Class: Llmemory::MCP::Authentication

Inherits:
Object
  • Object
show all
Defined in:
lib/llmemory/mcp/authentication.rb

Overview

Rack middleware for token-based authentication Validates requests against MCP_TOKEN environment variable

Constant Summary collapse

UNAUTHORIZED_RESPONSE = 
[
  401,
  { "Content-Type" => "application/json" },
  ['{"error":"Unauthorized: Invalid or missing token"}']
].freeze

Instance Method Summary collapse

Constructor Details

#initialize(app, token: nil) ⇒ Authentication

Returns a new instance of Authentication.



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# File 'lib/llmemory/mcp/authentication.rb', line 14

def initialize(app, token: nil)
  @app = app
  @token = token || ENV["MCP_TOKEN"]
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/llmemory/mcp/authentication.rb', line 19

def call(env)
  # If no token is configured, skip authentication
  return @app.call(env) unless @token

  # Check for valid token
  return UNAUTHORIZED_RESPONSE unless valid_token?(env)

  @app.call(env)
end