Autofix Rubocop Style/CaseLikeIf (#23756)

.rubocop_todo.yml

@@ -1031,12 +1031,6 @@ Style/CaseEquality:
   Exclude:
     - 'config/initializers/trusted_proxies.rb'
 
-# This cop supports unsafe autocorrection (--autocorrect-all).
-# Configuration parameters: MinBranchesCount.
-Style/CaseLikeIf:
-  Exclude:
-    - 'app/controllers/concerns/signature_verification.rb'
-
 # This cop supports safe autocorrection (--autocorrect).
 # Configuration parameters: AllowedMethods, AllowedPatterns.
 # AllowedMethods: ==, equal?, eql?

app/controllers/concerns/signature_verification.rb

@@ -180,14 +180,15 @@ module SignatureVerification
 
   def build_signed_string
     signed_headers.map do |signed_header|
-      if signed_header == Request::REQUEST_TARGET
+      case signed_header
+      when Request::REQUEST_TARGET
         "#{Request::REQUEST_TARGET}: #{request.method.downcase} #{request.path}"
-      elsif signed_header == '(created)'
+      when '(created)'
         raise SignatureVerificationError, 'Invalid pseudo-header (created) for rsa-sha256' unless signature_algorithm == 'hs2019'
         raise SignatureVerificationError, 'Pseudo-header (created) used but corresponding argument missing' if signature_params['created'].blank?
 
         "(created): #{signature_params['created']}"
-      elsif signed_header == '(expires)'
+      when '(expires)'
         raise SignatureVerificationError, 'Invalid pseudo-header (expires) for rsa-sha256' unless signature_algorithm == 'hs2019'
         raise SignatureVerificationError, 'Pseudo-header (expires) used but corresponding argument missing' if signature_params['expires'].blank?