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require 'ostruct'
module SSHKit
UnparsableHostStringError = Class.new(SSHKit::StandardError)
class Host
attr_accessor :password, :hostname, :port, :user, :ssh_options
def key=(new_key)
@keys = [new_key]
end
def keys=(new_keys)
@keys = new_keys
end
def keys
Array(@keys)
end
def initialize(host_string_or_options_hash)
@keys = []
@local = false
if host_string_or_options_hash == :local
@local = true
@hostname = "localhost"
@user = ENV['USER'] || ENV['LOGNAME'] || ENV['USERNAME']
elsif !host_string_or_options_hash.is_a?(Hash)
@user, @hostname, @port = first_suitable_parser(host_string_or_options_hash).attributes
else
host_string_or_options_hash.each do |key, value|
if self.respond_to?("#{key}=")
send("#{key}=", value)
else
raise ArgumentError, "Unknown host property #{key}"
end
end
end
end
def local?
@local
end
def hash
user.hash ^ hostname.hash ^ port.hash
end
def username
user
end
def eql?(other_host)
other_host.hash == hash
end
alias :== :eql?
alias :equal? :eql?
def to_s
hostname
end
def netssh_options
{}.tap do |sho|
sho[:keys] = keys if keys.any?
sho[:port] = port if port
sho[:user] = user if user
sho[:password] = password if password
sho[:forward_agent] = true
end
.merge(ssh_options || {})
end
def properties
@properties ||= OpenStruct.new
end
def first_suitable_parser(host)
parser = PARSERS.find{|p| p.suitable?(host) }
fail UnparsableHostStringError, "Cannot parse host string #{host}" if parser.nil?
parser.new(host)
end
end
# @private
# :nodoc:
class SimpleHostParser
def self.suitable?(host_string)
!host_string.match(/:|@/)
end
def initialize(host_string)
@host_string = host_string
end
def username
end
def port
end
def hostname
@host_string
end
def attributes
[username, hostname, port]
end
end
class HostWithPortParser < SimpleHostParser
def self.suitable?(host_string)
!host_string.match(/@|\[|\]/)
end
def port
@host_string.split(':').last.to_i
end
def hostname
@host_string.split(':').first
end
end
# @private
# :nodoc:
class HostWithUsernameAndPortParser < SimpleHostParser
def self.suitable?(host_string)
host_string.match(/@.*:\d+/)
end
def username
@host_string.split(/:|@/)[0]
end
def hostname
@host_string.split(/:|@/)[1]
end
def port
@host_string.split(/:|@/)[2].to_i
end
end
# @private
# :nodoc:
class IPv6HostWithPortParser < SimpleHostParser
IPV6_REGEX = /\[([a-fA-F0-9:]+)\](?:\:(\d+))?/
def self.suitable?(host_string)
host_string.match(IPV6_REGEX)
end
def port
prt = @host_string.match(IPV6_REGEX)[2]
prt = prt.to_i unless prt.nil?
prt
end
def hostname
@host_string.match(IPV6_REGEX)[1]
end
end
# @private
# :nodoc:
class HostWithUsernameParser < SimpleHostParser
def self.suitable?(host_string)
host_string.match(/@/) && !host_string.match(/\:/)
end
def username
@host_string.split('@').first
end
def hostname
@host_string.split('@').last
end
end
PARSERS = [
SimpleHostParser,
HostWithPortParser,
HostWithUsernameAndPortParser,
IPv6HostWithPortParser,
HostWithUsernameParser,
].freeze
end
|
