1 files changed, 62 insertions, 0 deletions
diff --git a/src/main/java/org/openslx/imagemaster/util/UserUtil.java b/src/main/java/org/openslx/imagemaster/util/UserUtil.java
new file mode 100644
index 0000000..2e447f3
--- /dev/null
+++ b/src/main/java/org/openslx/imagemaster/util/UserUtil.java
@@ -0,0 +1,62 @@
+package org.openslx.imagemaster.util;
+
+import java.sql.SQLException;
+
+import org.openslx.bwlp.thrift.iface.AuthorizationError;
+import org.openslx.bwlp.thrift.iface.Role;
+import org.openslx.bwlp.thrift.iface.TAuthorizationException;
+import org.openslx.bwlp.thrift.iface.TNotFoundException;
+import org.openslx.bwlp.thrift.iface.UserInfo;
+import org.openslx.imagemaster.db.mappers.DbUser;
+
+public class UserUtil
+{
+
+	/**
+	 * Given a list of users, return the first one that isn't anonymous, which means they opted in
+	 * for global image sharing.
+	 */
+	public static UserInfo getFirstPublishingUser( UserInfo... user )
+	{
+		if ( user == null )
+			return null;
+		for ( UserInfo u : user ) {
+			if ( Util.isEmpty( u.userId ) )
+				continue;
+			try {
+				u = DbUser.getUserInfo( u.userId );
+			} catch ( SQLException | TNotFoundException e ) {
+				continue;
+			}
+			if ( !Util.isEmpty( u.eMail )
+					&& ( !Util.isEmpty( u.firstName ) || !Util.isEmpty( u.lastName ) ) ) {
+				return u;
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * Given a list of users, return the first one that isn't anonymous, which means they opted in
+	 * for global image sharing. If none matches, return the dummy user.
+	 */
+	public static UserInfo getFirstPublishingUserOrDummy( UserInfo... user )
+	{
+		UserInfo ret = getFirstPublishingUser( user );
+		if ( ret != null )
+			return ret;
+		try {
+			return DbUser.getUserInfo( "dummy" );
+		} catch ( TNotFoundException | SQLException e ) {
+			return null;
+		}
+	}
+
+	public static void assertTutor( UserInfo userInfo ) throws TAuthorizationException
+	{
+		if ( userInfo == null || userInfo.role != Role.TUTOR ) {
+			throw new TAuthorizationException( AuthorizationError.NO_PERMISSION, "Permission denied!" );
+		}
+	}
+
+}