[OOM CERT-SERVICE-CLIENT] Add URI validator (RFC 3986)

Issue-ID: OOM-2632
Signed-off-by: Tomasz Wrobel <tomasz.wrobel@nokia.com>
Change-Id: Ia71d413a56f65b0a51ff5c2e7522035f41e06faf

2 files changed, 53 insertions, 0 deletions

diff --git a/certServiceClient/src/main/java/org/onap/oom/certservice/client/configuration/validation/UriValidator.java b/certServiceClient/src/main/java/org/onap/oom/certservice/client/configuration/validation/UriValidator.java
new file mode 100644
index 00000000..6971d8ea
--- /dev/null
+++ b/certServiceClient/src/main/java/org/onap/oom/certservice/client/configuration/validation/UriValidator.java
@@ -0,0 +1,50 @@
+/*
+ * ============LICENSE_START=======================================================
+ * oom-certservice-client
+ * ================================================================================
+ * Copyright (C) 2020 Nokia. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.oom.certservice.client.configuration.validation;
+
+/**
+ * Compliant with the RFC3986
+ */
+public final class UriValidator {
+
+    private UriValidator() {
+    }
+
+    private static final String RFC3986_URI_MATCH_PATTERN = "([A-Za-z][A-Za-z0-9+\\-.]*):(?:(//)(?:((?:[A-Za-z0-9\\-"
+        + "._~!$&'()*+,;=:]|%[0-9A-Fa-f]{2})*)@)?((?:\\[(?:(?:(?:(?:[0-9A-Fa-f]{1,4}:){6}|::(?:[0-9A-Fa-f]{1,4}:){5}|"
+        + "(?:[0-9A-Fa-f]{1,4})?::(?:[0-9A-Fa-f]{1,4}:){4}|(?:(?:[0-9A-Fa-f]{1,4}:){0,1}[0-9A-Fa-f]{1,4})?::"
+        + "(?:[0-9A-Fa-f]{1,4}:){3}|(?:(?:[0-9A-Fa-f]{1,4}:){0,2}[0-9A-Fa-f]{1,4})?::(?:[0-9A-Fa-f]{1,4}:){2}|(?:"
+        + "(?:[0-9A-Fa-f]{1,4}:){0,3}[0-9A-Fa-f]{1,4})?::[0-9A-Fa-f]{1,4}:|(?:(?:[0-9A-Fa-f]{1,4}:){0,"
+        + "4}[0-9A-Fa-f]{1,4})?::)(?:[0-9A-Fa-f]{1,4}:[0-9A-Fa-f]{1,4}|(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\"
+        + ".){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))|(?:(?:[0-9A-Fa-f]{1,4}:){0,5}[0-9A-Fa-f]{1,4})"
+        + "?::[0-9A-Fa-f]{1,4}|(?:(?:[0-9A-Fa-f]{1,4}:){0,6}[0-9A-Fa-f]{1,4})?::)|[Vv][0-9A-Fa-f]+\\.[A-Za-z0-9\\-"
+        + "._~!$&'()*+,;=:]+)\\]|(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}"
+        + "(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|(?:[A-Za-z0-9\\-._~!$&'()*+,;=]|%[0-9A-Fa-f]{2})*))(?::([0-9]*))?"
+        + "((?:/(?:[A-Za-z0-9\\-._~!$&'()*+,;=:@]|%[0-9A-Fa-f]{2})*)*)|/((?:(?:[A-Za-z0-9\\-._~!$&'()*+,;"
+        + "=:@]|%[0-9A-Fa-f]{2})+(?:/(?:[A-Za-z0-9\\-._~!$&'()*+,;=:@]|%[0-9A-Fa-f]{2})*)*)?)|((?:[A-Za-z0-9\\-"
+        + "._~!$&'()*+,;=:@]|%[0-9A-Fa-f]{2})+(?:/(?:[A-Za-z0-9\\-._~!$&'()*+,;=:@]|%[0-9A-Fa-f]{2})*)*)|)(?:\\?("
+        + "(?:[A-Za-z0-9\\-._~!$&'()*+,;=:@/?]|%[0-9A-Fa-f]{2})*))?(?:\\#((?:[A-Za-z0-9\\-._~!$&'()*+,;"
+        + "=:@/?]|%[0-9A-Fa-f]{2})*))?";
+
+    public static boolean isValidUri(String uri) {
+        return uri.matches(RFC3986_URI_MATCH_PATTERN);
+    }
+}
diff --git a/certServiceClient/src/main/java/org/onap/oom/certservice/client/configuration/validation/ValidatorsFactory.java b/certServiceClient/src/main/java/org/onap/oom/certservice/client/configuration/validation/ValidatorsFactory.java
index 771ce3f2..8eeac74a 100644
--- a/certServiceClient/src/main/java/org/onap/oom/certservice/client/configuration/validation/ValidatorsFactory.java
+++ b/certServiceClient/src/main/java/org/onap/oom/certservice/client/configuration/validation/ValidatorsFactory.java
@@ -45,4 +45,7 @@ public class ValidatorsFactory {
             .anyMatch(name -> name.equals(outputType));
     }
 
+    public Predicate<String> uriValidator() {
+        return UriValidator::isValidUri;
+    }
 }