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 



62
63
64
 
# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 62

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

.hash_value(hash, key) ⇒ Object 



66
67
68
69
70
71
72
 
# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 66

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 



74
75
76
77
78
 
# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 74

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

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

.integer_header(headers, key) ⇒ Object 



80
81
82
83
84
85
86
 
# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 80

def integer_header(headers, key)
  raw = header_value(headers, key)
  return nil if raw.nil?

  int = raw.to_i
  int.positive? ? int : nil
end

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



13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
 
# 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(identity_hash, :type),
    hash_value(identity_hash, :kind),
    header_value(headers, 'x-legion-identity-kind'),
    header_value(headers, 'x-legion-caller-type'),
    hash_value(caller, :type),
    hash_value(caller, :kind),
    extension && 'extension'
  )

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

  {
    identity:     normalize_identity_value(raw_identity, type),
    type:         type,
    principal_id: integer_header(headers, 'x-legion-identity-db-principal-id'),
    identity_id:  integer_header(headers, 'x-legion-identity-db-identity-id')
  }.compact
end

.normalize_identity_value(value, type) ⇒ Object 



52
53
54
55
56
57
58
59
60
 
# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 52

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) 


88
89
90
 
# File 'lib/legion/extensions/llm/ledger/helpers/caller_identity.rb', line 88

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