rapid7/metasploit-framework

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lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb

Summary

Maintainability
F
3 days
Test Coverage

Method download has a Cognitive Complexity of 79 (exceeds 5 allowed). Consider refactoring.
Open

  def Dir.download(dst, src, opts = {}, force = true, glob = nil, &stat)
    src.force_encoding('UTF-8')
    dst.force_encoding('UTF-8')
    tries_cnt = 0

Severity: Minor
Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb - 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

Method upload has a Cognitive Complexity of 27 (exceeds 5 allowed). Consider refactoring.
Open

  def Dir.upload(dst, src, recursive = false, &stat)
    ::Dir.entries(src).each { |src_sub|
      dst_item = dst + client.fs.file.separator + client.unicode_filter_encode(src_sub)
      src_item = src + ::File::SEPARATOR + client.unicode_filter_encode(src_sub)

Severity: Minor
Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb - 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

Method download has 75 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def Dir.download(dst, src, opts = {}, force = true, glob = nil, &stat)
    src.force_encoding('UTF-8')
    dst.force_encoding('UTF-8')
    tries_cnt = 0

Severity: Major
Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb - About 3 hrs to fix

    Method match has a Cognitive Complexity of 20 (exceeds 5 allowed). Consider refactoring.
    Open

      def Dir.match(name, match_dir = false)
        path  = name + '*'
        files = []
        sbuf = nil
        new_stat_buf = true
    Severity: Minor
    Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb - 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

    File dir.rb has 254 lines of code (exceeds 250 allowed). Consider refactoring.
    Open

    require 'rex/post/dir'
    require 'rex/post/meterpreter/extensions/stdapi/stdapi'
    
    module Rex
    module Post
    Severity: Minor
    Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb - About 2 hrs to fix

      Method entries_with_info has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.
      Open

        def Dir.entries_with_info(name = getwd)
          request = Packet.create_request(COMMAND_ID_STDAPI_FS_LS)
          files = []
          sbuf = nil
          new_stat_buf = true
      Severity: Minor
      Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb - 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

      Method match has 38 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

        def Dir.match(name, match_dir = false)
          path  = name + '*'
          files = []
          sbuf = nil
          new_stat_buf = true
      Severity: Minor
      Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb - About 1 hr to fix

        Method entries_with_info has 37 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

          def Dir.entries_with_info(name = getwd)
            request = Packet.create_request(COMMAND_ID_STDAPI_FS_LS)
            files = []
            sbuf = nil
            new_stat_buf = true
        Severity: Minor
        Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb - About 1 hr to fix

          Method download has 6 arguments (exceeds 4 allowed). Consider refactoring.
          Open

            def Dir.download(dst, src, opts = {}, force = true, glob = nil, &stat)
          Severity: Minor
          Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb - About 45 mins to fix

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

                rescue Rex::TimeoutError
                  if (tries && (tries_no == 0 || tries_cnt < tries_no))
                    tries_cnt += 1
                    stat.call('error listing  - retry #', tries_cnt, src) if (stat)
                    retry
            Severity: Minor
            Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb and 1 other location - About 35 mins to fix
            lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb on lines 306..314

            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 36.

            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

                  rescue Rex::TimeoutError
                    if (tries && (tries_no == 0 || tries_cnt < tries_no))
                      tries_cnt += 1
                      stat.call('error opening file - retry #', tries_cnt, src_item) if (stat)
                      retry
            Severity: Minor
            Found in lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb and 1 other location - About 35 mins to fix
            lib/rex/post/meterpreter/extensions/stdapi/fs/dir.rb on lines 279..287

            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 36.

            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

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