Files
clinch/config/initializers/webauthn.rb

71 lines
2.7 KiB
Ruby

# WebAuthn configuration for Clinch Identity Provider
WebAuthn.configure do |config|
# Relying Party name (displayed in authenticator prompts)
# CLINCH_HOST should include protocol (https://) for WebAuthn
origin_host = ENV.fetch("CLINCH_HOST", "http://localhost")
config.allowed_origins = [origin_host]
# Relying Party ID (must match origin domain without protocol)
# Extract domain from origin for RP ID if CLINCH_RP_ID not set
if ENV["CLINCH_RP_ID"].present?
config.rp_id = ENV["CLINCH_RP_ID"]
else
# Extract registrable domain from CLINCH_HOST using PublicSuffix
origin_uri = URI.parse(origin_host)
if origin_uri.host
begin
# Use PublicSuffix to get the registrable domain (e.g., "aapamilne.com" from "auth.aapamilne.com")
domain = PublicSuffix.parse(origin_uri.host)
config.rp_id = domain.domain || origin_uri.host
rescue PublicSuffix::DomainInvalid => e
Rails.logger.warn "WebAuthn: Failed to parse domain '#{origin_uri.host}': #{e.message}, using host as fallback"
config.rp_id = origin_uri.host
end
else
Rails.logger.error "WebAuthn: Could not extract host from CLINCH_HOST '#{origin_host}'"
config.rp_id = "localhost"
end
end
# For development, we also allow localhost with common ports and without port
if Rails.env.development?
config.allowed_origins += [
"http://localhost",
"http://localhost:3000",
"http://localhost:3035",
"http://127.0.0.1",
"http://127.0.0.1:3000",
"http://127.0.0.1:3035"
]
end
# Relying Party name shown in authenticator prompts
config.rp_name = ENV.fetch("CLINCH_RP_NAME", "Clinch Identity Provider")
# Credential timeout in milliseconds (60 seconds)
# Users have 60 seconds to complete the authentication ceremony
config.credential_options_timeout = 60_000
# Supported algorithms for credential creation
# ES256: ECDSA with P-256 and SHA-256 (most common, secure)
# RS256: RSASSA-PKCS1-v1_5 with SHA-256 (hardware keys often use this)
config.algorithms = ["ES256", "RS256"]
# Encoding for credential IDs and other data
config.encoding = :base64url
# Custom verifier for additional security checks if needed
# config.verifier = MyCustomVerifier.new
end
# Security note: WebAuthn requires HTTPS in production
# The WebAuthn API will not work on non-secure origins in production browsers
# Ensure CLINCH_HOST uses https:// in production environments
# Example environment variables:
# CLINCH_HOST=https://auth.example.com
# CLINCH_RP_ID=example.com
# CLINCH_RP_NAME="Example Company Identity Provider"
# CLINCH_WEBAUTHN_ATTESTATION=none
# CLINCH_WEBAUTHN_USER_VERIFICATION=preferred
# CLINCH_WEBAUTHN_RESIDENT_KEY=preferred