diff options
Diffstat (limited to 'utils/custom_mutators/XmlMutatorMin.py')
| -rw-r--r-- | utils/custom_mutators/XmlMutatorMin.py | 110 |
1 files changed, 63 insertions, 47 deletions
diff --git a/utils/custom_mutators/XmlMutatorMin.py b/utils/custom_mutators/XmlMutatorMin.py index 4c80a2ba..3e6cd0ff 100644 --- a/utils/custom_mutators/XmlMutatorMin.py +++ b/utils/custom_mutators/XmlMutatorMin.py @@ -12,12 +12,13 @@ import random, re, io # The XmlMutatorMin class # ########################### + class XmlMutatorMin: """ - Optionals parameters: - seed Seed used by the PRNG (default: "RANDOM") - verbose Verbosity (default: False) + Optionals parameters: + seed Seed used by the PRNG (default: "RANDOM") + verbose Verbosity (default: False) """ def __init__(self, seed="RANDOM", verbose=False): @@ -41,7 +42,12 @@ class XmlMutatorMin: self.tree = None # High-level mutators (no database needed) - hl_mutators_delete = ["del_node_and_children", "del_node_but_children", "del_attribute", "del_content"] # Delete items + hl_mutators_delete = [ + "del_node_and_children", + "del_node_but_children", + "del_attribute", + "del_content", + ] # Delete items hl_mutators_fuzz = ["fuzz_attribute"] # Randomly change attribute values # Exposed mutators @@ -74,7 +80,9 @@ class XmlMutatorMin: """ Serialize a XML document. Basic wrapper around lxml.tostring() """ - return ET.tostring(tree, with_tail=False, xml_declaration=True, encoding=tree.docinfo.encoding) + return ET.tostring( + tree, with_tail=False, xml_declaration=True, encoding=tree.docinfo.encoding + ) def __ver(self, version): @@ -161,7 +169,7 @@ class XmlMutatorMin: # Randomly pick one the function calls (func, args) = random.choice(l) # Split by "," and randomly pick one of the arguments - value = random.choice(args.split(',')) + value = random.choice(args.split(",")) # Remove superfluous characters unclean_value = value value = value.strip(" ").strip("'") @@ -170,49 +178,49 @@ class XmlMutatorMin: value = attrib_value # For each type, define some possible replacement values - choices_number = ( \ - "0", \ - "11111", \ - "-128", \ - "2", \ - "-1", \ - "1/3", \ - "42/0", \ - "1094861636 idiv 1.0", \ - "-1123329771506872 idiv 3.8", \ - "17=$numericRTF", \ - str(3 + random.randrange(0, 100)), \ - ) - - choices_letter = ( \ - "P" * (25 * random.randrange(1, 100)), \ - "%s%s%s%s%s%s", \ - "foobar", \ - ) - - choices_alnum = ( \ - "Abc123", \ - "020F0302020204030204", \ - "020F0302020204030204" * (random.randrange(5, 20)), \ - ) + choices_number = ( + "0", + "11111", + "-128", + "2", + "-1", + "1/3", + "42/0", + "1094861636 idiv 1.0", + "-1123329771506872 idiv 3.8", + "17=$numericRTF", + str(3 + random.randrange(0, 100)), + ) + + choices_letter = ( + "P" * (25 * random.randrange(1, 100)), + "%s%s%s%s%s%s", + "foobar", + ) + + choices_alnum = ( + "Abc123", + "020F0302020204030204", + "020F0302020204030204" * (random.randrange(5, 20)), + ) # Fuzz the value - if random.choice((True,False)) and value == "": + if random.choice((True, False)) and value == "": # Empty new_value = value - elif random.choice((True,False)) and value.isdigit(): + elif random.choice((True, False)) and value.isdigit(): # Numbers new_value = random.choice(choices_number) - elif random.choice((True,False)) and value.isalpha(): + elif random.choice((True, False)) and value.isalpha(): # Letters new_value = random.choice(choices_letter) - elif random.choice((True,False)) and value.isalnum(): + elif random.choice((True, False)) and value.isalnum(): # Alphanumeric new_value = random.choice(choices_alnum) @@ -232,22 +240,25 @@ class XmlMutatorMin: # Log something if self.verbose: - print("Fuzzing attribute #%i '%s' of tag #%i '%s'" % (rand_attrib_id, rand_attrib, rand_elem_id, rand_elem.tag)) + print( + "Fuzzing attribute #%i '%s' of tag #%i '%s'" + % (rand_attrib_id, rand_attrib, rand_elem_id, rand_elem.tag) + ) # Modify the attribute rand_elem.set(rand_attrib, new_value.decode("utf-8")) def __del_node_and_children(self): - """ High-level minimizing mutator - Delete a random node and its children (i.e. delete a random tree) """ + """High-level minimizing mutator + Delete a random node and its children (i.e. delete a random tree)""" self.__del_node(True) def __del_node_but_children(self): - """ High-level minimizing mutator - Delete a random node but its children (i.e. link them to the parent of the deleted node) """ + """High-level minimizing mutator + Delete a random node but its children (i.e. link them to the parent of the deleted node)""" self.__del_node(False) @@ -270,7 +281,10 @@ class XmlMutatorMin: # Log something if self.verbose: but_or_and = "and" if delete_children else "but" - print("Deleting tag #%i '%s' %s its children" % (rand_elem_id, rand_elem.tag, but_or_and)) + print( + "Deleting tag #%i '%s' %s its children" + % (rand_elem_id, rand_elem.tag, but_or_and) + ) if delete_children is False: # Link children of the random (soon to be deleted) node to its parent @@ -282,8 +296,8 @@ class XmlMutatorMin: def __del_content(self): - """ High-level minimizing mutator - Delete the attributes and children of a random node """ + """High-level minimizing mutator + Delete the attributes and children of a random node""" # Select a node to modify (rand_elem_id, rand_elem) = self.__pick_element() @@ -297,8 +311,8 @@ class XmlMutatorMin: def __del_attribute(self): - """ High-level minimizing mutator - Delete a random attribute from a random node """ + """High-level minimizing mutator + Delete a random attribute from a random node""" # Select a node to modify (rand_elem_id, rand_elem) = self.__pick_element() @@ -318,7 +332,10 @@ class XmlMutatorMin: # Log something if self.verbose: - print("Deleting attribute #%i '%s' of tag #%i '%s'" % (rand_attrib_id, rand_attrib, rand_elem_id, rand_elem.tag)) + print( + "Deleting attribute #%i '%s' of tag #%i '%s'" + % (rand_attrib_id, rand_attrib, rand_elem_id, rand_elem.tag) + ) # Delete the attribute rand_elem.attrib.pop(rand_attrib) @@ -329,4 +346,3 @@ class XmlMutatorMin: # High-level mutation self.__exec_among(self, self.hl_mutators_all, min, max) - |