Module: PWN::Cron

Defined in:
lib/pwn/cron.rb

Overview

PWN::Cron provides cron / scheduled task management for the pwn-ai agent. Jobs are defined in ~/.pwn/cron/jobs.yml and can be triggered by system cron, manual run, or from within pwn-ai agent loops.

Each job can contain a prompt (for pwn-ai), a ruby script snippet, or reference to external script. Delivery can be 'log' (default), 'email', etc. (email would require additional plugins).

Constant Summary collapse

CRON_DIR = 
if ENV['PWN_CRON_DIR'].to_s.strip.empty?
  File.join(Dir.home, '.pwn', 'cron')
else
  ENV.fetch('PWN_CRON_DIR', nil)
end
JOBS_FILE = 
File.join(CRON_DIR, 'jobs.yml')
DEFAULT_JOBS =
Supported Method Parameters

PWN::Cron.install_defaults

Idempotently seed the RL feedback-loop cron jobs so a fresh install closes the loop by default (S1 practice + P3 offline_judge + W2 train dry-run + M1 consolidate). Re-running is a no-op if jobs with these names already exist. These are seeded to jobs.yml only — pass install_crontab: true to PWN::Cron.create yourself if you also want a system crontab entry.

[
  {
    name: 'curriculum_practice_nightly',
    schedule: '0 3 * * *',
    ruby: 'PWN::AI::Agent::Curriculum.practice(limit: 3) if defined?(PWN::AI::Agent::Curriculum)'
  },
  {
    name: 'curriculum_train_weekly',
    schedule: '0 4 * * 0',
    ruby: 'PWN::AI::Agent::Curriculum.train_and_gate(dry_run: true) if defined?(PWN::AI::Agent::Curriculum)'
  },
  {
    name: 'curriculum_offline_judge',
    schedule: '30 3 * * *',
    ruby: 'PWN::AI::Agent::Curriculum.offline_judge(since_hours: 24, limit: 40) if defined?(PWN::AI::Agent::Curriculum)',
    aliases: %w[offline_judge_nightly]
  },
  {
    name: 'learning_consolidate_nightly',
    schedule: '0 5 * * *',
    ruby: 'PWN::AI::Agent::Learning.consolidate if defined?(PWN::AI::Agent::Learning)'
  }
].freeze
DEFAULT_INTERVAL =

In-process scheduler. System crontab is optional (install_crontab) and install_defaults never writes it, so last_run only moves when something ticks jobs.yml. The worker is that something: poll once or loop, fire due enabled jobs via PWN::Cron.run, and stay alive behind a pidfile so pwn setup can start / restart it.

Spawned workers honor PWN_CRON_DIR so tests can sandbox the daemon without touching the operator's real ~/.pwn/cron.

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DEFAULT_LOCK_STALE = 
7_200
PID_FILE =

Kept for callers / older snippets. Prefer the methods above.

File.join(CRON_DIR, 'worker.pid')
WORKER_LOG = 
File.join(CRON_DIR, 'worker.log')
SYSTEMD_WORKER_UNIT =

OS-agnostic native persistence. jobs.yml remains the source of truth (5-field cron + relative "every 30m"). The in-process worker evaluates due? and fires jobs. A native backend only (a) restarts that worker after reboot / login and (b) optionally plants a calendar trigger per 5-field job so the schedule still fires if the worker is down.

linux -> systemd --user (Restart=always) else crontab @reboot osx -> launchd LaunchAgent (RunAtLoad + KeepAlive) windows -> schtasks ONLOGON *bsd / cygwin -> crontab @reboot when crontab(1) exists else -> in-process worker only (lives with the login)

'pwn-cron-worker.service'
LAUNCHD_WORKER_LABEL = 
'com.0dayinc.pwn.cron.worker'
SCHTASKS_WORKER_NAME = 
'PWN\CronWorker'

Class Method Summary collapse

Class Method Details

.apply_native?(opts = {}) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pwn/cron.rb', line 769

public_class_method def self.apply_native?(opts = {})
  return opts[:apply] if opts.key?(:apply)
  return false unless ENV['PWN_CRON_DIR'].to_s.empty?

  default = File.join(Dir.home, '.pwn', 'cron')
  File.expand_path(cron_dir.to_s) == File.expand_path(default)
end

.authors ⇒ Object

Author(s)

0day Inc. support@0dayinc.com



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# File 'lib/pwn/cron.rb', line 1502

public_class_method def self.authors
  "AUTHOR(S):\n  0day Inc. <support@0dayinc.com>\n"
end

.create(opts = {}) ⇒ Object

Supported Method Parameters

job = PWN::Cron.create( name: 'optional', schedule: 'required e.g. "0 * * * *" or "30m" or "every 2h"', prompt: 'optional - pwn-ai prompt to run', ruby: 'optional - ruby snippet to eval', script: 'optional - path to external script', delivery: 'log|stdout (default log)', enabled: true )



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# File 'lib/pwn/cron.rb', line 50

public_class_method def self.create(opts = {})
  jobs = load_jobs
  id = SecureRandom.hex(6)
  name = opts[:name] || "job-#{id}"
  job = {
    id: id,
    name: name,
    schedule: opts[:schedule] || '0 * * * *',
    prompt: opts[:prompt],
    ruby: opts[:ruby],
    script: opts[:script],
    delivery: opts[:delivery] || 'log',
    enabled: opts.fetch(:enabled, true),
    created_at: Time.now.utc.iso8601,
    last_run: nil,
    last_status: nil
  }
  jobs[id] = job
  save_jobs(jobs: jobs)

  # Optionally install a crontab entry (user must have permission)
  install_crontab_entry(job: job) if opts[:install_crontab]
  sync_one_job(job: job) if cron_enabled? && !opts[:install_crontab]

  job
end

.cron_dir ⇒ Object

Supported Method Parameters

dir = PWN::Cron.cron_dir



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# File 'lib/pwn/cron.rb', line 29

public_class_method def self.cron_dir
  FileUtils.mkdir_p(CRON_DIR)
  CRON_DIR
end

.cron_enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pwn/cron.rb', line 754

public_class_method def self.cron_enabled?
  scheduler_config[:enabled] != false
end

.cron_to_calendar(opts = {}) ⇒ Object

Convert a 5-field cron expression into a portable calendar hash. Returns nil for relative schedules or expressions we cannot map.



