Class: Rex::Ui::Text::Table

Inherits:
Object
  • Object
show all
Defined in:
lib/rex/ui/text/table.rb

Overview

Prints text in a tablized format. Pretty lame at the moment, but whatever.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts = {}) ⇒ Table

Initializes a text table instance using the supplied properties. The Table class supports the following hash attributes:

Header

The string to display as a heading above the table. If none is specified, no header will be displayed.

HeaderIndent

The amount of space to indent the header. The default is zero.

Columns

The array of columns that will exist within the table.

Rows

The array of rows that will exist.

Width

The maximum width of the table in characters.

Indent

The number of characters to indent the table.

CellPad

The number of characters to put between each horizontal cell.

Prefix

The text to prefix before the table.

Postfix

The text to affix to the end of the table.

Sortindex

The column to sort the table on, -1 disables sorting.



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# File 'lib/rex/ui/text/table.rb', line 62

def initialize(opts = {})
  self.header   = opts['Header']
  self.headeri  = opts['HeaderIndent'] || 0
  self.columns  = opts['Columns'] || []
  # updated below if we got a "Rows" option
  self.rows     = []

  self.width    = opts['Width']   || 80
  self.indent   = opts['Indent']  || 0
  self.cellpad  = opts['CellPad'] || 2
  self.prefix   = opts['Prefix']  || ''
  self.postfix  = opts['Postfix'] || ''
  self.colprops = []

  self.sort_index  = opts['SortIndex'] || 0

  # Default column properties
  self.columns.length.times { |idx|
    self.colprops[idx] = {}
    self.colprops[idx]['MaxWidth'] = self.columns[idx].length
  }

  # ensure all our internal state gets updated with the given rows by
  # using add_row instead of just adding them to self.rows.  See #3825.
  opts['Rows'].each { |row| add_row(row) } if opts['Rows']

  # Merge in options
  if (opts['ColProps'])
    opts['ColProps'].each_key { |col|
      idx = self.columns.index(col)

      if (idx)
        self.colprops[idx].merge!(opts['ColProps'][col])
      end
    }
  end

end

Instance Attribute Details

#cellpad ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 244

def cellpad
  @cellpad
end

#colprops ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 243

def colprops
  @colprops
end

#columns ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 243

def columns
  @columns
end

#header ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 242

def header
  @header
end

#headeri ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 242

def headeri
  @headeri
end

#indent ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 244

def indent
  @indent
end

#postfix ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 245

def postfix
  @postfix
end

#prefix ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 245

def prefix
  @prefix
end

#rows ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 243

def rows
  @rows
end

#sort_index ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 246

def sort_index
  @sort_index
end

#width ⇒ Object

:nodoc:



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# File 'lib/rex/ui/text/table.rb', line 244

def width
  @width
end

Instance Method Details

#<<(fields) ⇒ Object

Adds a row using the supplied fields.



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# File 'lib/rex/ui/text/table.rb', line 165

def <<(fields)
  add_row(fields)
end

#[](*col_names) ⇒ Object

Returns new sub-table with headers and rows maching column names submitted



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# File 'lib/rex/ui/text/table.rb', line 218

def [](*col_names)
  tbl = self.class.new('Indent' => self.indent,
                       'Header' => self.header,
                       'Columns' => col_names)
  indexes = []

  col_names.each do |col_name|
    index = self.columns.index(col_name)
    raise RuntimeError, "Invalid column name #{col_name}" if index.nil?
    indexes << index
  end

  self.rows.each do |old_row|
    new_row = []
    indexes.map {|i| new_row << old_row[i]}
    tbl << new_row
  end

  return tbl
end

#add_hr ⇒ Object

Adds a horizontal line.



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# File 'lib/rex/ui/text/table.rb', line 211

def add_hr
  rows << '__hr__'
end

#add_row(fields = []) ⇒ Object

Adds a row with the supplied fields.



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# File 'lib/rex/ui/text/table.rb', line 172

def add_row(fields = [])
  if fields.length != self.columns.length
    raise RuntimeError, 'Invalid number of columns!'
  end
  fields.each_with_index { |field, idx|
    if (colprops[idx]['MaxWidth'] < field.to_s.length)
      colprops[idx]['MaxWidth'] = field.to_s.length
    end
  }

  rows << fields
end

#header_to_s ⇒ Object

Returns the header string.



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# File 'lib/rex/ui/text/table.rb', line 145

def header_to_s # :nodoc:
  if (header)
    pad = " " * headeri

    return pad + header + "\n" + pad + "=" * header.length + "\n\n"
  end

  return ''
end

#print ⇒ Object Also known as: p

Prints the contents of the table.



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# File 'lib/rex/ui/text/table.rb', line 158

def print
  puts to_s
end

#sort_rows(index = sort_index) ⇒ Object

Sorts the rows based on the supplied index of sub-arrays If the supplied index is an IPv4 address, handle it differently, but avoid actually resolving domain names.



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# File 'lib/rex/ui/text/table.rb', line 190

def sort_rows(index=sort_index)
  return if index == -1
  return unless rows
  rows.sort! do |a,b|
    if a[index].nil?
      -1
    elsif b[index].nil?
      1
    elsif Rex::Socket.dotted_ip?(a[index]) and Rex::Socket.dotted_ip?(b[index])
      Rex::Socket::addr_atoi(a[index]) <=> Rex::Socket::addr_atoi(b[index])
    elsif a[index] =~ /^[0-9]+$/ and b[index] =~ /^[0-9]+$/
      a[index].to_i <=> b[index].to_i
    else
      a[index] <=> b[index] # assumes otherwise comparable.
    end
  end
end

#to_csv ⇒ Object

Converts table contents to a csv



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# File 'lib/rex/ui/text/table.rb', line 127

def to_csv
  str = ''
  str << ( columns.join(",") + "\n" )
  rows.each { |row|
    next if is_hr(row)
    str << ( row.map{|x|
      x = x.to_s

      x.gsub(/[\r\n]/, ' ').gsub(/\s+/, ' ').gsub('"', '""')
    }.map{|x| "\"#{x}\"" }.join(",") + "\n" )
  }
  str
end

#to_s ⇒ Object

Converts table contents to a string.



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# File 'lib/rex/ui/text/table.rb', line 104

def to_s
  str  = prefix.dup
  str << header_to_s || ''
  str << columns_to_s || ''
  str << hr_to_s || ''

  sort_rows
  rows.each { |row|
    if (is_hr(row))
      str << hr_to_s
    else
      str << row_to_s(row)
    end
  }

  str << postfix

  return str
end