diff --git a/webpack/lib/content-controller.js b/webpack/lib/content-controller.js
index 1d91075..a9fc6b7 100644
--- a/webpack/lib/content-controller.js
+++ b/webpack/lib/content-controller.js
@@ -46,4 +46,33 @@ export class ContentController{
 	get messages(){ return this.rbuf.messages; }
 	get members(){  return this.rbuf.members;  }
 
+
+	/* (5) User getter
+	*
+	* @user_id<int>					User id
+	*
+	* @return user<array>			User data
+	*
+	---------------------------------------------------------*/
+	user(user_id=null){
+
+		/* (1) Error: if invalid user_id */
+		if( isNaN(user_id) )
+			return {};
+
+		/* (2) Error: unknown user */
+		if( this.cbuf.users == null || this.cbuf.users.length < 1 )
+			return {};
+
+		/* (3) return user data */
+		for( let u of this.cbuf.users )
+			if( u.uid === user_id )
+				return u;
+
+		/* (4) Error */
+		return {};
+
+	}
+
+
 }
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