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import difflib
import json
import re
import numpy as np
from model.method import Method
from .schema_validator import validate
from .util import resolve_json_value
from .relation_reasoner import RelationReasoner
class ParameterType:
STRING = "STRING"
BOOLEAN = "BOOLEAN"
NUMBER = "NUMBER"
NONE = "NONE"
OBJECT = "OBJECT"
LIST = "LIST"
class RuntimeDictionary:
def __init__(self):
self.api_response_parameter = {}
self.signature_to_value = {}
self.signature_splitter = '%APITestGen%'
self.array_pattern = re.compile('\[[0-9]+\]')
self.path_to_signature_threshold = {}
self.path_to_signature_suffix = {}
self.path_to_type = {}
self.signature_value_match_dict = {}
self.debug_method = "getLunDetails"
self.relation_reasoner = RelationReasoner()
def remove_array_notation(self, key=""):
notations = self.array_pattern.findall(key)
for notation in notations:
key = key.replace(notation, "[0]")
return key
def has_candidate_in_dictionary(self, path: str):
return self.path_to_signature_threshold.__contains__(path) or self.path_to_signature_suffix.__contains__(path)
def calculate_path_threshold(self, path: str):
sequence_matcher = difflib.SequenceMatcher()
for signature in self.signature_to_value.keys():
api, response_value_path = signature.split(self.signature_splitter)
# ratio
sequence_matcher.set_seqs(response_value_path, path)
signature_threshold_list = self.path_to_signature_threshold.get(path, [])
signature_threshold_list.append((signature, sequence_matcher.ratio()))
self.path_to_signature_threshold[path] = signature_threshold_list
# suffix match
ignored_response_value_path = str(response_value_path).lower().split('.')[-1]
ignored_case_path = str(path).lower().split('.')[-1]
if ignored_response_value_path.endswith(ignored_case_path) or ignored_case_path.endswith(
ignored_response_value_path):
suffix_set = self.path_to_signature_suffix.get(path, set())
suffix_set.add(signature)
self.path_to_signature_suffix[path] = suffix_set
def update_signature_to_path_threshold(self, signature):
api, response_value_path = signature.split(self.signature_splitter)
sequence_matcher = difflib.SequenceMatcher()
for path in self.path_to_signature_threshold.keys():
sequence_matcher.set_seqs(path, response_value_path)
self.path_to_signature_threshold[path].append((signature, sequence_matcher.ratio()))
ignored_case_response_path = str(response_value_path).lower().split('.')[-1]
ignored_case_path = str(path).lower().split('.')[-1]
# suffix match
if ignored_case_path.endswith(ignored_case_response_path) or ignored_case_response_path.endswith(
ignored_case_path):
suffix_set = self.path_to_signature_suffix.get(path, set())
suffix_set.add(signature)
self.path_to_signature_suffix[path] = suffix_set
def should_use_dictionary(self, path: str):
# we leave the opportunity for random
if np.random.random() < 0.1:
return False
if self.path_to_signature_suffix.__contains__(path) or self.path_to_signature_threshold.__contains__(path):
return True
return False
def generate_value_from_dictionary(self, path: str, method: Method, schema: dict):
feed_from_methods = [feed_method.method_name for feed_method in method.feed_from_method]
valid_parameters = []
feed_from_valid_parameters = []
odg_reference_signature = []
if "existing_lun_ids[0]" in path:
a = 2
if "deleteLunGroup" == method.method_name:
c = 3
for method_name in method.required_feed_parameter:
dependency_dict = method.required_feed_parameter[method_name]
for reference in dependency_dict:
reference_attribute_list = method.get_single_request_parameter_by_property_name(reference)
feed_parameter_list = method.get_feed_from_method_response_parameter_by_property_and_method_name(
method_name, dependency_dict[reference])
if path in reference_attribute_list and len(feed_parameter_list) > 0:
for feed_parameter in feed_parameter_list:
signature = f'{method_name}{self.signature_splitter}{feed_parameter}'
if signature in self.signature_to_value:
odg_reference_signature.append(signature)
if len(odg_reference_signature) > 0 and np.random.random() > 0.05:
valid_references = []
for signature in odg_reference_signature:
sample = self.signature_to_value[signature][
np.random.randint(0, len(self.signature_to_value[signature]))]
try:
validate(sample, schema)
valid_references.append(signature)
except:
pass
if len(valid_references) > 0:
signature = valid_references[np.random.randint(0, len(valid_references))]
val = self.signature_to_value[signature][np.random.randint(0, len(self.signature_to_value[signature]))]
return val
for parameter_signature in self.signature_to_value:
sample_value = self.signature_to_value[parameter_signature][0]
try:
validate(sample_value, schema)
