Модуль: Cask::Quarantine Приватный

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# File 'cask/quarantine.rb', line 107

def self.available?
  @quarantine_support ||= T.let(check_quarantine_support, T.nilable([Symbol, T.nilable(String)]))

  @quarantine_support[0] == :quarantine_available
end

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# File 'cask/quarantine.rb', line 201

def self.cask!(cask: nil, download_path: nil, action: true)
  return if cask.nil? || download_path.nil?

  return if detect(download_path)

  odebug "Quarantining #{download_path}"

  raise "unexpected nil swift" unless swift

  quarantiner = system_command(T.must(swift),
                               args:         [
                                 *swift_target_args,
                                 QUARANTINE_SCRIPT,
                                 download_path,
                                 cask.url.to_s,
                                 cask.homepage.to_s,
                               ],
                               print_stderr: false)

  return if quarantiner.success?

  case quarantiner.exit_status
  when 2
    raise CaskQuarantineError.new(download_path, "Insufficient parameters")
  else
    raise CaskQuarantineError.new(download_path, quarantiner.stderr)
  end
end

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# File 'cask/quarantine.rb', line 58

def self.check_quarantine_support
  odebug "Checking quarantine support"

  check_output = nil
  status = if xattr.nil? || !system_command(T.must(xattr), args: ["-h"], print_stderr: false).success?
    odebug "There's no working version of `xattr` on this system."
    :xattr_broken
  elsif swift.nil?
    odebug "Swift is not available on this system."
    :no_swift
  else
    s = swift
    raise "unexpected nil swift" unless s

    api_check = system_command(s,
                               args:         [*swift_target_args, QUARANTINE_SCRIPT],
                               print_stderr: false)

    exit_status = api_check.exit_status
    check_output = api_check.merged_output.to_s.strip
    error_output = api_check.stderr.to_s.strip

    case exit_status
    when 2
      odebug "Quarantine is available."
      :quarantine_available
    when 1
      # Swift script ran but failed (likely due to CLT issues)
      odebug "Swift quarantine script failed: #{error_output}"
      if error_output.include?("does not exist") || error_output.include?("No such file")
        :swift_broken_clt
      elsif error_output.include?("compiler") || error_output.include?("SDK")
        :swift_compilation_failed
      else
        :swift_runtime_error
      end
    when 127
      # Command not found or execution failed
      odebug "Swift execution failed with exit status 127"
      :swift_not_executable
    else
      odebug "Swift returned unexpected exit status: #{exit_status}"
      :swift_unexpected_error
    end
  end
  [status, check_output]
end

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# File 'cask/quarantine.rb', line 272

def self.copy_xattrs(from, to, command:)
  odebug "Copying xattrs from #{from} to #{to}"

  raise "unexpected nil swift" unless swift

  command.run!(
    T.must(swift),
    args: [
      *swift_target_args,
      COPY_XATTRS_SCRIPT,
      from,
      to,
    ],
    sudo: !to.writable?,
  )
end

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# File 'cask/quarantine.rb', line 114

def self.detect(file)
  return if file.nil?

  odebug "Verifying Gatekeeper status of #{file}"

  quarantine_status = !status(file).empty?

  odebug "#{file} is #{quarantine_status ? "quarantined" : "not quarantined"}"

  quarantine_status
end

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# File 'cask/quarantine.rb', line 231

def self.propagate(from: nil, to: nil)
  return if from.nil? || to.nil?

  raise CaskError, "#{from} was not quarantined properly." unless detect(from)

  odebug "Propagating quarantine from #{from} to #{to}"

  quarantine_status = toggle_no_translocation_bit(status(from))

  resolved_paths = Pathname.glob(to/"**/*", File::FNM_DOTMATCH).reject(&:symlink?)

  system_command!("/usr/bin/xargs",
                  args:  [
                    "-0",
                    "--",
                    "chmod",
                    "-h",
                    "u+w",
                  ],
                  input: resolved_paths.join("\0"))

  raise "unexpected nil xattr" unless xattr

  quarantiner = system_command("/usr/bin/xargs",
                               args:         [
                                 "-0",
                                 "--",
                                 T.must(xattr),
                                 "-w",
                                 QUARANTINE_ATTRIBUTE,
                                 quarantine_status,
                               ],
                               input:        resolved_paths.join("\0"),
                               print_stderr: false)

  return if quarantiner.success?

  raise CaskQuarantinePropagationError.new(to, quarantiner.stderr)
end

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# File 'cask/quarantine.rb', line 180

def self.release!(download_path: nil)
  return if !download_path || !detect(download_path)

  odebug "Releasing #{download_path} from quarantine"

  raise "unexpected nil xattr" unless xattr

  quarantiner = system_command(T.must(xattr),
                               args:         [
                                 "-d",
                                 QUARANTINE_ATTRIBUTE,
                                 download_path,
                               ],
                               print_stderr: false)

  return if quarantiner.success?

  raise CaskQuarantineReleaseError.new(download_path, quarantiner.stderr)
end

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# File 'cask/quarantine.rb', line 146

def self.signing_identity(file)
  result = system_command("codesign", args: ["-dvvv", file], print_stderr: false)
  return unless result.success?

  identifier = T.let(nil, T.nilable(String))
  team_identifier = T.let(nil, T.nilable(String))

  result.merged_output.to_s.each_line do |line|
    case line.chomp
    when /\AIdentifier=(.+)\z/
      identifier = Regexp.last_match(1)
    when /\ATeamIdentifier=(.+)\z/
      team_identifier = Regexp.last_match(1)
      team_identifier = nil if team_identifier == "not set"
    end
  end

  SigningIdentity.new(identifier:, team_identifier:)
end

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# File 'cask/quarantine.rb', line 127

def self.status(file)
  raise "unexpected nil xattr" unless xattr

  system_command(T.must(xattr),
                 args:         ["-p", QUARANTINE_ATTRIBUTE, file],
                 print_stderr: false).stdout.rstrip
end

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# File 'cask/quarantine.rb', line 167

def self.toggle_no_translocation_bit(attribute)
  fields = attribute.split(";")

  # Fields: status, epoch, download agent, event ID
  # Let's toggle the app translocation bit, bit 8
  # http://www.openradar.me/radar?id=5022734169931776

  fields[0] = (fields.fetch(0).to_i(16) | 0x0100).to_s(16).rjust(4, "0")

  fields.join(";")
end

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# File 'cask/quarantine.rb', line 136

def self.user_approved?(file)
  return false if xattr.nil?

  quarantine_status = status(file)
  return false if quarantine_status.empty?

  quarantine_status.split(";").fetch(0).to_i(16).anybits?(USER_APPROVED_FLAG)
end