class Key

# File app/models/key.rb, line 30
def fingerprintable_key
  return true unless key # Don't test if there is no key.
  # `ssh-keygen -lf /dev/stdin <<< "#{key}"` errors with: redirection unexpected
  file = Tempfile.new('key_file')
  begin
    file.puts key
    file.rewind
    fingerprint_output = %xssh-keygen -lf #{file.path} 2>&1` # Catch stderr.
  ensure
    file.close
    file.unlink # deletes the temp file
  end
  errors.add(:key, "can't be fingerprinted") if fingerprint_output.match("failed")
end

# File app/models/key.rb, line 53
def is_deploy_key
  true if project_id
end

# File app/models/key.rb, line 66
def last_deploy?
  Key.where(identifier: identifier).count == 0
end

# File app/models/key.rb, line 58
def projects
  if is_deploy_key
    [project]
  else
    user.projects
  end
end

# File app/models/key.rb, line 45
def set_identifier
  if is_deploy_key
    self.identifier = "deploy_#{Digest::MD5.hexdigest(key)}"
  else
    self.identifier = "#{user.identifier}_#{Time.now.to_i}"
  end
end

# File app/models/key.rb, line 18
def strip_white_space
  self.key = self.key.strip unless self.key.blank?
end

# File app/models/key.rb, line 22
def unique_key
  query = Key.where(key: key)
  query = query.where('(project_id IS NULL OR project_id = ?)', project_id) if project_id
  if (query.count > 0)
    errors.add :key, 'already exist.'
  end
end