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passport.service.ts
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passport.service.ts
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import {
App,
Config,
Init,
Inject,
httpError,
MidwayHttpError,
} from '@midwayjs/core';
import { AbstractPassportMiddleware, AuthenticateOptions } from '../interface';
import { PassportAuthenticator } from './authenticator';
import { AbstractStrategyWrapper, Strategy } from './strategy';
import { create as createReqMock } from './request';
export function PassportStrategy(
Strategy: new (...args) => Strategy,
name?: string
): new (...args) => AbstractStrategyWrapper {
abstract class InnerStrategyAbstractClass extends AbstractStrategyWrapper {
private strategy;
@Inject()
passport: PassportAuthenticator;
@Init()
async init() {
const cb = (...params: any[]) => {
const done = params[params.length - 1];
Promise.resolve(this.validate(...params))
.then(result => {
if (Array.isArray(result)) {
done(null, ...result);
} else {
done(null, result);
}
})
.catch(err => {
done(err, null);
});
};
Object.defineProperty(cb, 'length', {
value: this.validate.length + 1,
});
this.strategy = new Strategy(this.getStrategyOptions(), cb);
if (name) {
this.passport.use(name, this.strategy);
} else {
this.passport.use(this.strategy);
}
if (this['serializeUser']) {
this.passport.addSerializer(this['serializeUser'].bind(this));
}
if (this['deserializeUser']) {
this.passport.addDeserializer(this['deserializeUser'].bind(this));
}
if (this['transformAuthInfo']) {
this.passport.addInfoTransformer(this['transformAuthInfo'].bind(this));
}
}
getStrategy() {
return this.strategy;
}
}
return InnerStrategyAbstractClass as any;
}
export type StrategyClass = new (...args) => AbstractStrategyWrapper;
export function PassportMiddleware(
strategy: StrategyClass | StrategyClass[]
): new (...args) => AbstractPassportMiddleware {
abstract class InnerPassportMiddleware extends AbstractPassportMiddleware {
@Config('passport')
passportConfig;
@App()
app;
@Inject()
passport: PassportAuthenticator;
resolve() {
return this.authenticate(this.getAuthenticateOptions());
}
getAuthenticateOptions(): AuthenticateOptions {
return undefined;
}
authenticate(options: AuthenticateOptions): any {
if (!Array.isArray(strategy)) {
strategy = [strategy];
}
if (this.passport.isExpressMode()) {
return async function passportAuthenticate(req, res, next) {
// init req method
this.attachRequestMethod(req);
// merge options with default options
const authOptions = {
...this.passportConfig,
...options,
};
for (const strategySingle of strategy as StrategyClass[]) {
// int strategy
await this.app.getApplicationContext().getAsync(strategySingle);
}
// authenticate
const authenticate = this.passport.authenticate([], authOptions);
let authenticateResult;
try {
authenticateResult = await authenticate(req);
} catch (err) {
if (err instanceof MidwayHttpError) {
throw err;
} else {
// 如果验证流程里有错误,抛出一个 500 错误
throw new httpError.InternalServerErrorError(err);
}
}
// success
if (authenticateResult.successResult) {
const breakNext = await this.onceSucceed(
options,
authenticateResult.successResult.user,
authenticateResult.successResult.info,
req,
res
);
if (breakNext) {
return;
}
} else if (authenticateResult.redirectResult) {
// redirect
res.statusCode = authenticateResult.redirectResult.status || 302;
res.setHeader('Location', authenticateResult.redirectResult.url);
res.setHeader('Content-Length', '0');
res.end();
return;
} else {
try {
this.allFailed(options, authenticateResult.failResult, req, res);
} catch (err) {
next(err);
return;
}
}
next();
}.bind(this);
} else {
return async function passportAuthenticate(ctx, next) {
// koa <-> connect compatibility:
const userProperty = this.passport.getUserProperty();
// create mock object for express' req object
const req = createReqMock(ctx, userProperty);
// init req method
this.attachRequestMethod(req);
// add Promise-based login method
const login = req.login;
ctx.login = ctx.logIn = function (user, options) {
return new Promise<void>((resolve, reject) => {
login.call(req, user, options, err => {
if (err) reject(err);
else resolve();
});
});
};
// add aliases for passport's request extensions to Koa's context
ctx.logout = ctx.logOut = req.logout.bind(req);
ctx.isAuthenticated = req.isAuthenticated.bind(req);
ctx.isUnauthenticated = req.isUnauthenticated.bind(req);
// merge options with default options
const authOptions = {
...this.passportConfig,
...options,
};
for (const strategySingle of strategy as StrategyClass[]) {
// int strategy
await this.app.getApplicationContext().getAsync(strategySingle);
}
// authenticate
const authenticate = this.passport.authenticate([], authOptions);
let authenticateResult;
try {
authenticateResult = await authenticate(req);
} catch (err) {
if (err instanceof MidwayHttpError) {
throw err;
} else {
// 如果验证流程里有错误,抛出一个 500 错误
throw new httpError.InternalServerErrorError(err);
}
}
// success
if (authenticateResult.successResult) {
const breakNext = await this.onceSucceed(
options,
authenticateResult.successResult.user,
authenticateResult.successResult.info,
