keyringctl: Derive output dir from file and allow override

keyringctl:
Change `convert_certificates()` to use a more descriptive
`name_override` parameter in its signature to allow the overriding of
the username directory name into which key material is persisted.
Distinguish between the per-username directory and the eventual key
material directory. Instead of the key directory return the username
directory.
Change the `persist*` functions to use the `key_dir` instead of the
`root_dir` terminology as well.

Change `convert()` to optionally allow a `name_override` as well and use
that in the calls to `convert_certificate()`. Make the moving of files
more robust, by at least allowing to move the per-key directories for a
username, if the username target directory exists already. NOTE: This
needs expansion for the use-case where existing files should be
updated/extended by new files.

Add an additional argument to the 'convert' argparse parser to allow
users to override the target username directory name.
This commit is contained in:
David Runge 2021-10-03 21:41:09 +02:00 committed by Levente Polyak
parent 40761f44a7
commit a5be572136
No known key found for this signature in database
GPG Key ID: FC1B547C8D8172C8

View File

@ -76,7 +76,7 @@ def system(cmd: List[str], exit_on_error: bool = True) -> str:
raise e
def convert_certificate(working_dir: Path, certificate: Path, owner: str) -> Path:
def convert_certificate(working_dir: Path, certificate: Path, name_override: Optional[str] = None) -> Path:
certificate_fingerprint: Optional[str] = None
pubkey: Optional[Path] = None
direct_sigs: Dict[str, Dict[str, List[Path]]] = {}
@ -89,6 +89,7 @@ def convert_certificate(working_dir: Path, certificate: Path, owner: str) -> Pat
subkey_binding_sig: Dict[str, Path] = {}
certifications: Dict[str, List[Path]] = defaultdict(list)
revocations: Dict[str, List[Path]] = defaultdict(list)
username = name_override or certificate.name.split(".")[0]
def add_packet_to_direct_sigs(
direct_sigs: Dict[str, Dict[str, List[Path]]],
@ -218,13 +219,14 @@ def convert_certificate(working_dir: Path, certificate: Path, owner: str) -> Pat
if not pubkey:
raise Exception('missing certificate public-key')
root_dir = (working_dir / certificate_fingerprint)
root_dir.mkdir()
user_dir = (working_dir / username)
key_dir = (user_dir / certificate_fingerprint)
key_dir.mkdir(parents=True)
persist_basic_key(
certificate_fingerprint=certificate_fingerprint,
pubkey=pubkey,
root_dir=root_dir,
key_dir=key_dir,
subkey=subkey,
subkey_binding_sig=subkey_binding_sig,
uid_binding_sig=uid_binding_sig,
@ -234,20 +236,20 @@ def convert_certificate(working_dir: Path, certificate: Path, owner: str) -> Pat
persist_direct_sigs(
direct_sigs=direct_sigs,
pubkey=pubkey,
root_dir=root_dir,
key_dir=key_dir,
)
persist_direct_sigs(
direct_sigs=direct_revocations,
pubkey=pubkey,
root_dir=root_dir,
sig_type="revocations",
key_dir=key_dir,
sig_type="revocation",
)
persist_certifications(
certifications=certifications,
pubkey=pubkey,
root_dir=root_dir,
key_dir=key_dir,
uid_binding_sig=uid_binding_sig,
uids=uids,
)
@ -255,18 +257,18 @@ def convert_certificate(working_dir: Path, certificate: Path, owner: str) -> Pat
persist_revocations(
pubkey=pubkey,
revocations=revocations,
root_dir=root_dir,
key_dir=key_dir,
uid_binding_sig=uid_binding_sig,
uids=uids,
)
return root_dir
return user_dir
def persist_basic_key(
certificate_fingerprint: str,
pubkey: Path,
root_dir: Path,
key_dir: Path,
subkey: Dict[str, Path],
subkey_binding_sig: Dict[str, Path],
uid_binding_sig: Dict[str, Path],
@ -276,7 +278,7 @@ def persist_basic_key(
The basic key material consists of the root key's public key, any PublicSubkeys and their SubkeyBindings, all User
IDs and the per User ID PositiveCertifications.
The file is written to root_dir and is named after the root key's certificate fingerprint.
The file is written to key_dir and is named after the root key's certificate fingerprint.
Parameters
----------
@ -284,7 +286,7 @@ def persist_basic_key(
The unique fingerprint of the public key
pubkey: Path
The path to the public key of the root key
root_dir: Path
key_dir: Path
The root directory below which the basic key material is persisted
subkey: Dict[str, Path]
The PublicSubkeys of a key
@ -302,13 +304,13 @@ def persist_basic_key(
for key in subkey_binding_sig.keys():
packets.extend([subkey[key], subkey_binding_sig[key]])
packet_join(packets, root_dir / f'{certificate_fingerprint}.asc')
packet_join(packets, key_dir / f'{certificate_fingerprint}.asc')
def persist_direct_sigs(
direct_sigs: Dict[str, Dict[str, List[Path]]],
pubkey: Path,
root_dir: Path,
key_dir: Path,
sig_type: str = "certification",
) -> None:
"""Persist the signatures directly on a root key (such as DirectKeys or *Certifications without a User ID) to
@ -320,7 +322,7 @@ def persist_direct_sigs(
