
|
'debian-latest2': ["buster", "bullseye"],
|
|
'debian-latest': ["bullseye"],
|
|
}
|
|
ARCH_NO_PKGIDX = ['dep11', 'i18n', 'cnf']
|
|
MAX_RETRY=int(os.getenv('MAX_RETRY', '3'))
|
|
DOWNLOAD_TIMEOUT=int(os.getenv('DOWNLOAD_TIMEOUT', '1800'))
|
|
REPO_SIZE_FILE = os.getenv('REPO_SIZE_FILE', '')
|
|
|
|
pattern_os_template = re.compile(r"@\{(.+)\}")
|
|
pattern_package_name = re.compile(r"^Filename: (.+)$", re.MULTILINE)
|
|
pattern_package_size = re.compile(r"^Size: (\d+)$", re.MULTILINE)
|
|
pattern_package_sha256 = re.compile(r"^SHA256: (\w{64})$", re.MULTILINE)
|
|
download_cache = dict()
|
|
|
|
def check_args(prop: str, lst: List[str]):
|
|
for s in lst:
|
|
if len(s)==0 or ' ' in s:
|
|
raise ValueError(f"Invalid item in {prop}: {repr(s)}")
|
|
|
|
def replace_os_template(os_list: List[str]) -> List[str]:
|
|
ret = []
|
|
for i in os_list:
|
|
matched = pattern_os_template.search(i)
|
|
if matched:
|
|
for os in OS_TEMPLATE[matched.group(1)]:
|
|
ret.append(pattern_os_template.sub(os, i))
|
|
elif i.startswith('@'):
|
|
ret.extend(OS_TEMPLATE[i[1:]])
|
|
else:
|
|
ret.append(i)
|
|
return ret
|
|
|
|
def check_and_download(url: str, dst_file: Path, caching = False)->int:
|
|
try:
|
|
if caching:
|
|
if url in download_cache:
|
|
print(f"Using cached content: {url}", flush=True)
|
|
with dst_file.open('wb') as f:
|
|
f.write(download_cache[url])
|
|
return 0
|
|
download_cache[url] = bytes()
|
|
start = time.time()
|
|
with requests.get(url, stream=True, timeout=(5, 10)) as r:
|
|
r.raise_for_status()
|
|
if 'last-modified' in r.headers:
|
|
remote_ts = parsedate_to_datetime(
|
|
r.headers['last-modified']).timestamp()
|
|
else: remote_ts = None
|
|
|
|
with dst_file.open('wb') as f:
|
|
for chunk in r.iter_content(chunk_size=1024**2):
|
|
if time.time() - start > DOWNLOAD_TIMEOUT:
|
|
raise TimeoutError("Download timeout")
|
|
if not chunk: continue # filter out keep-alive new chunks
|
|
|
|
f.write(chunk)
|
|
if caching: download_cache[url] += chunk
|
|
if remote_ts is not None:
|
|
os.utime(dst_file, (remote_ts, remote_ts))
|
|
return 0
|
|
except BaseException as e:
|
|
print(e, flush=True)
|
|
if dst_file.is_file(): dst_file.unlink()
|
|
if url in download_cache: del download_cache[url]
|
|
return 1
|
|
|
|
def mkdir_with_dot_tmp(folder: Path)->Tuple[Path, Path]:
|
|
tmpdir = folder / ".tmp"
|
|
if tmpdir.is_dir():
|
|
shutil.rmtree(str(tmpdir))
|
|
tmpdir.mkdir(parents=True, exist_ok=True)
|
|
return (folder, tmpdir)
|
|
|
|
def move_files_in(src: Path, dst: Path):
|
|
empty = True
|
|
for file in src.glob('*'):
|
|
empty = False
|
|
print(f"moving {file} to {dst}")
|
|
# shutil.move(str(file), str(dst))
|
|
if file.is_dir():
|
|
(dst / file.name).mkdir(parents=True, exist_ok=True)
|
|
move_files_in(file, dst / file.name)
|
|
file.rmdir() # rmdir wont fail as all files in it have been moved
|
|
else:
|
|
file.rename(dst / file.name) # Overwrite files
|
|
if empty:
|
|
print(f"{src} is empty")
|
|
|
|
def apt_mirror(base_url: str, dist: str, repo: str, arch: str, dest_base_dir: Path, deb_set: Dict[str, int])->int:
|
|
if not dest_base_dir.is_dir():
|
|
print("Destination directory is empty, cannot continue")
|
|
return 1
|
|
