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authorDominik Maier <domenukk@gmail.com>2021-02-15 13:52:23 +0100
committerDominik Maier <domenukk@gmail.com>2021-02-15 13:52:23 +0100
commitcebde1f9e69170a27aacfed8befe8b62ac8c6858 (patch)
tree0771da70340bb0458186261af65f8fc10dcd6c35 /utils/custom_mutators
parent0298ae82b06c9776294c1da15ec278ef35dfa770 (diff)
downloadafl++-cebde1f9e69170a27aacfed8befe8b62ac8c6858.tar.gz
ran black on python scripts
Diffstat (limited to 'utils/custom_mutators')
-rw-r--r--utils/custom_mutators/XmlMutatorMin.py110
-rw-r--r--utils/custom_mutators/common.py12
-rw-r--r--utils/custom_mutators/example.py13
-rw-r--r--utils/custom_mutators/simple-chunk-replace.py16
-rw-r--r--utils/custom_mutators/wrapper_afl_min.py13
5 files changed, 94 insertions, 70 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)
-
diff --git a/utils/custom_mutators/common.py b/utils/custom_mutators/common.py
index 9a1ef0a3..44a5056a 100644
--- a/utils/custom_mutators/common.py
+++ b/utils/custom_mutators/common.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 # encoding: utf-8
-'''
+"""
 Module containing functions shared between multiple AFL modules
 
 @author:     Christian Holler (:decoder)
@@ -12,7 +12,7 @@ License, v. 2.0. If a copy of the MPL was not distributed with this
 file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 @contact:    choller@mozilla.com
-'''
+"""
 
 from __future__ import print_function
 import random
@@ -23,18 +23,18 @@ import re
 def randel(l):
     if not l:
         return None
-    return l[random.randint(0, len(l)-1)]
+    return l[random.randint(0, len(l) - 1)]
 
 
 def randel_pop(l):
     if not l:
         return None
-    return l.pop(random.randint(0, len(l)-1))
+    return l.pop(random.randint(0, len(l) - 1))
 
 
 def write_exc_example(data, exc):
-    exc_name = re.sub(r'[^a-zA-Z0-9]', '_', repr(exc))
+    exc_name = re.sub(r"[^a-zA-Z0-9]", "_", repr(exc))
 
     if not os.path.exists(exc_name):
-        with open(exc_name, 'w') as f:
+        with open(exc_name, "w") as f:
             f.write(data)
diff --git a/utils/custom_mutators/example.py b/utils/custom_mutators/example.py
index cf659e5a..3a6d22e4 100644
--- a/utils/custom_mutators/example.py
+++ b/utils/custom_mutators/example.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 # encoding: utf-8
-'''
+"""
 Example Python Module for AFLFuzz
 
 @author:     Christian Holler (:decoder)
@@ -12,7 +12,7 @@ License, v. 2.0. If a copy of the MPL was not distributed with this
 file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 @contact:    choller@mozilla.com
-'''
+"""
 
 import random
 
@@ -26,12 +26,12 @@ COMMANDS = [
 
 
 def init(seed):
-    '''
+    """
     Called once when AFLFuzz starts up. Used to seed our RNG.
 
     @type seed: int
     @param seed: A 32-bit random value
-    '''
+    """
     random.seed(seed)
 
 
@@ -40,7 +40,7 @@ def deinit():
 
 
 def fuzz(buf, add_buf, max_size):
-    '''
+    """
     Called per fuzzing iteration.
 
