Class: Inspec::Resources::WindowsPkg

Inherits:
PkgManagement show all
Defined in:
lib/inspec/resources/package.rb

Overview

Determines the installed packages on Windows using the Windows package registry entries. @see: http://blogs.technet.com/b/heyscriptingguy/archive/2013/11/15/use-powershell-to-find-installed-software.aspx

Instance Attribute Summary

Attributes inherited from PkgManagement

#inspec

Instance Method Summary collapse

Methods inherited from PkgManagement

#initialize, #missing_requirements

Constructor Details

This class inherits a constructor from Inspec::Resources::PkgManagement

Instance Method Details

#info(package_name) ⇒ Object 



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# File 'lib/inspec/resources/package.rb', line 373

def info(package_name)
  search_paths = [
    'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*',
    'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*',
  ]

  # Add WOW6432Node paths for 32-bit apps on 64-bit Windows.
  # Include these unless the system is explicitly 32-bit (i386) — on 32-bit
  # Windows, WOW6432Node does not exist since all apps register under the
  # main Uninstall key.
  # When os.arch is nil (e.g., train falls back to read_cmd_os in a PowerShell
  # WinRM session where %PROCESSOR_ARCHITECTURE% is not expanded), we still
  # include the WOW6432Node paths since virtually all modern Windows systems
  # are 64-bit.
  unless inspec.os.arch == "i386"
    search_paths << 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*'
    search_paths << 'HKCU:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*'
  end

  # Find the package
  cmd = inspec.command "    Get-ItemProperty (@(\"\#{search_paths.join('\", \"')}\") | Where-Object { Test-Path $_ }) |\n    Where-Object { $_.DisplayName -like \"\#{package_name}\" -or $_.PSChildName -like \"\#{package_name}\" } |\n    Select-Object -Property DisplayName,DisplayVersion | ConvertTo-Json\n  EOF\n\n  # We cannot rely on `exit_status` since PowerShell always exits 0 from the\n  # above command. Instead, if no package is found the output of the command\n  # will be `''` so we can use that to return `{}` to match the behavior of\n  # other package managers.\n  return {} if cmd.stdout == \"\"\n\n  begin\n    package = JSON.parse(cmd.stdout)\n  rescue JSON::ParserError => e\n    raise Inspec::Exceptions::ResourceFailed,\n          \"Failed to parse JSON from PowerShell. Error: \#{e}\"\n  end\n\n  # What if we match multiple packages?  just pick the first one for now.\n  package = package[0] if package.is_a?(Array)\n\n  {\n    name: package[\"DisplayName\"],\n    installed: true,\n    version: package[\"DisplayVersion\"],\n    type: \"windows\",\n    only_version_no: package[\"DisplayVersion\"],\n  }\nend\n".gsub(/^\s*/, "")

#latest_version(package_name) ⇒ Object 



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# File 'lib/inspec/resources/package.rb', line 424

def latest_version(package_name)
  cmd_string = "Get-Package #{package_name} -AllVersions"
  fetch_latest_version(cmd_string)
end