From 875fbf21497ef5c8d74d5b7d88e2bbabede5aa3c Mon Sep 17 00:00:00 2001
From: Niki <david.roulet@uclouvain.be>
Date: Fri, 22 Mar 2019 14:43:27 +0100
Subject: [PATCH] new: proxy

---
 changelog.md                    |  4 ++
 src/be/nikiroo/utils/Proxy.java | 92 +++++++++++++++++++++++++++++++++
 2 files changed, 96 insertions(+)
 create mode 100755 src/be/nikiroo/utils/Proxy.java

diff --git a/changelog.md b/changelog.md
index 6bd05cc..202b37d 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,9 @@
 # nikiroo-utils
 
+## Version WIP
+
+- new: Proxy selector
+
 ## Version 4.5.1
 
 - Progress: fix deadlock in rare cases
diff --git a/src/be/nikiroo/utils/Proxy.java b/src/be/nikiroo/utils/Proxy.java
new file mode 100755
index 0000000..fa59c73
--- /dev/null
+++ b/src/be/nikiroo/utils/Proxy.java
@@ -0,0 +1,92 @@
+package be.nikiroo.utils;
+
+import java.net.Authenticator;
+import java.net.PasswordAuthentication;
+
+/**
+ * Simple proxy helper to select a default internet proxy.
+ * 
+ * @author niki
+ */
+public class Proxy {
+	/**
+	 * Use the system proxy.
+	 */
+	static public void useSystemProxy() {
+		useSystemProxy(null, null);
+	}
+
+	/**
+	 * Use the system proxy with the given login/password, for authenticated
+	 * proxies.
+	 * 
+	 * @param user
+	 *            the user name or login
+	 * @param password
+	 *            the password
+	 */
+	static public void useSystemProxy(String user, String password) {
+		System.setProperty("java.net.useSystemProxies", "true");
+		auth(user, password);
+	}
+
+	/**
+	 * Use the give proxy.
+	 * 
+	 * @param host
+	 *            the proxy host name or IP address
+	 * @param port
+	 *            the port to use
+	 */
+	static public void useProxy(String host, int port) {
+		useProxy(host, port, null, null);
+	}
+
+	/**
+	 * Use the given proxy with the given login/password, for authenticated
+	 * proxies.
+	 * 
+	 * @param user
+	 *            the user name or login
+	 * @param password
+	 *            the password
+	 * @param host
+	 *            the proxy host name or IP address
+	 * @param port
+	 *            the port to use
+	 * @param user
+	 *            the user name or login
+	 * @param password
+	 *            the password
+	 */
+	static public void useProxy(String host, int port, String user,
+			String password) {
+		System.setProperty("http.proxyHost", "proxy.stluc.ucl.ac.be");
+		System.setProperty("http.proxyPort", "8080");
+		auth(user, password);
+	}
+
+	/**
+	 * Select the default authenticator for proxy requests.
+	 * 
+	 * @param user
+	 *            the user name or login
+	 * @param password
+	 *            the password
+	 */
+	static private void auth(final String user, final String password) {
+		if (user != null && password != null) {
+			Authenticator proxy = new Authenticator() {
+				@Override
+				protected PasswordAuthentication getPasswordAuthentication() {
+					if (getRequestorType() == RequestorType.PROXY) {
+						return new PasswordAuthentication(user,
+								password.toCharArray());
+					}
+					return null;
+				}
+			};
+			Authenticator.setDefault(proxy);
+		}
+	}
+}
-- 
2.27.0