print(f"Started mirroring {base_url} {dist}, {repo}, {arch}!", flush=True)
|
|
|
|
# download Release files
|
|
dist_dir,dist_tmp_dir = mkdir_with_dot_tmp(dest_base_dir / "dists" / dist)
|
|
check_and_download(f"{base_url}/dists/{dist}/InRelease",dist_tmp_dir / "InRelease", caching=True)
|
|
if check_and_download(f"{base_url}/dists/{dist}/Release",dist_tmp_dir / "Release", caching=True) != 0:
|
|
print("Invalid Repository")
|
|
if not (dist_dir/"Release").is_file():
|
|
print(f"{dist_dir/'Release'} never existed, upstream may not provide packages for {dist}, ignore this error")
|
|
return 0
|
|
return 1
|
|
check_and_download(f"{base_url}/dists/{dist}/Release.gpg",dist_tmp_dir / "Release.gpg", caching=True)
|
|
|
|
comp_dir,comp_tmp_dir = mkdir_with_dot_tmp(dist_dir / repo)
|
|
|
|
# load Package Index URLs from the Release file
|
|
release_file = dist_tmp_dir / "Release"
|
|
arch_dir = arch if arch in ARCH_NO_PKGIDX else f"binary-{arch}"
|
|
pkgidx_dir,pkgidx_tmp_dir = mkdir_with_dot_tmp(comp_dir / arch_dir)
|
|
with open(release_file, "r") as fd:
|
|
pkgidx_content=None
|
|
cnt_start=False
|
|
for line in fd:
|
|
if cnt_start:
|
|
fields = line.split()
|
|
if len(fields) != 3 or len(fields[0]) != 64: # 64 is SHA-256 checksum length
|
|
break
|
|
checksum, filesize, filename = tuple(fields)
|
|
if filename.startswith(f"{repo}/{arch_dir}/") or \
|
|
filename.startswith(f"{repo}/Contents-{arch}") or \
|
|
filename.startswith(f"Contents-{arch}"):
|
|
fn = Path(filename)
|
|
if len(fn.parts) <= 3:
|
|
# Contents-amd64.gz
|
|
# main/Contents-amd64.gz
|
|
# main/binary-all/Packages
|
|
pkgidx_file = dist_dir / fn.parent / ".tmp" / fn.name
|
|
else:
|
|
# main/dep11/by-hash/MD5Sum/0af5c69679a24671cfd7579095a9cb5e
|
|
# deep_tmp_dir is in pkgidx_tmp_dir hence no extra garbage collection needed
|
|
deep_tmp_dir = dist_dir / Path(fn.parts[0]) / Path(fn.parts[1]) / ".tmp" / Path('/'.join(fn.parts[2:-1]))
|
|
deep_tmp_dir.mkdir(parents=True, exist_ok=True)
|
|
pkgidx_file = deep_tmp_dir / fn.name
|
|
else:
|
|
print(f"Ignore the file {filename}")
|
|
continue
|
|
pkglist_url = f"{base_url}/dists/{dist}/{filename}"
|
|
if check_and_download(pkglist_url, pkgidx_file) != 0:
|
|
print("Failed to download:", pkglist_url)
|
|
continue
|
|
|
|
with pkgidx_file.open('rb') as t: content = t.read()
|
|
if len(content) != int(filesize):
|
|
print(f"Invalid size of {pkgidx_file}, expected {filesize}, skipped")
|
|
pkgidx_file.unlink()
|
|
continue
|
|
if hashlib.sha256(content).hexdigest() != checksum:
|
|
print(f"Invalid checksum of {pkgidx_file}, expected {checksum}, skipped")
|
|
pkgidx_file.unlink()
|
|
continue
|
|
if pkgidx_content is None and pkgidx_file.stem == 'Packages':
|
|
print(f"getting packages index content from {pkgidx_file.name}", flush=True)
|
|
suffix = pkgidx_file.suffix
|
|
if suffix == '.xz':
|
|
pkgidx_content = lzma.decompress(content).decode('utf-8')
|
|
elif suffix == '.bz2':
|
|
pkgidx_content = bz2.decompress(content).decode('utf-8')
|
|
elif suffix == '.gz':
|
|
pkgidx_content = gzip.decompress(content).decode('utf-8')
|
|
elif suffix == '':
|
|
pkgidx_content = content.decode('utf-8')
|
|
else:
|
|
print("unsupported format")