# if is_id and not ('id' in parameter_signature):
# continue
# should_skip = True
# for method_name in feed_from_methods:
# if method_name in parameter_signature:
# should_skip = True
# break
# if should_skip:
# continue
valid_parameters.append(parameter_signature)
for feed_from_method_name in feed_from_methods:
if feed_from_method_name in parameter_signature:
feed_from_valid_parameters.append(parameter_signature)
break
except Exception as ex:
pass
if len(valid_parameters) == 0:
return None
suffix_parameters = self.path_to_signature_suffix.get(path, set())
intersection_suffix_feed_from_parameters = set.intersection(suffix_parameters, set(feed_from_valid_parameters))
valid_suffix_parameters = set.intersection(suffix_parameters, feed_from_valid_parameters)
# we leave the opportunity for other cases
if len(intersection_suffix_feed_from_parameters) > 0 and np.random.random() < 0.5:
signature = np.random.choice(list(intersection_suffix_feed_from_parameters))
value = self.signature_to_value[signature][np.random.choice(len(self.signature_to_value[signature]))]
return value
# suffix parameters
if len(valid_suffix_parameters) > 0 and np.random.random() < 0.5:
signature = np.random.choice(list(valid_suffix_parameters))
value = self.signature_to_value[signature][np.random.choice(len(self.signature_to_value[signature]))]
return value
# valid parameters
if len(valid_parameters) > 0:
signature = np.random.choice(list(valid_parameters))
value = self.signature_to_value[signature][np.random.choice(len(self.signature_to_value[signature]))]
return value
# from threshold dictionary
weights = []
candidates = []
for item in self.path_to_signature_threshold[path]:
cand, w = item
if not (cand in valid_parameters):
continue
weights.append(w + 0.00001)
candidates.append(cand)
weights = weights / np.sum(weights)
signature = np.random.choice(candidates, 1, p=weights)[-1]
value = self.signature_to_value[signature][np.random.choice(len(self.signature_to_value[signature]))]
# print('in threshold', path, signature, value)
return value
def inject_signature(self, api_name, attribute_path, value):
signature = api_name + self.signature_splitter + attribute_path
fifo = self.signature_to_value.get(signature, collections.deque(maxlen=20))
self.signature_to_value[signature] = fifo
fifo.append(value)
def infer_response_value_type(self, val):
if isinstance(val, bool):
return ParameterType.BOOLEAN
elif isinstance(val, dict):
return ParameterType.OBJECT
elif isinstance(val, list):
return ParameterType.LIST
elif isinstance(val, float) or isinstance(val, int):
return ParameterType.NUMBER
elif isinstance(val, str):
return ParameterType.STRING
elif val is None:
return ParameterType.NONE
raise Exception('unknown value type {}'.format(val))
def parse(self, method, response={}):
has_new_attribute = False
# we do not consider abnormal responses
if response["statusCode"] > 299:
return has_new_attribute
content = response["content"]
api_name = method.method_name
# we do not handle empty content
if content is None or len(content) == 0:
return has_new_attribute
try:
content = json.loads(content)
data = {}
resolve_json_value("", content, data)
# self.relation_reasoner.update_or_create_db_by_data(request_value, variable_replace_map, method, data)
for key in data.keys():
value = data[key]
nominal_key = self.remove_array_notation(key)
signature = f'{api_name}{self.signature_splitter}{nominal_key}'
signature_to_value = self.signature_to_value.get(signature, collections.deque(maxlen=20))
if not self.signature_to_value.__contains__(signature):
self.signature_to_value[signature] = signature_to_value
self.update_signature_to_path_threshold(signature)
has_new_attribute = True
print(signature, value)
# record value type
# value_type_set = self.path_to_type.get(signature, set())
# value_type_set.add(value_type)
# self.path_to_type[signature] = value_type_set
# if value_type in [ParameterType.STRING]:
# for sig in self.path_to_type:
# if api_name in sig or not (value_type in self.path_to_type[sig]):
# continue
# compare_sig_set = self.signature_value_match_dict.get(sig, set())
# current_sig_set = self.signature_value_match_dict.get(signature, set())
# if sig in current_sig_set:
# continue
# for val in self.signature_to_value[sig]:
# if val == value:
# compare_sig_set.add(signature)
# current_sig_set.add(sig)
# break
# self.signature_value_match_dict[sig] = compare_sig_set
# self.signature_value_match_dict[signature] = current_sig_set
if not (value in signature_to_value):
signature_to_value.append(value)
return has_new_attribute
except Exception as e:
print("exception", content)
print(e)
# raise e
return has_new_attribute
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