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# File 'lib/pwn/cron.rb', line 876

public_class_method def self.cron_to_calendar(opts = {})
  schedule = opts[:schedule].to_s.strip
  return nil if relative_seconds(schedule: schedule)

  fields = schedule.split
  return nil unless fields.length == 5

  min, hour, mday, mon, wday = fields
  return nil unless min.match?(/\A\d+\z/) && hour.match?(/\A\d+\z/)
  return nil unless mon == '*'

  minute = min.to_i
  hr = hour.to_i
  return nil unless minute.between?(0, 59) && hr.between?(0, 23)

  if mday == '*' && wday == '*'
    { kind: :daily, minute: minute, hour: hr }
  elsif mday == '*' && wday.match?(/\A[0-7]\z/)
    wd = wday.to_i
    wd = 0 if wd == 7
    { kind: :weekly, minute: minute, hour: hr, wday: wd }
  elsif wday == '*' && mday.match?(/\A\d+\z/)
    { kind: :monthly, minute: minute, hour: hr, mday: mday.to_i }
  end
end

.crontab_available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pwn/cron.rb', line 791

public_class_method def self.crontab_available?
  !which_bin(name: 'crontab').empty?
end

.disable(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 159

public_class_method def self.disable(opts = {})
  toggle(id: opts[:id], enabled: false)
end

.due?(opts = {}) ⇒ Boolean

Supported Method Parameters

PWN::Cron.due?( schedule: 'required - 5-field cron or relative ("30m", "every 2h")', last_run: 'optional - Time / iso8601 / nil', now: 'optional - Time (default Time.now)' )

Returns:

  • (Boolean) 


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# File 'lib/pwn/cron.rb', line 325

public_class_method def self.due?(opts = {})
  schedule = opts[:schedule].to_s.strip
  return false if schedule.empty?

  now = opts[:now] || Time.now
  last = parse_time(value: opts[:last_run])

  if (secs = relative_seconds(schedule: schedule))
    return true if last.nil?

    return (now - last) >= secs
  end

  fields = schedule.split
  return false unless fields.length == 5

  prev = last || (now - (24 * 60 * 60))
  # Walk minute-aligned slots from the minute AFTER last_run
  # (or the last 24h if never run) up to `now`.
  t = Time.at(((prev.to_i / 60) + 1) * 60)
  t = Time.local(t.year, t.month, t.day, t.hour, t.min, 0)
  limit = Time.local(now.year, now.month, now.day, now.hour, now.min, 0)
  safety = 0
  while t <= limit && safety < 10_080
    return true if cron_match?(fields: fields, time: t)

    t += 60
    safety += 1
  end
  false
rescue StandardError
  false
end

.due_jobs(opts = {}) ⇒ Object

Supported Method Parameters

PWN::Cron.due_jobs(now: Time)



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# File 'lib/pwn/cron.rb', line 361

public_class_method def self.due_jobs(opts = {})
  now = opts[:now] || Time.now
  load_jobs.each_with_object({}) do |(id, job), acc|
    next unless job.is_a?(Hash)
    next unless job[:enabled]
    next unless due?(schedule: job[:schedule], last_run: job[:last_run], now: now)

    acc[id] = job
  end
end

.enable(opts = {}) ⇒ Object

Supported Method Parameters

PWN::Cron.enable/disable(id:)



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# File 'lib/pwn/cron.rb', line 155

public_class_method def self.enable(opts = {})
  toggle(id: opts[:id], enabled: true)
end

.ensure_worker(opts = {}) ⇒ Object

PWN::Setup hook — start (or restart) the background worker after any setup action so YAML-only default jobs actually fire.



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# File 'lib/pwn/cron.rb', line 526

public_class_method def self.ensure_worker(opts = {})
  start_worker(
    interval: opts[:interval] || DEFAULT_INTERVAL,
    restart: opts.fetch(:restart, false),
    foreground: false
  )
end

.help ⇒ Object

Display Usage for this Module



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# File 'lib/pwn/cron.rb', line 1507

public_class_method def self.help
  puts <<~USAGE
            USAGE:
              PWN::Cron.create(schedule: '0 * * * *', prompt: 'Run daily recon on target.com using NmapIt and report', name: 'daily-recon')
              PWN::Cron.list
              res = PWN::Cron.run(id: 'abc123')
              PWN::Cron.enable(id: 'abc123')
              PWN::Cron.disable(id: 'abc123')
              PWN::Cron.remove(id: 'abc123')
              # OS-native persistence (systemd --user / launchd / schtasks / crontab)
              PWN::Cron.install_scheduler
              PWN::Cron.uninstall_scheduler
              PWN::Cron.sync_scheduler
              PWN::Cron.scheduler_backend
    PWN::Cron.install_defaults  # seed S1/P3/W2/M1 curriculum jobs (idempotent)
    PWN::Cron.ensure_worker     # start/restart the background scheduler
    PWN::Cron.worker_status
    PWN::Cron.tick              # fire currently-due jobs once

              #{self}.authors
  USAGE
end

.install_crontab_entry(opts = {}) ⇒ Object

Install a crontab line that invokes this job via pwn (assumes /opt/pwn and the active rvm ruby@pwn gemset - user can edit crontab)



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# File 'lib/pwn/cron.rb', line 165

public_class_method def self.install_crontab_entry(opts = {})
  install_native_job(opts.merge(backend: :crontab))
end

