feat: add user interactions in casbinJsGetPermissionForUser method (casbin#397)

* feat: add user interactions in casbinJsGetPermissionForUser method

* fix: Refactoring method casbinJsGetPermissionForUser

Author: JackYifan

src/main/java/org/casbin/jcasbin/main/Frontend.java

@@ -27,16 +27,20 @@ public static String casbinJsGetPermissionForUser(Enforcer e, String user) {
     Model model = e.getModel();
     Map<String, Object> m = new HashMap<>();
     m.put("m", model.saveModelToText().trim());
-    List<List<String>> policies = new ArrayList<>();
-    for (String ptype : model.model.get("p").keySet()) {
-      List<List<String>> policy = model.getPolicy("p", ptype);
-      for (List<String> p : policy) {
-        List<String> tmp = new ArrayList<>(p);
-        tmp.add(0, ptype);
-        policies.add(tmp);
-      }
-    }
-    m.put("p", policies);
+    m.put("p", getPolicyBySection(model,"p"));
+    m.put("g", getPolicyBySection(model,"g"));
     return new Gson().toJson(m);
   }
+  private static List<List<String>> getPolicyBySection(Model model, String section) {
+      List<List<String>> policies = new ArrayList<>();
+      for (String ptype : model.model.get(section).keySet()) {
+          List<List<String>> policy = model.getPolicy(section, ptype);
+          for (List<String> p : policy) {
+              List<String> tmp = new ArrayList<>(p);
+              tmp.add(0, ptype);
+              policies.add(tmp);
+          }
+      }
+      return policies;
+  }
 }

src/test/java/org/casbin/jcasbin/main/FrontendUnitTest.java

@@ -22,6 +22,7 @@
 import java.nio.file.Paths;
 import java.util.HashMap;
 import java.util.List;
+import java.util.regex.Pattern;
 
 import static org.junit.Assert.assertEquals;
 
@@ -35,6 +36,7 @@ public void testCasbinJsGetPermissionForUser() throws IOException {
     assertEquals(received.get("m"), expectedModelStr);
 
     String expectedPolicyStr = new String(Files.readAllBytes(Paths.get("examples/rbac_with_hierarchy_policy.csv")));
+    expectedPolicyStr = Pattern.compile("\n+").matcher(expectedPolicyStr).replaceAll("\n");
     String[] expectedPolicyItem = expectedPolicyStr.split(",|\n");
     int i = 0;
     for (List<String> sArr : (List<List<String>>) received.get("p")) {
@@ -43,5 +45,11 @@ public void testCasbinJsGetPermissionForUser() throws IOException {
         i++;
       }
     }
+    for (List<String> sArr : (List<List<String>>) received.get("g")) {
+      for (String s : sArr) {
+        assertEquals(expectedPolicyItem[i].trim(), s.trim());
+        i++;
+      }
+    }
   }
 }