/**
* Copyright (c) Istituto Nazionale di Fisica Nucleare (INFN). 2006-2016
*
* 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.glite.security.voms.admin.util;
import java.net.URL;
import java.net.URLConnection;
public class URLContentFetcher {
private URLContentFetcher() {
}
public static final String fetchTextFromURL(String url) {
if (url == null)
return null;
try {
URL daURL = new URL(url);
URLConnection conn = daURL.openConnection();
conn.connect();
String contentType = conn.getContentType();
if (!contentType.startsWith("text")) {
return null;
} else {
// FIXME: leverage CONTENT length,
StringBuilder text = new StringBuilder();
int c;
// FIXME: implement more efficient AUP fetching
while ((c = conn.getInputStream().read()) != -1) {
text.append((char) c);
}
return text.toString();
}
} catch (Throwable e) {
return null;
}
}
}