# Copyright (C) 2024 The Software Heritage developers
# See the AUTHORS file at the top-level directory of this distribution
# License: GNU General Public License version 3, or any later version
# See top-level LICENSE file for more information
from typing import TYPE_CHECKING, Any, Dict, Iterator, List, Optional, TextIO
import click
from ...cli import storage as storage_cli_group
if TYPE_CHECKING:
from swh.model.swhids import ExtendedSWHID
from .db import MaskedState, MaskingRequest
[docs]
def storage_config_iter(storage_config: Dict[str, Any]) -> Iterator[Dict[str, Any]]:
yield storage_config
if storage_config["cls"] == "pipeline":
for step in storage_config["steps"]:
yield step
elif "storage" in storage_config:
yield storage_config["storage"]
@storage_cli_group.group(name="masking")
@click.pass_context
def masking_cli_group(ctx: click.Context) -> click.Context:
"""Configure masking on archived objects
These tools require read/write access to the masking database.
An entry must be added to the configuration file as follow::
\b
storage:
…
\b
masking_admin:
masking_db: "service=swh-masking-admin"
"""
if (
"masking_admin" not in ctx.obj["config"]
or "masking_db" not in ctx.obj["config"]["masking_admin"]
):
ctx.fail(
"You must have a masking_admin, with a masking_db entry, "
"configured in your config file."
)
from psycopg2 import OperationalError
from .db import MaskingAdmin
try:
ctx.obj["masking_admin"] = MaskingAdmin.connect(
ctx.obj["config"]["masking_admin"]["masking_db"]
)
except OperationalError as ex:
raise click.ClickException(str(ex))
return ctx
[docs]
class EditAborted(BaseException):
pass
[docs]
def edit_message(prompt: str, extra_lines: List[str] = []):
"""Edit a message through click.edit() adding some extra context, filtering
comments, and raising an exception on empty messages"""
message = (
"\n\n"
f"# {prompt}\n"
"# Lines starting with “#” will be ignored. "
"An empty message will abort the operation.\n"
)
if extra_lines:
message += "#\n# " + "\n# ".join(extra_lines)
message = click.edit(message)
if message is None:
raise EditAborted()
message = "\n".join(
line.strip()
for line in message.lstrip().split("\n")
if not line.startswith("#")
).rstrip()
if message == "":
raise EditAborted()
return message
[docs]
class RequestType(click.ParamType):
name = "request slug or uuid"
[docs]
def convert(self, value, param, ctx) -> "MaskingRequest":
# Try from UUID first
from uuid import UUID
try:
uuid = UUID(value)
except ValueError:
pass
else:
request = ctx.obj["masking_admin"].find_request_by_id(uuid)
if not request:
raise click.ClickException(f"Request “{uuid}” not found from id.")
return request
# Try from slug
request = ctx.obj["masking_admin"].find_request(value)
if not request:
raise click.ClickException(f"Request “{value}” not found.")
return request
[docs]
class SWHIDType(click.ParamType):
name = "swhid"
[docs]
def convert(self, value, param, ctx) -> "ExtendedSWHID":
from swh.model.swhids import ExtendedSWHID, ValidationError
try:
return ExtendedSWHID.from_string(value)
except ValidationError:
raise click.ClickException(f"Unable to parse “{value}” as a SWHID.")
@masking_cli_group.command(name="new-request")
@click.option(
"-m", "--message", "reason", metavar="REASON", help="why the request was made"
)
@click.argument("slug")
@click.pass_context
def new_request(ctx: click.Context, slug: str, reason: Optional[str] = None) -> None:
"""Create a new request to mask objects
SLUG is a human-readable unique identifier for the request. It is an
internal identifier that will be used in subsequent commands to address this
newly recorded request.
A reason for the request must be specified, either using the `-m` option or
via the provided editor.
