def visit_let_node(self, node: LetNode):
for kv_node in node.assignments_node.kv_nodes:
lhs_chain = []
with self.consumer(lambda v: lhs_chain.append(v)):
self._unwind_lhs(kv_node.key_node)
rhs = Ref()
with self.consumer(lambda v: rhs.set(v)):
kv_node.value_node.accept(self)
if len(lhs_chain) == 1:
self.context[lhs_chain[0]] = rhs.get()
else:
if not lhs_chain[0] in self.context:
raise PeekError(f'Unknown name: {lhs_chain[0]!r}')
lhs = self.context[lhs_chain[0]]
for x in lhs_chain[1:-1]:
if isinstance(lhs, dict) or (isinstance(lhs, list)
and isinstance(x, int)):
lhs = lhs[x]
else:
raise PeekError(
f'Invalid lhs for assignment: {lhs_chain}')
x = lhs_chain[-1]
if isinstance(lhs, dict) or (isinstance(lhs, list)
and isinstance(x, int)):
lhs[x] = rhs.get()
else:
raise PeekError(f'Invalid lhs for assignment: {lhs_chain}')
def visit_unary_op_node(self, node: UnaryOpNode):
operand = Ref()
with self.consumer(lambda v: operand.set(v)):
node.operand_node.accept(self)
op_func = self._unary_op_funcs.get(node.op_token.value, None)
if op_func is None:
raise PeekError(f'Unknown unary operator: {node.op_token.value!r}')
self.consume(op_func(operand.get()))
def _map(app, values, ret):
ret_nodes = app.parser.parse('return ' + ret['return'], log_level='WARNING')
results = []
for value in values:
app.vm.context['s'] = value
v_ref = Ref()
with app.vm.consumer(lambda v: v_ref.set(v)):
ret_nodes[0].args_node.value_nodes[0].accept(app.vm)
results.append(v_ref.get())
return results
def visit_dict_node(self, node: DictNode):
d_ref = Ref()
with self.consumer(lambda v: d_ref.set(v)):
self._do_visit_dict_node(node, resolve_key_name=False)
d = d_ref.get()
if d.get('...', None) is not None:
splat = d.pop('...')
assert isinstance(splat, dict), f'Cannot splat type other than dict, got: {splat!r}'
d.update(splat)
self.consume(d)
def visit_for_in_node(self, node: ForInNode):
var_name = node.item.token.value
items_ref = Ref()
with self.consumer(lambda v: items_ref.set(v)):
node.items.accept(self)
items = items_ref.get()
if not isinstance(items, list):
raise PeekError(
f'For in loop must operator over a list, got {items!r}')
for i in items:
self.context[var_name] = i
for n in node.suite:
n.accept(self)
def visit_bin_op_node(self, node: BinOpNode):
left_operand = Ref()
with self.consumer(lambda v: left_operand.set(v)):
node.left_node.accept(self)
right_operand = Ref()
with self.consumer(lambda v: right_operand.set(v)):
node.right_node.accept(self)
op_func = self._bin_op_funcs.get(node.op_token.value, None)
if op_func is None:
raise PeekError(
f'Unknown binary operator: {node.op_token.value!r}')
self.consume(op_func(left_operand.get(), right_operand.get()))
def visit_es_api_call_node(self, node: EsApiCallNode):
if isinstance(node.path_node, TextNode):
path = node.path
else:
path_ref = Ref()
with self.consumer(lambda v: path_ref.set(v)):
node.path_node.accept(self)
path = path_ref.get()
path = path if path.startswith('/') else ('/' + path)
options = Ref()
with self.consumer(lambda v: options.set(v)):
self._do_visit_dict_node(node.options_node)
options = options.get()
if isinstance(node, EsApiCallInlinePayloadNode):
dicts = []
with self.consumer(lambda v: dicts.append(v)):
for dict_node in node.dict_nodes:
dict_node.accept(self)
lines = [json.dumps(d) for d in dicts]
payload = ('\n'.join(lines) + '\n') if lines else None
elif isinstance(node, EsApiCallFilePayloadNode):
f_ref = Ref()
with self.consumer(lambda v: f_ref.set(v)):
node.file_node.accept(self)
with open(os.path.expanduser(f_ref.get().strip())) as ins:
payload = ins.read()
if self.app.config.as_bool('parse_payload_file'):
dicts = []
with self.consumer(lambda v: dicts.append(v)):
# NOTE this reuses the parser from the main app. It is not a problem
# because parser always finishes its job before returning. So in a
# single thread execution model, we won't corrupt the internals.
for pnode in self.app.parser.parse(payload,
payload_only=True):
self.execute_node(pnode)
lines = [json.dumps(d) for d in dicts]
payload = ('\n'.join(lines) + '\n') if lines else None
elif not payload.endswith('\n'):
payload += '\n'
else:
raise ValueError(f'Unknown node: {node!r}')
conn = options.pop('conn') if 'conn' in options else None
headers = options.pop('headers') if 'headers' in options else {}
xoid = options.pop('xoid') if 'xoid' in options else None
if xoid:
headers['x-opaque-id'] = str(xoid)
runas = options.pop('runas') if 'runas' in options else None
if runas is not None:
headers['es-security-runas-user'] = runas
if conn is not None:
es_client = self.app.es_client_manager.get_client(conn)
else:
es_client = self.app.es_client_manager.current
quiet = options.pop('quiet', False)
if options:
self.app.display.error(f'Unknown options: {options}')
return
try:
with warnings.catch_warnings(record=True) as ws:
response = es_client.perform_request(
node.method,
_maybe_encode_date_math(path),
payload,
headers=headers if headers else None)
for w in ws:
if not quiet and self._should_show_warnings(w):
self.app.display.warn(str(w.message))
self.context['_'] = _maybe_decode_json(response)
if not quiet:
self.app.display.info(response,
header_text=self._get_header_text(
conn, runas))
except Exception as e:
if getattr(e, 'info', None) is not None and isinstance(
getattr(e, 'status_code', None), int):
self.context['_'] = _maybe_decode_json(e.info) if isinstance(
e.info, str) else e.info
self.app.display.info(e.info,
header_text=self._get_header_text(
conn, runas))
else:
self.app.display.error(e,
header_text=self._get_header_text(
conn, runas))
_logger.exception(f'Error on ES API call: {node!r}')
def visit_func_call_node(self, node: FuncCallNode):
if isinstance(node.name_node, NameNode):
func = self.get_value(node.name_node.token.value)
else:
func_ref = Ref()
with self.consumer(lambda v: func_ref.set(v)):
node.name_node.accept(self)
func = func_ref.get()
if not callable(func):
raise PeekError(
f'{node.name_node!r} is not a callable, but {func!r}')
func_symbols = Ref()
with self.consumer(lambda v: func_symbols.set(v)):
node.symbols_node.accept(self)
func_args = Ref()
with self.consumer(lambda v: func_args.set(v)):
node.args_node.accept(self)
for kv_node in node.kwargs_node.kv_nodes:
assert isinstance(kv_node.key_node,
NameNode), f'{kv_node.key_node!r}'
func_kwargs = Ref()
with self.consumer(lambda v: func_kwargs.set(v)):
self._do_visit_dict_node(node.kwargs_node, resolve_key_name=False)
kwargs = func_kwargs.get()
if func_symbols.get():
kwargs['@'] = func_symbols.get()
try:
result = func(self.app, *func_args.get(), **kwargs)
if node.is_stmt:
self.app.display.info(result)
else:
self.consume(result)
except Exception as e:
_logger.exception(
f'Error on invoking function: {node.name_node!r}')
self.app.display.error(e)