4 files changed, 46 insertions, 2 deletions

diff --git a/src/org/traccar/api/resource/SessionResource.java b/src/org/traccar/api/resource/SessionResource.java
index a61738c7e..db8a5c837 100644
--- a/src/org/traccar/api/resource/SessionResource.java
+++ b/src/org/traccar/api/resource/SessionResource.java
@@ -29,6 +29,7 @@ import javax.ws.rs.GET;
 import javax.ws.rs.POST;
 import javax.ws.rs.Path;
 import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
 import javax.ws.rs.WebApplicationException;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
@@ -48,7 +49,7 @@ public class SessionResource extends BaseResource {
 
     @PermitAll
     @GET
-    public User get() throws SQLException {
+    public User get(@QueryParam("token") String token) throws SQLException {
         Long userId = (Long) request.getSession().getAttribute(USER_ID_KEY);
         if (userId == null) {
             Cookie[] cookies = request.getCookies();
@@ -69,6 +70,12 @@ public class SessionResource extends BaseResource {
                     userId = user.getId();
                     request.getSession().setAttribute(USER_ID_KEY, userId);
                 }
+            } else if (token != null) {
+                User user = Context.getPermissionsManager().getUserByToken(request.getParameter("token"));
+                if (user != null) {
+                    userId = user.getId();
+                    request.getSession().setAttribute(USER_ID_KEY, userId);
+                }
             }
         }
 
diff --git a/src/org/traccar/api/resource/UserResource.java b/src/org/traccar/api/resource/UserResource.java
index c6e84c918..2ff1639f6 100644
--- a/src/org/traccar/api/resource/UserResource.java
+++ b/src/org/traccar/api/resource/UserResource.java
@@ -66,7 +66,9 @@ public class UserResource extends BaseResource {
                 || old.getAdmin() != entity.getAdmin()
                 || old.getReadonly() != entity.getReadonly()
                 || old.getDisabled() != entity.getDisabled()
-                || old.getDeviceLimit() != entity.getDeviceLimit()) {
+                || old.getDeviceLimit() != entity.getDeviceLimit()
+                || old.getToken() == null && entity.getToken() != null
+                || old.getToken() != null && !old.getToken().equals(entity.getToken())) {
             Context.getPermissionsManager().checkAdmin(getUserId());
         } else {
             Context.getPermissionsManager().checkUser(getUserId(), entity.getId());
diff --git a/src/org/traccar/database/PermissionsManager.java b/src/org/traccar/database/PermissionsManager.java
index 1c995a11d..71633f6ef 100644
--- a/src/org/traccar/database/PermissionsManager.java
+++ b/src/org/traccar/database/PermissionsManager.java
@@ -39,6 +39,7 @@ public class PermissionsManager {
     private volatile Server server;
 
     private final Map<Long, User> users = new ConcurrentHashMap<>();
+    private final Map<String, Long> usersTokens = new HashMap<>();
 
     private final Map<Long, Set<Long>> groupPermissions = new HashMap<>();
     private final Map<Long, Set<Long>> devicePermissions = new HashMap<>();
@@ -81,10 +82,14 @@ public class PermissionsManager {
 
     public final void refreshUsers() {
         users.clear();
+        usersTokens.clear();
         try {
             server = dataManager.getServer();
             for (User user : dataManager.getUsers()) {
                 users.put(user.getId(), user);
+                if (user.getToken() != null) {
+                    usersTokens.put(user.getToken(), user.getId());
+                }
             }
         } catch (SQLException error) {
             Log.warning(error);
@@ -210,17 +215,28 @@ public class PermissionsManager {
     public void addUser(User user) throws SQLException {
         dataManager.addUser(user);
         users.put(user.getId(), user);
+        if (user.getToken() != null) {
+            usersTokens.put(user.getToken(), user.getId());
+        }
         refreshPermissions();
     }
 
     public void updateUser(User user) throws SQLException {
         dataManager.updateUser(user);
+        User old = users.get(user.getId());
         users.put(user.getId(), user);
+        if (user.getToken() != null) {
+            usersTokens.put(user.getToken(), user.getId());
+        }
+        if (old.getToken() != null && !old.getToken().equals(user.getToken())) {
+            usersTokens.remove(old.getToken());
+        }
         refreshPermissions();
     }
 
     public void removeUser(long userId) throws SQLException {
         dataManager.removeUser(userId);
+        usersTokens.remove(users.get(userId).getToken());
         users.remove(userId);
         refreshPermissions();
     }
@@ -234,4 +250,8 @@ public class PermissionsManager {
         return null;
     }
 
+    public User getUserByToken(String token) {
+        return users.get(usersTokens.get(token));
+    }
+
 }
diff --git a/src/org/traccar/model/User.java b/src/org/traccar/model/User.java
index a36fa0e31..aa24b795e 100644
--- a/src/org/traccar/model/User.java
+++ b/src/org/traccar/model/User.java
@@ -180,6 +180,21 @@ public class User extends Extensible {
         this.deviceLimit = deviceLimit;
     }
 
+    private String token;
+
+    public String getToken() {
+        return token;
+    }
+
+    public void setToken(String token) {
+        if (token != null && !token.isEmpty()) {
+            if (!token.matches("^[a-zA-Z0-9]{16,}$")) {
+                throw new IllegalArgumentException("Illegal token");
+            }
+            this.token = token;
+        }
+    }
+
     public String getPassword() {
         return null;
     }