Class: Awsborn::Keychain

Inherits:
Object
  • Object
show all
Defined in:
lib/awsborn/keychain.rb

Instance Method Summary collapse

Constructor Details

#initialize(path = nil) ⇒ Keychain

Returns a new instance of Keychain.



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# File 'lib/awsborn/keychain.rb', line 3

def initialize (path = nil)
  @keychain = path
end

Instance Method Details

#decode_hex(hex_dump) ⇒ Object 



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# File 'lib/awsborn/keychain.rb', line 39

def decode_hex (hex_dump)
  text = ""
  0.step(hex_dump.size - 2, 2) { |i| text << hex_dump[i,2].hex.chr }
  text
end

#find_generic_password(name) ⇒ Object 



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# File 'lib/awsborn/keychain.rb', line 34

def find_generic_password (name)
  # -l for label, the editable field in a secure note (and 'name' for passwords)
  `security -q find-generic-password -l "#{name}" -g "#{@keychain}" 2>&1 1>/dev/null`
end

#get(name) ⇒ Object 



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# File 'lib/awsborn/keychain.rb', line 19

def get (name)
  unlock
  password_line = find_generic_password(name)
  if password_line.match(/^password: 0x/)
    hex_dump = password_line[/password: 0x(\S+)/, 1]
    text = decode_hex(hex_dump)
    text = string_content(text) if multi_encoded?(text)
  elsif password_line.match(/^password: "/)
    text = password_line[/password: "(.+)"/, 1]
  else
    raise "Note '#{name}' not found in #{@keychain}"
  end
  text
end

#lock ⇒ Object 



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# File 'lib/awsborn/keychain.rb', line 14

def lock
  system 'security', 'lock-keychain', @keychain
  @unlocked = false
end

#master_password ⇒ Object 



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# File 'lib/awsborn/keychain.rb', line 57

def master_password
  unless @password
    dump = `security -q find-generic-password -s "#{File.basename(@keychain)}" -g 2>&1`
    @password = dump[/password: "(.*)"/, 1]
  end
  @password
end

#multi_encoded?(note) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/awsborn/keychain.rb', line 45

def multi_encoded? (note)
  note.include?(%q(<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">))
end

#string_content(note) ⇒ Object 



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# File 'lib/awsborn/keychain.rb', line 49

def string_content (note)
  text = note[%r{<string>(.*)</string>}m,1]
  text.gsub!('&lt;','<')
  text.gsub!('&gt;','>')
  text.gsub!('&amp;','&')
  text
end

#unlock ⇒ Object 



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# File 'lib/awsborn/keychain.rb', line 7

def unlock
  unless @unlocked
    system 'security', 'unlock-keychain', '-p', master_password, @keychain
    @unlocked = true
  end
end