hirura/hrr_rb_ssh

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lib/hrr_rb_ssh/connection.rb

Summary

Maintainability
C
1 day
Test Coverage

File connection.rb has 288 lines of code (exceeds 250 allowed). Consider refactoring.
Open

require 'hrr_rb_ssh/error/closed_connection'
require 'hrr_rb_ssh/connection/global_request_handler'
require 'hrr_rb_ssh/connection/channel'

module HrrRbSsh
Severity: Minor
Found in lib/hrr_rb_ssh/connection.rb - About 2 hrs to fix

    Class Connection has 24 methods (exceeds 20 allowed). Consider refactoring.
    Open

      class Connection
        include Loggable
    
        attr_reader \
          :username,
    Severity: Minor
    Found in lib/hrr_rb_ssh/connection.rb - About 2 hrs to fix

      Method connection_loop_thread has 43 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

          def connection_loop_thread
            log_info { "start connection loop" }
            Thread.new do
              begin
                while true
      Severity: Minor
      Found in lib/hrr_rb_ssh/connection.rb - About 1 hr to fix

        Method connection_loop_thread has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
        Open

            def connection_loop_thread
              log_info { "start connection loop" }
              Thread.new do
                begin
                  while true
        Severity: Minor
        Found in lib/hrr_rb_ssh/connection.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

        Similar blocks of code found in 5 locations. Consider refactoring.
        Open

            def channel_extended_data payload
              log_info { 'received ' + Messages::SSH_MSG_CHANNEL_EXTENDED_DATA::ID }
              message = Messages::SSH_MSG_CHANNEL_EXTENDED_DATA.new(logger: logger).decode payload
              local_channel = message[:'recipient channel']
              @channels[local_channel].receive_message_queue.enq message if @channels.has_key? local_channel
        Severity: Major
        Found in lib/hrr_rb_ssh/connection.rb and 4 other locations - About 30 mins to fix
        lib/hrr_rb_ssh/connection.rb on lines 219..223
        lib/hrr_rb_ssh/connection.rb on lines 226..230
        lib/hrr_rb_ssh/connection.rb on lines 233..237
        lib/hrr_rb_ssh/connection.rb on lines 247..251

        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 32.

        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 5 locations. Consider refactoring.
        Open

            def channel_eof payload
              log_info { 'received ' + Messages::SSH_MSG_CHANNEL_EOF::ID }
              message = Messages::SSH_MSG_CHANNEL_EOF.new(logger: logger).decode payload
              local_channel = message[:'recipient channel']
              @channels[local_channel].receive_message_queue.enq message if @channels.has_key? local_channel
        Severity: Major
        Found in lib/hrr_rb_ssh/connection.rb and 4 other locations - About 30 mins to fix
        lib/hrr_rb_ssh/connection.rb on lines 219..223
        lib/hrr_rb_ssh/connection.rb on lines 226..230
        lib/hrr_rb_ssh/connection.rb on lines 233..237
        lib/hrr_rb_ssh/connection.rb on lines 240..244

        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 32.

        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 5 locations. Consider refactoring.
        Open

            def channel_data payload
              log_info { 'received ' + Messages::SSH_MSG_CHANNEL_DATA::ID }
              message = Messages::SSH_MSG_CHANNEL_DATA.new(logger: logger).decode payload
              local_channel = message[:'recipient channel']
              @channels[local_channel].receive_message_queue.enq message if @channels.has_key? local_channel
        Severity: Major
        Found in lib/hrr_rb_ssh/connection.rb and 4 other locations - About 30 mins to fix
        lib/hrr_rb_ssh/connection.rb on lines 219..223
        lib/hrr_rb_ssh/connection.rb on lines 226..230
        lib/hrr_rb_ssh/connection.rb on lines 240..244
        lib/hrr_rb_ssh/connection.rb on lines 247..251

        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 32.

        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 5 locations. Consider refactoring.
        Open

            def channel_window_adjust payload
              log_info { 'received ' + Messages::SSH_MSG_CHANNEL_WINDOW_ADJUST::ID }
              message = Messages::SSH_MSG_CHANNEL_WINDOW_ADJUST.new(logger: logger).decode payload
              local_channel = message[:'recipient channel']
              @channels[local_channel].receive_message_queue.enq message if @channels.has_key? local_channel
        Severity: Major
        Found in lib/hrr_rb_ssh/connection.rb and 4 other locations - About 30 mins to fix
        lib/hrr_rb_ssh/connection.rb on lines 219..223
        lib/hrr_rb_ssh/connection.rb on lines 233..237
        lib/hrr_rb_ssh/connection.rb on lines 240..244
        lib/hrr_rb_ssh/connection.rb on lines 247..251

        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 32.

        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 5 locations. Consider refactoring.
        Open

            def channel_request payload
              log_info { 'received ' + Messages::SSH_MSG_CHANNEL_REQUEST::ID }
              message = Messages::SSH_MSG_CHANNEL_REQUEST.new(logger: logger).decode payload
              local_channel = message[:'recipient channel']
              @channels[local_channel].receive_message_queue.enq message if @channels.has_key? local_channel
        Severity: Major
        Found in lib/hrr_rb_ssh/connection.rb and 4 other locations - About 30 mins to fix
        lib/hrr_rb_ssh/connection.rb on lines 226..230
        lib/hrr_rb_ssh/connection.rb on lines 233..237
        lib/hrr_rb_ssh/connection.rb on lines 240..244
        lib/hrr_rb_ssh/connection.rb on lines 247..251

        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 32.

        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

                begin
                  channel.close
                rescue => e
                  log_error { [e.backtrace[0], ": ", e.message, " (", e.class.to_s, ")\n\t", e.backtrace[1..-1].join("\n\t")].join }
                end
        Severity: Minor
        Found in lib/hrr_rb_ssh/connection.rb and 1 other location - About 25 mins to fix
        lib/hrr_rb_ssh/client.rb on lines 113..117

        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 29.

        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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