req,
ctx
);
if (breakNext) {
return;
}
} else if (authenticateResult.redirectResult) {
// redirect
ctx.status = authenticateResult.redirectResult.status || 302;
ctx.set('Location', authenticateResult.redirectResult.url);
ctx.set('Content-Length', '0');
return;
} else {
this.allFailed(options, authenticateResult.failResult, req, {
end(data) {
ctx.body = data;
},
redirect(url) {
ctx.redirect(url);
},
setHeader(key, value) {
ctx.set(key, value);
},
});
return;
}
await next();
}.bind(this);
}
}
static getName() {
return 'passport';
}
protected async onceSucceed(
options: AuthenticateOptions,
user,
info,
req,
res
): Promise<boolean> {
let msg;
// if (options.successFlash) {
// let flash: any = options.successFlash;
// if (typeof flash === 'string') {
// flash = { type: 'success', message: flash };
// }
// flash.type = flash.type || 'success';
//
// const type = flash.type || info.type || 'success';
// msg = flash.message || info.message || info;
// if (typeof msg === 'string') {
// req.flash && req.flash(type, msg);
// }
// }
if (options.successMessage) {
msg = options.successMessage;
if (typeof msg === 'boolean') {
msg = info.message || info;
}
if (typeof msg === 'string') {
req.session.messages = req.session.messages || [];
req.session.messages.push(msg);
}
}
if (options.assignProperty) {
req[options.assignProperty] = user;
return;
}
await req.logIn(user, options);
if (options.authInfo !== false) {
await new Promise<void>((resolve, reject) => {
this.passport.transformAuthInfo(info, req, (err, tinfo) => {
if (err) {
reject(err);
} else {
req.authInfo = tinfo;
resolve();
}
});
});
}
if (options.successReturnToOrRedirect) {
let url = options.successReturnToOrRedirect;
if (req.session && req.session.returnTo) {
url = req.session.returnTo;
delete req.session.returnTo;
}
res.redirect(url);
return true;
}
if (options.successRedirect) {
res.redirect(options.successRedirect);
return true;
}
}
protected allFailed(
options: AuthenticateOptions,
failResult: { failures: Array<{ challenge: string; status: number }> },
req,
res
) {
// Strategies are ordered by priority. For the purpose of flashing a
// message, the first failure will be displayed.
let failure = failResult.failures[0] || ({} as any),
challenge = failure?.challenge || {},
msg;
// if (options.failureFlash) {
// let flash: any = options.failureFlash;
// if (typeof flash === 'string') {
// flash = { type: 'error', message: flash };
// }
// flash.type = flash.type || 'error';
//
// const type = flash.type || challenge.type || 'error';
// msg = flash.message || challenge.message || challenge;
// if (typeof msg === 'string') {
// req.flash && req.flash(type, msg);
// }
// }
if (options.failureMessage) {
msg = options.failureMessage;
if (typeof msg === 'boolean') {
msg = challenge.message || challenge;
}
if (typeof msg === 'string') {
req.session.messages = req.session.messages || [];
req.session.messages.push(msg);
}
}
if (options.failureRedirect) {
return res.redirect(options.failureRedirect);
}
// When failure handling is not delegated to the application, the default
// is to respond with 401 Unauthorized. Note that the WWW-Authenticate
// header will be set according to the strategies in use (see
// actions#fail). If multiple strategies failed, each of their challenges
// will be included in the response.
const rchallenge = [];
let rstatus, status;
for (let j = 0, len = failResult.failures.length; j < len; j++) {
failure = failResult.failures[j];
challenge = failure.challenge;
status = failure.status;
rstatus = rstatus || status;
if (typeof challenge === 'string') {
rchallenge.push(challenge);
}
}
res.statusCode = rstatus || 401;
// eslint-disable-next-line eqeqeq
if (res.statusCode === 401 && rchallenge.length) {
res.setHeader('WWW-Authenticate', rchallenge);
}
// if (options.failWithError) {
// throw new httpError.UnauthorizedError();
// }
throw new httpError.UnauthorizedError();
}
protected attachRequestMethod(req) {
// init req method
req.login = req.logIn = (
user,
options: {
session?: boolean;
keepSessionInfo?: boolean;
},
done?
) => {
if (typeof options === 'function') {
done = options;
options = {};
}
options = options || {};
const property = this.passport.getUserProperty();
req[property] = user;
if (this.passport.isEnableSession()) {
return this.passport.logInToSession(req, user).catch(err => {
req[property] = null;
if (done) {
done(err);
} else {
throw err;
}
});
} else {
return Promise.resolve().then(() => {
if (done) {
done();
}
});
}
};
req.logout = req.logOut = (options, done?) => {
if (typeof options === 'function') {
done = options;
options = {};
}
options = options || {};
req[this.passport.getUserProperty()] = null;
if (this.passport.isEnableSession()) {
return this.passport.logOutFromSession(req, options).catch(err => {
if (done) {
done(err);
} else {
throw err;
}
});
} else {
return Promise.resolve().then(() => {
if (done) {
done();
}
});
}
};
req.isAuthenticated = () => {
const property = this.passport.getUserProperty();
return !!req[property];
};
req.isUnauthenticated = () => {
return !req.isAuthenticated();
};
}
}
return InnerPassportMiddleware as any;
}