In barcode generaotor (zxing.appspot.com), generate barcode upon pressing enter....

[zxing.git] / zxing.appspot.com / generator / src / com / google / zxing / web / generator / client / Validators.java

diff --git a/zxing.appspot.com/generator/src/com/google/zxing/web/generator/client/Validators.java b/zxing.appspot.com/generator/src/com/google/zxing/web/generator/client/Validators.java
index 4f14324..ef6c629 100644 (file)
--- a/zxing.appspot.com/generator/src/com/google/zxing/web/generator/client/Validators.java
+++ b/zxing.appspot.com/generator/src/com/google/zxing/web/generator/client/Validators.java
@@ -16,9 +16,6 @@
 
 package com.google.zxing.web.generator.client;
 
-import java.net.URL;
-import java.net.MalformedURLException;
-
 /**
  * Helpers methods to check for phone numbers, email addresses, and URL. Other
  * general purpose check methods should go here as well.
@@ -37,12 +34,22 @@ public final class Validators {
   }
   
   public static void validateUrl(String url) throws GeneratorException {
-    try {
-      new URL(url);
-    } catch (MalformedURLException mue) {
+    if (!isBasicallyValidURI(url)) {
       throw new GeneratorException("URL is not valid.");
     }
   }
+
+  private static boolean isBasicallyValidURI(String uri) {
+    if (uri == null || uri.indexOf(' ') >= 0 || uri.indexOf('\n') >= 0) {
+      return false;
+    }
+    int period = uri.indexOf('.');
+    // Look for period in a domain but followed by at least a two-char TLD
+    if (period >= uri.length() - 2) {
+      return false;
+    }
+    return period >= 0 || uri.indexOf(':') >= 0;
+  }
   
   public static void validateEmail(String email) throws GeneratorException {
     //FIXME: we can have a better check for email here.