.install_crontab_job(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1078

public_class_method def self.install_crontab_job(opts = {})
  job = opts[:job]
  apply = apply_native?(opts)
  snippet = "require \"pwn\"; PWN::Cron.run(id: #{job[:id].to_s.inspect})"
  line = "#{job[:schedule]} #{ruby_eval_shell(snippet: snippet, log: File.join(cron_dir, 'cron.log'))}"
  block = "# pwn-cron #{job[:name]} (#{job[:id]})\n#{line}\n"
  write_native_preview(name: "job-#{job[:id]}.crontab", body: block)
  return { backend: :crontab, apply: false, line: line, id: job[:id] } unless apply && crontab_available?

  existing = crontab_read
  return { backend: :crontab, already: true, id: job[:id], line: line } if existing.include?(job[:id].to_s)

  crontab_write(body: "#{existing.rstrip}\n#{block}")
  { backend: :crontab, apply: true, id: job[:id], line: line }
end

.install_crontab_worker(opts = {}) ⇒ Object

---- crontab -------------------------------------------------------



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# File 'lib/pwn/cron.rb', line 1063

public_class_method def self.install_crontab_worker(opts = {})
  apply = apply_native?(opts)
  marker = 'PWN::Cron.ensure_worker'
  line = "@reboot #{ruby_eval_shell(snippet: 'require "pwn"; PWN::Cron.ensure_worker(restart: false)', log: worker_log)}"
  preview = "# pwn-cron worker\n#{line}\n"
  write_native_preview(name: 'worker.crontab', body: preview)
  return { backend: :crontab, apply: false, line: line } unless apply && crontab_available?

  existing = crontab_read
  return { backend: :crontab, already: true, line: line } if existing.include?(marker)

  crontab_write(body: "#{existing.rstrip}\n#{preview}")
  { backend: :crontab, apply: true, line: line }
end

.install_defaults ⇒ Object 



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# File 'lib/pwn/cron.rb', line 250

public_class_method def self.install_defaults
  jobs = load_jobs
  names = jobs.values.map { |j| j[:name].to_s }
  seeded = []

  DEFAULT_JOBS.each do |spec|
    aliases = Array(spec[:aliases]).map(&:to_s)
    known = [spec[:name].to_s, *aliases]
    next if names.intersect?(known)

    seeded << create(
      name: spec[:name],
      schedule: spec[:schedule],
      ruby: spec[:ruby],
      delivery: 'log',
      enabled: true
    )
    names << spec[:name].to_s
  end

  # P13 - disable the legacy alias when both occupy the 30 3 * * * slot.
  if names.include?('curriculum_offline_judge') && names.include?('offline_judge_nightly')
    begin
      dup = jobs.values.find { |j| j[:name].to_s == 'offline_judge_nightly' }
      disable(id: dup[:id]) if dup && dup[:enabled]
    rescue StandardError
      nil
    end
  end

  seeded
rescue StandardError => e
  warn("[PWN::Cron] install_defaults failed: #{e.class}: #{e.message}")
  []
end

.install_launchd_job(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1237

public_class_method def self.install_launchd_job(opts = {})
  job = opts[:job]
  apply = apply_native?(opts)
  ints = launchd_calendar_interval(schedule: job[:schedule])
  return { backend: :launchd, id: job[:id], skipped: true, reason: :no_calendar } unless ints

  label = launchd_job_label(job: job)
  argv = ruby_eval_argv(snippet: "require \"pwn\"; PWN::Cron.run(id: #{job[:id].to_s.inspect})")
  plist = launchd_plist(label: label, argv: argv, keepalive: false, run_at_load: false, calendar: ints)
  path = write_unit_file(backend: :launchd, name: "#{label}.plist", body: plist, apply: apply)
  launchctl_load(path: path, label: label) if apply
  { backend: :launchd, id: job[:id], label: label, path: path, calendar: ints, apply: apply }
end

.install_launchd_worker(opts = {}) ⇒ Object

---- launchd -------------------------------------------------------



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# File 'lib/pwn/cron.rb', line 1223

public_class_method def self.install_launchd_worker(opts = {})
  apply = apply_native?(opts)
  label = LAUNCHD_WORKER_LABEL
  plist = launchd_plist(
    label: label,
    argv: ruby_eval_argv(snippet: 'require "pwn"; PWN::Cron.start_worker(restart: false, foreground: true)'),
    keepalive: true,
    run_at_load: true
  )
  path = write_unit_file(backend: :launchd, name: "#{label}.plist", body: plist, apply: apply)
  launchctl_load(path: path, label: label) if apply
  { backend: :launchd, label: label, path: path, apply: apply }
end

.install_native_job(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1018

public_class_method def self.install_native_job(opts = {})
  job = opts[:job]
  return nil unless job.is_a?(Hash) && job[:id]

  backend = (opts[:backend] || scheduler_backend).to_sym
  apply = apply_native?(opts)
  case backend
  when :crontab then install_crontab_job(job: job, apply: apply)
  when :systemd_user then install_systemd_user_job(job: job, apply: apply)
  when :launchd then install_launchd_job(job: job, apply: apply)
  when :schtasks then install_schtasks_job(job: job, apply: apply)
  else
    { backend: backend, skipped: true, reason: :worker_only }
  end
end

.install_scheduler(opts = {}) ⇒ Object

Supported Method Parameters

PWN::Cron.install_scheduler( enabled: true, backend: optional force, apply: optional (default true unless PWN_CRON_DIR is set), sync_jobs: true )