"""
from .db import DuplicateRequest
if reason is None or reason == "":
try:
reason = edit_message(f"Please enter a reason for the request “{slug}”.")
except EditAborted:
raise click.ClickException("Aborting due to an empty reason.")
try:
request = ctx.obj["masking_admin"].create_request(slug, reason)
except DuplicateRequest:
raise click.ClickException(f"Request “{slug}” already exists.")
click.echo(
f"New request “{click.style(slug, fg='green', bold=True)}” "
f"recorded with identifier {request.id}"
)
@masking_cli_group.command(name="list-requests")
@click.option(
"-a",
"--include-cleared-requests/--exclude-cleared-requests",
default=False,
help="Show requests without any masking state",
)
@click.pass_context
def list_requests(ctx: click.Context, include_cleared_requests: bool) -> None:
"""List masking requests"""
def list_output() -> Iterator[str]:
for request, mask_count in ctx.obj["masking_admin"].get_requests(
include_cleared_requests=include_cleared_requests
):
yield f"📄 {click.style(request.slug, bold=True)}\n"
yield f"📊 {mask_count} object{'s' if mask_count != 1 else ''}\n"
yield f"🪪 {request.id}\n"
# XXX: humanize would be nice here as well
yield f"📅 {request.date.strftime('%c %z')}\n"
yield from output_message(request.reason)
yield "\n"
click.echo_via_pager(list_output())
[docs]
class MaskedStateType(click.Choice):
def __init__(self):
from .db import MaskedState
super().__init__(
[format_masked_state(state) for state in MaskedState], case_sensitive=False
)
[docs]
def parse_masked_state(str: str) -> "MaskedState":
from .db import MaskedState
return MaskedState[str.replace("-", "_").upper()]
[docs]
def read_swhids(file: TextIO) -> List["ExtendedSWHID"]:
import re
from swh.model.swhids import ExtendedSWHID
filter_re = re.compile(r"^(#|$)")
return [
ExtendedSWHID.from_string(line.strip())
for line in file.read().split("\n")
if not filter_re.match(line)
]
@masking_cli_group.command(name="update-objects")
@click.option("-m", "--message", help="an explanation for this change")
@click.option("-f", "--file", type=click.File(), help="a file with on SWHID per line")
@click.argument("request", metavar="SLUG", type=RequestType())
@click.argument("new-state", metavar="NEW_STATE", type=MaskedStateType())
@click.pass_context
def update_objects(
ctx: click.Context,
request: "MaskingRequest",
new_state: str,
message: Optional[str] = None,
file: Optional[TextIO] = None,
) -> None:
"""Update the state of given objects
The masked state of the provided SWHIDs will be updated to NEW_STATE for the
request SLUG.
NEW_STATE must be one of “visible”, “decision-pending” or “restricted”.
SWHIDs must be provided one per line, either via the standard input or a
file specified via the `-f` option. `-` is synonymous for the standard
input.
An explanation for this change must be added to the request history. It can
either be specified by the `-m` option or via the provided editor.
"""
import sys
from swh.model.swhids import ValidationError
from .db import RequestNotFound
if file is None:
file = sys.stdin
masked_state = parse_masked_state(new_state)
try:
swhids = read_swhids(file)
except ValidationError as ex:
raise click.ClickException(ex.messages[0])
if len(swhids) == 0:
raise click.ClickException("No SWHIDs given!")
if message is None or message == "":
try:
message = edit_message(
f"Please enter an explanation for this update on request “{request.slug}”."
)
except EditAborted:
raise click.ClickException("Aborting due to an empty explanation.")
try:
ctx.obj["masking_admin"].set_object_state(request.id, masked_state, swhids)
ctx.obj["masking_admin"].record_history(request.id, message)
except RequestNotFound:
raise click.ClickException(f"Request with id “{request.id}” not found.")
click.echo(
f"Updated masking state for {len(swhids)} objects in request “{request.slug}”."
