feat: add generic from payload data

lib/passport.service.ts

@@ -2,7 +2,7 @@ import { Inject, Injectable } from '@nestjs/common'
 import { createHmac, randomUUID } from 'crypto'
 
 import { PASSPORT_OPTIONS } from './constants'
-import { PassportOptions, TokenRolePayload } from './interfaces'
+import { PassportOptions } from './interfaces'
 import { base64UrlDecode, base64UrlEncode, constantTimeEqual } from './utils'
 
 const TOKEN_TYPES = {
@@ -24,9 +24,8 @@ export class PassportService {
 		this.SECRET_KEY = options.secretKey
 	}
 
-	public generate(
-		userId: string,
-		role: TokenRolePayload,
+	public generate<T extends Record<string, any>>(
+		payload: T,
 		ttl: number,
 		tokenType: TokenType = TOKEN_TYPES.AUTH
 	) {
@@ -35,38 +34,38 @@ export class PassportService {
 
 		const jti = randomUUID()
 
-		const userPart = base64UrlEncode(userId)
-		const rolePart = base64UrlEncode(JSON.stringify(role))
+		const payloadPart = base64UrlEncode(JSON.stringify(payload))
 		const iatPart = base64UrlEncode(String(issuedAt))
 		const expPart = base64UrlEncode(String(expiresAt))
 		const jtiPart = base64UrlEncode(jti)
 
 		const serialized = this.serialize(
 			tokenType,
-			userPart,
-			rolePart,
+			payloadPart,
 			iatPart,
 			expPart,
 			jtiPart
 		)
 		const mac = this.computeHmac(this.SECRET_KEY, serialized)
 
-		return `${userPart}.${rolePart}.${iatPart}.${expPart}.${jtiPart}.${mac}`
+		return `${payloadPart}.${iatPart}.${expPart}.${jtiPart}.${mac}`
 	}
 
-	public verify(token: string, expectedType: TokenType = TOKEN_TYPES.AUTH) {
+	public verify<T = any>(
+		token: string,
+		expectedType: TokenType = TOKEN_TYPES.AUTH
+	) {
 		try {
 			const parts = token.split('.')
 
-			if (parts.length !== 6)
+			if (parts.length !== 5)
 				return { valid: false, reason: 'Не верный формат токена.' }
 
-			const [userPart, rolePart, iatPart, expPart, jtiPart, mac] = parts
+			const [payloadPart, iatPart, expPart, jtiPart, mac] = parts
 
 			const serialized = this.serialize(
 				expectedType,
-				userPart,
-				rolePart,
+				payloadPart,
 				iatPart,
 				expPart,
 				jtiPart
@@ -87,13 +86,10 @@ export class PassportService {
 			if (this.now() > expNumber)
 				return { valid: false, reason: 'Срок действия токена истёк.' }
 
-			const decodedRole = JSON.parse(
-				base64UrlDecode(rolePart)
-			) as TokenRolePayload
+			const decodedPayload = JSON.parse(base64UrlDecode(payloadPart)) as T
 			return {
 				valid: true,
-				userId: base64UrlDecode(userPart),
-				role: decodedRole,
+				payload: decodedPayload,
 				jti: base64UrlDecode(jtiPart)
 			}
 		} catch (error) {
@@ -107,13 +103,12 @@ export class PassportService {
 
 	private serialize(
 		domain: string,
-		user: string,
-		role: string,
+		payload: string,
 		iat: string,
 		exp: string,
 		jti: string
 	) {
-		return [domain, user, role, iat, exp, jti].join(
+		return [domain, payload, iat, exp, jti].join(
 			PassportService.INTERNAL_SEPARATOR
 		)
 	}