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# File 'lib/chef/knife/winrm_knife_base.rb', line 28
def self.included(includer)
includer.class_eval do
@@ssl_warning_given = false
include Chef::Knife::WinrmBase
include Chef::Knife::WinrmSharedOptions
include Chef::Knife::KnifeWindowsBase
def validate_winrm_options!
winrm_auth_protocol = locate_config_value(:winrm_authentication_protocol)
if ! Chef::Knife::WinrmBase::WINRM_AUTH_PROTOCOL_LIST.include?(winrm_auth_protocol)
ui.error "Invalid value '#{winrm_auth_protocol}' for --winrm-authentication-protocol option."
ui.info "Valid values are #{Chef::Knife::WinrmBase::WINRM_AUTH_PROTOCOL_LIST.join(",")}."
exit 1
end
if negotiate_auth? && !Chef::Platform.windows? && !(locate_config_value(:winrm_transport) == 'ssl')
ui.warn <<-eos.gsub /^\s+/, ""
You are using '--winrm-authentication-protocol negotiate' with
'--winrm-transport plaintext' on a non-Windows system which results in
unencrypted traffic. To avoid this warning and secure communication,
use '--winrm-transport ssl' instead of the plaintext transport,
or execute this command from a Windows system which enables encrypted
communication over plaintext with the negotiate authentication protocol.
eos
end
warn_no_ssl_peer_verification if resolve_no_ssl_peer_verification
end
def configure_session
validate_winrm_options!
resolve_session_options
resolve_target_nodes
session_from_list
end
def resolve_target_nodes
@list = case config[:manual]
when true
@name_args[0].split(" ")
when false
r = Array.new
q = Chef::Search::Query.new
@action_nodes = q.search(:node, @name_args[0])[0]
@action_nodes.each do |item|
i = (item, config[:attribute])
r.push(i) unless i.nil?
end
r
end
if @list.length == 0
if @action_nodes.length == 0
ui.fatal("No nodes returned from search!")
else
ui.fatal("#{@action_nodes.length} #{@action_nodes.length > 1 ? "nodes":"node"} found, " +
"but does not have the required attribute (#{config[:attribute]}) to establish the connection. " +
"Try setting another attribute to open the connection using --attribute.")
end
exit 10
end
end
def validate_password
if @session_opts[:user] and (not @session_opts[:password])
@session_opts[:password] = Chef::Config[:knife][:winrm_password] = config[:winrm_password] = get_password
end
end
private
def session_from_list
@list.each do |item|
Chef::Log.debug("Adding #{item}")
@session_opts[:host] = item
create_winrm_session(@session_opts)
end
end
def create_winrm_session(options={})
session = Chef::Knife::WinrmSession.new(options)
@winrm_sessions ||= []
@winrm_sessions.push(session)
end
def resolve_session_options
@session_opts = {
user: resolve_winrm_user,
password: locate_config_value(:winrm_password),
port: locate_config_value(:winrm_port),
operation_timeout: resolve_winrm_session_timeout,
basic_auth_only: resolve_winrm_basic_auth,
disable_sspi: resolve_winrm_disable_sspi,
transport: resolve_winrm_transport,
no_ssl_peer_verification: resolve_no_ssl_peer_verification
}
if @session_opts[:transport] == :kerberos
@session_opts.merge!(resolve_winrm_kerberos_options)
end
@session_opts[:ca_trust_path] = locate_config_value(:ca_trust_file) if locate_config_value(:ca_trust_file)
end
def resolve_winrm_user
user = locate_config_value(:winrm_user)
if resolve_winrm_basic_auth ||
resolve_winrm_transport == :kerberos ||
user.include?("\\") ||
user.include?("@")
user
else
".\\#{user}"
end
end
def resolve_winrm_session_timeout
locate_config_value(:session_timeout).to_i * 60 if locate_config_value(:session_timeout)
end
def resolve_winrm_basic_auth
locate_config_value(:winrm_authentication_protocol) == "basic"
end
def resolve_winrm_kerberos_options
kerberos_opts = {}
kerberos_opts[:keytab] = locate_config_value(:kerberos_keytab_file) if locate_config_value(:kerberos_keytab_file)
kerberos_opts[:realm] = locate_config_value(:kerberos_realm) if locate_config_value(:kerberos_realm)
kerberos_opts[:service] = locate_config_value(:kerberos_service) if locate_config_value(:kerberos_service)
kerberos_opts
end
def resolve_winrm_transport
transport = locate_config_value(:winrm_transport).to_sym
if config.any? {|k,v| k.to_s =~ /kerberos/ && !v.nil? }
transport = :kerberos
elsif Chef::Platform.windows? && transport != :ssl && negotiate_auth?
transport = :sspinegotiate
end
transport
end
def resolve_no_ssl_peer_verification
locate_config_value(:ca_trust_file).nil? && config[:winrm_ssl_verify_mode] == :verify_none && resolve_winrm_transport == :ssl
end
def resolve_winrm_disable_sspi
!Chef::Platform.windows? || resolve_winrm_transport == :ssl || !negotiate_auth?
end
def get_password
@password ||= ui.ask("Enter your password: ") { |q| q.echo = false }
end
def negotiate_auth?
locate_config_value(:winrm_authentication_protocol) == "negotiate"
end
def warn_no_ssl_peer_verification
if ! @@ssl_warning_given
@@ssl_warning_given = true
ui.warn(<<-WARN)
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
SSL validation of HTTPS requests for the WinRM transport is disabled. HTTPS WinRM
connections are still encrypted, but knife is not able to detect forged replies
or spoofing attacks.
To fix this issue add an entry like this to your knife configuration file:
```
# Verify all WinRM HTTPS connections (default, recommended)
knife[:winrm_ssl_verify_mode] = :verify_peer
```
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
WARN
end
end
end
end
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