)
@masking_cli_group.command(name="status")
@click.argument("request", metavar="SLUG", type=RequestType())
@click.pass_context
def status_cmd(ctx: click.Context, request: "MaskingRequest") -> None:
"""Get the masking states defined by a request"""
states = ctx.obj["masking_admin"].get_states_for_request(request.id)
for swhid, state in states.items():
click.echo(f"{swhid} {format_masked_state(state)}")
[docs]
def output_message(message: str) -> Iterator[str]:
import textwrap
for i, line in enumerate(message.splitlines()):
yield textwrap.fill(
line,
initial_indent="🗩 " if i == 0 else " ",
subsequent_indent=" ",
replace_whitespace=False,
)
yield "\n"
@masking_cli_group.command(name="history")
@click.argument("request", metavar="SLUG", type=RequestType())
@click.pass_context
def history_cmd(ctx: click.Context, request: "MaskingRequest") -> None:
"""Get the history for a request"""
def history_output() -> Iterator[str]:
# XXX: we have no way to tie a record to a set of swhids or their state
# the only thing we can do is display the messages
yield f"History for request “{request.slug}” ({request.id}) \n"
yield from output_message(request.reason)
yield "\n"
for record in ctx.obj["masking_admin"].get_history(request.id):
# XXX: if we agree to bring humanize in the dependencies
# relative_time = humanize.naturaltime(
# dt.datetime.now(tz=dt.timezone.utc) - record.date
# )
yield f"📅 {record.date.strftime('%c %z')}\n"
for i, line in enumerate(record.message.splitlines()):
yield from output_message(record.message)
click.echo_via_pager(history_output())
@masking_cli_group.command(name="object-state")
@click.argument("swhids", metavar="SWHID", nargs=-1, type=SWHIDType())
@click.pass_context
def object_state(ctx: click.Context, swhids: List["ExtendedSWHID"]) -> None:
"""Get the masking state for a set of SWHIDs
If an object given in the arguments is not listed in the output,
it means no masking state is set in any requests.
"""
import itertools
from .db import MaskedState
STATE_TO_COLORS = {
MaskedState.VISIBLE: "bright_green",
MaskedState.DECISION_PENDING: "bright_yellow",
MaskedState.RESTRICTED: "bright_red",
}
STATE_TO_LABEL = {
MaskedState.VISIBLE: "visible",
MaskedState.DECISION_PENDING: "decision-pending",
MaskedState.RESTRICTED: "restricted",
}
def state_output() -> Iterator[str]:
# find_masks() will group masks for the same SWHID
for swhid, masks_iter in itertools.groupby(
ctx.obj["masking_admin"].find_masks(swhids), key=lambda mask: mask.swhid
):
masks = list(masks_iter)
masked = any(mask.state != MaskedState.VISIBLE for mask in masks)
yield (
f"{'masked ' if masked else 'visible'} "
f"{click.style(str(masks[0].swhid), bold=masked)}\n"
)
for mask in masks:
yield click.style(
f" {mask.request_slug}: {STATE_TO_LABEL[mask.state]}\n",
fg=STATE_TO_COLORS[mask.state],
)
click.echo_via_pager(state_output())
@masking_cli_group.command(name="clear-request")
@click.option("-m", "--message", help="an explanation for this change")
@click.argument("request", metavar="SLUG", type=RequestType())
@click.pass_context
def clear_request(
ctx: click.Context, request: "MaskingRequest", message: Optional[str]
) -> None:
"""Remove all masking states for the given request"""
from .db import RequestNotFound
if message is None or message == "":
states = ctx.obj["masking_admin"].get_states_for_request(request.id)
extra_lines = ["Associated object states:", ""]
for swhid, state in states.items():
extra_lines.append(f"{swhid} {format_masked_state(state)}")
try:
message = edit_message(
"Please enter an explanation for clearing masks"
f" from request “{request.slug}”.",
extra_lines=extra_lines,
)
except EditAborted:
raise click.ClickException("Aborting due to an empty explanation.")
try:
ctx.obj["masking_admin"].delete_masks(request.id)
ctx.obj["masking_admin"].record_history(request.id, message)
except RequestNotFound:
raise click.ClickException(f"Request with id “{request.id}” not found.")
click.echo(f"Masks cleared for request “{request.slug}”.")
