tlsfuzzer/tlsfuzzer

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tlsfuzzer/expect.py

Summary

Maintainability
F
6 days
Test Coverage
A
97%

File expect.py has 1651 lines of code (exceeds 500 allowed). Consider refactoring.
Open

# Author: Hubert Kario, (c) 2015
# Released under Gnu GPL v2.0, see LICENSE file for details

"""Parsing and processing of received TLS messages"""
from __future__ import print_function
Severity: Major
Found in tlsfuzzer/expect.py - About 3 days to fix

    Cyclomatic complexity is too high in method process. (23)
    Open

        def process(self, state, msg):
            """
            :type state: `~ConnectionState`
            """
            assert msg.contentType == ContentType.handshake
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Function process has a Cognitive Complexity of 30 (exceeds 10 allowed). Consider refactoring.
    Open

        def process(self, state, msg):
            """Process the Server Key Exchange message"""
            assert msg.contentType == ContentType.handshake
            parser = Parser(msg.write())
            hs_type = parser.get(1)
    Severity: Minor
    Found in tlsfuzzer/expect.py - About 3 hrs to fix

    Cognitive Complexity

    Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

    A method's cognitive complexity is based on a few simple rules:

    • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
    • Code is considered more complex for each "break in the linear flow of the code"
    • Code is considered more complex when "flow breaking structures are nested"

    Further reading

    Cyclomatic complexity is too high in method process. (18)
    Open

        def process(self, state, msg):
            """Process the Server Key Exchange message"""
            assert msg.contentType == ContentType.handshake
            parser = Parser(msg.write())
            hs_type = parser.get(1)
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Cyclomatic complexity is too high in method _process_extensions. (17)
    Open

        def _process_extensions(self, state, cln_hello, srv_hello):
            """Check if extensions are correct."""
            # extensions allowed in TLS 1.3 ServerHello and HelloRetryRequest
            # messages (as some need to be echoed by server in EncryptedExtensions
            # and some in Certificate)
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Cyclomatic complexity is too high in method process. (16)
    Open

        def process(self, state, msg):
            """
            Process the message and update state accordingly
    
            :type state: ConnectionState
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Function _process_extensions has a Cognitive Complexity of 23 (exceeds 10 allowed). Consider refactoring.
    Open

        def _process_extensions(self, state, cln_hello, srv_hello):
            """Check if extensions are correct."""
            # extensions allowed in TLS 1.3 ServerHello and HelloRetryRequest
            # messages (as some need to be echoed by server in EncryptedExtensions
            # and some in Certificate)
    Severity: Minor
    Found in tlsfuzzer/expect.py - About 2 hrs to fix

    Cognitive Complexity

    Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

    A method's cognitive complexity is based on a few simple rules:

    • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
    • Code is considered more complex for each "break in the linear flow of the code"
    • Code is considered more complex when "flow breaking structures are nested"

    Further reading

    Cyclomatic complexity is too high in method _check_downgrade_protection. (14)
    Open

        def _check_downgrade_protection(self, srv_hello):
            """
            Verify that server provided downgrade protection as specified in
            RFC 8446, Section 4.1.3
            """
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Cyclomatic complexity is too high in method process. (12)
    Open

        def process(self, state, msg):
            """
            :type state: ConnectionState
            :type msg: Message
            """
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Cyclomatic complexity is too high in class ExpectCertificateVerify. (12)
    Open

    class ExpectCertificateVerify(ExpectHandshake):
        """
        Processing TLS Handshake protocol Certificate Verify messages.
        :param tuple(int,int) version: Expected TLS version of the message. If not
        provided will be taken from the state.
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Cyclomatic complexity is too high in method process. (12)
    Open

        def process(self, state, msg):
            assert msg.contentType == ContentType.alert
            parser = Parser(msg.write())
    
            alert = Alert()
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Function process has a Cognitive Complexity of 20 (exceeds 10 allowed). Consider refactoring.
    Open

        def process(self, state, msg):
            """
            :type state: `~ConnectionState`
            """
            assert msg.contentType == ContentType.handshake
    Severity: Minor
    Found in tlsfuzzer/expect.py - About 1 hr to fix

