PixelLauncher 2.1.0 — стабильная сборка
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"""Скачивание и установка Java с Eclipse Adoptium, если она не найдена.
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Ставит JRE в `.launcher/runtime/java-<major>` и возвращает путь к java.
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"""
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import os
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import shutil
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import sys
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import tarfile
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import zipfile
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from . import http
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from .i18n import T
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API = ("https://api.adoptium.net/v3/binary/latest/{feature}/ga/"
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"{platform}/{arch}/jre/hotspot/normal/eclipse")
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LTS = (8, 11, 17, 21, 25)
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def _platform():
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if sys.platform.startswith("win"):
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return "windows"
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if sys.platform == "darwin":
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return "mac"
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return "linux"
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def _arch():
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try:
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import platform
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m = platform.machine().lower()
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except Exception: # noqa: BLE001
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return "x64"
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if m in ("arm64", "aarch64"):
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return "aarch64"
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if m in ("x86_64", "amd64"):
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return "x64"
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return "x86"
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def _exe():
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return "java.exe" if os.name == "nt" else "java"
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def pick_feature(required):
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"""Ближайшая LTS-версия не ниже требуемой."""
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for f in LTS:
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if f >= required:
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return f
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return LTS[-1]
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def runtime_dir(runtime_root, feature):
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return os.path.join(runtime_root, "java-" + str(feature))
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def find_runtime_java(runtime_root, feature):
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"""Путь к bin/java установленной рантайм-Java, "" — не найдено."""
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base = runtime_dir(runtime_root, feature)
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exe = _exe()
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direct = os.path.join(base, "bin", exe)
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if os.path.isfile(direct):
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return direct
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# архив Adoptium распаковывается во вложенную папку (jdk-21.0.x+y)
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try:
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for root, dirs, files in os.walk(base):
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if root.count(os.sep) - base.count(os.sep) >= 3:
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dirs[:] = []
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continue
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if exe in files and os.path.basename(root) == "bin":
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return os.path.join(root, exe)
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except OSError:
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pass
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return ""
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def find_installed(runtime_root, required):
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"""Лучшая уже скачанная Java не ниже required (путь, "" — нет).
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Название каталога (java-21) хранит major-версию — не запускаем
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`java -version` повторно.
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"""
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best, best_major = "", 999
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try:
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names = os.listdir(runtime_root)
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except OSError:
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return ""
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for name in names:
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if not name.startswith("java-"):
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continue
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try:
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major = int(name.split("-", 1)[1])
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except ValueError:
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continue
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if not (required <= major < best_major):
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continue
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exe = find_runtime_java(runtime_root, major)
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if exe:
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best, best_major = exe, major
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return best
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def ensure_java(required, runtime_root, progress=None, log=None, cancel=None):
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"""Возвращает путь к Java не ниже required; при необходимости скачивает.
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progress(done_bytes, total_bytes|None) — прогресс скачивания архива.
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"""
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feature = pick_feature(required)
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exe = find_runtime_java(runtime_root, feature)
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if exe:
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return exe
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url = API.format(feature=feature, platform=_platform(), arch=_arch())
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dest = runtime_dir(runtime_root, feature)
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os.makedirs(dest, exist_ok=True)
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archive = os.path.join(runtime_root, "java-%s.download" % feature)
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if os.path.exists(archive):
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try:
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os.remove(archive)
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except OSError:
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pass
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if log:
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log(T("Скачивание Java {v} (Adoptium)...").format(v=feature))
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total = http.head_size(url)
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try:
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http.download_file(url, archive, size=total, progress=progress,
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cancel=cancel)
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if log:
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log(T("Распаковка Java..."))
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_extract(archive, dest)
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finally:
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try:
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os.remove(archive)
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except OSError:
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pass
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exe = find_runtime_java(runtime_root, feature)
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if not exe:
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raise RuntimeError(T("Не удалось распаковать Java"))
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if log:
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log(T("Java {v} установлена").format(v=feature), "ok")
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return exe
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def _safe_join(base, name):
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"""Путь внутри base; None — попытка выйти за пределы (path traversal)."""
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parts = [p for p in name.replace("\\", "/").split("/")
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if p not in ("", ".", "..")]
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if not parts:
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return None
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return os.path.join(base, *parts)
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def _extract(archive, dest):
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# формат определяем по сигнатуре: имя файла служебное (java-XX.download)
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with open(archive, "rb") as f:
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magic = f.read(4)
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if magic[:2] == b"PK": # ZIP
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with zipfile.ZipFile(archive) as z:
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for info in z.infolist():
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target = _safe_join(dest, info.filename)
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if target is None:
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continue
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if info.is_dir():
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os.makedirs(target, exist_ok=True)
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continue
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os.makedirs(os.path.dirname(target), exist_ok=True)
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with z.open(info) as src, open(target, "wb") as dst:
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shutil.copyfileobj(src, dst)
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else:
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with tarfile.open(archive, "r:*") as t:
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for m in t.getmembers():
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if not (m.isfile() or m.isdir()):
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continue
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target = _safe_join(dest, m.name)
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if target is None:
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continue
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if m.isdir():
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os.makedirs(target, exist_ok=True)
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continue
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os.makedirs(os.path.dirname(target), exist_ok=True)
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src = t.extractfile(m)
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if src is None:
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continue
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with src, open(target, "wb") as dst:
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shutil.copyfileobj(src, dst)
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# права на исполнение для содержимого bin/ (linux/mac)
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if os.name != "nt":
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for root, dirs, files in os.walk(dest):
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if os.path.basename(root) != "bin":
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continue
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for f in files:
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try:
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os.chmod(os.path.join(root, f), 0o755)
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except OSError:
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pass
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