|
|
|
|
# Currently only support SHA-256 checksum, because
|
|
# "Clients may not use the MD5Sum and SHA1 fields for security purposes, and must require a SHA256 or a SHA512 field."
|
|
# from https://wiki.debian.org/DebianRepository/Format#A.22Release.22_files
|
|
if line.startswith('SHA256:'):
|
|
cnt_start = True
|
|
if not cnt_start:
|
|
print("Cannot find SHA-256 checksum")
|
|
return 1
|
|
|
|
def collect_tmp_dir():
|
|
try:
|
|
move_files_in(pkgidx_tmp_dir, pkgidx_dir)
|
|
move_files_in(comp_tmp_dir, comp_dir)
|
|
move_files_in(dist_tmp_dir, dist_dir)
|
|
|
|
pkgidx_tmp_dir.rmdir()
|
|
comp_tmp_dir.rmdir()
|
|
dist_tmp_dir.rmdir()
|
|
return 0
|
|
except:
|
|
traceback.print_exc()
|
|
return 1
|
|
if arch in ARCH_NO_PKGIDX:
|
|
if collect_tmp_dir() == 1:
|
|
return 1
|
|
print(f"Mirroring {base_url} {dist}, {repo}, {arch} done!")
|
|
return 0
|
|
|
|
if pkgidx_content is None:
|
|
print("index is empty, failed")
|
|
if len(list(pkgidx_dir.glob('Packages*'))) == 0:
|
|
print(f"{pkgidx_dir/'Packages'} never existed, upstream may not provide {dist}/{repo}/{arch}, ignore this error")
|
|
return 0
|
|
return 1
|
|
|
|
# Download packages
|
|
err = 0
|
|
deb_count = 0
|
|
deb_size = 0
|
|
for pkg in pkgidx_content.split('\n\n'):
|
|
if len(pkg) < 10: # ignore blanks
|
|
continue
|
|
try:
|
|
pkg_filename = pattern_package_name.search(pkg).group(1)
|
|
pkg_size = int(pattern_package_size.search(pkg).group(1))
|
|
pkg_checksum = pattern_package_sha256.search(pkg).group(1)
|
|
except:
|
|
print("Failed to parse one package description", flush=True)
|
|
traceback.print_exc()
|
|
err = 1
|
|
continue
|
|
deb_count += 1
|
|
deb_size += pkg_size
|
|
|
|
dest_filename = dest_base_dir / pkg_filename
|
|
dest_dir = dest_filename.parent
|
|
if not dest_dir.is_dir():
|
|
dest_dir.mkdir(parents=True, exist_ok=True)
|
|
if dest_filename.suffix == '.deb':
|
|
deb_set[str(dest_filename.relative_to(dest_base_dir))] = pkg_size
|
|
if dest_filename.is_file() and dest_filename.stat().st_size == pkg_size:
|
|
print(f"Skipping {pkg_filename}, size {pkg_size}")
|
|
continue
|
|
|
|
pkg_url=f"{base_url}/{pkg_filename}"
|
|
dest_tmp_filename = dest_filename.with_name('._syncing_.' + dest_filename.name)
|
|
for retry in range(MAX_RETRY):
|
|
print(f"downloading {pkg_url} to {dest_filename}", flush=True)
|
|
# break # dry run
|
|
if check_and_download(pkg_url, dest_tmp_filename) != 0:
|
|
continue
|
|
|
|
sha = hashlib.sha256()
|
|
with dest_tmp_filename.open("rb") as f:
|
|
for block in iter(lambda: f.read(1024**2), b""):
|
|
sha.update(block)
|
|
if sha.hexdigest() != pkg_checksum:
|
|
print(f"Invalid checksum of {dest_filename}, expected {pkg_checksum}")
|
|
dest_tmp_filename.unlink()
|
|
continue
|
|
dest_tmp_filename.rename(dest_filename)
|
|
break
|
|
else:
|
|
print(f"Failed to download {dest_filename}")
|
|
err = 1
|
|
|
|
if collect_tmp_dir() == 1:
|
|
return 1
|
|
print(f"Mirroring {base_url} {dist}, {repo}, {arch} done!")