    Cognitive Complexity

    Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

    A method's cognitive complexity is based on a few simple rules:

    • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
    • Code is considered more complex for each "break in the linear flow of the code"
    • Code is considered more complex when "flow breaking structures are nested"

    Further reading

    Cyclomatic complexity is too high in class ExpectServerKeyExchange. (11)
    Open

    class ExpectServerKeyExchange(ExpectHandshake):
        """Processing TLS Handshake protocol Server Key Exchange message"""
    
        def __init__(self, version=None, cipher_suite=None, valid_sig_algs=None,
                     valid_groups=None, valid_params=None):
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Cyclomatic complexity is too high in method _compare_extensions. (11)
    Open

        def _compare_extensions(self, message):
            """
            Verify that server provided extensions match exactly expected list.
            """
            # if the list of extensions is present, make sure it matches exactly
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Cyclomatic complexity is too high in method _checkParams. (11)
    Open

        def _checkParams(self, server_key_exchange):
            groups = []
            if self.valid_groups and any(i in range(256, 512)
                                         for i in self.valid_groups):
                groups = [RFC7919_GROUPS[i - 256] for i in self.valid_groups
    Severity: Minor
    Found in tlsfuzzer/expect.py by radon

    Cyclomatic Complexity

    Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

    Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

    Construct Effect on CC Reasoning
    if +1 An if statement is a single decision.
    elif +1 The elif statement adds another decision.
    else +0 The else statement does not cause a new decision. The decision is at the if.
    for +1 There is a decision at the start of the loop.
    while +1 There is a decision at the while statement.
    except +1 Each except branch adds a new conditional path of execution.
    finally +0 The finally block is unconditionally executed.
    with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
    assert +1 The assert statement internally roughly equals a conditional statement.
    Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
    Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

    Source: http://radon.readthedocs.org/en/latest/intro.html

    Function process has 28 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

        def process(self, state, msg):
            """
            Process the message and update state accordingly
    
            :type state: ConnectionState
    Severity: Minor
    Found in tlsfuzzer/expect.py - About 1 hr to fix

      Function _process_extensions has a Cognitive Complexity of 15 (exceeds 10 allowed). Consider refactoring.
      Open

          def _process_extensions(self, state, msg):
              for ext in msg.extensions:
                  ext_id = ext.extType
                  handler = None
                  if ext_id in TLS_1_3_CR_FORBIDDEN:
      Severity: Minor
      Found in tlsfuzzer/expect.py - About 1 hr to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function _check_downgrade_protection has a Cognitive Complexity of 14 (exceeds 10 allowed). Consider refactoring.
      Open

          def _check_downgrade_protection(self, srv_hello):
              """
              Verify that server provided downgrade protection as specified in
              RFC 8446, Section 4.1.3
              """
      Severity: Minor
      Found in tlsfuzzer/expect.py - About 55 mins to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function _process_extensions has a Cognitive Complexity of 14 (exceeds 10 allowed). Consider refactoring.
      Open

          def _process_extensions(self, state, srv_exts):
              """Check if extensions are correct."""
              # fix these constants, when the extensions are implemented
              ee_supported = [ExtensionType.server_name,
                              1,  # max_fragment_length - RFC 6066
      Severity: Minor
      Found in tlsfuzzer/expect.py - About 55 mins to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Function process has a Cognitive Complexity of 11 (exceeds 10 allowed). Consider refactoring.
      Open

          def process(self, state, msg):
              """
              Process the message and update state accordingly
      
              :type state: ConnectionState
      Severity: Minor
      Found in tlsfuzzer/expect.py - About 25 mins to fix

      Cognitive Complexity

      Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

      A method's cognitive complexity is based on a few simple rules:

      • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
      • Code is considered more complex for each "break in the linear flow of the code"
      • Code is considered more complex when "flow breaking structures are nested"