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# File 'lib/pwn/cron.rb', line 946

public_class_method def self.install_scheduler(opts = {})
  enabled = opts.fetch(:enabled, true)
  return uninstall_scheduler(opts) unless enabled

  backend = scheduler_backend(opts)
  apply = apply_native?(opts)
  %i[systemd_user launchd schtasks crontab].each do |other|
    next if other == backend

    uninstall_scheduler(backend: other, apply: apply, persist: false, stop: false)
  end

  persist_scheduler_config(enabled: true, backend: backend)
  result = case backend
           when :systemd_user then install_systemd_user_worker(apply: apply)
           when :launchd then install_launchd_worker(apply: apply)
           when :schtasks then install_schtasks_worker(apply: apply)
           when :crontab then install_crontab_worker(apply: apply)
           else
             { backend: :worker, persisted: false, note: 'in-process worker only' }
           end

  jobs_sync = if opts.fetch(:sync_jobs, true)
                sync_native_jobs(backend: backend, apply: apply)
              else
                []
              end
  { ok: true, backend: backend, apply: apply, worker: result, jobs: jobs_sync }
rescue StandardError => e
  warn("[PWN::Cron] install_scheduler failed: #{e.class}: #{e.message}")
  { ok: false, error: "#{e.class}: #{e.message}" }
end

.install_schtasks_job(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1288

public_class_method def self.install_schtasks_job(opts = {})
  job = opts[:job]
  apply = apply_native?(opts)
  spec = schtasks_spec(schedule: job[:schedule])
  return { backend: :schtasks, id: job[:id], skipped: true, reason: :no_calendar } unless spec

  name = schtasks_job_name(job: job)
  tr = ruby_eval_shell(snippet: "require \"pwn\"; PWN::Cron.run(id: #{job[:id].to_s.inspect})")
  argv = ['schtasks', '/Create', '/F', '/TN', name, '/SC', spec[:sc], '/ST', spec[:st], '/RL', 'LIMITED', '/TR', tr]
  argv += ['/D', spec[:d]] if spec[:d]
  write_native_preview(name: "job-#{job[:id]}.schtasks.txt", body: argv.inspect)
  run_argv(argv: argv) if apply && schtasks_available?
  { backend: :schtasks, id: job[:id], name: name, spec: spec, apply: apply }
end

.install_schtasks_worker(opts = {}) ⇒ Object

---- schtasks (Windows) -------------------------------------------



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# File 'lib/pwn/cron.rb', line 1279

public_class_method def self.install_schtasks_worker(opts = {})
  apply = apply_native?(opts)
  tr = ruby_eval_shell(snippet: 'require "pwn"; PWN::Cron.ensure_worker(restart: false)')
  argv = ['schtasks', '/Create', '/F', '/TN', SCHTASKS_WORKER_NAME, '/SC', 'ONLOGON', '/RL', 'LIMITED', '/TR', tr]
  write_native_preview(name: 'worker.schtasks.txt', body: argv.inspect)
  run_argv(argv: argv) if apply && schtasks_available?
  { backend: :schtasks, name: SCHTASKS_WORKER_NAME, tr: tr, apply: apply }
end

.install_systemd_user_job(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1148

public_class_method def self.install_systemd_user_job(opts = {})
  job = opts[:job]
  apply = apply_native?(opts)
  cal = cron_to_calendar(schedule: job[:schedule])
  oncal = systemd_on_calendar(calendar: cal)
  return { backend: :systemd_user, id: job[:id], skipped: true, reason: :no_calendar } unless oncal

  svc = systemd_job_service(job: job)
  tmr = systemd_job_timer(job: job)
  snippet = "require \"pwn\"; PWN::Cron.run(id: #{job[:id].to_s.inspect})"
  exec_start = ruby_eval_shell(snippet: snippet)
  svc_body = <<~UNIT
    [Unit]
    Description=PWN cron job #{job[:name]} (#{job[:id]})

    [Service]
    Type=oneshot
    ExecStart=#{exec_start}
    Environment=PWN_CRON_DIR=#{cron_dir}
  UNIT
  tmr_body = <<~UNIT
    [Unit]
    Description=PWN cron timer #{job[:name]} (#{job[:schedule]})

    [Timer]
    OnCalendar=#{oncal}
    Persistent=true
    Unit=#{svc}

    [Install]
    WantedBy=timers.target
  UNIT
  svc_path = write_unit_file(backend: :systemd_user, name: svc, body: svc_body, apply: apply)
  tmr_path = write_unit_file(backend: :systemd_user, name: tmr, body: tmr_body, apply: apply)
  if apply
    systemd_user(args: ['daemon-reload'])
    systemd_user(args: ['enable', '--now', tmr])
  end
  { backend: :systemd_user, id: job[:id], service: svc, timer: tmr, on_calendar: oncal,
    paths: [svc_path, tmr_path], apply: apply }
end

.install_systemd_user_worker(opts = {}) ⇒ Object

---- systemd --user ------------------------------------------------



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# File 'lib/pwn/cron.rb', line 1118

public_class_method def self.install_systemd_user_worker(opts = {})
  apply = apply_native?(opts)
  exec_start = ruby_eval_shell(
    snippet: 'require "pwn"; PWN::Cron.start_worker(restart: false, foreground: true)'
  )
  body = <<~UNIT
    [Unit]
    Description=PWN cron worker (evaluates ~/.pwn/cron/jobs.yml schedules)
    After=default.target

    [Service]
    Type=simple
    ExecStart=#{exec_start}
    Restart=always
    RestartSec=5
    Environment=PWN_CRON_DIR=#{cron_dir}
    WorkingDirectory=#{ruby_lib_dir}

    [Install]
    WantedBy=default.target
  UNIT
  path = write_unit_file(backend: :systemd_user, name: SYSTEMD_WORKER_UNIT, body: body, apply: apply)
  if apply
    systemd_user(args: ['daemon-reload'])
    systemd_user(args: ['enable', '--now', SYSTEMD_WORKER_UNIT])
    enable_linger
  end
  { backend: :systemd_user, unit: SYSTEMD_WORKER_UNIT, path: path, apply: apply }
end

.install_worker_crontab(opts = {}) ⇒ Object

Supported Method Parameters

PWN::Cron.install_worker_crontab

Append an @reboot line so the worker comes back after a reboot. Idempotent. Does not remove existing per-job crontab lines.



