Release 0.7.5 (#70)

* Resolve issue with opaque tokens not being parsed correctly

* Increase test coverage

* Further improvements to test coverage and code quality

* Add new providers.

* fixup! Add new providers.

* Cleanup.

* fixup! Cleanup.

* fixup! fixup! Cleanup.

* fixup! fixup! fixup! Cleanup.

* fixup! fixup! fixup! fixup! Cleanup.

* Memory management optimisation

24 bytes per Put < 256-4096 bytes per buffer allocation avoided (10-170x difference)

* Pooling cleanup.

internal/providers/registry.go

@@ -115,7 +115,14 @@ func (r *ProviderRegistry) detectProviderUnsafe(issuerURL string) OIDCProvider {
 	if err != nil {
 		return nil
 	}
-	host := normalizedURL.Host
+
+	// Check if the URL has a valid scheme and host
+	if normalizedURL.Scheme == "" || normalizedURL.Host == "" {
+		return nil
+	}
+
+	// Convert host to lowercase for case-insensitive matching
+	host := strings.ToLower(normalizedURL.Host)
 
 	for _, p := range r.providers {
 		switch p.GetType() {
@@ -127,6 +134,30 @@ func (r *ProviderRegistry) detectProviderUnsafe(issuerURL string) OIDCProvider {
 			if strings.Contains(host, "login.microsoftonline.com") || strings.Contains(host, "sts.windows.net") {
 				return p
 			}
+		case ProviderTypeGitHub:
+			if strings.Contains(host, "github.com") {
+				return p
+			}
+		case ProviderTypeAuth0:
+			if strings.Contains(host, ".auth0.com") {
+				return p
+			}
+		case ProviderTypeOkta:
+			if strings.Contains(host, ".okta.com") || strings.Contains(host, ".oktapreview.com") || strings.Contains(host, ".okta-emea.com") {
+				return p
+			}
+		case ProviderTypeKeycloak:
+			if strings.Contains(host, "keycloak") || strings.Contains(normalizedURL.Path, "/auth/realms/") {
+				return p
+			}
+		case ProviderTypeAWSCognito:
+			if strings.Contains(host, "cognito-idp") && strings.Contains(host, ".amazonaws.com") {
+				return p
+			}
+		case ProviderTypeGitLab:
+			if strings.Contains(host, "gitlab.com") {
+				return p
+			}
 		}
 	}