      Further reading

      Identical blocks of code found in 2 locations. Consider refactoring.
      Open

                  if callable(handler):
                      handler(state, ext)
                  elif isinstance(handler, TLSExtension):
                      if not handler == ext:
                          raise AssertionError("Expected extension not "
      Severity: Major
      Found in tlsfuzzer/expect.py and 1 other location - About 3 hrs to fix
      tlsfuzzer/expect.py on lines 697..709

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 80.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Identical blocks of code found in 2 locations. Consider refactoring.
      Open

                  if callable(handler):
                      handler(state, ext)
                  elif isinstance(handler, TLSExtension):
                      if not handler == ext:
                          raise AssertionError("Expected extension not "
      Severity: Major
      Found in tlsfuzzer/expect.py and 1 other location - About 3 hrs to fix
      tlsfuzzer/expect.py on lines 1752..1764

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 80.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 2 locations. Consider refactoring.
      Open

      def srv_ext_handler_ec_point(state, extension):
          """Process the ec_point_formats extension from server."""
          del state
          if extension.formats is None or not extension.formats:
              raise AssertionError("Malformed ec_point_formats extension")
      Severity: Minor
      Found in tlsfuzzer/expect.py and 1 other location - About 35 mins to fix
      tlsfuzzer/expect.py on lines 272..276

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 43.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 2 locations. Consider refactoring.
      Open

          @staticmethod
          def _get_autohandler(ext_id):
              try:
                  return _EE_EXT_HANDLER[ext_id]
              except KeyError:
      Severity: Minor
      Found in tlsfuzzer/expect.py and 1 other location - About 35 mins to fix
      tlsfuzzer/expect.py on lines 642..649

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 43.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 2 locations. Consider refactoring.
      Open

      def srv_ext_handler_npn(state, extension):
          """Process the NPN extension from server."""
          del state
          if extension.protocols is None or not extension.protocols:
              raise AssertionError("Malformed NPN extension")
      Severity: Minor
      Found in tlsfuzzer/expect.py and 1 other location - About 35 mins to fix
      tlsfuzzer/expect.py on lines 265..269

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 43.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 2 locations. Consider refactoring.
      Open

          @staticmethod
          def _get_autohandler(ext_id):
              try:
                  return _srv_ext_handler[ext_id]
              except KeyError:
      Severity: Minor
      Found in tlsfuzzer/expect.py and 1 other location - About 35 mins to fix
      tlsfuzzer/expect.py on lines 1711..1718

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 43.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Continuation line with same indent as next logical line
      Open

                      srv_hello.random[24:] == TLS_1_2_DOWNGRADE_SENTINEL:
      Severity: Minor
      Found in tlsfuzzer/expect.py by pep8

      Continuation lines indentation.

      Continuation lines should align wrapped elements either vertically
      using Python's implicit line joining inside parentheses, brackets
      and braces, or using a hanging indent.
      
      When using a hanging indent these considerations should be applied:
      - there should be no arguments on the first line, and
      - further indentation should be used to clearly distinguish itself
        as a continuation line.
      
      Okay: a = (\n)
      E123: a = (\n    )
      
      Okay: a = (\n    42)
      E121: a = (\n   42)
      E122: a = (\n42)
      E123: a = (\n    42\n    )
      E124: a = (24,\n     42\n)
      E125: if (\n    b):\n    pass
      E126: a = (\n        42)
      E127: a = (24,\n      42)
      E128: a = (24,\n    42)
      E129: if (a or\n    b):\n    pass
      E131: a = (\n    42\n 24)

      Continuation line under-indented for visual indent
      Open

                      or cln_hello.session_id == srv_hello.session_id) and
      Severity: Minor
      Found in tlsfuzzer/expect.py by pep8

      Continuation lines indentation.

      Continuation lines should align wrapped elements either vertically
      using Python's implicit line joining inside parentheses, brackets
      and braces, or using a hanging indent.
      
      When using a hanging indent these considerations should be applied:
      - there should be no arguments on the first line, and
      - further indentation should be used to clearly distinguish itself
        as a continuation line.
      
