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fog--fog/lib/fog/core/ssh.rb
geemus 40cd1ff5e4 fixes for reset_data
instance method now, instead of class method
resets data related to current connection/credentials
2011-03-10 11:16:55 -08:00

116 lines
2.9 KiB
Ruby

module Fog
module SSH
def self.new(address, username, options = {})
if Fog.mocking?
Fog::SSH::Mock.new(address, username, options)
else
Fog::SSH::Real.new(address, username, options)
end
end
class Mock
def self.data
@data ||= Hash.new do |hash, key|
hash[key] = {}
end
end
def initialize(address, username, options)
@address = address
@username = username
@options = options
end
def run(commands)
Fog::Mock.not_implemented
end
end
class Real
def initialize(address, username, options)
require 'net/ssh'
key_manager = Net::SSH::Authentication::KeyManager.new(nil, options)
unless options[:key_data] || options[:keys] || options[:password] || key_manager.agent
raise ArgumentError.new(':key_data, :keys, :password or a loaded ssh-agent is required to initialize SSH')
end
@address = address
@username = username
@options = { :paranoid => false }.merge(options)
end
def run(commands)
commands = [*commands]
results = []
begin
Net::SSH.start(@address, @username, @options) do |ssh|
commands.each do |command|
escaped_command = command.sub(/'/, %{'"'"'})
result = Result.new(escaped_command)
ssh.open_channel do |ssh_channel|
ssh_channel.request_pty
ssh_channel.exec(%{bash -lc '#{escaped_command}'}) do |channel, success|
unless success
raise "Could not execute command: #{command.inspect}"
end
channel.on_data do |ch, data|
result.stdout << data
end
channel.on_extended_data do |ch, type, data|
next unless type == 1
result.stderr << data
end
channel.on_request('exit-status') do |ch, data|
result.status = data.read_long
end
channel.on_request('exit-signal') do |ch, data|
result.status = 255
end
end
end
ssh.loop
results << result
end
end
rescue Net::SSH::HostKeyMismatch => exception
exception.remember_host!
sleep 0.2
retry
end
results
end
end
class Result
attr_accessor :command, :stderr, :stdout, :status
def display_stdout
Formatador.display_line(stdout.split("\r\n"))
end
def display_stderr
Formatador.display_line(stderr.split("\r\n"))
end
def initialize(command)
@command = command
@stderr = ''
@stdout = ''
end
end
end
end