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Module: Kward::Sandbox::RunnerFactory

Defined in:
lib/kward/sandbox/runner_factory.rb

Overview

Selects the command runner that can enforce a policy on the current host.

Class Method Summary collapse

Class Method Details

.build(policy, platform: RUBY_PLATFORM) ⇒ Object 



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# File 'lib/kward/sandbox/runner_factory.rb', line 14

def build(policy, platform: RUBY_PLATFORM)
  return PassthroughRunner.new(policy:, capabilities: off_capabilities) unless policy.enabled?

  runner_class = runner_class_for(platform)
  return UnavailableRunner.new(policy:, capabilities: unsupported_capabilities(platform)) unless runner_class

  capabilities = runner_class.capabilities(platform:)
  return UnavailableRunner.new(policy:, capabilities:) unless capabilities.available?

  runner_class.new(policy:, capabilities:)
end

.off_capabilities ⇒ Object 



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# File 'lib/kward/sandbox/runner_factory.rb', line 26

def off_capabilities
  Capabilities.new(
    available: true,
    filesystem_enforced: false,
    child_network_enforced: false,
    backend: "off"
  )
end

.unsupported_capabilities(platform) ⇒ Object 



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# File 'lib/kward/sandbox/runner_factory.rb', line 35

def unsupported_capabilities(platform)
  Capabilities.new(
    available: false,
    filesystem_enforced: false,
    child_network_enforced: false,
    backend: "unsupported",
    reason: "Sandboxing is unsupported on #{platform}"
  )
end