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# File 'lib/pwn/cron.rb', line 538

public_class_method def self.install_worker_crontab(opts = {})
  install_crontab_worker(opts)
rescue StandardError => e
  warn("[PWN::Cron] install_worker_crontab failed: #{e.class}: #{e.message}")
  nil
end

.jobs_file ⇒ Object

Supported Method Parameters

PWN::Cron.jobs_file / PWN::Cron.pid_file / PWN::Cron.worker_log

Runtime paths follow cron_dir (and therefore a stubbed CRON_DIR).



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# File 'lib/pwn/cron.rb', line 303

public_class_method def self.jobs_file
  File.join(cron_dir, 'jobs.yml')
end

.launchd_calendar_interval(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 916

public_class_method def self.launchd_calendar_interval(opts = {})
  cal = opts[:calendar] || cron_to_calendar(schedule: opts[:schedule])
  return nil unless cal

  ints = { 'Hour' => cal[:hour], 'Minute' => cal[:minute] }
  ints['Weekday'] = cal[:wday] if cal[:kind] == :weekly
  ints['Day'] = cal[:mday] if cal[:kind] == :monthly
  ints
end

.list ⇒ Object

Supported Method Parameters

jobs = PWN::Cron.list



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# File 'lib/pwn/cron.rb', line 36

public_class_method def self.list
  load_jobs
end

.native_unit_dir(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 838

public_class_method def self.native_unit_dir(opts = {})
  backend = (opts[:backend] || scheduler_backend).to_sym
  sandboxed = !ENV['PWN_CRON_DIR'].to_s.empty? || !apply_native?(opts)
  return File.join(cron_dir, 'native') if sandboxed

  case backend
  when :launchd
    File.join(Dir.home, 'Library', 'LaunchAgents')
  when :systemd_user
    File.join(Dir.home, '.config', 'systemd', 'user')
  else
    File.join(cron_dir, 'native')
  end
end

.os_type ⇒ Object 



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# File 'lib/pwn/cron.rb', line 708

public_class_method def self.os_type
  t = begin
    PWN::Plugins::DetectOS.type
  rescue StandardError
    nil
  end
  return t if t

  host = RbConfig::CONFIG['host_os'].to_s.downcase
  return :windows if host.match?(/mswin|mingw|bccwin|wince|emc/)
  return :cygwin if host.include?('cygwin')
  return :osx if host.include?('darwin')
  return :linux if host.include?('linux')
  return :freebsd if host.include?('freebsd')
  return :netbsd if host.include?('netbsd')
  return :openbsd if host.include?('openbsd')

  :unknown
end

.persist_scheduler_config(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 758

public_class_method def self.persist_scheduler_config(opts = {})
  cfg = scheduler_config.merge(
    enabled: opts.fetch(:enabled, cron_enabled?),
    backend: (opts[:backend] || scheduler_config[:backend])&.to_sym,
    updated_at: Time.now.utc.iso8601
  )
  FileUtils.mkdir_p(cron_dir)
  File.write(scheduler_file, YAML.dump(cfg))
  cfg
end

.pid_file ⇒ Object 



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# File 'lib/pwn/cron.rb', line 307

public_class_method def self.pid_file
  File.join(cron_dir, 'worker.pid')
end

.remove(opts = {}) ⇒ Object

rubocop:disable Naming/PredicateMethod



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# File 'lib/pwn/cron.rb', line 144

public_class_method def self.remove(opts = {}) # rubocop:disable Naming/PredicateMethod
  id = opts[:id].to_s
  jobs = load_jobs
  gone = jobs.delete(id)
  save_jobs(jobs: jobs)
  remove_native_job(job: gone) if gone
  true
end

.remove_native_job(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1034

public_class_method def self.remove_native_job(opts = {})
  job = opts[:job] || { id: opts[:id], name: opts[:name] }
  backend = (opts[:backend] || scheduler_backend).to_sym
  apply = apply_native?(opts)
  case backend
  when :crontab then uninstall_crontab_job(job: job, apply: apply)
  when :systemd_user then uninstall_systemd_user_job(job: job, apply: apply)
  when :launchd then uninstall_launchd_job(job: job, apply: apply)
  when :schtasks then uninstall_schtasks_job(job: job, apply: apply)
  else
    { backend: backend, skipped: true }
  end
end

.ruby_eval_argv(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 857

public_class_method def self.ruby_eval_argv(opts = {})
  snippet = opts[:snippet].to_s
  [RbConfig.ruby, '-I', ruby_lib_dir, '-e', snippet]
end

.ruby_eval_shell(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 862

public_class_method def self.ruby_eval_shell(opts = {})
  argv = ruby_eval_argv(opts)
  log = opts[:log]
  if windows?
    cmd = argv.map { |a| /[\s"]/.match?(a) ? "\"#{a.gsub('"', '""')}\"" : a }.join(' ')
    log ? "#{cmd} >> #{log} 2>&1" : cmd
  else
    cmd = Shellwords.join(argv)
    log ? "#{cmd} >> #{Shellwords.escape(log.to_s)} 2>&1" : cmd
  end
end

.ruby_lib_dir ⇒ Object 



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# File 'lib/pwn/cron.rb', line 853

public_class_method def self.ruby_lib_dir
  File.expand_path('..', __dir__)
end

.run(opts = {}) ⇒ Object

Supported Method Parameters

PWN::Cron.run(id: 'required or name') Executes the job (for pwn-ai prompt it will use current active AI engine via PWN::AI::* but without full REPL hook unless in pwn-ai).