      Okay: a = (\n)
      E123: a = (\n    )
      
      Okay: a = (\n    42)
      E121: a = (\n   42)
      E122: a = (\n42)
      E123: a = (\n    42\n    )
      E124: a = (24,\n     42\n)
      E125: if (\n    b):\n    pass
      E126: a = (\n        42)
      E127: a = (24,\n      42)
      E128: a = (24,\n    42)
      E129: if (a or\n    b):\n    pass
      E131: a = (\n    42\n 24)

      Continuation line under-indented for visual indent
      Open

                      self._extract_version(srv_hello) < (3, 4)):
      Severity: Minor
      Found in tlsfuzzer/expect.py by pep8

      Continuation lines indentation.

      Continuation lines should align wrapped elements either vertically
      using Python's implicit line joining inside parentheses, brackets
      and braces, or using a hanging indent.
      
      When using a hanging indent these considerations should be applied:
      - there should be no arguments on the first line, and
      - further indentation should be used to clearly distinguish itself
        as a continuation line.
      
      Okay: a = (\n)
      E123: a = (\n    )
      
      Okay: a = (\n    42)
      E121: a = (\n   42)
      E122: a = (\n42)
      E123: a = (\n    42\n    )
      E124: a = (24,\n     42\n)
      E125: if (\n    b):\n    pass
      E126: a = (\n        42)
      E127: a = (24,\n      42)
      E128: a = (24,\n    42)
      E129: if (a or\n    b):\n    pass
      E131: a = (\n    42\n 24)

      Continuation line under-indented for visual indent
      Open

                      srv_hello.session_id != bytearray(0) and
      Severity: Minor
      Found in tlsfuzzer/expect.py by pep8

      Continuation lines indentation.

      Continuation lines should align wrapped elements either vertically
      using Python's implicit line joining inside parentheses, brackets
      and braces, or using a hanging indent.
      
      When using a hanging indent these considerations should be applied:
      - there should be no arguments on the first line, and
      - further indentation should be used to clearly distinguish itself
        as a continuation line.
      
      Okay: a = (\n)
      E123: a = (\n    )
      
      Okay: a = (\n    42)
      E121: a = (\n   42)
      E122: a = (\n42)
      E123: a = (\n    42\n    )
      E124: a = (24,\n     42\n)
      E125: if (\n    b):\n    pass
      E126: a = (\n        42)
      E127: a = (24,\n      42)
      E128: a = (24,\n    42)
      E129: if (a or\n    b):\n    pass
      E131: a = (\n    42\n 24)

      Closing bracket does not match visual indentation
      Open

                                         ))
      Severity: Minor
      Found in tlsfuzzer/expect.py by pep8

      Continuation lines indentation.

      Continuation lines should align wrapped elements either vertically
      using Python's implicit line joining inside parentheses, brackets
      and braces, or using a hanging indent.
      
      When using a hanging indent these considerations should be applied:
      - there should be no arguments on the first line, and
      - further indentation should be used to clearly distinguish itself
        as a continuation line.
      
      Okay: a = (\n)
      E123: a = (\n    )
      
      Okay: a = (\n    42)
      E121: a = (\n   42)
      E122: a = (\n42)
      E123: a = (\n    42\n    )
      E124: a = (24,\n     42\n)
      E125: if (\n    b):\n    pass
      E126: a = (\n        42)
      E127: a = (24,\n      42)
      E128: a = (24,\n    42)
      E129: if (a or\n    b):\n    pass
      E131: a = (\n    42\n 24)

      Line too long (80 > 79 characters)
      Open

              :param boolean force_resume: assume that the session is getting resumed,
      Severity: Minor
      Found in tlsfuzzer/expect.py by pep8

      Limit all lines to a maximum of 79 characters.

      There are still many devices around that are limited to 80 character
      lines; plus, limiting windows to 80 characters makes it possible to
      have several windows side-by-side.  The default wrapping on such
      devices looks ugly.  Therefore, please limit all lines to a maximum
      of 79 characters. For flowing long blocks of text (docstrings or
      comments), limiting the length to 72 characters is recommended.
      
      Reports error E501.

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