Vagrant NTFS user permision problem # file path /opt/vagrant/embedded/gems/gems/vagrant-1.4.2/lib/vagrant/util/ssh.rb
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require "log4r" | |
require 'childprocess' | |
require "vagrant/util/file_mode" | |
require "vagrant/util/platform" | |
require "vagrant/util/safe_exec" | |
require "vagrant/util/subprocess" | |
require "vagrant/util/which" | |
module Vagrant | |
module Util | |
# This is a class that has helpers on it for dealing with SSH. These | |
# helpers don't depend on any part of Vagrant except what is given | |
# via the parameters. | |
class SSH | |
LOGGER = Log4r::Logger.new("vagrant::util::ssh") | |
# Checks that the permissions for a private key are valid, and fixes | |
# them if possible. SSH requires that permissions on the private key | |
# are 0600 on POSIX based systems. This will make a best effort to | |
# fix these permissions if they are not properly set. | |
# | |
# @param [Pathname] key_path The path to the private key. | |
def self.check_key_permissions(key_path) | |
# Don't do anything if we're on Windows, since Windows doesn't worry | |
# about key permissions. | |
return if Platform.windows? | |
LOGGER.debug("Checking key permissions: #{key_path}") | |
stat = key_path.stat | |
# if !stat.owned? | |
# # The SSH key must be owned by ourselves | |
# raise Errors::SSHKeyBadOwner, :key_path => key_path | |
# end | |
# if FileMode.from_octal(stat.mode) != "600" | |
# LOGGER.info("Attempting to correct key permissions to 0600") | |
# key_path.chmod(0600) | |
# Re-stat the file to get the new mode, and verify it worked | |
# stat = key_path.stat | |
# if FileMode.from_octal(stat.mode) != "600" | |
# raise Errors::SSHKeyBadPermissions, :key_path => key_path | |
# end | |
# end | |
rescue Errno::EPERM | |
# This shouldn't happen since we verify we own the file, but | |
# it is possible in theory, so we raise an error. | |
raise Errors::SSHKeyBadPermissions, :key_path => key_path | |
end | |
# Halts the running of this process and replaces it with a full-fledged | |
# SSH shell into a remote machine. | |
# | |
# Note: This method NEVER returns. The process ends after this. | |
# | |
# @param [Hash] ssh_info This is the SSH information. For the keys | |
# required please see the documentation of {Machine#ssh_info}. | |
# @param [Hash] opts These are additional options that are supported | |
# by exec. | |
def self.exec(ssh_info, opts={}) | |
# Ensure the platform supports ssh. On Windows there are several programs which | |
# include ssh, notably git, mingw and cygwin, but make sure ssh is in the path! | |
ssh_path = Which.which("ssh") | |
if !ssh_path | |
if Platform.windows? | |
raise Errors::SSHUnavailableWindows, | |
:host => ssh_info[:host], | |
:port => ssh_info[:port], | |
:username => ssh_info[:username], | |
:key_path => ssh_info[:private_key_path].join(", ") | |
end | |
raise Errors::SSHUnavailable | |
end | |
# On Windows, we need to detect whether SSH is actually "plink" | |
# underneath the covers. In this case, we tell the user. | |
if Platform.windows? | |
r = Subprocess.execute(ssh_path) | |
if r.stdout.include?("PuTTY Link") | |
raise Errors::SSHIsPuttyLink, | |
:host => ssh_info[:host], | |
:port => ssh_info[:port], | |
:username => ssh_info[:username], | |
:key_path => ssh_info[:private_key_path].join(", ") | |
end | |
end | |
# If plain mode is enabled then we don't do any authentication (we don't | |
# set a user or an identity file) | |
plain_mode = opts[:plain_mode] | |
options = {} | |
options[:host] = ssh_info[:host] | |
options[:port] = ssh_info[:port] | |
options[:username] = ssh_info[:username] | |
options[:private_key_path] = ssh_info[:private_key_path] | |
# Command line options | |
command_options = [ | |
"-p", options[:port].to_s, | |
"-o", "Compression=yes", | |
"-o", "DSAAuthentication=yes", | |
"-o", "LogLevel=FATAL", | |
"-o", "StrictHostKeyChecking=no", | |
"-o", "UserKnownHostsFile=/dev/null"] | |
# Solaris/OpenSolaris/Illumos uses SunSSH which doesn't support the | |
# IdentitiesOnly option. Also, we don't enable it in plain mode so | |
# that SSH properly searches our identities and tries to do it itself. | |
if !Platform.solaris? && !plain_mode | |
command_options += ["-o", "IdentitiesOnly=yes"] | |
end | |
# If we're not in plain mode, attach the private key path. | |
if !plain_mode | |
options[:private_key_path].each do |path| | |
command_options += ["-i", path.to_s] | |
end | |
end | |
if ssh_info[:forward_x11] | |
# Both are required so that no warnings are shown regarding X11 | |
command_options += [ | |
"-o", "ForwardX11=yes", | |
"-o", "ForwardX11Trusted=yes"] | |
end | |
if ssh_info[:proxy_command] | |
command_options += ["-o", "ProxyCommand=#{ssh_info[:proxy_command]}"] | |
end | |
# Configurables -- extra_args should always be last due to the way the | |
# ssh args parser works. e.g. if the user wants to use the -t option, | |
# any shell command(s) she'd like to run on the remote server would | |
# have to be the last part of the 'ssh' command: | |
# | |
# $ ssh localhost -t -p 2222 "cd mydirectory; bash" | |
# | |
# Without having extra_args be last, the user loses this ability | |
command_options += ["-o", "ForwardAgent=yes"] if ssh_info[:forward_agent] | |
command_options.concat(opts[:extra_args]) if opts[:extra_args] | |
# Build up the host string for connecting | |
host_string = options[:host] | |
host_string = "#{options[:username]}@#{host_string}" if !plain_mode | |
command_options.unshift(host_string) | |
# On Cygwin we want to get rid of any DOS file warnings because | |
# we really don't care since both work. | |
ENV["nodosfilewarning"] = "1" if Platform.cygwin? | |
# Invoke SSH with all our options | |
if !opts[:subprocess] | |
LOGGER.info("Invoking SSH: #{command_options.inspect}") | |
SafeExec.exec("ssh", *command_options) | |
return | |
end | |
# If we're still here, it means we're supposed to subprocess | |
# out to ssh rather than exec it. | |
LOGGER.info("Executing SSH in subprocess: #{command_options.inspect}") | |
process = ChildProcess.build("ssh", *command_options) | |
process.io.inherit! | |
process.start | |
process.wait | |
return process.exit_code | |
end | |
end | |
end | |
end |
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