Added an endpoint for specific user profile lookups

Change-Id: I21970094937a84b136e82a1a66800db0c6b9ab43

jams-server/src/main/java/net/jami/jams/server/servlets/api/auth/device/UserProfileServlet.java

+/*
+ * Copyright (C) 2020 by Savoir-faire Linux
+ * Authors: William Enright <william.enright@savoirfairelinux.com>
+ *          Ndeye Anna Ndiaye <anna.ndiaye@savoirfairelinux.com>
+ *          Johnny Flores <johnny.flores@savoirfairelinux.com>
+ *          Mohammed Raza <mohammed.raza@savoirfairelinux.com>
+ *          Felix Sidokhine <felix.sidokhine@savoirfairelinux.com>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package net.jami.jams.server.servlets.api.auth.device;
+
+import com.jsoniter.output.JsonStream;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import lombok.extern.slf4j.Slf4j;
+import net.jami.jams.common.objects.user.UserProfile;
+
+import java.io.IOException;
+
+import static net.jami.jams.server.Server.userAuthenticationModule;
+
+@WebServlet("/api/auth/userprofile/*")
+public class UserProfileServlet extends HttpServlet {
+
+    //Get the user profile
+    @Override
+    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+
+        final UserProfile[] profile = new UserProfile[1];
+        String username = req.getPathInfo().replace("/","");
+
+        userAuthenticationModule.getAuthSources().forEach((k, v) -> {
+            if (v.getUserProfile(username) != null)
+                profile[0] = v.getUserProfile(username);
+        });
+
+        if (profile[0] != null) {
+            resp.getOutputStream().write(JsonStream.serialize(profile[0]).getBytes());
+            resp.setStatus(200);
+        } else {
+            resp.sendError(500,"User profile was not found!");
+            return;
+        }
+    }
+}