T5195: vyos.util -> vyos.utils package refactoring (#2093)

* T5195: move run, cmd, call, rc_cmd helper to vyos.utils.process

* T5195: use read_file and write_file implementation from vyos.utils.file

Changed code automatically using:

find . -type f -not -path '*/\.*' -exec sed -i 's/^from vyos.util import read_file$/from vyos.utils.file import read_file/g' {} +
find . -type f -not -path '*/\.*' -exec sed -i 's/^from vyos.util import write_file$/from vyos.utils.file import write_file/g' {} +

* T5195: move chmod* helpers to vyos.utils.permission

* T5195: use colon_separated_to_dict from vyos.utils.dict

* T5195: move is_systemd_service_* to vyos.utils.process

* T5195: fix boot issues with missing imports

* T5195: move dict_search_* helpers to vyos.utils.dict

* T5195: move network helpers to vyos.utils.network

* T5195: move commit_* helpers to vyos.utils.commit

* T5195: move user I/O helpers to vyos.utils.io

1 files changed, 63 insertions, 0 deletions

diff --git a/python/vyos/utils/permission.py b/python/vyos/utils/permission.py
new file mode 100644
index 000000000..8c2d72b83
--- /dev/null
+++ b/python/vyos/utils/permission.py
@@ -0,0 +1,63 @@
+# Copyright 2023 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+def chown(path, user, group):
+    """ change file/directory owner """
+    from pwd import getpwnam
+    from grp import getgrnam
+
+    if user is None or group is None:
+        return False
+
+    # path may also be an open file descriptor
+    if not isinstance(path, int) and not os.path.exists(path):
+        return False
+
+    uid = getpwnam(user).pw_uid
+    gid = getgrnam(group).gr_gid
+    os.chown(path, uid, gid)
+    return True
+
+def chmod(path, bitmask):
+    # path may also be an open file descriptor
+    if not isinstance(path, int) and not os.path.exists(path):
+        return
+    if bitmask is None:
+        return
+    os.chmod(path, bitmask)
+
+def chmod_600(path):
+    """ make file only read/writable by owner """
+    from stat import S_IRUSR, S_IWUSR
+
+    bitmask = S_IRUSR | S_IWUSR
+    chmod(path, bitmask)
+
+def chmod_750(path):
+    """ make file/directory only executable to user and group """
+    from stat import S_IRUSR, S_IWUSR, S_IXUSR, S_IRGRP, S_IXGRP
+
+    bitmask = S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP
+    chmod(path, bitmask)
+
+def chmod_755(path):
+    """ make file executable by all """
+    from stat import S_IRUSR, S_IWUSR, S_IXUSR, S_IRGRP, S_IXGRP, S_IROTH, S_IXOTH
+
+    bitmask = S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP | \
+              S_IROTH | S_IXOTH
+    chmod(path, bitmask)