mirror of
https://github.com/urbanadventurer/WhatWeb
synced 2026-06-21 14:12:19 +00:00
Andrew Horton
121 lines
3.6 KiB
Ruby
121 lines
3.6 KiB
Ruby
# Copyright 2009 to 2025 Andrew Horton and Brendan Coles
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#
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# This file is part of WhatWeb.
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#
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# WhatWeb is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# at your option) any later version.
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#
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# WhatWeb is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with WhatWeb. If not, see <http://www.gnu.org/licenses/>.
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class Logging
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include Helper
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# if no f, output to STDOUT,
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# if f is a filename then open it, if f is a file use it
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def initialize(f = STDOUT, sync: nil)
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f = STDOUT if f == '-'
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@f = f if f.class == IO || f.class == File
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@f = File.open(f, 'a') if f.class == String
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# Make sync configurable with smart defaults
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# Default to sync for low thread counts, async for high thread counts
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if sync.nil?
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@f.sync = ($THREADS && $THREADS <= 5) ? true : false
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else
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@f.sync = sync
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end
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# Per-instance mutex for thread-safe output
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@mutex = Mutex.new
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# Output buffering for performance
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@buffer = []
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@buffer_size = $OUTPUT_BUFFER_SIZE || 1
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@last_flush = Time.now
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# Ensure buffer size is at least 1
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@buffer_size = 1 if @buffer_size < 1
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end
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def close
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flush_buffer # Ensure all buffered output is written
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@f.close unless @f.class == IO
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end
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# Thread-safe output method using per-instance mutex
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def synchronized_write(&block)
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@mutex.synchronize(&block)
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end
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# Buffered output method for improved performance
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def buffered_write(content)
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@mutex.synchronize do
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@buffer << content
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# Flush buffer if it's full, in sync mode, or buffer is getting stale
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should_flush = @buffer.size >= @buffer_size ||
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@f.sync ||
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(Time.now - @last_flush > 5.0 && !@buffer.empty?)
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if should_flush
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flush_buffer_unsafe
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end
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end
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end
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# Force flush the buffer (thread-safe)
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def flush_buffer
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@mutex.synchronize do
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flush_buffer_unsafe
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end
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end
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private
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# Flush buffer without mutex (must be called within synchronized block)
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def flush_buffer_unsafe
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return if @buffer.empty?
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# Join all buffered content with newlines and write as one block
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combined_output = @buffer.join("\n")
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@f.puts combined_output
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@buffer.clear
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@last_flush = Time.now
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end
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# perform sort, uniq and join on each plugin result
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def suj(plugin_results)
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suj = {}
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[:certainty, :version, :os, :string, :account, :model, :firmware, :module, :filepath].map do |thissymbol|
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t = plugin_results.map { |x| x[thissymbol] unless x[thissymbol].class == Regexp }.flatten.compact.sort.uniq.join(',')
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suj[thissymbol] = t
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end
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suj[:certainty] = plugin_results.map { |x| x[:certainty] }.flatten.compact.sort.last.to_i # this is different, it's a number
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suj
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end
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# sort and uniq but no join. just for one plugin result
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def sortuniq(p)
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su = {}
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[:name, :certainty, :version, :os, :string, :account, :model, :firmware, :module, :filepath].map do |thissymbol|
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next if p[thissymbol].class == Regexp
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t = p[thissymbol]
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t = t.flatten.compact.sort.uniq if t.is_a?(Array)
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su[thissymbol] = t unless t.nil?
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end
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# certainty is different, it's a number
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su[:certainty] = p[:certainty].to_i
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su
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end
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end
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