smartjwt/ts/smartjwt.classes.smartjwt.ts
2021-02-20 18:02:53 +00:00

90 lines
2.2 KiB
TypeScript

import * as plugins from './smartjwt.plugins';
export interface ISmartJWTJSONKeypair {
privatePem: string;
publicPem: string;
}
/**
* A class to create and validate JWTs and their keys
*/
export class SmartJwt<T extends object = any> {
public smartcryptoInstance = new plugins.smartcrypto.Smartcrypto();
public publicKey: plugins.smartcrypto.PublicKey;
public privateKey: plugins.smartcrypto.PrivateKey;
constructor() {}
/**
* creates a JWT
*/
public async createJWT(payloadArg: T) {
return plugins.jsonwebtoken.sign(payloadArg, this.privateKey.toPemString(), {
algorithm: 'RS256',
});
}
/**
* checks a JWT
*/
public async verifyJWTAndGetData(jwtArg: string): Promise<T> {
const result = plugins.jsonwebtoken.verify(jwtArg, this.publicKey.toPemString(), {
algorithms: ['RS256'],
});
return result as any;
}
/**
* sets a private key to create jwts with
*/
public async setPrivateKey(privateKey: plugins.smartcrypto.PrivateKey) {
this.privateKey = privateKey;
}
/**
* sets a public key
*/
public async setPublicKey(publicKey: plugins.smartcrypto.PublicKey) {
this.publicKey = publicKey;
}
/**
* gets the currently set kaypair as json
*/
public getKeyPairAsJson(): ISmartJWTJSONKeypair {
return {
privatePem: this.privateKey.toPemString(),
publicPem: this.publicKey.toPemString(),
};
}
/**
* sets the currently set keypair as json
*/
public setKeyPairAsJson(jsonKeyPair: ISmartJWTJSONKeypair) {
this.privateKey = plugins.smartcrypto.PrivateKey.fromPemString(jsonKeyPair.privatePem);
this.publicKey = plugins.smartcrypto.PublicKey.fromPemString(jsonKeyPair.publicPem);
}
/**
* creates a new keypair
*/
public async createNewKeyPair() {
const keypair = await this.smartcryptoInstance.createKeyPair();
this.setPrivateKey(keypair.privateKey);
this.setPublicKey(keypair.publicKey);
}
/**
* when you just want to validate something
* @param publicPemKey
*/
public setPublicPemKeyForVerification(publicPemKey: string) {
this.publicKey = plugins.smartcrypto.PublicKey.fromPemString(publicPemKey);
}
public async init() {
await this.createNewKeyPair();
}
}