noma/bitcoind.py

Summary

Maintainability
C
1 day
Test Coverage

Starting a process with a partial executable path
Open

        call(["docker", "start", "compose_bitcoind_1"])
Severity: Info
Found in noma/bitcoind.py by bandit

Consider possible security implications associated with call module.
Open

from subprocess import call, run, PIPE, STDOUT, DEVNULL
Severity: Info
Found in noma/bitcoind.py by bandit

Starting a process with a partial executable path
Open

        tar = run(["tar", "xf", snapshot_path])
Severity: Info
Found in noma/bitcoind.py by bandit

Starting a process with a partial executable path
Open

        call(["docker", "exec", "compose_bitcoind_1", "bitcoin-cli", "stop"])
Severity: Info
Found in noma/bitcoind.py by bandit

Starting a process with a partial executable path
Open

        openssl_location = run(
            ["which", "openssl"], stdout=DEVNULL, stderr=DEVNULL
Severity: Info
Found in noma/bitcoind.py by bandit

subprocess call - check for execution of untrusted input.
Open

            openssl = run(
                ["openssl", "dgst", "-sha256", snapshot_path],
                stdout=PIPE,
                stderr=PIPE,
Severity: Info
Found in noma/bitcoind.py by bandit

Possible hardcoded password: ''
Open

def generate_rpcauth(username, password=""):
    """Generate bitcoind rpcauth string from username and optional password"""
    if not password:
        password = rpcauth.generate_password()
    salt = rpcauth.generate_salt(16)
Severity: Info
Found in noma/bitcoind.py by bandit

subprocess call - check for execution of untrusted input.
Open

            shasum = run(
                ["sha256sum", snapshot_path], stdout=PIPE, stderr=PIPE
Severity: Info
Found in noma/bitcoind.py by bandit

subprocess call - check for execution of untrusted input.
Open

        call(["docker", "start", "compose_bitcoind_1"])
Severity: Info
Found in noma/bitcoind.py by bandit

subprocess call - check for execution of untrusted input.
Open

        call(["docker", "exec", "compose_bitcoind_1", "bitcoin-cli", "stop"])
Severity: Info
Found in noma/bitcoind.py by bandit

Use of assert detected. The enclosed code will be removed when compiling to optimised byte code.
Open

        assert IOError("Corrupt snapshot file")
Severity: Info
Found in noma/bitcoind.py by bandit

Starting a process with a partial executable path
Open

            shasum = run(
                ["sha256sum", snapshot_path], stdout=PIPE, stderr=PIPE
Severity: Info
Found in noma/bitcoind.py by bandit

Chmod setting a permissive mask 0o755 on file (NOT PARSED).
Open

                os.chmod(os.path.join(path, directory), 0o755)
Severity: Minor
Found in noma/bitcoind.py by bandit

Starting a process with a partial executable path
Open

            openssl = run(
                ["openssl", "dgst", "-sha256", snapshot_path],
                stdout=PIPE,
                stderr=PIPE,
Severity: Info
Found in noma/bitcoind.py by bandit

subprocess call - check for execution of untrusted input.
Open

        openssl_location = run(
            ["which", "openssl"], stdout=DEVNULL, stderr=DEVNULL
Severity: Info
Found in noma/bitcoind.py by bandit

subprocess call - check for execution of untrusted input.
Open

        tar = run(["tar", "xf", snapshot_path])
Severity: Info
Found in noma/bitcoind.py by bandit

subprocess call - check for execution of untrusted input.
Open

        download = run(
            ["axel", "--quiet", "--no-clobber", url],
            stdout=PIPE,
            stderr=STDOUT,
Severity: Info
Found in noma/bitcoind.py by bandit

Starting a process with a partial executable path
Open

        download = run(
            ["axel", "--quiet", "--no-clobber", url],
            stdout=PIPE,
            stderr=STDOUT,
Severity: Info
Found in noma/bitcoind.py by bandit

Function fastsync has a Cognitive Complexity of 54 (exceeds 5 allowed). Consider refactoring.
Open

def fastsync():
    """
    Download blocks and chainstate snapshot

    :return bool: success status
Severity: Minor
Found in noma/bitcoind.py - About 1 day 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 function set_kv. (8)
Open

def set_kv(key, value, config_path):
    """
    Set key to value in path
    kv pairs are separated by "="

Severity: Minor
Found in noma/bitcoind.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

File bitcoind.py has 252 lines of code (exceeds 250 allowed). Consider refactoring.
Open

"""
bitcoind related functionality
"""
from subprocess import call, run, PIPE, STDOUT, DEVNULL
import os
Severity: Minor
Found in noma/bitcoind.py - About 2 hrs to fix

    Cyclomatic complexity is too high in function fastsync. (7)
    Open

    def fastsync():
        """
        Download blocks and chainstate snapshot
    
        :return bool: success status
    Severity: Minor
    Found in noma/bitcoind.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 set_kv has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
    Open

    def set_kv(key, value, config_path):
        """
        Set key to value in path
        kv pairs are separated by "="
    
    
    Severity: Minor
    Found in noma/bitcoind.py - About 35 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 check has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
    Open

    def check():
        """Check bitcoind filesystem structure"""
        bitcoind_dir = "/media/archive/archive/bitcoin"
        bitcoind_dir_exists = pathlib.Path(bitcoind_dir).is_dir()
    
    
    Severity: Minor
    Found in noma/bitcoind.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

    Refactor this function to reduce its Cognitive Complexity from 54 to the 15 allowed.
    Open

    def fastsync():
    Severity: Critical
    Found in noma/bitcoind.py by sonar-python

    Cognitive Complexity is a measure of how hard the control flow of a function is to understand. Functions with high Cognitive Complexity will be difficult to maintain.

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