|
|
print(f"{deb_count} packages, {deb_size} bytes in total", flush=True)
|
|
return err
|
|
|
|
def apt_delete_old_debs(dest_base_dir: Path, remote_set: Dict[str, int], dry_run: bool):
|
|
on_disk = set([
|
|
str(i.relative_to(dest_base_dir)) for i in dest_base_dir.glob('**/*.deb')])
|
|
deleting = on_disk - remote_set.keys()
|
|
# print(on_disk)
|
|
# print(remote_set)
|
|
print(f"Deleting {len(deleting)} packages not in the index{' (dry run)' if dry_run else ''}", flush=True)
|
|
for i in deleting:
|
|
if dry_run:
|
|
print("Will delete", i)
|
|
else:
|
|
print("Deleting", i)
|
|
(dest_base_dir/i).unlink()
|
|
|
|
def main():
|
|
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument("base_url", type=str, help="base URL")
|
|
parser.add_argument("os_version", type=str, help="e.g. buster,@ubuntu-lts")
|
|
parser.add_argument("component", type=str, help="e.g. multiverse,contrib")
|
|
parser.add_argument("arch", type=str, help="e.g. i386,amd64")
|
|
parser.add_argument("working_dir", type=Path, help="working directory")
|
|
parser.add_argument("--delete", action='store_true',
|
|
help='delete unreferenced package files')
|
|
parser.add_argument("--delete-dry-run", action='store_true',
|
|
help='print package files to be deleted only')
|
|
args = parser.parse_args()
|
|
|
|
os_list = args.os_version.split(',')
|
|
check_args("os_version", os_list)
|
|
component_list = args.component.split(',')
|
|
check_args("component", component_list)
|
|
arch_list = args.arch.split(',')
|
|
check_args("arch", arch_list)
|
|
|
|
os_list = replace_os_template(os_list)
|
|
|
|
args.working_dir.mkdir(parents=True, exist_ok=True)
|
|
failed = []
|
|
deb_set = {}
|
|
|
|
for os in os_list:
|
|
for comp in component_list:
|
|
for arch in arch_list:
|
|
if apt_mirror(args.base_url, os, comp, arch, args.working_dir, deb_set=deb_set) != 0:
|
|
failed.append((os, comp, arch))
|
|
if len(failed) > 0:
|
|
print(f"Failed APT repos of {args.base_url}: ", failed)
|
|
return
|
|
if args.delete or args.delete_dry_run:
|
|
apt_delete_old_debs(args.working_dir, deb_set, args.delete_dry_run)
|
|
|
|
if len(REPO_SIZE_FILE) > 0:
|
|
with open(REPO_SIZE_FILE, "a") as fd:
|
|
total_size = sum(deb_set.values())
|
|
fd.write(f"+{total_size}")
|
|
|
|
if __name__ == "__main__":
|
|
main()
|