1 files changed, 99 insertions, 0 deletions
diff --git a/dozentenmodul/src/main/java/org/openslx/dozmod/authentication/BrowserAuthenticator.java b/dozentenmodul/src/main/java/org/openslx/dozmod/authentication/BrowserAuthenticator.java
new file mode 100644
index 00000000..f6587edf
--- /dev/null
+++ b/dozentenmodul/src/main/java/org/openslx/dozmod/authentication/BrowserAuthenticator.java
@@ -0,0 +1,99 @@
+package org.openslx.dozmod.authentication;
+
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+import org.apache.hc.client5.http.ClientProtocolException;
+import org.apache.hc.core5.http.ParseException;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.apache.thrift.TException;
+import org.openslx.bwlp.thrift.iface.ClientSessionData;
+import org.openslx.bwlp.thrift.iface.TAuthorizationException;
+import org.openslx.bwlp.thrift.iface.TNotFoundException;
+import org.openslx.dozmod.authentication.ShibbolethEcp.ReturnCode;
+import org.openslx.dozmod.gui.control.QLabel;
+import org.openslx.dozmod.gui.helper.I18n;
+import org.openslx.dozmod.util.DesktopEnvironment;
+import org.openslx.thrifthelper.ThriftManager;
+import org.openslx.util.Util;
+
+import com.google.gson.JsonSyntaxException;
+
+/**
+ * Authenticator that relies on opening an external browser/website which should
+ * eventually lead to the provided token yielding a valid session.
+ */
+public class BrowserAuthenticator implements Authenticator {
+
+	/**
+	 * Logger instance for this class
+	 */
+	private final static Logger LOGGER = LogManager.getLogger(BrowserAuthenticator.class);
+
+	private static final String[] ANIMATION = { " -", " \\", " |", " /" };
+
+	private volatile boolean cancelled = false;
+
+	private final QLabel lblError;
+
+	public BrowserAuthenticator(QLabel lblError) {
+		this.lblError = lblError;
+	}
+
+	@Override
+	public void login(String authUrl, String accessToken, AuthenticatorCallback callback)
+			throws JsonSyntaxException, ClientProtocolException, ParseException,
+			MalformedURLException, URISyntaxException, IOException {
+		// try to login
+		DesktopEnvironment.openWebpageUri(new URI(authUrl));
+		Exception errEx = null;
+		ReturnCode ret = ReturnCode.GENERIC_ERROR;
+		AuthenticationData data = null;
+		String prefix = I18n.WINDOW.getString("Login.Label.error.continueBrowser");
+
+		// Try for ~10 minutes
+		for (int i = 1; i < 600 && !cancelled; ++i) {
+			Util.sleep(600 + i * 5);
+			lblError.setText(prefix + ANIMATION[i % ANIMATION.length]);
+			try {
+				ClientSessionData sess = ThriftManager.getMasterClient()
+						.getSessionFromAccessCode(accessToken);
+				if (sess != null) {
+					data = new AuthenticationData(sess.authToken, sess.sessionId, sess.satellites);
+					ret = ReturnCode.NO_ERROR;
+					break;
+				}
+
+			} catch (TNotFoundException nf) {
+				continue; // Keep waiting
+			} catch (TAuthorizationException ex) {
+				errEx = ex;
+				break;
+			} catch (TException e) {
+				LOGGER.warn("Cannot get login state for browser-based login", e);
+			}
+		}
+		if (cancelled)
+			return;
+		if (data == null && errEx == null) {
+			// Loop timed out
+			errEx = new TException("Timeout, try again");
+		}
+
+		callback.postLogin(ret, data, errEx);
+	}
+
+	@Override
+	public void cancel() {
+		cancelled = true;
+	}
+
+	@Override
+	protected void finalize() throws Throwable {
+		super.finalize();
+		cancel();
+	}
+}