From 1faf201e8608dfa4d7af3460fd3d1fc7ebec398b Mon Sep 17 00:00:00 2001 From: talasila Date: Tue, 7 Feb 2017 11:47:55 -0500 Subject: Initial OpenECOMP Portal SDK commit Change-Id: I66a3491600a4b9ea241128dc29267eed6a78ed76 Signed-off-by: talasila --- .../portalsdk/analytics/util/XSSFilter.java | 90 ++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 ecomp-sdk/sdk-analytics/src/main/java/org/openecomp/portalsdk/analytics/util/XSSFilter.java (limited to 'ecomp-sdk/sdk-analytics/src/main/java/org/openecomp/portalsdk/analytics/util/XSSFilter.java') diff --git a/ecomp-sdk/sdk-analytics/src/main/java/org/openecomp/portalsdk/analytics/util/XSSFilter.java b/ecomp-sdk/sdk-analytics/src/main/java/org/openecomp/portalsdk/analytics/util/XSSFilter.java new file mode 100644 index 00000000..e6d01994 --- /dev/null +++ b/ecomp-sdk/sdk-analytics/src/main/java/org/openecomp/portalsdk/analytics/util/XSSFilter.java @@ -0,0 +1,90 @@ +/*- + * ================================================================================ + * eCOMP Portal SDK + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property + * ================================================================================ + * 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 + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * 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. + * ================================================================================ + */ +package org.openecomp.portalsdk.analytics.util; + + /** + * + * This class is used to filter javascript tags to avoid XSS attacks. + */ +public class XSSFilter { + + // private static String[] filterChars = { "<", ">", "<", ">", "\"", "\\", "0x" }; +// private static String[] replacementChars = { " ", " ", " ", " ", "'", "/", "0 x" }; + +/* public static synchronized String filterRequest(String param) { + String value = param; + + if (param != null) { + + for (int i = 0; i < filterChars.length; i++) { + value = filterCharacters(filterChars[i], replacementChars[i], + value); + } + + } + + return value; + + } +*/ + + public static synchronized String filterRequestOnlyScript(String param) { + String value = ""; + value = nvl(param); + value = value.replaceAll("<[\\s]*[sS][\\s]*[cC][\\s]*[rR][\\s]*[iI][\\s]*[pP][\\s]*[tT][\\s]*>", ""); + value = value.replaceAll("", ""); + value = value.replaceAll("[\\s]*[jJ][\\s]*[aA][\\s]*[vV][\\s]*[aA][\\s]*[sS][\\s]*[cC][\\s]*[rR][\\s]*[iI][\\s]*[pP][\\s]*[tT][\\s]*", ""); + return value; + } + public static synchronized String filterRequest (String param) { + String value = ""; + value = nvl(param); + value = value.replaceAll("<[\\s]*[sS][\\s]*[cC][\\s]*[rR][\\s]*[iI][\\s]*[pP][\\s]*[tT][\\s]*>", ""); + value = value.replaceAll("", ""); + value = value.replaceAll("[\\s]*[jJ][\\s]*[aA][\\s]*[vV][\\s]*[aA][\\s]*[sS][\\s]*[cC][\\s]*[rR][\\s]*[iI][\\s]*[pP][\\s]*[tT][\\s]*", ""); + value = value.replaceAll("[\\s]*<", ""); + value = value.replaceAll("[\\s]*>", ""); + + return value; + } + +// private static synchronized String filterCharacters(String originalChar, String newChar, +// String param) { +// StringBuffer sb = new StringBuffer(param); +// +// for (int position = param.toLowerCase().indexOf(originalChar); position >= 0;) { +// sb.replace(position, position + originalChar.length(), newChar); +// param = sb.toString(); +// position = param.toLowerCase().indexOf(originalChar); +// } +// +// return sb.toString(); +// } + + public static void main (String args[]) { + String value = XSSFilter.filterRequest("\na\nl\ne\nr\nt\n('sundar');javascript:alert('Sundar');"); + int i = Integer.parseInt("8989"); + System.out.println(value); + } + + private static String nvl(String s) { + return (s == null) ? "" : s; + } +} -- cgit 1.2.3-korg