The certifications to write to file
pubkey: Path
The path to the public key of the root key
root_dir: Path
key_dir: Path
The root directory below which the Directkeys are persisted
sig_type: str
The type of direct certification to persist (defaults to 'certification'). This influences the directory name
@ -328,7 +330,7 @@ def persist_direct_sigs(
for key, current_certifications in direct_sigs.items():
for issuer, certifications in current_certifications.items():
direct_key_dir = root_dir / sig_type
direct_key_dir = key_dir / sig_type
direct_key_dir.mkdir(parents=True, exist_ok=True)
packets = [pubkey] + certifications
output_file = direct_key_dir / f'{issuer}.asc'
@ -339,7 +341,7 @@ def persist_direct_sigs(
def persist_certifications(
certifications: Dict[str, List[Path]],
pubkey: Path,
root_dir: Path,
key_dir: Path,
uid_binding_sig: Dict[str, Path],
uids: Dict[str, Path],
) -> None:
@ -347,7 +349,7 @@ def persist_certifications(
The certifications include all CasualCertifications, GenericCertifications, PersonaCertifications and
PositiveCertifications for all User IDs of the given root key.
All certifications are persisted in per User ID certification directories below root_dir.
All certifications are persisted in per User ID certification directories below key_dir.
Parameters
----------
@ -355,7 +357,7 @@ def persist_certifications(
The certifications to write to file
pubkey: Path
The path to the public key of the root key
root_dir: Path
key_dir: Path
The root directory below which certifications are persisted
uid_binding_sig: Dict[str, Path]
The PositiveCertifications of a User ID and Public-Key packet
@ -365,7 +367,7 @@ def persist_certifications(
for key, current_certifications in certifications.items():
for certification in current_certifications:
certification_dir = root_dir / key / 'certification'
certification_dir = key_dir / key / 'certification'
certification_dir.mkdir(parents=True, exist_ok=True)
issuer = packet_dump_field(certification, 'Issuer')
@ -378,14 +380,14 @@ def persist_certifications(
def persist_revocations(
pubkey: Path,
revocations: Dict[str, List[Path]],
root_dir: Path,
key_dir: Path,
uid_binding_sig: Dict[str, Path],
uids: Dict[str, Path],
) -> None:
"""Persist the revocations of a root key to file(s)
The revocations include all CertificationRevocations for all User IDs of the given root key.
All revocations are persisted in per User ID 'revocation' directories below root_dir.
All revocations are persisted in per User ID 'revocation' directories below key_dir.
Parameters
----------
@ -393,7 +395,7 @@ def persist_revocations(
The path to the public key of the root key
revocations: Dict[str, List[Path]]
The revocations to write to file
root_dir: Path
key_dir: Path
The root directory below which revocations will be persisted
uid_binding_sig: Dict[str, Path]
The PositiveCertifications of a User ID and Public-Key packet
@ -403,7 +405,7 @@ def persist_revocations(
for key, current_revocations in revocations.items():
for revocation in current_revocations:
revocation_dir = root_dir / key / 'revocation'
revocation_dir = key_dir / key / 'revocation'
revocation_dir.mkdir(parents=True, exist_ok=True)
issuer = packet_dump_field(revocation, 'Issuer')
@ -452,13 +454,22 @@ def simplify_user_id(user_id: str) -> str:
return user_id
def convert(working_dir: Path, source: Path, target_dir: Optional[Path] = None) -> Path:
def convert(
working_dir: Path,
source: Path,
target_dir: Optional[Path] = None,
name_override: Optional[str] = None,
) -> Path:
directories: List[Path] = []
if source.is_dir():
for key in source.iterdir():
directories.append(convert_certificate(working_dir, key, 'anthraxx'))
directories.append(
convert_certificate(working_dir=working_dir, certificate=key, name_override=name_override)
)
else:
directories.append(convert_certificate(working_dir, source, 'anthraxx'))
directories.append(
convert_certificate(working_dir=working_dir, certificate=source, name_override=name_override)
)
if target_dir:
target_dir.mkdir(parents=True, exist_ok=True)
@ -468,6 +479,10 @@ def convert(working_dir: Path, source: Path, target_dir: Optional[Path] = None)
for path in directories:
target_dir.mkdir(exist_ok=True)
if (target_dir / path.name).exists():
for key_dir in path.iterdir():
move(key_dir, target_dir / path.name)
else:
move(path, target_dir)
return target_dir
@ -494,6 +509,12 @@ if __name__ == '__main__':
)
convert_parser.add_argument('source', type=absolute_path, help='File or directory to convert')
convert_parser.add_argument('--target', type=absolute_path, help='target directory')
convert_parser.add_argument(
'--name',
type=str,
default=None,
help='override the username to use (only useful when targetting a single file)',
)
import_parser = subcommands.add_parser('import')
import_parser.add_argument('source', type=absolute_path, help='File or directory')