1 files changed, 88 insertions, 0 deletions
diff --git a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/PathUtil.java b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/PathUtil.java
new file mode 100644
index 00000000..a4034410
--- /dev/null
+++ b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/PathUtil.java
@@ -0,0 +1,88 @@
+/**
+ * -
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * <p>
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.dmaap.datarouter.node;
+
+/**
+ * FORTIFY SCAN FIXES
+ * <p>This Utility is used for Fortify fixes. It Validates the path url formed from
+ *  the string passed in the request parameters.</p>
+ *
+ */
+class PathUtil {
+
+    /**
+     * This method takes String as the parameter and return the filtered path string.
+     * @param aString String to clean
+     * @return A cleaned String
+     */
+    static String cleanString(String aString) {
+        if (aString == null) return null;
+        String cleanString = "";
+        for (int i = 0; i < aString.length(); ++i) {
+            cleanString += cleanChar(aString.charAt(i));
+        }
+        return cleanString;
+    }
+
+    /**
+     * This method filters the valid special characters in path string.
+     * @param aChar The char to be cleaned
+     * @return The cleaned char
+     */
+    private static char cleanChar(char aChar) {
+        // 0 - 9
+        for (int i = 48; i < 58; ++i) {
+            if (aChar == i) return (char) i;
+        }
+        // 'A' - 'Z'
+        for (int i = 65; i < 91; ++i) {
+            if (aChar == i) return (char) i;
+        }
+        // 'a' - 'z'
+        for (int i = 97; i < 123; ++i) {
+            if (aChar == i) return (char) i;
+        }
+        // other valid characters
+        switch (aChar) {
+            case '/':
+                return '/';
+            case '.':
+                return '.';
+            case '-':
+                return '-';
+            case ':':
+                return ':';
+            case '?':
+                return '?';
+            case '&':
+                return '&';
+            case '=':
+                return '=';
+            case '#':
+                return '#';
+            case '_':
+                return '_';
+            case ' ':
+                return ' ';
+        }
+        return '%';
+    }
+}