我在从服务器调用https时遇到了一个非常烦人的错误。错误为 Http failure response for (unknown url): 0 Unknown Error
。
在我的角度应用程序中,我执行https调用,当它在浏览器上执行时一切都很好,但是当这个调用在服务器上执行时,我收到错误。这是完整的错误:
HttpErrorResponse {
headers: HttpHeaders { normalizedNames: Map {}, lazyUpdate: null,
headers: Map {} },
status: 0,
statusText: 'Unknown Error',
url: null,
ok: false,
name: 'HttpErrorResponse',
message: 'Http failure response for (unknown url): 0 Unknown Error',
error:
ProgressEvent {
type: 'error',
target:
XMLHttpRequest {
onloadstart: null,
onprogress: null,
onabort: null,
onerror: null,
onload: null,
ontimeout: null,
onloadend: null,
_listeners: [Object],
onreadystatechange: null,
_anonymous: undefined,
readyState: 4,
response: null,
responseText: '',
responseType: 'json',
responseURL: '',
status: 0,
statusText: '',
timeout: 0,
upload: [Object],
_method: 'GET',
_url: [Object],
_sync: false,
_headers: [Object],
_loweredHeaders: [Object],
_mimeOverride: null,
_request: null,
_response: null,
_responseParts: null,
_responseHeaders: null,
_aborting: null,
_error: null,
_loadedBytes: 0,
_totalBytes: 0,
_lengthComputable: false },
currentTarget:
XMLHttpRequest {
onloadstart: null,
onprogress: null,
onabort: null,
onerror: null,
onload: null,
ontimeout: null,
onloadend: null,
_listeners: [Object],
onreadystatechange: null,
_anonymous: undefined,
readyState: 4,
response: null,
responseText: '',
responseType: 'json',
responseURL: '',
status: 0,
statusText: '',
timeout: 0,
upload: [Object],
_method: 'GET',
_url: [Object],
_sync: false,
_headers: [Object],
_loweredHeaders: [Object],
_mimeOverride: null,
_request: null,
_response: null,
_responseParts: null,
_responseHeaders: null,
_aborting: null,
_error: null,
_loadedBytes: 0,
_totalBytes: 0,
_lengthComputable: false },
lengthComputable: false,
loaded: 0,
total: 0 } }
我的服务器和我调用的服务器的证书是受信任且有效的。这是我的服务器代码:
import 'reflect-metadata';
import 'zone.js/dist/zone-node';
import { renderModuleFactory } from '@angular/platform-server';
import { enableProdMode } from '@angular/core';
import * as express from 'express';
import { join } from 'path';
import { readFileSync } from 'fs';
import './global.imports';
import * as https from 'https';
enableProdMode();
const PORT = Number(process.env.PORT) || 4001;
const HOST_NAME = process.env.HOST;
const DIST_FOLDER = join(process.cwd(), 'dist');
const app = express();
const template = readFileSync(join(DIST_FOLDER, 'browser', 'index.html')).toString();
const {AppServerModuleNgFactory} = require('main.server');
app.engine('html', (_, options, callback) => {
const opts = {document: template, url: options.req.url};
renderModuleFactory(AppServerModuleNgFactory, opts)
.then(html => callback(null, html));
});
app.set('view engine', 'html');
app.set('views', 'src');
app.get('*.*', express.static(join(DIST_FOLDER, 'browser')));
app.get('*', (req, res) => {
res.render('index', {req});
});
const privateKey = readFileSync(`${DIST_FOLDER}/server/config/ssl/key.pem`, 'utf8');
const certificate = readFileSync(`${DIST_FOLDER}/server/config/ssl/cert.pem`, 'utf8');
const credentials = {key: privateKey, cert: certificate};
// your express configuration here
const httpsServer = https.createServer(credentials, app);
httpsServer.listen(PORT, HOST_NAME, () => {
console.log(`listening to https://${HOST_NAME}:${PORT}`);
});
这是https的一个明显问题,因为如果我把这个env变量放在nom开始之前,一切正常,NODE_TLS_REJECT_UNAUTHORIZED=0
,但这不是解决方案,因为这样我禁用了安全性。
如何解决此问题?
我也遇到了一个非常相似的问题,并为此挣扎了几个小时。应用process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0'
修复对我有用,但是,正如您所说,缺点是您将应用程序暴露给中间人攻击来损害应用程序的安全性。
经过进一步调查,我意识到问题不在于Angular。我在 Node shell 中运行了https.get('<my-api-url>')
,得到:Uncaught Error: unable to verify the first certificate
.事实证明,我只用叶证书配置了我的 API 服务器,而不是全链证书(叶 + CA 捆绑包)。与浏览器不同,Node 显然需要全链证书进行验证。
在我的服务器上安装全链证书后,问题消失了,没有对应用程序代码库进行任何更改。