feat(IDN): add support for international domains

Adjust constraints in AppConfig/RouterConfig

Author: HL70

model/model.go

@@ -45,7 +45,7 @@ type RouterConfig struct {
 	BodySize                 string      `key:"bodySize" constraint:"^[1-9]\\d*[kKmM]?$"`
 	ProxyRealIPCIDRs         []string    `key:"proxyRealIpCidrs" constraint:"^((([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\\/([0-9]|[1-2][0-9]|3[0-2]))?(\\s*,\\s*)?)+$"`
 	ErrorLogLevel            string      `key:"errorLogLevel" constraint:"^(info|notice|warn|error|crit|alert|emerg)$"`
-	PlatformDomain           string      `key:"platformDomain" constraint:"(?i)^([a-z0-9]+(-[a-z0-9]+)*\\.)+[a-z]{2,}$"`
+	PlatformDomain           string      `key:"platformDomain" constraint:"(?i)^([a-z0-9]+(-[a-z0-9]+)*\\.)+[a-z0-9]+(-*[a-z0-9]+)+$"`
 	UseProxyProtocol         bool        `key:"useProxyProtocol" constraint:"(?i)^(true|false)$"`
 	EnforceWhitelists        bool        `key:"enforceWhitelists" constraint:"(?i)^(true|false)$"`
 	DefaultWhitelist         []string    `key:"defaultWhitelist" constraint:"^((([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\\/([0-9]|[1-2][0-9]|3[0-2]))?(\\s*,\\s*)?)+$"`
@@ -103,12 +103,12 @@ func newGzipConfig() *GzipConfig {
 // AppConfig encapsulates the configuration for all routes to a single back end.
 type AppConfig struct {
 	Name           string
-	Domains        []string `key:"domains" constraint:"(?i)^((([a-z0-9]+(-[a-z0-9]+)*)|((\\*\\.)?[a-z0-9]+(-[a-z0-9]+)*\\.)+[a-z]{2,})(\\s*,\\s*)?)+$"`
+	Domains        []string `key:"domains" constraint:"(?i)^((([a-z0-9]+(-*[a-z0-9]+)*)|((\\*\\.)?[a-z0-9]+(-*[a-z0-9]+)*\\.)+[a-z0-9]+(-*[a-z0-9]+)+)(\\s*,\\s*)?)+$"`
 	Whitelist      []string `key:"whitelist" constraint:"^((([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\\/([0-9]|[1-2][0-9]|3[0-2]))?(\\s*,\\s*)?)+$"`
 	ConnectTimeout string   `key:"connectTimeout" constraint:"^[1-9]\\d*(ms|[smhdwMy])?$"`
 	TCPTimeout     string   `key:"tcpTimeout" constraint:"^[1-9]\\d*(ms|[smhdwMy])?$"`
 	ServiceIP      string
-	CertMappings   map[string]string `key:"certificates" constraint:"(?i)^((([a-z0-9]+(-[a-z0-9]+)*)|((\\*\\.)?[a-z0-9]+(-[a-z0-9]+)*\\.)+[a-z]{2,}):([a-z0-9]+(-[a-z0-9]+)*)(\\s*,\\s*)?)+$"`
+	CertMappings   map[string]string `key:"certificates" constraint:"(?i)^((([a-z0-9]+(-*[a-z0-9]+)*)|((\\*\\.)?[a-z0-9]+(-*[a-z0-9]+)*\\.)+[a-z0-9]+(-*[a-z0-9]+)+):([a-z0-9]+(-*[a-z0-9]+)*)(\\s*,\\s*)?)+$"`
 	Certificates   map[string]*Certificate
 	Available      bool
 }

model/model_validation_test.go

@@ -188,7 +188,7 @@ func TestInvalidAppDomains(t *testing.T) {
 }
 
 func TestValidAppDomains(t *testing.T) {
-	testValidValues(t, newTestAppConfig, "Domains", "domains", []string{"foobar", "foo-bar", "foobar.com", "foobar,foobar.com", "foobar, foobar.com", "*.foobar.com"})
+	testValidValues(t, newTestAppConfig, "Domains", "domains", []string{"foobar", "foo-bar", "foobar.com", "foobar,foobar.com", "foobar, foobar.com", "*.foobar.com", "xn--eckwd4c7c.xn--zckzah", "xn--80ahd1agd.ru", "xn--tst-qla.xn--knigsgsschen-lcb0w.de"})
 }
 
 func TestInvalidAppWhitelist(t *testing.T) {