feat(server): adapt Hubble 2.0 frontend APIs and implement default graph/role management

hugegraph-server/hugegraph-api/src/main/java/org/apache/hugegraph/api/API.java

@@ -17,6 +17,7 @@
 
 package org.apache.hugegraph.api;
 
+import java.time.format.DateTimeFormatter;
 import java.util.Collection;
 import java.util.Map;
 import java.util.concurrent.Callable;
@@ -89,6 +90,13 @@ public class API {
     private static final String STANDALONE_ERROR =
             "GraphSpace management is not supported in standalone mode";
 
+    /**
+     * Shared date formatter for API response timestamps (thread-safe, reusable).
+     * Example output: {@code "2024-05-01 12:30:00"}
+     */
+    protected static final DateTimeFormatter DATE_FORMATTER =
+            DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+
     public static HugeGraph graph(GraphManager manager, String graphSpace,
                                   String graph) {
         HugeGraph g = manager.graph(graphSpace, graph);
@@ -282,6 +290,28 @@ public static void validPermission(boolean hasPermission, String user,
         }
     }
 
+    /**
+     * Returns {@code true} if the profile's {@code "name"} or {@code "nickname"}
+     * field starts with the given prefix.  Returns {@code true} when prefix is
+     * null or empty (i.e. no filtering).
+     *
+     * <p>Used by {@code GraphsAPI.listProfile} and {@code GraphSpaceAPI.listProfile}
+     * to filter results by a user-supplied prefix string.
+     *
+     * @param profile a map containing at least a {@code "name"} key
+     * @param prefix  the prefix to match against; ignored when blank
+     * @return whether the entry matches the prefix filter
+     */
+    protected static boolean isPrefix(Map<String, Object> profile, String prefix) {
+        if (prefix == null || prefix.isEmpty()) {
+            return true;
+        }
+        String name = profile.get("name").toString();
+        Object nicknameObj = profile.get("nickname");
+        String nickname = nicknameObj != null ? nicknameObj.toString() : "";
+        return name.startsWith(prefix) || nickname.startsWith(prefix);
+    }
+
     public static class ApiMeasurer {
 
         public static final String EDGE_ITER = "edge_iterations";

hugegraph-server/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/ManagerAPI.java

@@ -22,9 +22,12 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.commons.lang3.StringUtils;
+
 import org.apache.hugegraph.api.API;
 import org.apache.hugegraph.api.filter.StatusFilter;
 import org.apache.hugegraph.auth.AuthManager;
+import org.apache.hugegraph.auth.HugeDefaultRole;
 import org.apache.hugegraph.auth.HugeGraphAuthProxy;
 import org.apache.hugegraph.auth.HugePermission;
 import org.apache.hugegraph.core.GraphManager;
@@ -259,6 +262,46 @@ public String getRolesInGs(@Context GraphManager manager,
                                 result));
     }
 
+    @GET
+    @Timed
+    @Path("default")
+    @Consumes(APPLICATION_JSON)
+    public String checkDefaultRole(@Context GraphManager manager,
+                                   @QueryParam("graphspace") String graphSpace,
+                                   @QueryParam("role") String role,
+                                   @QueryParam("graph") String graph) {
+        LOG.debug("check if current user is default role: {} {} {}",
+                  role, graphSpace, graph);
+        ensurePdModeEnabled(manager);
+        AuthManager authManager = manager.authManager();
+        String user = HugeGraphAuthProxy.username();
+
+        E.checkArgument(StringUtils.isNotEmpty(role) &&
+                        StringUtils.isNotEmpty(graphSpace),
+                        "Must pass graphspace and role params");
+
+        HugeDefaultRole defaultRole;
+        try {
+            defaultRole = HugeDefaultRole.valueOf(role.toUpperCase());
+        } catch (IllegalArgumentException e) {
+            E.checkArgument(false, "Invalid role value '%s'", role);
+            defaultRole = null; // unreachable, satisfies compiler
+        }
+        boolean hasGraph = defaultRole.equals(HugeDefaultRole.OBSERVER);
+        E.checkArgument(!hasGraph || StringUtils.isNotEmpty(graph),
+                        "Must set a graph for observer");
+
+        boolean result;
+        if (hasGraph) {
+            result = authManager.isDefaultRole(graphSpace, graph, user,
+                                               defaultRole);
+        } else {
+            result = authManager.isDefaultRole(graphSpace, user,
+                                               defaultRole);
+        }
+        return manager.serializer().writeMap(ImmutableMap.of("check", result));
+    }
+
     private void validUser(AuthManager authManager, String user) {
         E.checkArgument(authManager.findUser(user) != null ||
                         authManager.findGroup(user) != null,
@@ -274,7 +317,7 @@ private void validType(HugePermission type) {
 
     private void validGraphSpace(GraphManager manager, String graphSpace) {
         E.checkArgument(manager.graphSpace(graphSpace) != null,
-                        "The graph space is not exist");
+                        "The graph space '%s' does not exist", graphSpace);
     }
 
     private static class JsonManager implements Checkable {

hugegraph-server/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/UserAPI.java

@@ -178,6 +178,9 @@ private static class JsonUser implements Checkable {
         @JsonProperty("user_password")
         @Schema(description = "The user password", required = true)
         private String password;
+        @JsonProperty("user_nickname")
+        @Schema(description = "The user nickname")
+        private String nickname;
         @JsonProperty("user_phone")
         @Schema(description = "The user phone number")
         private String phone;
@@ -197,6 +200,9 @@ public HugeUser build(HugeUser user) {
             if (this.password != null) {
                 user.password(StringEncoding.hashPassword(this.password));
             }
+            if (this.nickname != null) {
+                user.nickname(this.nickname);
+            }
             if (this.phone != null) {
                 user.phone(this.phone);
             }
@@ -215,6 +221,7 @@ public HugeUser build(HugeUser user) {
         public HugeUser build() {
             HugeUser user = new HugeUser(this.name);
             user.password(StringEncoding.hashPassword(this.password));
+            user.nickname(this.nickname);
             user.phone(this.phone);
             user.email(this.email);
             user.avatar(this.avatar);
@@ -233,10 +240,12 @@ public void checkCreate(boolean isBatch) {
         @Override
         public void checkUpdate() {
             E.checkArgument(!StringUtils.isEmpty(this.password) ||
+                            this.nickname != null ||
                             this.phone != null ||
                             this.email != null ||
-                            this.avatar != null,
-                            "Expect one of user password/phone/email/avatar]");
+                            this.avatar != null ||
+                            this.description != null,
+                            "Expect one of user password/nickname/phone/email/avatar/description");
         }
     }
 }