2台の異なるマシン上に2つのSpringベースのWebアプリAとBがあります。
WebアプリAからWebアプリBへのhttps呼び出しを行いたいのですが、マシンBで自己署名証明書を使用しています。そのため、HTTPS要求は失敗します。
SpringでRestTemplateを使用するときにhttps証明書検証を無効にするにはどうすればよいですか? WebアプリAとBの両方が内部ネットワーク内にあるため、検証を無効にしたいが、データ転送はHTTPS経由で行わなければならない
追加する必要があるのは、カスタムHostnameVerifier
クラスです。証明書の検証をバイパスし、trueを返します
HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
public boolean verify(String hostname, SSLSession session) {
return true;
}
});
これは、コードに適切に配置する必要があります。
@Bean
public RestTemplate restTemplate()
throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {
TrustStrategy acceptingTrustStrategy = (X509Certificate[] chain, String authType) -> true;
SSLContext sslContext = org.Apache.http.ssl.SSLContexts.custom()
.loadTrustMaterial(null, acceptingTrustStrategy)
.build();
SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext);
CloseableHttpClient httpClient = HttpClients.custom()
.setSSLSocketFactory(csf)
.build();
HttpComponentsClientHttpRequestFactory requestFactory =
new HttpComponentsClientHttpRequestFactory();
requestFactory.setHttpClient(httpClient);
RestTemplate restTemplate = new RestTemplate(requestFactory);
return restTemplate;
}
基本的に、行う必要がある2つのことは、すべての証明書を信頼するカスタムTrustStrategyを使用することと、NoopHostnameVerifier()を使用してホスト名検証を無効にすることです。関連するすべてのインポートを含むコードは次のとおりです。
import Java.security.KeyManagementException;
import Java.security.KeyStoreException;
import Java.security.NoSuchAlgorithmException;
import Java.security.cert.CertificateException;
import Java.security.cert.X509Certificate;
import javax.net.ssl.SSLContext;
import org.Apache.http.conn.ssl.NoopHostnameVerifier;
import org.Apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.Apache.http.conn.ssl.TrustStrategy;
import org.Apache.http.impl.client.CloseableHttpClient;
import org.Apache.http.impl.client.HttpClients;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;
public RestTemplate getRestTemplate() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {
TrustStrategy acceptingTrustStrategy = new TrustStrategy() {
@Override
public boolean isTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
return true;
}
};
SSLContext sslContext = org.Apache.http.ssl.SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();
SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext, new NoopHostnameVerifier());
CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(csf).build();
HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
requestFactory.setHttpClient(httpClient);
RestTemplate restTemplate = new RestTemplate(requestFactory);
return restTemplate;
}
Add my response with cookie :
public static void main(String[] args) {
MultiValueMap<String, String> params = new LinkedMultiValueMap<>();
params.add("username", testUser);
params.add("password", testPass);
NullHostnameVerifier verifier = new NullHostnameVerifier();
MySimpleClientHttpRequestFactory requestFactory = new MySimpleClientHttpRequestFactory(verifier , rememberMeCookie);
ResponseEntity<String> response = restTemplate.postForEntity(appUrl + "/login", params, String.class);
HttpHeaders headers = response.getHeaders();
String cookieResponse = headers.getFirst("Set-Cookie");
String[] cookieParts = cookieResponse.split(";");
rememberMeCookie = cookieParts[0];
cookie.setCookie(rememberMeCookie);
requestFactory = new MySimpleClientHttpRequestFactory(verifier,cookie.getCookie());
restTemplate.setRequestFactory(requestFactory);
}
public class MySimpleClientHttpRequestFactory extends SimpleClientHttpRequestFactory {
private final HostnameVerifier verifier;
private final String cookie;
public MySimpleClientHttpRequestFactory(HostnameVerifier verifier ,String cookie) {
this.verifier = verifier;
this.cookie = cookie;
}
@Override
protected void prepareConnection(HttpURLConnection connection, String httpMethod) throws IOException {
if (connection instanceof HttpsURLConnection) {
((HttpsURLConnection) connection).setHostnameVerifier(verifier);
((HttpsURLConnection) connection).setSSLSocketFactory(trustSelfSignedSSL().getSocketFactory());
((HttpsURLConnection) connection).setAllowUserInteraction(true);
String rememberMeCookie = cookie == null ? "" : cookie;
((HttpsURLConnection) connection).setRequestProperty("Cookie", rememberMeCookie);
}
super.prepareConnection(connection, httpMethod);
}
public SSLContext trustSelfSignedSSL() {
try {
SSLContext ctx = SSLContext.getInstance("TLS");
X509TrustManager tm = new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] xcs, String string) throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] xcs, String string) throws CertificateException {
}
public X509Certificate[] getAcceptedIssuers() {
return null;
}
};
ctx.init(null, new TrustManager[] { tm }, null);
SSLContext.setDefault(ctx);
return ctx;
} catch (Exception ex) {
ex.printStackTrace();
}
return null;
}
}
public class NullHostnameVerifier implements HostnameVerifier {
public boolean verify(String hostname, SSLSession session) {
return true;
}
}
これはHTTPClient APIで使用できます。
public RestTemplate getRestTemplateBypassingHostNameVerifcation() {
CloseableHttpClient httpClient = HttpClients.custom().setSSLHostnameVerifier(new NoopHostnameVerifier()).build();
HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
requestFactory.setHttpClient(httpClient);
return new RestTemplate(requestFactory);
}
デフォルトの戦略を無効にするために、restTemplateを接続しているクラスに単純なメソッドを作成できます。
protected void acceptEveryCertificate() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {
TrustStrategy acceptingTrustStrategy = new TrustStrategy() {
@Override
public boolean isTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
return true;
}
};
restTemplate.setRequestFactory(new HttpComponentsClientHttpRequestFactory(
HttpClientBuilder
.create()
.setSSLContext(SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build())
.build()));
}
注:このメソッドは例外をさらにスローするだけなので、例外を処理する必要があります!
簡単な方法を見つけました
TrustStrategy acceptingTrustStrategy = (X509Certificate[] chain, String authType) -> true;
SSLContext sslContext = org.Apache.http.ssl.SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();
SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext);
CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(csf).build();
HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
requestFactory.setHttpClient(httpClient);
RestTemplate restTemplate = new RestTemplate(requestFactory);