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Mini Shell
Mini Shell
import json
import os
import subprocess
import tempfile
from defence360agent.contracts.config import Core
from defence360agent.hooks import native as native_hooks
from defence360agent.internals.logger import EventHookLogger
from defence360agent.model.event_hook import EventHook
from defence360agent.model.instance import db
from defence360agent.utils import run, snake_case
event_hook_logger = EventHookLogger()
def get_hooks(event):
# if database is not available (i.e. direct RPC call), do not try to
# load hooks
if db.deferred:
return []
hooks = EventHook.select().where(EventHook.event == event)
return list(hooks)
async def execute_hook(path, data, native=False):
try:
if native:
native_hooks.execute_hook(path, data)
exit_code, err = 0, None
else:
data = json.dumps(data).encode()
cwd = os.path.dirname(path)
exit_code, _, err = await run(
path, shell=True, input=data, cwd=cwd
)
except Exception as e:
exit_code, err = None, repr(e)
return exit_code, err
async def execute_hooks(event, tempdir=Core.TMPDIR):
dump = event.get("DUMP")
params = dict(event)
hooks = get_hooks(event.event)
if not hooks:
return
with event_hook_logger(event.event, event.subtype) as event_logger:
if dump:
prefix = snake_case(event.__class__.__name__) + "_"
tmp = tempfile.NamedTemporaryFile(
mode="w+", prefix=prefix, suffix=".json", dir=tempdir
)
json.dump(dump, tmp)
tmp.flush()
os.fsync(tmp.fileno())
params["tmp_filename"] = tmp.name
data = {
"event": event.event,
"subtype": event.subtype,
"params": params,
}
for hook in hooks:
with event_logger(hook.path, native=hook.native) as hook_logger:
hook_logger.begin()
exit_code, err = await execute_hook(
hook.path, data, native=hook.native
)
hook_logger.finish(exit_code, err)
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