Merge pull request #22 from tybritten/master

Add FreshChat URN

Author: nicpottier

urns/urns.go

@@ -23,6 +23,9 @@ const (
 	// FCMScheme is the scheme used for Firebase Cloud Messaging identifiers
 	FCMScheme string = "fcm"
 
+	// FreshChatScheme is the scheme used for FreshChat Cloud Messaging identifiers
+	FreshChatScheme string = "freshchat"
+
 	// JiochatScheme is the scheme used for Jiochat identifiers
 	JiochatScheme string = "jiochat"
 
@@ -60,6 +63,7 @@ var ValidSchemes = map[string]bool{
 	ExternalScheme:  true,
 	FacebookScheme:  true,
 	FCMScheme:       true,
+	FreshChatScheme: true,
 	JiochatScheme:   true,
 	LineScheme:      true,
 	TelegramScheme:  true,
@@ -84,6 +88,7 @@ var emailRegex = regexp.MustCompile(`^[^\s@]+@[^\s@]+$`)
 var viberRegex = regexp.MustCompile(`^[a-zA-Z0-9_=/+]{1,24}$`)
 var lineRegex = regexp.MustCompile(`^[a-zA-Z0-9_]{1,36}$`)
 var allDigitsRegex = regexp.MustCompile(`^[0-9]+$`)
+var freshchatRegex = regexp.MustCompile(`^[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}/[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}$`)
 
 // URN represents a Universal Resource Name, we use this for contact identifiers like phone numbers etc..
 type URN string
@@ -249,9 +254,15 @@ func (u URN) Validate() error {
 		if !allDigitsRegex.MatchString(path) {
 			return fmt.Errorf("invalid whatsapp id: %s", path)
 		}
-	}
 
+	case FreshChatScheme:
+		// validate path and query is a uuid
+		if !freshchatRegex.MatchString(path) {
+			return fmt.Errorf("invalid freshchat id: %s", path)
+		}
+	}
 	return nil // anything goes for external schemes
+
 }
 
 // Scheme returns the scheme portion for the URN

urns/urns_test.go

@@ -212,7 +212,7 @@ func TestValidate(t *testing.T) {
 
 		// invalid tel numbers
 		{"tel:07883 83383", "invalid tel number"}, // can't have spaces
-		{"tel:", "cannot be empty"},          // need a path
+		{"tel:", "cannot be empty"},               // need a path
 
 		// twitter handles
 		{"twitter:jimmyjo", ""},
@@ -259,6 +259,11 @@ func TestValidate(t *testing.T) {
 		{"whatsapp:12354", ""},
 		{"whatsapp:abcde", "invalid whatsapp id"},
 		{"whatsapp:+12067799294", "invalid whatsapp id"},
+
+		// freschat has to be two uuids separated by a colon
+		{"freshchat:6a2f41a3-c54c-fce8-32d2-0324e1c32e22/6a2f41a3-c54c-fce8-32d2-0324e1c32e22", ""},
+		{"freshchat:6a2f41a3-c54c-fce8-32d2-0324e1c32e22", "invalid freshchat id"},
+		{"freshchat:+12067799294", "invalid freshchat id"},
 	}
 
 	for _, tc := range testCases {