Massive package refactoring

[lgpl/argeo-commons.git] / org.argeo.cms / src / org / argeo / cms / osgi / useradmin / OsUserUtils.java

diff --git a/org.argeo.cms/src/org/argeo/cms/osgi/useradmin/OsUserUtils.java b/org.argeo.cms/src/org/argeo/cms/osgi/useradmin/OsUserUtils.java
new file mode 100644 (file)
index 0000000..f718780
--- /dev/null
+++ b/org.argeo.cms/src/org/argeo/cms/osgi/useradmin/OsUserUtils.java
@@ -0,0 +1,54 @@
+package org.argeo.cms.osgi.useradmin;
+
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.security.NoSuchAlgorithmException;
+import java.security.URIParameter;
+
+import javax.security.auth.Subject;
+import javax.security.auth.login.Configuration;
+import javax.security.auth.login.LoginContext;
+import javax.security.auth.login.LoginException;
+
+/** Log in based on JDK-provided OS integration. */
+public class OsUserUtils {
+       private final static String LOGIN_CONTEXT_USER_NIX = "USER_NIX";
+       private final static String LOGIN_CONTEXT_USER_NT = "USER_NT";
+
+       public static String getOsUsername() {
+               return System.getProperty("user.name");
+       }
+
+       public static LoginContext loginAsSystemUser(Subject subject) {
+               try {
+                       URL jaasConfigurationUrl = OsUserUtils.class.getClassLoader()
+                                       .getResource("org/argeo/osgi/useradmin/jaas-os.cfg");
+                       URIParameter uriParameter = new URIParameter(jaasConfigurationUrl.toURI());
+                       Configuration jaasConfiguration = Configuration.getInstance("JavaLoginConfig", uriParameter);
+                       LoginContext lc = new LoginContext(isWindows() ? LOGIN_CONTEXT_USER_NT : LOGIN_CONTEXT_USER_NIX, subject,
+                                       null, jaasConfiguration);
+                       lc.login();
+                       return lc;
+               } catch (URISyntaxException | NoSuchAlgorithmException | LoginException e) {
+                       throw new RuntimeException("Cannot login as system user", e);
+               }
+       }
+
+       public static void main(String args[]) {
+               Subject subject = new Subject();
+               LoginContext loginContext = loginAsSystemUser(subject);
+               System.out.println(subject);
+               try {
+                       loginContext.logout();
+               } catch (LoginException e) {
+                       // silent
+               }
+       }
+
+       private static boolean isWindows() {
+               return System.getProperty("os.name").startsWith("Windows");
+       }
+
+       private OsUserUtils() {
+       }
+}