Gecko [ oric.aiou.edu.pk ]

Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
schemas	[ DIR ]	drwxr-xr-x
__init__.py	40 B	-rw-r--r--
cc_ansible.py	7.68 KB	-rw-r--r--
cc_apk_configure.py	4.23 KB	-rw-r--r--
cc_apt_configure.py	38.08 KB	-rw-r--r--
cc_apt_pipelining.py	1.85 KB	-rw-r--r--
cc_bootcmd.py	1.65 KB	-rw-r--r--
cc_byobu.py	2.73 KB	-rw-r--r--
cc_ca_certs.py	8.67 KB	-rw-r--r--
cc_chef.py	12.19 KB	-rw-r--r--
cc_disable_ec2_metadata.py	1.6 KB	-rw-r--r--
cc_disk_setup.py	29.61 KB	-rw-r--r--
cc_fan.py	1.95 KB	-rw-r--r--
cc_final_message.py	2.51 KB	-rw-r--r--
cc_growpart.py	18.37 KB	-rw-r--r--
cc_grub_dpkg.py	5.39 KB	-rw-r--r--
cc_install_hotplug.py	3.19 KB	-rw-r--r--
cc_keyboard.py	1.49 KB	-rw-r--r--
cc_keys_to_console.py	2.09 KB	-rw-r--r--
cc_landscape.py	3.06 KB	-rw-r--r--
cc_locale.py	1.19 KB	-rw-r--r--
cc_lxd.py	13.44 KB	-rw-r--r--
cc_mcollective.py	4.11 KB	-rw-r--r--
cc_mounts.py	18.16 KB	-rw-r--r--
cc_ntp.py	18.97 KB	-rw-r--r--
cc_package_update_upgrade_inst...	3.79 KB	-rw-r--r--
cc_phone_home.py	3.75 KB	-rw-r--r--
cc_power_state_change.py	5.92 KB	-rw-r--r--
cc_puppet.py	10.72 KB	-rw-r--r--
cc_reset_rmc.py	4.33 KB	-rw-r--r--
cc_resizefs.py	10.63 KB	-rw-r--r--
cc_resolv_conf.py	3.13 KB	-rw-r--r--
cc_rh_subscription.py	15.21 KB	-rw-r--r--
cc_rsyslog.py	11.55 KB	-rw-r--r--
cc_runcmd.py	1.6 KB	-rw-r--r--
cc_salt_minion.py	3.96 KB	-rw-r--r--
cc_scripts_per_boot.py	1.27 KB	-rw-r--r--
cc_scripts_per_instance.py	1.26 KB	-rw-r--r--
cc_scripts_per_once.py	1.24 KB	-rw-r--r--
cc_scripts_user.py	1.25 KB	-rw-r--r--
cc_scripts_vendor.py	1.26 KB	-rw-r--r--
cc_seed_random.py	3 KB	-rw-r--r--
cc_set_hostname.py	3.4 KB	-rw-r--r--
cc_set_passwords.py	9.36 KB	-rw-r--r--
cc_snap.py	3.32 KB	-rw-r--r--
cc_spacewalk.py	2.64 KB	-rw-r--r--
cc_ssh.py	11 KB	-rw-r--r--
cc_ssh_authkey_fingerprints.py	3.76 KB	-rw-r--r--
cc_ssh_import_id.py	5.43 KB	-rw-r--r--
cc_timezone.py	1.14 KB	-rw-r--r--
cc_ubuntu_autoinstall.py	2.95 KB	-rw-r--r--
cc_ubuntu_drivers.py	4.08 KB	-rw-r--r--
cc_ubuntu_pro.py	13.65 KB	-rw-r--r--
cc_update_etc_hosts.py	2.46 KB	-rw-r--r--
cc_update_hostname.py	2.18 KB	-rw-r--r--
cc_users_groups.py	2.86 KB	-rw-r--r--
cc_wireguard.py	6.67 KB	-rw-r--r--
cc_write_files.py	6 KB	-rw-r--r--
cc_write_files_deferred.py	1.28 KB	-rw-r--r--
cc_yum_add_repo.py	4.53 KB	-rw-r--r--
cc_zypper_add_repo.py	4.93 KB	-rw-r--r--
modules.py	13.23 KB	-rw-r--r--
schema.py	50.26 KB	-rw-r--r--

Code Editor : cc_write_files.py

# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

"""Write Files: write arbitrary files"""

import base64
import logging
import os
from typing import Optional

from cloudinit import url_helper, util
from cloudinit.cloud import Cloud
from cloudinit.config import Config
from cloudinit.config.schema import MetaSchema
from cloudinit.settings import PER_INSTANCE

DEFAULT_PERMS = 0o644
DEFAULT_DEFER = False
TEXT_PLAIN_ENC = "text/plain"

