Module: Legion::Extensions::Llm::Ledger::Helpers::CallerIdentity

Defined in:
lib/legion/extensions/llm/ledger/helpers/caller_identity.rb

Constant Summary collapse

GENERIC_IDENTITIES = 
%w[anonymous process service system user].freeze

Class Method Summary collapse

Class Method Details

.first_present(*values) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 56

def first_present(*values)
  values.find { |value| present?(value) }
end

.hash_value(hash, key) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 60

def hash_value(hash, key)
  return nil unless hash.respond_to?(:key?)
  return hash[key] if hash.key?(key)

  string_key = key.to_s
  hash[string_key] if hash.key?(string_key)
end

.header_value(headers, key) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 68

def header_value(headers, key)
  return nil unless headers.respond_to?(:key?)

  headers[key] || headers[key.to_sym]
end

.normalize(caller_raw: nil, identity: nil, headers: {}) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 13

def normalize(caller_raw: nil, identity: nil, headers: {})
  caller_hash = caller_raw.is_a?(Hash) ? caller_raw : {}
  caller = hash_value(caller_hash, :requested_by)
  caller = caller_hash unless caller.is_a?(Hash)
  identity_hash = identity.is_a?(Hash) ? identity : {}
  extension = hash_value(caller_hash, :extension)
  type = first_present(
    hash_value(caller, :type),
    hash_value(identity_hash, :type),
    header_value(headers, 'x-legion-caller-type'),
    extension && 'extension'
  )

  raw_identity = first_present(
    hash_value(caller, :id),
    hash_value(caller, :canonical_name),
    hash_value(identity_hash, :id),
    hash_value(identity_hash, :canonical_name),
    hash_value(identity_hash, :identity),
    hash_value(identity_hash, :username),
    header_value(headers, 'x-legion-identity'),
    header_value(headers, 'x-legion-caller-identity'),
    hash_value(caller, :identity),
    hash_value(caller, :username),
    extension && "extension:#{extension}"
  )

  {
    identity: normalize_identity_value(raw_identity, type),
    type:     type
  }.compact
end

.normalize_identity_value(value, type) ⇒ Object 



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# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 46

def normalize_identity_value(value, type)
  return nil unless present?(value)

  text = value.to_s
  return text if text.include?(':') || text.include?('@')
  return "#{type}:#{text}" if type && GENERIC_IDENTITIES.include?(text)

  text
end

.present?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 74

def present?(value)
  !value.nil? && !(value.respond_to?(:empty?) && value.empty?)
end