     @type buf: bytearray
@@ -55,13 +55,14 @@ def fuzz(buf, add_buf, max_size):
 
     @rtype: bytearray
     @return: A new bytearray containing the mutated data
-    '''
+    """
     ret = bytearray(100)
 
     ret[:3] = random.choice(COMMANDS)
 
     return ret
 
+
 # Uncomment and implement the following methods if you want to use a custom
 # trimming algorithm. See also the documentation for a better API description.
 
diff --git a/utils/custom_mutators/simple-chunk-replace.py b/utils/custom_mutators/simple-chunk-replace.py
index df2f4ca7..c57218dd 100644
--- a/utils/custom_mutators/simple-chunk-replace.py
+++ b/utils/custom_mutators/simple-chunk-replace.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 # encoding: utf-8
-'''
+"""
 Simple Chunk Cross-Over Replacement Module for AFLFuzz
 
 @author:     Christian Holler (:decoder)
@@ -12,24 +12,24 @@ License, v. 2.0. If a copy of the MPL was not distributed with this
 file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 @contact:    choller@mozilla.com
-'''
+"""
 
 import random
 
 
 def init(seed):
-    '''
+    """
     Called once when AFLFuzz starts up. Used to seed our RNG.
 
     @type seed: int
     @param seed: A 32-bit random value
-    '''
+    """
     # Seed our RNG
     random.seed(seed)
 
 
 def fuzz(buf, add_buf, max_size):
-    '''
+    """
     Called per fuzzing iteration.
 
     @type buf: bytearray
@@ -44,7 +44,7 @@ def fuzz(buf, add_buf, max_size):
 
     @rtype: bytearray
     @return: A new bytearray containing the mutated data
-    '''
+    """
     # Make a copy of our input buffer for returning
     ret = bytearray(buf)
 
@@ -58,7 +58,9 @@ def fuzz(buf, add_buf, max_size):
     rand_dst_idx = random.randint(0, len(buf))
 
     # Make the chunk replacement
-    ret[rand_dst_idx:rand_dst_idx + fragment_len] = add_buf[rand_src_idx:rand_src_idx + fragment_len]
+    ret[rand_dst_idx : rand_dst_idx + fragment_len] = add_buf[
+        rand_src_idx : rand_src_idx + fragment_len
+    ]
 
     # Return data
     return ret
diff --git a/utils/custom_mutators/wrapper_afl_min.py b/utils/custom_mutators/wrapper_afl_min.py
index ecb03b55..5cd60031 100644
--- a/utils/custom_mutators/wrapper_afl_min.py
+++ b/utils/custom_mutators/wrapper_afl_min.py
@@ -27,7 +27,7 @@ def log(text):
 
 def init(seed):
     """
-          Called once when AFL starts up. Seed is used to identify the AFL instance in log files
+    Called once when AFL starts up. Seed is used to identify the AFL instance in log files
     """
 
     global __mutator__
@@ -72,7 +72,10 @@ def fuzz(buf, add_buf, max_size):
     if via_buffer:
         try:
             __mutator__.init_from_string(buf_str)
-            log("fuzz(): Mutator successfully initialized with AFL buffer (%d bytes)" % len(buf_str))
+            log(
+                "fuzz(): Mutator successfully initialized with AFL buffer (%d bytes)"
+                % len(buf_str)
+            )
         except Exception:
             via_buffer = False
             log("fuzz(): Can't initialize mutator with AFL buffer")
@@ -104,7 +107,7 @@ def fuzz(buf, add_buf, max_size):
 
 
 # Main (for debug)
-if __name__ == '__main__':
+if __name__ == "__main__":
 
     __log__ = True
     __log_file__ = "/dev/stdout"
@@ -112,7 +115,9 @@ if __name__ == '__main__':
 
     init(__seed__)
 
-    in_1 = bytearray("<foo ddd='eeee'>ffff<a b='c' d='456' eee='ffffff'>zzzzzzzzzzzz</a><b yyy='YYY' zzz='ZZZ'></b></foo>")
+    in_1 = bytearray(
+        "<foo ddd='eeee'>ffff<a b='c' d='456' eee='ffffff'>zzzzzzzzzzzz</a><b yyy='YYY' zzz='ZZZ'></b></foo>"
+    )
     in_2 = bytearray("<abc abc123='456' abcCBA='ppppppppppppppppppppppppppppp'/>")
     out = fuzz(in_1, in_2)
     print(out)