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# File 'lib/pwn/cron.rb', line 81

public_class_method def self.run(opts = {})
  id = opts[:id].to_s
  jobs = load_jobs
  job = jobs[id] || jobs.values.find { |j| j[:name] == id || j[:id] == id }
  raise "Job #{id} not found" unless job

  start = Time.now
  result = nil
  status = 'success'

  begin
    if job[:prompt]
      engine = begin
        PWN::Env[:ai][:active].to_s.downcase.to_sym
      rescue StandardError
        :grok
      end
      case engine
      when :grok
        result = PWN::AI::Grok.chat(request: job[:prompt], spinner: false)
      when :ollama
        result = PWN::AI::Ollama.chat(request: job[:prompt], spinner: false)
      when :openai
        result = PWN::AI::OpenAI.chat(request: job[:prompt], spinner: false)
      when :anthropic
        result = PWN::AI::Anthropic.chat(request: job[:prompt], spinner: false)
      when :gemini
        result = PWN::AI::Gemini.chat(request: job[:prompt], spinner: false)
      end
      result = begin
        result[:choices].last[:content]
      rescue StandardError
        result.to_s
      end
    elsif job[:ruby]
      result = eval(job[:ruby], TOPLEVEL_BINDING) # rubocop:disable Security/Eval
    elsif job[:script] && File.exist?(job[:script])
      result = `#{job[:script]} 2>&1`
    else
      result = 'No prompt/ruby/script defined'
    end

    if job[:delivery] == 'log'
      log_path = File.join(cron_dir, "#{job[:id]}.log")
      File.open(log_path, 'a') do |f|
        f.puts("[#{Time.now}] RUN #{job[:name]} (#{job[:id]})\n#{result}\n---")
      end
    end
  rescue StandardError => e
    status = 'error'
    result = "ERROR: #{e.class} - #{e.message}\n#{e.backtrace.first(5).join("\n")}"
  end

  job[:last_run] = Time.now.utc.iso8601
  job[:last_status] = status
  jobs[job[:id]] = job
  save_jobs(jobs: jobs)

  { job: job, result: result, duration: Time.now - start, status: status }
end

.run_due(opts = {}) ⇒ Object

Supported Method Parameters

PWN::Cron.run_due(now: Time, jobs: optional Hash)

Fires every currently-due enabled job via run(). Returns the list of status:, duration: hashes (empty when nothing is due).



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# File 'lib/pwn/cron.rb', line 376

public_class_method def self.run_due(opts = {})
  now = opts[:now] || Time.now
  jobs = opts[:jobs] || due_jobs(now: now)
  jobs.map do |id, _job|
    res = run(id: id)
    { id: id, status: res[:status], duration: res[:duration] }
  rescue StandardError => e
    { id: id, status: 'error', error: "#{e.class}: #{e.message}" }
  end
end

.scheduler_backend(opts = {}) ⇒ Object

Supported Method Parameters

PWN::Cron.scheduler_backend(os: optional, backend: optional force)



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# File 'lib/pwn/cron.rb', line 811

public_class_method def self.scheduler_backend(opts = {})
  return opts[:backend].to_sym if opts[:backend]

  unless opts[:os]
    persisted = scheduler_config[:backend]
    return persisted if persisted
  end

  os = (opts[:os] || os_type).to_sym
  case os
  when :windows
    schtasks_available? ? :schtasks : :worker
  when :osx
    :launchd
  when :linux
    if systemd_user_available?
      :systemd_user
    elsif crontab_available?
      :crontab
    else
      :worker
    end
  else
    crontab_available? ? :crontab : :worker
  end
end

.scheduler_config ⇒ Object 



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# File 'lib/pwn/cron.rb', line 736

public_class_method def self.scheduler_config
  path = scheduler_file
  return { enabled: true, backend: nil } unless File.exist?(path)

  raw = YAML.safe_load_file(
    path,
    permitted_classes: [Symbol, Time],
    symbolize_names: true
  ) || {}
  {
    enabled: raw.key?(:enabled) ? raw[:enabled] == true : true,
    backend: raw[:backend]&.to_sym,
    updated_at: raw[:updated_at]
  }
rescue StandardError
  { enabled: true, backend: nil }
end

.scheduler_file ⇒ Object 



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# File 'lib/pwn/cron.rb', line 732

public_class_method def self.scheduler_file
  File.join(cron_dir, 'scheduler.yml')
end

.scheduler_status(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1005

public_class_method def self.scheduler_status(opts = {})
  backend = scheduler_backend(opts)
  {
    os: os_type,
    backend: backend,
    enabled: cron_enabled?,
    apply: apply_native?(opts),
    config: scheduler_config,
    worker: worker_status,
    unit_dir: native_unit_dir(backend: backend, apply: apply_native?(opts))
  }
end

.schtasks_available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pwn/cron.rb', line 805

public_class_method def self.schtasks_available?
  !which_bin(name: 'schtasks').empty?
end

.schtasks_spec(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 926

public_class_method def self.schtasks_spec(opts = {})
  cal = opts[:calendar] || cron_to_calendar(schedule: opts[:schedule])
  return nil unless cal

  st = format('%<h>02d:%<m>02d', h: cal[:hour], m: cal[:minute])
  case cal[:kind]
  when :daily then { sc: 'DAILY', st: st }
  when :weekly
    days = %w[SUN MON TUE WED THU FRI SAT]
    { sc: 'WEEKLY', st: st, d: days[cal[:wday]] }
  when :monthly then { sc: 'MONTHLY', st: st, d: cal[:mday].to_s }
  end
end

.start_worker(opts = {}) ⇒ Object

Supported Method Parameters

PWN::Cron.start_worker( interval: 60, foreground: false, restart: true )

Idempotent. With restart:true (default) a live worker is replaced so pwn setup always leaves a current worker running.



