diff options
| -rwxr-xr-x | inspect.py | 21 | ||||
| -rw-r--r-- | tools/__init__.py | 33 | ||||
| -rw-r--r-- | tools/inspect_apps.py | 99 |
3 files changed, 131 insertions, 22 deletions
@@ -5,14 +5,19 @@ import os import re import sys -from tools import libvslvm, lklfuse, nbdfuse, unmount, rmdir -from tools.inspect_apps import list_applications_rpm, list_applications_windows +from tools import libvslvm, lklfuse, nbdfuse, subfiles, unmount, rmdir +from tools.inspect_apps import ( + list_applications_deb, + list_applications_rpm, + list_applications_windows +) from tools.inspect_os import get_linux_os_info, get_windows_os_info from tools.pyparted import list_partitions fmt = "{asctime}, {name}:{lineno}:{funcName}(), {levelname}, {message}" logging.basicConfig(level=logging.DEBUG, format=fmt, style="{") +DEB = re.compile(r"^(Debian|Ubuntu|Linux\sMint|LMDE).*$") RPM = re.compile(r"^(CentOS|AlmaLinux|Scientific|Rocky|Oracle|openSUSE|Fedora).*$") # noqa WIN = re.compile(r"^(Microsoft|Windows).*$") @@ -36,17 +41,15 @@ def main(vmdk_path): lvm_mp = libvslvm.mount(nbd, part["offset"]) if not lvm_mp: continue - for vol in os.listdir(lvm_mp): + for vol in subfiles(lvm_mp): vol_path = os.path.join(lvm_mp, vol) vol_parts = list_partitions(vol_path) if not vol_parts: continue - mp = lklfuse.mount(vol_path, vol_parts[0]["type"]) - if mp: + if mp := lklfuse.mount(vol_path, vol_parts[0]["type"]): fs_mps.append((mp, parts[0]["type"])) else: - mp = lklfuse.mount(nbd, part["type"], part["nr"]) - if mp: + if mp := lklfuse.mount(nbd, part["type"], part["nr"]): fs_mps.append((mp, part["type"])) os_info = {} @@ -60,7 +63,9 @@ def main(vmdk_path): break for fspath, _ in fs_mps: - if RPM.match(os_info["name"]): + if DEB.match(os_info["name"]): + apps = list_applications_deb(fspath) + elif RPM.match(os_info["name"]): apps = list_applications_rpm(fspath) elif WIN.match(os_info["name"]): apps = list_applications_windows(fspath) diff --git a/tools/__init__.py b/tools/__init__.py index e25ef6f..d97a80a 100644 --- a/tools/__init__.py +++ b/tools/__init__.py @@ -4,7 +4,12 @@ import os from functools import wraps from subprocess import run -__all__ = ["unmount", "rmdir"] +__all__ = [ + "unmount", + "rmdir", + "subdirs", + "subfiles" +] L = logging.getLogger(__name__) @@ -71,3 +76,29 @@ def rmdir(path): return False return True + + +@log +def subdirs(path): + """Yield directory names under given path using os.scandir. + + See also: + https://docs.python.org/3/library/os.html#os.scandir + """ + with os.scandir(path) as it: + for entry in it: + if not entry.name.startswith(".") and entry.is_dir(): + yield entry.name + + +@log +def subfiles(path): + """Yield file names under given path using os.scandir. + + See also: + https://docs.python.org/3/library/os.html#os.scandir + """ + with os.scandir(path) as it: + for entry in it: + if not entry.name.startswith(".") and entry.is_file(): + yield entry.name diff --git a/tools/inspect_apps.py b/tools/inspect_apps.py index 014625c..94a8768 100644 --- a/tools/inspect_apps.py +++ b/tools/inspect_apps.py @@ -2,9 +2,10 @@ import logging import os import tempfile -from . import log +from . import log, subdirs __all__ = [ + "list_applications_deb", "list_applications_rpm", "list_applications_windows" ] @@ -31,6 +32,78 @@ except ModuleNotFoundError: @log +def list_applications_deb(path): + """Find all packages installed on a debian-based linux distribution. + + See also: + https://man7.org/linux/man-pages/man1/dpkg.1.html + + Args: + path (str): Path to the mounted filesystem. + + Returns: + List of packages. For example: + [{'name': 'adduser', 'version': '3.118'}, ...] + """ + dpkg_db = None + + locations = [ + "var/lib/dpkg/status", + "lib/dpkg/status" # separated /var partition + ] + + for location in locations: + db = os.path.join(path, location) + if os.path.exists(db): + dpkg_db = db + break + + # Debian uses subvol=@rootfs for root filesystem for btrfs. + # Therefore, under Debian 11.* looks like this: /@rootfs/var/lib/dpkg + if dpkg_db is None: + for dir in subdirs(path): + new_path = os.path.join(path, dir) + for location in locations: + db = os.path.join(new_path, location) + if os.path.exists(db): + dpkg_db = db + break + if dpkg_db is not None: + break + + if dpkg_db is None: + L.debug("dpkg database not found") + return [] + + pkgs = [] + with open(dpkg_db) as f: + name = version = "" + installed = False + count = 0 + for line in f: + if count >= 10: + break + line = line.strip() + if not line: + if name and version and installed: + pkgs.append({ + "name": name, + "version": version + }) + count += 1 + name = version = "" + installed = False + elif line.startswith("Package:"): + name = line[9:] + elif line.startswith("Status:"): + installed = "installed" in line[8:].split() + elif line.startswith("Version:"): + version = line[9:] + + return pkgs + + +@log def list_applications_rpm(path): """Find all packages installed on a rpm-based linux distribution. @@ -75,16 +148,16 @@ def list_applications_rpm(path): L.error("failed to open RPM database: %r", e) return [] - ret = [] + pkgs = [] for h in dbMatch: - ret.append({ + pkgs.append({ "name": h["name"], "version": h["version"] }) rpm.delMacro("_dbpath") - return ret + return pkgs @log @@ -121,7 +194,7 @@ def list_applications_windows(path): L.error("failed to open registry file %s: %r", software, e) return [] - ret = [] + apps = [] # native applications hive_path = "Microsoft\\Windows\\CurrentVersion\\Uninstall" @@ -129,9 +202,9 @@ def list_applications_windows(path): key = registry.open(hive_path) except Exception as e: L.error("%s not found in %s: %r", hive_path, software, e) - return ret + return apps if apps_native := _list_applications_windows_from_key(key): - ret.extend(apps_native) + apps.extend(apps_native) # 32-bit applications running on WOW64 emulator # see also: http://support.microsoft.com/kb/896459 @@ -140,11 +213,11 @@ def list_applications_windows(path): key = registry.open(hive_path) except Exception as e: L.error("%s not found in %s: %r", hive_path, software, e) - return ret + return apps if apps_emulator := _list_applications_windows_from_key(key): - ret.extend(apps_emulator) + apps.extend(apps_emulator) - return ret + return apps @log @@ -160,7 +233,7 @@ def _list_applications_windows_from_key(key): Returns: List of applications. """ - ret = [] + apps = [] for k in key.subkeys(): # name = k.name() # name does not say much, so take the display name @@ -172,9 +245,9 @@ def _list_applications_windows_from_key(key): version = v.value() # ignore applications with no display name if name and version: - ret.append({ + apps.append({ "name": name, "version": version }) - return ret + return apps |