Detect data URLs with suffix in mime type (#213)

Author: RTLcoil

cloudinary-core/src/main/java/com/cloudinary/utils/StringUtils.java

@@ -209,7 +209,7 @@ public static String read(InputStream in) throws IOException {
     }
 
     public static boolean isRemoteUrl(String file) {
-        return file.matches("ftp:.*|https?:.*|s3:.*|gs:.*|data:([\\w-]+/[\\w-]+)?(;[\\w-]+=[\\w-]+)*;base64,([a-zA-Z0-9/+\n=]+)");
+        return file.matches("ftp:.*|https?:.*|s3:.*|gs:.*|data:([\\w-]+/[\\w-]+(\\+[\\w-]+)?)?(;[\\w-]+=[\\w-]+)*;base64,([a-zA-Z0-9/+\n=]+)");
     }
 
     /**

cloudinary-test-common/src/main/java/com/cloudinary/test/AbstractUploaderTest.java

@@ -137,7 +137,8 @@ public void testIsRemoteUrl() {
                 "gs://cloudinary/images/old_logo.png",
                 "data:image/gif;charset=utf8;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7",
                 "data:image/gif;param1=value1;param2=value2;base64," +
-                        "R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7"};
+                        "R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7",
+                "data:image/svg+xml;charset=utf-8;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPg"};
 
         for (String url : urls) {
             assertTrue(isRemoteUrl(url));