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# File 'lib/pwn/cron.rb', line 408

public_class_method def self.start_worker(opts = {})
  interval = (opts[:interval] || DEFAULT_INTERVAL).to_i
  interval = DEFAULT_INTERVAL if interval <= 0
  foreground = opts[:foreground] ? true : false
  restart = opts.fetch(:restart, true)

  st = worker_status
  return { started: false, already_running: true, pid: st[:pid], interval: interval } if st[:running] && !restart && !foreground

  stop_worker if st[:running] && (restart || foreground)

  if foreground
    write_pid(pid: Process.pid)
    begin
      worker_loop(interval: interval)
    ensure
      clear_pid(pid: Process.pid)
    end
    return { started: true, pid: Process.pid, foreground: true, interval: interval }
  end

  FileUtils.mkdir_p(cron_dir)
  spawn_env = ENV.to_h.merge('PWN_CRON_DIR' => cron_dir.to_s)
  pid = Process.spawn(
    spawn_env,
    RbConfig.ruby,
    '-I', File.expand_path('..', __dir__),
    '-e', worker_spawn_snippet(interval: interval),
    %i[out err] => [worker_log, 'a'],
    in: File::NULL,
    pgroup: !windows?
  )
  Process.detach(pid)

  # The child writes the pidfile; wait briefly.
  waited = 0
  live = nil
  while waited < 50
    live = read_pid
    break if live && process_alive?(pid: live)

    sleep 0.1
    waited += 1
  end
  {
    started: !(live && process_alive?(pid: live)).nil?,
    pid: live,
    spawn_pid: pid,
    interval: interval,
    log: worker_log,
    pid_file: pid_file
  }
end

.stop_worker ⇒ Object

Supported Method Parameters

PWN::Cron.stop_worker



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# File 'lib/pwn/cron.rb', line 464

public_class_method def self.stop_worker
  pid = read_pid
  killed = false
  if pid && process_alive?(pid: pid)
    begin
      Process.kill('TERM', pid)
      20.times do
        break unless process_alive?(pid: pid)

        sleep 0.05
      end
      Process.kill('KILL', pid) if process_alive?(pid: pid)
      killed = true
    rescue Errno::ESRCH, Errno::EPERM
      nil
    rescue StandardError
      windows_taskkill(pid: pid) if windows?
    end
  end
  FileUtils.rm_f(pid_file)
  { stopped: true, pid: pid, killed: killed }
end

.sync_native_jobs(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1048

public_class_method def self.sync_native_jobs(opts = {})
  backend = (opts[:backend] || scheduler_backend).to_sym
  apply = apply_native?(opts)
  load_jobs.map do |_id, job|
    next unless job.is_a?(Hash)

    if job[:enabled]
      install_native_job(job: job, backend: backend, apply: apply)
    else
      remove_native_job(job: job, backend: backend, apply: apply)
    end
  end.compact
end

.sync_scheduler(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 999

public_class_method def self.sync_scheduler(opts = {})
  return uninstall_scheduler(opts) unless opts.fetch(:enabled, cron_enabled?)

  install_scheduler(opts.merge(sync_jobs: true))
end

.systemd_on_calendar(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 902

public_class_method def self.systemd_on_calendar(opts = {})
  cal = opts[:calendar] || cron_to_calendar(schedule: opts[:schedule])
  return nil unless cal

  hhmmss = format('%<h>02d:%<m>02d:00', h: cal[:hour], m: cal[:minute])
  case cal[:kind]
  when :daily then "*-*-* #{hhmmss}"
  when :weekly
    dow = %w[Sun Mon Tue Wed Thu Fri Sat][cal[:wday]]
    "#{dow} *-*-* #{hhmmss}"
  when :monthly then "*-*-#{format('%<d>02d', d: cal[:mday])} #{hhmmss}"
  end
end

.systemd_user_available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pwn/cron.rb', line 795

public_class_method def self.systemd_user_available?
  return false if which_bin(name: 'systemctl').empty?
  return false unless apply_native?

  system('systemctl', '--user', 'show-environment',
         out: File::NULL, err: File::NULL)
rescue StandardError
  false
end

.tick(opts = {}) ⇒ Object

Single tick used by the loop AND by tests (no sleep).



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# File 'lib/pwn/cron.rb', line 488

public_class_method def self.tick(opts = {})
  run_due(now: opts[:now] || Time.now)
end

.uninstall_crontab(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1094

public_class_method def self.uninstall_crontab(opts = {})
  apply = apply_native?(opts)
  return [:preview] unless apply && crontab_available?

  existing = crontab_read
  cleaned = strip_pwn_crontab(existing: existing)
  crontab_write(body: cleaned) if cleaned != existing
  [:crontab]
end

.uninstall_crontab_job(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1104

public_class_method def self.uninstall_crontab_job(opts = {})
  job = opts[:job]
  apply = apply_native?(opts)
  FileUtils.rm_f(File.join(cron_dir, 'native', "job-#{job[:id]}.crontab"))
  return { backend: :crontab, apply: false, id: job[:id] } unless apply && crontab_available?

  existing = crontab_read
  cleaned = strip_pwn_crontab(existing: existing, id: job[:id].to_s)
  crontab_write(body: cleaned) if cleaned != existing
  { backend: :crontab, apply: true, id: job[:id], removed: true }
end

.uninstall_launchd(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1251

public_class_method def self.uninstall_launchd(opts = {})
  apply = apply_native?(opts)
  labels = [LAUNCHD_WORKER_LABEL]
  load_jobs.each_value do |job|
    next unless job.is_a?(Hash)

    labels << launchd_job_label(job: job)
  end
  labels.each do |label|
    path = unit_file_path(backend: :launchd, name: "#{label}.plist", apply: apply)
    launchctl_unload(path: path, label: label) if apply
    rm_unit_file(backend: :launchd, name: "#{label}.plist", apply: apply)
  end
  labels
end