LOG = logging.getLogger(__name__)

meta: MetaSchema = {
    "id": "cc_write_files",
    "distros": ["all"],
    "frequency": PER_INSTANCE,
    "activate_by_schema_keys": ["write_files"],
}

def handle(name: str, cfg: Config, cloud: Cloud, args: list) -> None:
    file_list = cfg.get("write_files", [])
    filtered_files = [
        f
        for f in file_list
        if not util.get_cfg_option_bool(f, "defer", DEFAULT_DEFER)
    ]
    if not filtered_files:
        LOG.debug(
            "Skipping module named %s,"
            " no/empty 'write_files' key in configuration",
            name,
        )
        return
    ssl_details = util.fetch_ssl_details(cloud.paths)
    write_files(name, filtered_files, cloud.distro.default_owner, ssl_details)

def canonicalize_extraction(encoding_type):
    if not encoding_type:
        encoding_type = ""
    encoding_type = encoding_type.lower().strip()
    if encoding_type in ["gz", "gzip"]:
        return ["application/x-gzip"]
    if encoding_type in ["gz+base64", "gzip+base64", "gz+b64", "gzip+b64"]:
        return ["application/base64", "application/x-gzip"]
    # Yaml already encodes binary data as base64 if it is given to the
    # yaml file as binary, so those will be automatically decoded for you.
    # But the above b64 is just for people that are more 'comfortable'
    # specifying it manually (which might be a possibility)
    if encoding_type in ["b64", "base64"]:
        return ["application/base64"]
    if encoding_type == TEXT_PLAIN_ENC:
        return [TEXT_PLAIN_ENC]
    if encoding_type:
        LOG.warning(
            "Unknown encoding type %s, assuming %s",
            encoding_type,
            TEXT_PLAIN_ENC,
        )
    return [TEXT_PLAIN_ENC]

def write_files(name, files, owner: str, ssl_details: Optional[dict] = None):
    if not files:
        return

for i, f_info in enumerate(files):
        path = f_info.get("path")
        if not path:
            LOG.warning(
                "No path provided to write for entry %s in module %s",
                i + 1,
                name,
            )
            continue
        path = os.path.abspath(path)
        # Read content from provided URL, if any, or decode from inline
        contents = read_url_or_decode(
            f_info.get("source", None),
            ssl_details,
            f_info.get("content", None),
            f_info.get("encoding", None),
        )
        if contents is None:
            LOG.warning(
                "No content could be loaded for entry %s in module %s;"
                " skipping",
                i + 1,
                name,
            )
            continue
        # Only create the file if content exists. This will not happen, for
        # example, if the URL fails and no inline content was provided
        (u, g) = util.extract_usergroup(f_info.get("owner", owner))
        perms = decode_perms(f_info.get("permissions"), DEFAULT_PERMS)
        omode = "ab" if util.get_cfg_option_bool(f_info, "append") else "wb"
        util.write_file(
            path, contents, omode=omode, mode=perms, user=u, group=g
        )
        util.chownbyname(path, u, g)

def decode_perms(perm, default):
    if perm is None:
        return default
    try:
        if isinstance(perm, (int, float)):
            # Just 'downcast' it (if a float)
            return int(perm)
        else:
            # Force to string and try octal conversion
            return int(str(perm), 8)
    except (TypeError, ValueError):
        reps = []
        for r in (perm, default):
            try:
                reps.append("%o" % r)
            except TypeError:
                reps.append("%r" % r)
        LOG.warning("Undecodable permissions %s, returning default %s", *reps)
        return default

def read_url_or_decode(source, ssl_details, content, encoding):
    url = None if source is None else source.get("uri", None)
    use_url = bool(url)
    # Special case: empty URL and content. Write a blank file
    if content is None and not use_url:
        return ""
    # Fetch file content from source URL, if provided
    result = None
    if use_url:
        try:
            # NOTE: These retry parameters are arbitrarily chosen defaults.
            # They have no significance, and may be changed if appropriate
            result = url_helper.read_file_or_url(
                url,
                headers=source.get("headers", None),
                retries=3,
                sec_between=3,
                ssl_details=ssl_details,
            ).contents
        except Exception:
            util.logexc(
                LOG,
                'Failed to retrieve contents from source "%s"; falling back to'
                ' data from "contents" key',
                url,
            )
            use_url = False
    # If inline content is provided, and URL is not provided or is
    # inaccessible, parse the former
    if content is not None and not use_url:
        # NOTE: This is not simply an "else"! Notice that `use_url` can change
        # in the previous "if" block
        extractions = canonicalize_extraction(encoding)
        result = extract_contents(content, extractions)
    return result

def extract_contents(contents, extraction_types):
    result = contents
    for t in extraction_types:
        if t == "application/x-gzip":
            result = util.decomp_gzip(result, quiet=False, decode=False)
        elif t == "application/base64":
            result = base64.b64decode(result)
        elif t == TEXT_PLAIN_ENC:
            pass
    return result

${this.title}

Code Editor : cc_write_files.py