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prd-web-01.centraldc.gr

✎ EDIT FILE

EDITING: build-crypto-policies.py

#!/usr/bin/python3

# SPDX-License-Identifier: LGPL-2.1-or-later

import argparse
import difflib
import os
import sys
import warnings

import cryptopolicies
import policygenerators

RELOAD_CMD_NAME = 'reload-cmds.sh'

warnings.formatwarning = lambda msg, category, *_unused_a, **_unused_kwa: \
    f'{category.__name__}: {str(msg)[:1].upper() + str(msg)[1:]}\n'

def eprint(*args, **kwargs):
    print(*args, file=sys.stderr, **kwargs)

def parse_args():
    """Parse the command line"""
    parser = argparse.ArgumentParser(allow_abbrev=False)
    parser.add_argument('--flat', action='store_true',
                        help='put all the generated files '
                             'in a single directory')
    parser.add_argument('--test', action='store_true',
                        help='compare the generated config file '
                             'with the existing one')
    parser.add_argument('--policy', type=str, metavar='POLICY',
                        help='generate the specified policy only')
    parser.add_argument('--reloadcmds', action='store_true',
                        help='also save reload cmds '
                             'into reload-cmds.sh script in output directory')
    parser.add_argument('--strict', action='store_true',
                        help='fail on warnings')
    parser.add_argument('policydir',
                        help='a directory with base policy definition files '
                             '(*.pol)')
    parser.add_argument('outputdir',
                        help='a target directory with generated config files')
    return parser.parse_args()

def save_config(cmdline, policy_name, config_name, config):
    if cmdline.flat:
        path = os.path.join(cmdline.outputdir,
                            f'{policy_name}-{config_name}.txt')
    else:
        dirpath = os.path.join(cmdline.outputdir, policy_name)
        if not os.path.isdir(dirpath):
            try:
                os.mkdir(dirpath)
            except OSError:
                eprint(f'Cannot create directory for policy {policy_name}')
                return False
        path = os.path.join(dirpath, config_name + '.txt')

if cmdline.test:
        try:
            with open(path, encoding='utf-8') as f:
                old_config = f.read()
            if old_config != config:
                eprint(f'Config for {config_name} for policy {policy_name} '
                       'differs from the existing one:')

def lines(s):
                    return [l + '\n' for l in s.split('\n')]
                diff = difflib.unified_diff(lines(old_config), lines(config),
                                            fromfile=path,
                                            tofile=path + '.new')
                sys.stderr.writelines(diff)
                return False
            return True
        except FileNotFoundError:
            pass
        except OSError:
            eprint(f'Error reading generated file {path}')
            return False

print(f'Saving config for {config_name} for policy {policy_name}')
    with open(path, mode='w', encoding='utf-8') as f:
        f.write(config)
    print()
    return True

def build_policy(cmdline, policy_name, subpolicy_names=None):
    err = 0
    if subpolicy_names is None:
        subpolicy_names = []

try:
        ucp = cryptopolicies.UnscopedCryptoPolicy(policy_name,
                                                  *subpolicy_names,
                                                  policydir=cmdline.policydir)
    except ValueError as e:  # TODO: catch specific thing
        eprint('Error: ' + str(e))
        return 1

generators = [g for g in dir(policygenerators) if 'Generator' in g]

for g in generators:
        cls = policygenerators.__dict__[g]
        gen = cls()
        config = gen.generate_config(ucp)

if policy_name == 'EMPTY' or gen.test_config(config):
            try:
                name = ':'.join([policy_name, *subpolicy_names])
                if not save_config(cmdline, name, gen.CONFIG_NAME, config):
                    err = 5
            except OSError:
                eprint('Error saving config for ' + gen.CONFIG_NAME)
                eprint('Keeping original configuration')
                err = 4
        else:
            eprint('Error testing config for ' + gen.CONFIG_NAME)
            err = 3
    return err

def save_reload_cmds(cmdline):
    err = 0

generators = [g for g in dir(policygenerators) if 'Generator' in g]

path = os.path.join(cmdline.outputdir, RELOAD_CMD_NAME)
    try:
        with open(path, mode='w', encoding='utf-8') as f:
            for g in generators:
                cls = policygenerators.__dict__[g]
                f.write(cls.RELOAD_CMD)
    except OSError:
        eprint('Error saving reload cmds')
        err = 6
    return err

def main():
    """The actual command implementation"""
    cmdline = parse_args()
    err = 0

if cmdline.strict:
        warnings.filterwarnings("error")

if cmdline.policy:
        names = [n for n in cmdline.policy.upper().split(':') if n]
        policy_name, *subpolicy_names = names
        err = build_policy(cmdline, policy_name, subpolicy_names)
    else:
        with os.scandir(cmdline.policydir) as sd:
            for i in sd:
                if not i.name.startswith('.'):
                    if i.is_file(follow_symlinks=False):
                        policy_name, ext = os.path.splitext(i.name)
                        if ext == '.pol':
                            err = build_policy(cmdline, policy_name)
                            if err:
                                break

if not err and cmdline.reloadcmds:
        err = save_reload_cmds(cmdline)

sys.exit(err)

# Entry point
if __name__ == "__main__":
    main()

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📁 __pycache__/	DIR	—	2026-04-06 07:15
📁 cryptopolicies/	DIR	—	2026-04-06 07:15
📁 policygenerators/	DIR	—	2026-04-06 07:15
📄 build-crypto-policies.py	PY	5.8 KB	2025-09-04 17:56	EDIT
📄 update-crypto-policies.py	PY	16.9 KB	2025-09-04 17:56	EDIT

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