.uninstall_launchd_job(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1267

public_class_method def self.uninstall_launchd_job(opts = {})
  job = opts[:job]
  apply = apply_native?(opts)
  label = launchd_job_label(job: job)
  path = unit_file_path(backend: :launchd, name: "#{label}.plist", apply: apply)
  launchctl_unload(path: path, label: label) if apply
  rm_unit_file(backend: :launchd, name: "#{label}.plist", apply: apply)
  { backend: :launchd, id: job[:id], removed: label }
end

.uninstall_scheduler(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 979

public_class_method def self.uninstall_scheduler(opts = {})
  backend = (opts[:backend] || scheduler_config[:backend] || scheduler_backend).to_sym
  apply = apply_native?(opts)
  persist_scheduler_config(enabled: false, backend: backend) unless opts[:persist] == false
  stop_worker if opts.fetch(:stop, true)

  removed = case backend
            when :systemd_user then uninstall_systemd_user(apply: apply)
            when :launchd then uninstall_launchd(apply: apply)
            when :schtasks then uninstall_schtasks(apply: apply)
            when :crontab then uninstall_crontab(apply: apply)
            else
              []
            end
  { ok: true, backend: backend, apply: apply, removed: removed }
rescue StandardError => e
  warn("[PWN::Cron] uninstall_scheduler failed: #{e.class}: #{e.message}")
  { ok: false, error: "#{e.class}: #{e.message}" }
end

.uninstall_schtasks(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1303

public_class_method def self.uninstall_schtasks(opts = {})
  apply = apply_native?(opts)
  names = [SCHTASKS_WORKER_NAME]
  load_jobs.each_value do |job|
    next unless job.is_a?(Hash)

    names << schtasks_job_name(job: job)
  end
  names.each { |n| run_argv(argv: ['schtasks', '/Delete', '/F', '/TN', n]) if apply && schtasks_available? }
  names
end

.uninstall_schtasks_job(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1315

public_class_method def self.uninstall_schtasks_job(opts = {})
  job = opts[:job]
  apply = apply_native?(opts)
  name = schtasks_job_name(job: job)
  run_argv(argv: ['schtasks', '/Delete', '/F', '/TN', name]) if apply && schtasks_available?
  FileUtils.rm_f(File.join(cron_dir, 'native', "job-#{job[:id]}.schtasks.txt"))
  { backend: :schtasks, id: job[:id], removed: name }
end

.uninstall_systemd_user(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1190

public_class_method def self.uninstall_systemd_user(opts = {})
  apply = apply_native?(opts)
  names = [SYSTEMD_WORKER_UNIT]
  load_jobs.each_value do |job|
    next unless job.is_a?(Hash)

    names << systemd_job_timer(job: job)
    names << systemd_job_service(job: job)
  end
  if apply
    names.each { |u| systemd_user(args: ['disable', '--now', u]) }
    systemd_user(args: ['daemon-reload'])
  end
  names.each { |n| rm_unit_file(backend: :systemd_user, name: n, apply: apply) }
  names
end

.uninstall_systemd_user_job(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 1207

public_class_method def self.uninstall_systemd_user_job(opts = {})
  job = opts[:job]
  apply = apply_native?(opts)
  svc = systemd_job_service(job: job)
  tmr = systemd_job_timer(job: job)
  if apply
    systemd_user(args: ['disable', '--now', tmr])
    systemd_user(args: ['disable', '--now', svc])
    systemd_user(args: ['daemon-reload'])
  end
  rm_unit_file(backend: :systemd_user, name: svc, apply: apply)
  rm_unit_file(backend: :systemd_user, name: tmr, apply: apply)
  { backend: :systemd_user, id: job[:id], removed: [svc, tmr] }
end

.which_bin(opts = {}) ⇒ Object 



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# File 'lib/pwn/cron.rb', line 777

public_class_method def self.which_bin(opts = {})
  name = opts[:name].to_s
  return '' if name.empty?

  exts = windows? ? %w[.exe .bat .cmd] + [''] : ['']
  ENV.fetch('PATH', '').split(File::PATH_SEPARATOR).each do |dir|
    exts.each do |ext|
      cand = File.join(dir, "#{name}#{ext}")
      return cand if File.file?(cand) && File.executable?(cand)
    end
  end
  ''
end

.windows? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pwn/cron.rb', line 728

public_class_method def self.windows?
  os_type == :windows
end

.worker_log ⇒ Object 



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# File 'lib/pwn/cron.rb', line 311

public_class_method def self.worker_log
  File.join(cron_dir, 'worker.log')
end

.worker_loop(opts = {}) ⇒ Object

rubocop:disable Naming/PredicateMethod



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# File 'lib/pwn/cron.rb', line 495

public_class_method def self.worker_loop(opts = {}) # rubocop:disable Naming/PredicateMethod
  interval = (opts[:interval] || DEFAULT_INTERVAL).to_i
  interval = DEFAULT_INTERVAL if interval <= 0
  once = opts[:once] ? true : false
  trap_shutdown! unless once

  loop do
    begin
      tick
    rescue StandardError => e
      warn("[PWN::Cron] worker tick failed: #{e.class}: #{e.message}")
    end
    break if once
    break if @worker_stop
    break if File.exist?(pid_file) && read_pid != Process.pid

    slept = 0
    while slept < interval
      break if @worker_stop

      step = [1, interval - slept].min
      sleep(step)
      slept += step
    end
    break if @worker_stop
  end
  true
end

.worker_status ⇒ Object

Supported Method Parameters

PWN::Cron.worker_status



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# File 'lib/pwn/cron.rb', line 389

public_class_method def self.worker_status
  pid = read_pid
  running = pid && process_alive?(pid: pid)
  {
    running: running ? true : false,
    pid: running ? pid : nil,
    pid_file: pid_file,
    log: worker_log
  }
end