feat: synchronized enforcer

package.json

@@ -39,6 +39,7 @@
     "typescript": "^3.7.2"
   },
   "dependencies": {
+    "await-lock": "^2.0.1",
     "expression-eval": "^2.0.0",
     "ip": "^1.1.5",
     "lodash": "^4.17.15"

src/coreEnforcer.ts

@@ -143,7 +143,7 @@ export class CoreEnforcer {
 
     this.model.printPolicy();
     if (this.autoBuildRoleLinks) {
-      await this.buildRoleLinks();
+      await this.buildRoleLinksInternal();
     }
   }
 
@@ -163,7 +163,7 @@ export class CoreEnforcer {
 
     this.model.printPolicy();
     if (this.autoBuildRoleLinks) {
-      await this.buildRoleLinks();
+      await this.buildRoleLinksInternal();
     }
     return true;
   }
@@ -238,10 +238,13 @@ export class CoreEnforcer {
   }
 
   /**
-   * buildRoleLinks manually rebuild the
-   * role inheritance relations.
+   * buildRoleLinks manually rebuild the role inheritance relations.
    */
   public async buildRoleLinks(): Promise<void> {
+    return this.buildRoleLinksInternal();
+  }
+
+  protected async buildRoleLinksInternal(): Promise<void> {
     await this.rm.clear();
     await this.model.buildRoleLinks(this.rm);
   }

src/index.ts

@@ -17,6 +17,7 @@ import * as Util from './util';
 export * from './config';
 export * from './enforcer';
 export * from './cachedEnforcer';
+export * from './syncedEnforcer';
 export * from './effect';
 export * from './model';
 export * from './persist';

src/managementEnforcer.ts

@@ -342,7 +342,7 @@ export class ManagementEnforcer extends InternalEnforcer {
     const ruleadded = await this.addPolicyInternal('g', ptype, params);
 
     if (this.autoBuildRoleLinks) {
-      await this.buildRoleLinks();
+      await this.buildRoleLinksInternal();
     }
 
     return ruleadded;
@@ -381,7 +381,7 @@ export class ManagementEnforcer extends InternalEnforcer {
     const ruleRemoved = await this.removePolicyInternal('g', ptype, params);
 
     if (this.autoBuildRoleLinks) {
-      await this.buildRoleLinks();
+      await this.buildRoleLinksInternal();
     }
 
     return ruleRemoved;
@@ -400,7 +400,7 @@ export class ManagementEnforcer extends InternalEnforcer {
     const ruleRemoved = await this.removeFilteredPolicyInternal('g', ptype, fieldIndex, fieldValues);
 
     if (this.autoBuildRoleLinks) {
-      await this.buildRoleLinks();
+      await this.buildRoleLinksInternal();
     }
 
     return ruleRemoved;