envutil

func DiscoverProviders ¶

func DiscoverProviders(prefix, suffix string) []string

DiscoverProviders scans environment variables to find configured providers. It looks for environment variables matching the pattern: <prefix><PROVIDER_ID><suffix> For example, with prefix="SAML_PROVIDERS_" and suffix="_ENABLED", it will find "ENTRA_TMIDEV_SAML" from "SAML_PROVIDERS_ENTRA_TMIDEV_SAML_ENABLED=true"

func Get ¶

func Get(key, fallback string) string

Get retrieves an environment variable with a fallback value. Returns the environment variable value if set and non-empty, otherwise returns the fallback.

func ProviderIDToKey ¶

func ProviderIDToKey(providerID string) string

ProviderIDToKey converts an environment variable provider ID to a provider key. It converts to lowercase and replaces underscores with hyphens. For example: "ENTRA_TMIDEV_SAML" -> "entra-tmidev-saml"

func ScanPrefixedMap ¶

func ScanPrefixedMap(prefix string) map[string]string

ScanPrefixedMap returns a map of every environment variable whose name starts with prefix, keyed by the lowercased remainder of the name and valued by the variable's value. For example, with prefix "OAUTH_PROVIDERS_GOOGLE_USERINFO_CLAIMS_":

OAUTH_PROVIDERS_GOOGLE_USERINFO_CLAIMS_SUBJECT_CLAIM=sub  -> {"subject_claim": "sub"}
OAUTH_PROVIDERS_GOOGLE_USERINFO_CLAIMS_EMAIL_CLAIM=email  -> {"email_claim": "email"}

Returns a non-nil empty map when nothing matches. Used for OAuth userinfo claim mappings and additional OAuth parameters, which are dynamic-cardinality (the concrete keys are only known at runtime).